Page 1 SuperStack PathBuilder ¨ WAN Access Switches Reference Guide Release 2.03 http://www.3com.com/ Part No. 010-11941-0004 Published December 1998 ® S330/S310 ®...
Page 2 3Com Corporation reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Corporation to provide notiﬁcation of such revision or change. 3Com Corporation provides this documentation without warranty, term, or condition of any kind, either implied or expressed, including, but not limited to, the implied warranties, terms or conditions of merchantability, satisfactory quality, and ﬁtness for a particular purpose.
Page 3: Table Of Contents
Canadian CS-03 Approval Information CE Notice BOUT UIDE Introduction How to Use This Guide Conventions Related Documentation YSTEM ESCRIPTION PathBuilder S330 Features PathBuilder S310 Features Application Support Key Beneﬁts Speciﬁcations Options and Parts List NSTALLATION Installation Overview Site Requirements Installation Procedures...
Page 4 Updating the Flash File System Resetting the Interface Card Viewing an Equipment List Using the Conﬁguration Management Menu Using the List Card Menu Conﬁguring the Management CPU Viewing MCPU Conﬁguration Information Conﬁguring MCPU Shapers Conﬁguring the CTX Conﬁguring CTX Shapers S330/S310 M ODULES ORTS...
Page 5 Conﬁguring CTX Buffers Setting Congestion Thresholds Conﬁguring Ports Conﬁguring the T1/E1 Interface Conﬁguring the T1/E1 Ports Activation/Deactivation Bit Error Rates Conﬁguring UNI and IMA Groups Adding UNI Groups Adding IMA Groups Viewing and Modifying IMA and UNI Groups Deleting IMA and UNI Groups Viewing IMA Link Status Viewing IMA Group Status Conﬁguring the T1/ E1 Card...
Page 6 Viewing the Video Call Routing Table S330 D UILDER Managing System Alarms Viewing and Clearing Current Alarms PathBuilder S330/S310 Alarm Messages MCPU and CTX Module (System) Alarms Alarms Common to Several Interfaces DS1/E1 UNI Module Alarms DSX-1/E1 CBR Module Alarms...
Page 7 Viewing Virtual Circuit Statistics by Buffer (Queue) ECHNICAL UPPORT Online Technical Services World Wide Web Site 3Com FTP Site 3Com Bulletin Board Service Access by Analog Modem Access by Digital Modem 3ComFacts Automated Fax Service Support from Your Network Supplier Support from 3Com...
Page 8 S330/S310 M UILDER Management CPU CTX Switch CTX Output Queues and Memory Partition Setting up a Virtual Circuit VPI and VCI Ranges Early and Partial Packet Discard T1/E1 UNI Interface OC3/STM-1 Port DS3/E3 UNI Modules Serial Interface Serial Interface Frame Protocol Modes...
Page 9: Warning Information
CAUTION: Do not block the ventilation openings on the top and bottom of the unit during installation. A minimum of 1 rack unit (1.75”) space is required. Rack conﬁgurations with certain combinations of 3Com equipment installed in racks with a height greater than 50” (127 cm) may require a counter-balance weight, a stabilizer bar, or anti-tip legs to ensure rack stability in accordance with safety agency regulations.
Page 10: Power And Power Cords
Cords whose line to line voltage exceeds 250 VAC RMS deﬁned by EN 60950 as having no direct connection to earth. The PathBuilder S330/S310 will auto-conﬁgure for 115 VAC or 220-240 VAC. NORTH AMERICAN APPLICATIONS: Use a UL Listed and CSA Certiﬁed Cord Set rated 6 amps, consisting of a minimum 18 AWG, Type SVT or SJT three conductor cord maximum of 15 feet in length, with a NEMA 5-15P plug.
Page 11: Supplementary Regulatory Information
This section describes the compliance of the SuperStack and the SuperStack S330/S310) with FCC, Industry Canada, and CE regulations. FCC Part 68 Statement This equipment complies with Part 68 of the Federal Communications Commission (FCC) rules. On the product is a label that contains the FCC registration number for this device.
Page 12: Ce Notice
HAPTER UPPLEMENTARY EGULATORY NFORMATION Repairs to certiﬁed equipment should be made by an authorized Canadian maintenance facility designated by the supplier. Any repairs or alterations you make to this equipment, or equipment malfunctions, may give the telecommunications company cause to request that you disconnect the equipment.
Page 13: About
If the information in the Release Notes shipped with your product differs from the information in this guide, follow the Release Notes. Most user guides and release notes are available in Adobe Acrobat Reader Portable Document Format (PDF) or HTML on the 3Com World Wide Web site: http://www.3com.com/ How to Use This Guide Table 1 shows where to ﬁnd speciﬁc information in this guide.
Page 14: Conventions
In addition to this guide, the following documentation may help you use the Documentation PathBuilder S330/S310: PathBuilder S330/S310 Release Notes—Provides conﬁguration help and information about new features and any known limitations and issues found in the release. PathBuilder Switch Manager User Guide—Describes how to use PathBuilder Switch Manager to conﬁgure and manage PathBuilder WAN switches.
Page 15: System Description
WAN link. The PathBuilder S330 and PathBuilder S310 use basically the same hardware, with the PathBuilder S330 providing more interfaces. The following subsections describe the features of each unit in greater detail.
Page 16 DS3 or E3 ATM trafﬁc across the WAN. Figure 1 shows the PathBuilder S330 with the optional CBR module installed in expansion slot 7, Voice Compression module in slot 8, and DS3/E3 UNI module in...
Page 17: Pathbuilder S310 Features
CPE access. Its physical appearance is the same as that of the PathBuilder S330 but its software does not enable all the ports. You can upgrade from the PathBuilder S310 to the PathBuilder S330 (multi-mode ﬁber model) simply by purchasing software.
Page 18 ISDN D-channel for carrying signal messages. Figure 2 shows the PathBuilder S310, with the optional CBR module installed in expansion slot 7 and the Voice Compression module in slot 8. Figure 2 PathBuilder S310 WAN Access Switch RS-232 NMS Console...
Page 19: Application Support
S330 Only Local management via a VT100 terminal (or a PC emulating one) connected directly to the PathBuilder S330/S310, or through a Telnet session. Software downloading via TFTP, FTP, or direct via RS232 Built-in, menu-driven software for conﬁguring modules, ports, virtual circuits, and bridges;...
Page 20: Speciﬁcations
YSTEM ESCRIPTION Speciﬁcations Table 4 lists complete speciﬁcations for the PathBuilder S330 WAN access switch. Table 5 lists complete speciﬁcations for the PathBuilder S310 WAN access switch. Speciﬁcations are subject to change without notice. Table 4 PathBuilder S330 System Speciﬁcations...
Page 21 Table 4 PathBuilder S330 System Speciﬁcations Regulatory compliance Safety UL listed (1950, 3rd edition) CSA 22.2 EN60950 FCC Part 68 Emissions FCC Part 15, Class A STANDARDS ATM Forum UNI 3.x, T1/E1 CES 2.0, IMA, ATM DXI 1.0 ANSI T1.403, T1.617 Annex D...
Page 22 1: S HAPTER YSTEM ESCRIPTION Table 4 PathBuilder S330 System Speciﬁcations Ethernet Interface Number of ports Interface type Connector type Connector pinouts Data support ATM support Shaping Forwarding rate n x T1 / n x E1 Interface Number of ports...
Page 23 Table 4 PathBuilder S330 System Speciﬁcations OC3/STM-1 Interface Number of ports Interface type SR or IR Connector type Duplex SC Line Code SONET scrambled, NRZ Fiber Type Multi-mode or single-mode Wavelength 1300nm Receiver input power -30.0 dBm minimum (SR), -31 dBm minimum (IR) -14.0 dBm maximum (SR), -8 dBm maximum (IR)
Page 24 1: S HAPTER YSTEM ESCRIPTION Table 4 PathBuilder S330 System Speciﬁcations Connector type at end of RS-422 cable Connector pinouts Connector type at end of EIA530 cable Connector pinouts (continued) DB-37 subminiature, female for DCE, male for DTE A Side...
Page 25 Table 4 PathBuilder S330 System Speciﬁcations Connector type at end of X.21 DB-15 subminiature, cable female for DCE, male for DTE X.21 DTE cable pinouts Signal Name (60-pin connector) to DB-15 male Frame GND Circuit GND DCD (not used; tristate when in DTE mode)
Page 26 1: S HAPTER YSTEM ESCRIPTION Table 4 PathBuilder S330 System Speciﬁcations X.21 DCE cable pinouts (60-pin connector) to DB-15 female (continued) Signal Pin # on Pin # on Name 60-pin DB-15 Frame GND Circuit GND 3,10 9,10 5,12 DCD (not used; tristate when in DTE mode)
Page 27 Table 4 PathBuilder S330 System Speciﬁcations CBR MODULE SPECIFICATIONS Number of ports Interface type(s) 3 direct T1-DSX/E1, 1 DSU/CSU T1-DSX/E1 physical 3 each RJ48 Impedance 100 Ohms Framing D4 or ESF Line Coding AMI or B8ZS 0 - 655 feet Serial HD-pin;...
Page 28 1: S HAPTER YSTEM ESCRIPTION Table 4 PathBuilder S330 System Speciﬁcations Connector type at end of V.35/RS-366 cable Connector pinouts (continued) DB-25 subminiature, female for DCE From Frame Ground J1-46 Circuit Ground J1-45 J1-35 J1-42 J1-43 J1-44 J1-34 J1-33 J1-28...
Page 29 Table 4 PathBuilder S330 System Speciﬁcations VOICE COMPRESSION MODULE SPECIFICATIONS Number of ports Interface type(s) 1direct T1-DSX/E1 T1-DSX/E1 physical 1 each RJ48 Impedance 100 Ohms Framing D4 or ESF Line Coding AMI or B8ZS 0 - 655 feet Clock DCE, Internal...
Page 30 1: S HAPTER YSTEM ESCRIPTION Table 5 PathBuilder S310 System Speciﬁcations SYSTEM SPECIFICATIONS Ethernet 10 Base T V.35/RS422 T1/E1 UNI Mechanical: Shelf dimensions 19” rack mountable Rack mount spacing Cooling Unit weight (approx.) Shipping weight (approx.) Input power requirements Power consumption Maximum current Environmental: Operating temperature...
Page 31 Table 5 PathBuilder S310 System Speciﬁcations Front panel LEDs: Common Power, Status, Alert Ethernet Tx, Rx, Link Serial TD, RD Alert, Active Management Interface Interface type RS-232C Connector type Female DB-9 Connector pinouts PIN 1 - Carrier Detect PIN 2 - Rx Data PIN 3 - Tx Data PIN 4 - DTR PIN 5 - Signal Ground...
Page 32 1: S HAPTER YSTEM ESCRIPTION Table 5 PathBuilder S310 System Speciﬁcations T1/E1 UNI Interface Number of ports Type of interface Connector type Connector pinouts Framing Line Coding ATM framing ATM support Electrical interface Attenuation Payload scrambling (continued) T1/E1 (with integral CSU and DSX) RJ48C or G703 coax with E1 Balun Adapter PIN 1 - Receive ring PIN 2 - Receive Tip...
Page 33 Table 5 PathBuilder S310 System Speciﬁcations Serial Interface Number of ports Interface type HD 60-pin (DCE or DTE), female; V.35/RS-449/EIA530 (through cable converters) Data support Transparent HDLC/SDLC, Frame Relay, ATM DXI ATM support AAL5 Clock DCE or DTE, Internal or external (smooth clock) Shaping VC level, dual leaky bucket Data rates:...
Page 34 1: S HAPTER YSTEM ESCRIPTION Table 5 PathBuilder S310 System Speciﬁcations Connector type at end of EIA530 cable Connector pinouts Connector type at end of X.21 cable X.21 DTE cable pinouts (60-pin connector) to DB-15 male (continued) DB-25 subminiature, female for DCE, male for DTE A Side B Side Chassis Ground...
Page 35 Table 5 PathBuilder S310 System Speciﬁcations X.21 DCE cable pinouts Signal Name (60-pin connector) to DB-15 female Frame GND Circuit GND DCD (not used; tristate when in DTE mode) LL (not used) SCTE+ SCTE- SCR+ SCR- (tristate SCR + and - when in DTE mode, double term., double buffer) SCT+ SCT-...
Page 36 1: S HAPTER YSTEM ESCRIPTION Table 5 PathBuilder S310 System Speciﬁcations CBR MODULE SPECIFICATIONS Number of ports Interface type(s) T1-DSx/E1 physical Impedance Framing Line Coding Serial Clock Front panel LEDs (1-3) Data rates ATM support Timing Cell Delay Variation Tolerance Class of Service T1-DSX/E1 connector type T1-DSX/E1 connector pinouts...
Page 37 Table 5 PathBuilder S310 System Speciﬁcations Connector type at end of DB-25 subminiature, V.35/RS-366 cable female for DCE Connector pinouts Frame Ground Circuit Ground SCTE+ SCTE- SCR+ SCR- SCT+ SCT- 366_RI 366_PWI 366_ACR 366_PND 366_DSC 366_DLO 366_NB1 366_NB2 366_NB4 366_NB8 366_CRQ 366_DPR Signal Ground...
Page 38 1: S HAPTER YSTEM ESCRIPTION Table 5 PathBuilder S310 System Speciﬁcations VOICE COMPRESSION MODULE SPECIFICATIONS Number of ports Interface type(s) T1-DSX/E1 physical Impedance Framing Line Coding Clock Front panel LEDs (1-7) Data rates ATM support Timing Class of Service T1-DSX/E1connector type T1-DSX/E1 connector pinouts Frame Relay support Compression Types...
Page 39: Options And Parts List
Options and Parts List The tables below list available PathBuilder S330/S310 options. Contact 3Com or your VAR with the appropriate part number for ordering and pricing information. Table 6 PathBuilder S330 Part Numbers Part Number 3C63300A-AC-NC 3C63300A-DC-NC 3C63303A-AC-NC 3C63303A-DC-NC 3C63304-NC...
Page 40 1: S HAPTER YSTEM ESCRIPTION Table 7 PathBuilder S310 Part Numbers (continued) Part Number 3C63504 3C63504 3C63311 3C63314 3C63313 Table 8 Ancillary Items Part Number 3C16071 3C16073 Table 9 Cables Part Number 3C16079 3C63319 3C63905 3C63906 3C63907 3C63908 3C63909 3C63910 3C63913 3C63914 3C63920...
Page 41: Installation
When you receive the PathBuilder S330/S310, do the following: Inspecting the PathBuilder S330/S310 1 Unpack and inspect the PathBuilder S330/S310 equipment for any damage that might have occurred during shipment. 2 Inventory the equipment against the shipping notice. 3 Save the boxes and packing materials in the event there is damage or in case you need to reship the unit at a future date.
Page 42: Installation Overview
2: I HAPTER NSTALLATION Installation Overview Figure 3 summarizes the overall installation procedure for the PathBuilder S330/S310. Figure 3 General Installation Procedure Prepare the Site: Verify clearance around the shelf site Fabricate and run cabling and wiring Step 1 Install the optional modules...
Page 43 Figure 4 shows an example of a PathBuilder S330 conﬁguration with all of the associated cabling connected. Figure 4 PathBuilder S330 Full System Conﬁguration Video/Audio Codec V.35/ RS-366 RS-449/ RS-530/ X.21 Slot 7 V.35/ RS-232 RS-449/ RS-530/ 10BASE-T X.21 NMS Console...
Page 44: Site Requirements
X.21 RS-232 NMS Console Site Requirements The operating site for the PathBuilder S330/S310 must meet the following requirements: Be within the maximum distances to the port and trunk connections, as well as the NMS terminal Have interconnect cabling and wiring ready and labeled Have a dedicated source of switched and fused AC power or a primary DC source.
Page 45: Installation Procedures
Optional Modules in S330/S310 chassis. the Unit The PathBuilder S330/S310 supports three optional modules: Figure 6 CBR Module Connections CBR module—a board consisting of one V.35/RS-366/RS-449/RS-530/X.21 interface and three T1-DSX or E1 interfaces (one T1-DSX or E1 interface for the PathBuilder S310).
Page 46 2: I HAPTER NSTALLATION Voice compression module—a board consisting of one T1-DSX or E1 interface. It services trafﬁc generated by your existing PBXs, channels, T1/E1 multiplexers, CSU/DSUs, and video conferencing devices. Install the Voice Compression module in slot 7 or slot 8. Figure 7 shows the VCM module connections.
Page 47: Installing The Optional Modules In The Unit
Remove the eight screws (three on each side and two in the rear), as shown in Figure 9. Figure 9 Removing the Eight Screws from the PathBuilder S330/S310 Unit b Push the cover back (arrow 1) and lift it up from the rear (arrow 2), as shown in Figure 10.
Page 48 2: I HAPTER NSTALLATION 3 Remove the cover plate from the slot into which you want to install the optional module by unscrewing the two retaining screws. Figure 11 shows the retaining screws being removed from slot 7. Figure 11 Removing the Cover Plate from Slot 7 4 Insert the optional card into the appropriate slot (7 for the CBR module;...
Page 49: Step 2: Install The Unit In The Rack
See Figure 14 for details. If the PathBuilder S330/S310 is mounted in an enclosure, plan on enough clearance at the front for cable and wiring service loops.
Page 50: Step 3: Connect Ac Or Dc Power And (Optionally) The Rps System
3 Support the shelf in its mounting place and attach the mounting hardware. Step 3: Connect AC or You connect the AC/DC power at the rear of the PathBuilder S330/S310 shelf. DC Power and Table 10 outlines the speciﬁcations for the AC/DC Source.
Page 51: Installing The Optional Rps System
The PathBuilder S330/S310 also supports the SuperStack II Redundant Power Supply (RPS). Figure 15 above shows the location of the RPS. Only connect a 3Com RPS, option 3C16073, to this socket. For details, follow the installation instructions in the guide accompanying the RPS.
Page 52: Step 4: Connect I/O Cabling
DS3/E3 UNI modules, see “Step 1 (Optional): Install the Optional Modules in the Unit” earlier in this chapter. The following LEDs indicate the status of the PathBuilder S330/S310 as a whole. (See Figure 17.) Power (green)—Illuminates when the unit is turned on.
Page 53 Figure 17 PathBuilder S330/S310 Common LEDs Figure 18 shows the port conﬁguration of a PathBuilder S330/S310. Figure 18 PathBuilder S330/S310 Ports and CBR Module Optional voice compression module installed in expansion slot 8 CBR module T1-DSX or E1 ports (only 1 port for PathBuilder S310) CBR (V.35/RS-449/RS-530/X.21)
Page 54: Connecting To The T1/E1 Uni Interface
LEDs indicate the status of each T1/E1 port. (See Figure 19.) The PathBuilder S330 has four of each of the following LEDs (one for each T1/E1 port). The PathBuilder S310 has one of each of the following LEDs (for its one T1/E1 port).
Page 55 The following tables describe the serial port connector pinouts. Note that PathBuilder S330/S310 cables are compatible with CISCO cables, except for the DCE EIA530 which CISCO does not manufacture. Table 11 Connector Pinouts for V.35 DTE Cable (60-pin connector) to V.35 Male...
Page 56 2: I HAPTER NSTALLATION Table 12 Connector Pinouts for V.35 DCE Cable (60-pin Connector) to V.35 Female Signal Name Frame GND Circuit GND LL (not used) SCTE+ SCTE- SCR+ SCR- SCT+ SCT- Shorting GR 1 Shorting GR 2 Shorting GR 3 Pin # on 60- pin Pin # on V.35 Direction (for...
Page 57 Table 13 Connector Pinouts for RS-449 DTE Cable (60-pin connector) to DB-37 Male Pin # on 60-pin Signal Name Connector Frame GND Circuit GND 15, 16, 45 9, 10 1, 2 3, 4 DCD (not used, see 5, 6 DCE cable) 7, 8 LL (not used) SCTE+...
Page 58 2: I HAPTER NSTALLATION Table 14 Connector Pinouts for RS-449 DCE Cable (60-pin Connector) to DB-37 Female Signal Name Frame GND Circuit GND LL (not used) SCTE+ SCTE- SCR+ SCR- SCT+ SCT- Shorting GR 1 Pin # on DB-37 Pin # on 60-pin Direction (for Connector Connector...
Page 59 Table 15 Connector Pinouts for EIA530 DTE cable (60-pin Connector) to DB-25 Male Pin # on 60-pin Signal Name Connector Frame GND Circuit GND 9, 10 1, 2 3, 4 DCD (not used, see 5, 6 DCE cable) 7, 8 LL (not used) SCTE+ SCTE-...
Page 60 2: I HAPTER NSTALLATION Table 16 Connector Pinouts for EIA530 DCE cable (60-pin Connector) to DB-25 Female Signal Name Frame GND Circuit GND DCD (not used, see DCE cable) LL (not used) SCTE+ SCTE- SCR+ SCR- SCT+ SCT- Shorting GR 1 Pin # on 60-pin Pin # on DB-25 Direction (for...
Page 61 Table 17 Connector Pinouts for X.21 DTE cable (60-pin Connector) to DB-15 Male Pin # on 60-pin Signal Name Connector Frame GND Circuit GND 9, 10 1, 2 DCD (not used, see DCE cable) LL (not used) SCTE+ SCTE- SCR+ SCR- SCT+ SCT-...
Page 62 LEDs indicate the status of the serial port. See Figure 20. RD active (green)—Flashes with receiving signals. TD active (green)—Flashes with transmitting signals. Figure 20 PathBuilder S330/S310 Serial Port LEDs Pin # on 60-pin Pin # on DB-25...
Page 63: Connecting To The Ethernet Port
To connect to the Ethernet port, run a cable from the port to the LAN. The Link LED illuminates if you make the connection properly. The cable run from the PathBuilder S330/S310 Ethernet port to the Ethernet LAN connection must be no longer than 100 meters, in compliance with EIA/TIA standards for 10BaseT. This cable length should include service loops at the ends and the complete cable route distances.
Page 64: Connecting To The Oc3/Stm-1 Port
NSTALLATION Connecting to the OC3/STM-1 Port The OC3/STM-1 UNI port is equipped with an internal SC-type connector S330 only supporting the use of multi-mode or single-mode ﬁber optic cable, as shown in Figure 22 and Figure 23. Figure 22 OC3/STM-1 UNI (Multi-Mode Fiber Optic Cable)
Page 65: Connecting To The Cbr Module
V.35 for video data and RS-366 for video dial. These interfaces are broken out from a 50-pin connector on the S330/S310 via a Y cable. Use the V.35/RS-366 serial CBR connector to connect directly to H.320 video codec devices such as PictureTel, Vtel, and CLI.
Page 66 2: I HAPTER NSTALLATION Table 20 lists the CBR V.35/RS-366 Y cable pinouts. Table 20 CBR V.35/RS-366 Connector Pinouts Connector type at end of V.35/RS-366 cable Connector pinouts DB-25 subminiature, female for DCE From Frame Ground J1-46 Circuit Ground J1-45 J1-35 J1-42 J1-43...
Page 67: Connecting To The Voice Compression Module
CBR module. ALARM (red)—Powers up in the “off” state and illuminates when an alarm condition is detected on the corresponding T1-DSX/E1 or V.35 line. Figure 25 PathBuilder S330 CBR Module LEDs Alarm Inservice...
Page 68: Connecting To The Ds3/E3 Module
Connecting to the DS3/E3 Module Connect the DS3/E3 module to a DS3 repeater using the female BNC connectors. S330 only The maximum coax run is 450 feet. The transmitter in the DS3 UNI Module includes selectable LBO (Line Build-Out) to adjust the output signal to cable runs of 0-255 or 225-450 feet.
Page 69: Step 5: Connect The Management Terminal
1 Connect a VT 100 terminal to the RS-232 (console) port on the front of the PathBuilder S330/S310. 2 Use the VT100 terminal to input an IP address for the PathBuilder S330/S310. See “Setting up Communication Parameters” in Chapter 3 for details.
Page 70 2: I HAPTER NSTALLATION Figure 28 illustrates the network management station terminal connection options. Figure 28 Network Management Station Terminal Connection Options 10BASE-T RS-232 VT-100 NMS Terminal...
Page 71: Getting Started
You enter initial conﬁguration information via the local user interface. This interface is presented on a VT100 terminal connected to the RS-232 (console) port on the front of the PathBuilder S330/S310, as shown in Figure 29. See Chapter 2 for details about connecting the VT100 terminal.
Page 72 3: G HAPTER ETTING TARTED When the PathBuilder S330/S310 is powered up and operating, and your terminal is connected, operating, and properly conﬁgured, the title screen shown in Figure 30 appears on your terminal. Figure 30 NMS PathBuilder S330/S310 Title Screen The Title screen identiﬁes the interface and its software release number and...
Page 73: Using The Menus
Exiting the program in any other way, such as turning power off to the network management station, may cause unpredictable results. Understanding the The PathBuilder S330/S310 menu hierarchy includes several layers of menus. Each Menu Hierarchy submenu has a name that is the same or similar to the name of the option that displays it.
Page 74: Using The Menus To Change Settings
Alarm Indicator If the PathBuilder S330/S310 detects an alarm condition, an alarm indicator (the highlighted word “Alarm”) appears to the left of the access status on every menu and display, as shown in Figure 32.
Page 75: Performing Initial System Conﬁguration
See Chapter 4 for instructions on conﬁguring speciﬁc PathBuilder S330/S310 ports and modules. Conﬁguring the System By default, the PathBuilder S330/S310 uses the internal clock as its reference Clock clock. You can specify up to eight additional clocks for the system to use as a reference clock.
Page 76: Setting Up Communication Parameters
PathBuilder S330/S310 will automatically use the clock with the next highest priority as its reference clock. Setting up In order for the PathBuilder S330/S310 to communicate to the Ethernet network, Communication you must set the correct communication parameters. To do this, select [3] Manage Parameters IP Network Conﬁguration From the System Administration menu, to display the...
Page 77: Conﬁguring The Local Host Ip Address
Figure 35 Manage IP Network Conﬁguration Menu Conﬁguring the Local Host IP Address In order for the PathBuilder S330/S310 to communicate on the network, you must use the VT100 terminal to assign an IP address to the device. Once you have entered the IP address for the PathBuilder S330/S310 on the VT100 terminal, you can continue conﬁguring the device on the local console, or you can use a Telnet...
Page 78 PathBuilder S330/S310 Management CPU. You should consult the network administrator to obtain an IP Address for the PathBuilder S330/S310 which will allow its 10BaseT Management port to co-exist with hosts on its local LAN. Subnet Mask—Provided by the network administrator.
Page 79: Conﬁguring Trap Clients
Conﬁguring Trap Clients Trap clients are the network management stations to which you want the PathBuilder S330/S310 to send traps. You can specify up to four trap clients. To conﬁgure trap clients, follow these steps: 1 From the Manage IP Network Conﬁguration menu, select [2] Trap Client Conﬁguration to display the Trap Client Conﬁguration menu, shown in Figure 39.
Page 80: Conﬁguring The Default Gateway
IP Address—The IP address of the network management station to which you want the PathBuilder S330/S310 to send traps. Subnet Mask—The subnet mask for the network management station to which you want the PathBuilder S330/S310 to send traps. Port Number—The system-deﬁned port number. You should not modify this number. (SNMP/UDP).
Page 81: Setting The Time And Date
7 Select [11] Previous Menu to return to the Main menu. Setting up Passwords The PathBuilder S330/S310 supports a total of up to 10 logins at the following three access levels: Read-Only User—Can view information and conﬁguration settings in the PathBuilder S330/S310 interface, but cannot set parameters or make any changes.
Page 82 3: G HAPTER ETTING TARTED This section tells you how to set passwords. For details about how to take over read-write sessions and how to erase the system database, see “Performing Additional Super User Functions” later in this chapter. The default password for all three access levels is password. This password logs you on initially as a super user.
Page 83: Performing Additional Super User Functions
CAUTION: Be sure to record your new password and keep the record in a safe place. If you forget your password and have no record of it, you can contact 3Com for assistance, but we may need to delete your database in order to solve the problem.
Page 84: Conﬁguring In-Band Management
Enter 1 to set the VC Type as VCC. 2 Build a PVC on the near-end PathBuilder S330/S310, using the MCPU as side A of the virtual circuit. To do this, you need to set the following side A parameters on the Add Virtual Circuit screen, as shown in Figure 45.
Page 85 Figure 45 Add Virtual Circuit Menu 3 Build a PVC on the far-end PathBuilder S330/S310, using the MCPU as side A of the circuit. Set the following parameters on the Add Virtual Circuit screen: Shaper Number—Choose the number corresponding to the desired shaper value.
Page 86 3: G HAPTER ETTING TARTED...
Page 87: Configuring Path Builder S330/S310 Modules , Ports , And Applications
ONFIGURING ODULES PPLICATIONS ® II PathBuilder ® S310 WAN access switches’ (PathBuilder S330/S310) Viewing and Conﬁguring System Information Using the Conﬁguration Management Menu Using the List Card Menu Conﬁguring the Management CPU Conﬁguring the CTX Conﬁguring Ports Conﬁguring the T1/E1 Interface...
Page 88: Specifying General System Information
3 Enter the new setting. 4 Repeat steps 2 and 3 for any other settings you want to change. 5 Select [8] Previous Menu to return to the System Administration menu. S330/S310 M ODULES ORTS PPLICATIONS...
Page 89: Viewing Rs-232 Port Conﬁguration Information
Viewing RS-232 Port You enter initial conﬁguration information using the VT100 terminal connected to Conﬁguration the PathBuilder S330/S310’s RS-232 port. See “Logging On” in Chapter 3, for Information details. To view the terminal conﬁguration: From the System Administration menu, select [5] RS-232 Port Conﬁguration.
Page 90: Downloading New Management Processor Firmware
ﬁrmware containing the bootstrap code used to bring up the operation ﬁrmware.) Downloading New The PathBuilder S330/S310 module retains the operation ﬁrmware in a ﬂash Management Processor memory bank located in the motherboard. On power-up or reset, the code image Firmware is copied from the ﬂash memory to the main memory.
Page 91: Downloading Via The Ethernet Port
This action will erase the flash memory Do you want to download firmware (Y/N) [N]? 4 Enter y. The PathBuilder S330/S310 unit assumes that an Xmodem download is to be done and looks for that protocol over the serial port. Once the unit has erased the ﬂash memory, a message on the screen indicates that the unit is ready to...
Page 92: Updating The Flash File System
[8] Update Flash File System option, as described above, immediately after you make major conﬁguration changes. Resetting the Interface The PathBuilder S330/S310 software allows you to reset only the MCPU interface Card card and the Voice Compression module (VCM) card. Resetting the MCPU reboots the system.
Page 93: Using The Conﬁguration Management Menu
Figure 50 Conﬁguration Management Menu Manage cards—View shelf conﬁguration information and conﬁgure the PathBuilder S330/S310 CPU, CTX, ports, CBR module, and Voice Compression module. Manage circuits—List, add, modify, and delete virtual circuits. Manage the bridge—Set the bridge aging timer and conﬁgure the bridge.
Page 94: Using The List Card Menu
2 Select [1] MCPU to display the MCPU Conﬁguration menu, shown in Figure 54. From the MCPU Card menu, you access the submenus and screens from which you view conﬁguration information and conﬁgure shapers, as described in the following subsections. S330/S310 M UILDER ODULES ORTS...
Page 95: Viewing Mcpu Conﬁguration Information
Serial number Status (In Service or Out of Service) Conﬁguring MCPU The PathBuilder S330/S310 supports three MCPU shapers parameters: Shapers Peak Cell Rate (PCR)—The maximum rate that can be passed. Sustained Cell Rate (SCR)—The maximum average rate that a bursty, on-off trafﬁc source can send;...
Page 96 (cps) based on the value you enter. To set a new Maximum Burst Size shaper, enter the new value in the cells column. The system automatically calculates the bits based on the value you enter. S330/S310 M ODULES ORTS PPLICATIONS...
Page 97: Conﬁguring The Ctx
From the CTX menu, you access the submenus and screens from which you perform buffer and shaper conﬁguration, as described in the following subsections. Conﬁguring CTX The PathBuilder S330/S310 supports ten peak rate shapers. The shapers are Shapers separated into ten virtual queue-trunks: CAUTION: The default conﬁguration is optimized for performance.
Page 98: Conﬁguring Ctx Buffers
5 Enter the desired shaper value. Conﬁguring CTX Buffers The CTX is an output-buffered switch, with a 64K cell buffer capacity. The software sets up a default conﬁguration, but you can change it if you want. For example, you should make the queue (buffer) used for your router trafﬁc as large as possible.
Page 99 Figure 56 CTX Buffers Menu 4 Select the number corresponding to the queue for which you want to change the buffer size. The CTX Queue Buffer Conﬁguration menu, shown in Figure 57, appears. This menu lists the current buffer conﬁguration for the selected queue and provides options that allow you to change the buffer size and set congestion thresholds.
Page 100: Setting Congestion Thresholds
Set the Congestion On level to allow some hysteresis in the operation. Conﬁguring Ports The PathBuilder S330/S310 ports each have an administrative and an operational status. To set up a virtual circuit, you must ﬁrst set the administrative status of the port which will carry the circuit online to In Service.
Page 101: Conﬁguring The T1/E1 Interface
Conﬁguring the T1/E1 Conﬁguring the T1/E1 interface involves the following tasks: Interface The PathBuilder S310 has only one T1/E1 port and does not support IMA groups. Conﬁguring the T1/E1 To conﬁgure the individual T1/E1 ports, follow these steps: Ports 1 From the Conﬁguration Management menu, select [1] Manage Card to display the List Card menu, shown earlier in Figure 54.
Page 102 T1/E1 port: Application—The application: CSU—straight T1, long haul (up to 2,000 feet) DSX—short haul T1 (up to 655 feet) S330/S310 M ODULES ORTS PPLICATIONS...
Page 103: Activation/Deactivation Bit Error Rates
LBO (T1 only)—Line Build Out. The setting for the transmit signal level: 0, 7.5, 15, or 22 db. The LBO compensates for the distance between the card and the CSU/repeater. It is a setting for the transmit signal level. Framing—The type of frame organization conﬁgured for the T1/E1 port interface: D4 or ESF for T1.
Page 104: Conﬁguring Uni And Ima Groups
You can map two to four T1/E1 ports into an IMA group, thereby creating a IMA Groups logical, inverse-multiplexed, high-speed link. The PathBuilder S330 also supports UNI groups. The PathBuilder S310 features a single T1/E1 port and does not support IMA or UNI groups.
Page 105 Figure 61 Group Menu 4 Select [2] Add Group to display the Add Group menu, shown in Figure 62. Figure 62 Add Group Menu (Selecting Group Type) 5 Select [1] UNI. The Add Group menu appears as shown in Figure 63. Configuring the T1/E1 Interface...
Page 106: Adding Ima Groups
2 From the List Card menu, select [3] DS1 UNI to open the T1 (DS1) UNI or E1 UNI Conﬁguration menu, shown earlier in Figure 58. 3 From the T1 (DS1) UNI or E1 UNI Conﬁguration menu, select [3] Group Conﬁguration to display the Group menu, shown in Figure 64. S330/S310 M ODULES ORTS PPLICATIONS...
Page 107 Figure 64 Group Menu 4 Select [2] Add Group to display the Add Group menu, shown in Figure 65. Figure 65 Add Group Menu (Selecting Group Type) 5 Select [2] IMA. The Add Group menu appears as shown in Figure 66. Configuring the T1/E1 Interface...
Page 108 Admin Status—The administrative status of the group: In Service or Out of Service. 9 Select [11] Previous Menu. 10 If desired, repeat steps 5-8 to set up another IMA group. S330/S310 M ODULES ORTS PPLICATIONS...
Page 109: Viewing And Modifying Ima And Uni Groups
Viewing and Modifying IMA and UNI Groups Once you have added a group, you use the List/Modify Group menu to view and modify group conﬁguration parameters. To view and/or modify an existing group, follow these steps: 1 From the Group menu, shown in Figure 61, select [1] List/Modify Group to open the List/Modify Group Selection menu.
Page 110: Viewing Ima Link Status
Figure 69 IMA Link Status Menu 4 Enter the number corresponding to the port for which you want to view IMA link status. The IMA Link Status screen for that port appears, as shown in Figure 70. S330/S310 M UILDER ODULES...
Page 111 Figure 70 IMA Link Status Screen The IMA Link Status screen lists the following information pertaining to the IMA status of an individual link in an IMA group. NE Tx State—The near-end transmit state in the interworking link state machine. Table 23 lists the possible link states.
Page 112: Viewing Ima Group Status
2 From the List Card menu, select the number corresponding to the slot in which the T1 UNI or E1 UNI card is installed to open the Group Menu. 3 Select [4] IMA Group Status to open the Group Status Selection menu, shown in Figure 71. S330/S310 M ODULES ORTS PPLICATIONS Description This is caused by LOS, AIS, OOF, or LCD.
Page 113 Configuring the T1/E1 Interface Figure 71 Group Status Selection Menu 4 Enter the number corresponding to the group for which you want to view IMA status. The IMA Group Status screen for that group appears, as shown in Figure 72. Figure 72 IMA Group Status Screen The IMA Group Status screen lists the following information pertaining to the IMA status of the group as a whole.
Page 114 0-28,728 cps for T1, M=128; 0-35,920 cps for E1, M=128. The available cell rate indicates how much bandwidth can be carried across the group. It varies, depending on how many links in the group are actually working. # Tx Conﬁgured Links—The number of conﬁgured transmit links. S330/S310 M ODULES ORTS PPLICATIONS...
Page 115: Conﬁguring The T1/ E1 Card
# Rx Conﬁgured Links—The number of conﬁgured receive links. #Tx Active links—The number of active transmit links. #Rx Active links—The number of active receive links. Conﬁguring the T1/ E1 The only type of conﬁguration you can perform on the T1/E1 UNI card is to put it Card in service or out of service.
Page 116: Conﬁguring The Oc3/Stm-1 Port
Scramble scrambles the 48 byte payload in outgoing cells in a deﬁned manner and unscrambles the payload in incoming cells. The payload scramble settings must match at the two ends of the OC3/SDH trunk. Timing Source—The timing source for the OC3/STM-1 transmit clock. S330/S310 M UILDER ODULES ORTS Loop—Conﬁgures the OC3/STM-1 port interface to use the input port Rx clock...
Page 117: Conﬁguring The Ds3/E3 Uni Module
DS3 trunk. ATM Cell Mapping—How the carrier will provision the DS3 UNI service from the carrier ATM switch: Clear (HEC) or PLCP (Physical Layer Convergence Protocol). Clear is the option preferred by both domestic and international service providers and within private ATM networks, as it gives more payload bandwidth than PLCP.
Page 118: Conﬁguring The Serial Interface
4: C HAPTER ONFIGURING Conﬁguring the Serial Conﬁguring the serial interface involves the following tasks: Interface S330/S310 M UILDER ODULES ORTS FEAC Loopback (DS3 only)—Enables or disables the system from responding to FEAC (Far-End Alarm Condition) loopback commands (loopback activate and deactivate FEAC codes) from the central ofﬁce.
Page 119: Conﬁguring The Serial Port
Conﬁguring the Serial To conﬁgure the serial port, follow these steps: Port 1 From the Conﬁguration Management menu, select [1] Manage Card to display the List Card menu, shown earlier in Figure 51. 2 From the List Card menu, select [5] SIM to display the SIM Conﬁguration Port/Card Selection menu, shown in Figure 76.
Page 120 DCE type cable. The setting for the Terminal Timing depends on the nature and speed of the device application, but the typical conﬁguration is Internal—the PathBuilder S330/S310 provides the clock for the device application. In any case, the Terminal Timing Source setting for the PathBuilder S330/S310 serial port must be the opposite of that for the device.
Page 121 Data Rate—The data rate supported by the port: 48K, 97K, 195K, 390K, 781K, 1.5M, 3.1M, or 6.2M. This parameter applies only when the attached cable is DCE type cable. It is a very important parameter, as it allows you to direct the SIM to shape particular data applications so as not to exceed the guaranteed bandwidth established by your service provider in your service contract.
Page 122: Conﬁguring The Serial Card
1 From the Conﬁguration Management menu, select [1] Manage Card to display the List Card menu, shown earlier in Figure 51. 2 From the List Card menu, select [6] ETHERNET to display the Ethernet Conﬁguration Port/Card Selection menu, shown in Figure 81. S330/S310 M UILDER ODULES ORTS Conﬁguring the Ethernet port...
Page 123: Conﬁguring The Ethernet Card
Figure 81 Ethernet Conﬁguration Port/Card Selection Menu 3 Select [1] Port 1 to display the Ethernet Port Conﬁguration menu, shown in Figure 82. This menu displays the current Ethernet port conﬁguration and provides an option that allows you to set the administrative status for the Ethernet port. Figure 82 Conﬁguring the Ethernet Port 4 Select [1] Set Admin.
Page 124: Conﬁguring The Bridge
List Forwarding Table, see “Viewing the List Forwarding Table” later in this chapter. To conﬁgure the bridge, follow these steps: 1 From the Conﬁguration Management menu, select [3] Manage Bridge to display the Manage Bridge menu, shown in Figure 84. S330/S310 M ODULES ORTS PPLICATIONS...
Page 125 Figure 84 Manage Bridge Menu 2 From the Manage Bridge menu, select [1] Bridge Conﬁguration to display the Bridge Conﬁguration menu, shown in Figure 85. The current aging timer setting is displayed below the menu title (3 minutes in the sample menu shown in the ﬁgure).
Page 126: Conﬁguring Source Protocol Filtering
Appletalk, for example, can be ﬁltered on the sending end. This is useful in restricting your local Novell network or Appletalk data trafﬁc from being transmitted on long distance ATM links, thereby saving bandwidth and providing security. S330/S310 M ODULES ORTS PPLICATIONS...
Page 127 To conﬁgure source protocol ﬁltering, follow these steps: 1 From the Bridge Conﬁguration menu, select [2] Source Protocol Filtering to display the Source Protocol Filter menu, shown in Figure 87. Figure 87 Source Protocol Filter Menu The current statuses of the source protocol ﬁlters are listed at the top of the menu. Yes indicates that packets with that protocol will be rejected.
Page 128: Conﬁguring Source Address Filtering
ATM WAN link. This type of ﬁltering is useful for preventing speciﬁc stations in a common protocol group on the Ethernet LAN from transmitting bursty and useless network data across the bridge and onto the WAN. S330/S310 M ODULES ORTS PPLICATIONS...
Page 129 To conﬁgure source address ﬁltering, follow these steps: 1 From the Bridge menu, select [3] Source Address Filtering to display the Source Address Filter menu, shown in Figure 89. Figure 89 Source Address Filter Menu 2 Select [2] Add Source Filter Address. The Add Source Address Filter screen appears. This screen displays the following prompt: Enter MAC Address (XX:XX:XX:XX:XX:XX or <CR>): 3 Enter the MAC address of the station from which you do not want packets to...
Page 130: Conﬁguring Destination Address Filtering
5 Select [4] Previous Menu to return to the Bridge menu. 6 Select [1] Setup to display the Bridge Setup menu, shown earlier in Figure 88. This menu allows you to enable or disable the ﬁlters you have conﬁgured. S330/S310 M ODULES ORTS...
Page 131: Viewing The List Forwarding Table
7 Select [3] Set Destination Address Filter. The following prompt appears at the bottom of the screen: Enter Destination Address Filter (1=Disable, 2=Enable) 8 Enter 2 to enable the destination address ﬁlter. Viewing the List Forwarding Table The List Forwarding Table is a current forwarding table for the bridge. To display this table, select [5] Forwarding Table from the Bridge menu.
Page 132: Constructing The Bridge Static Table
To delete an address from the table, select [3] Delete MAC Address from Bridge Static Table menu and enter the number corresponding to the address you want to delete. Then enter y at the conﬁrmation prompt to delete the selected address from the Bridge Static Table. S330/S310 M ODULES ORTS PPLICATIONS...
Page 133: Enabling And Disabling The Spanning Tree
Conﬁguring the CBR The optional CBR module features three T1/E1 CBR ports and one serial port Module (PathBuilder S330) or one T1/E1 CBR port and one serial port (PathBuilder S310). Conﬁguring the CBR module involves the following tasks: Conﬁguring the CBR To conﬁgure the CBR T1-DSX/E1 port(s), follow these steps:...
Page 134 4: C S330/S310 M HAPTER ONFIGURING UILDER ODULES ORTS PPLICATIONS Figure 93 CBR E1 Conﬁguration Menu 3 Select the option corresponding to the port you want to conﬁgure ([1] Port 1, [2] Port 2, or [3] Port 3). The CBR T1-DSX/E1Port Conﬁguration menu for the selected port appears.
Page 135 4 Set the following port conﬁguration parameters. LBO (T1-DSX only)—Line Build Out. LBO refers to the signal generation/regeneration of the distance between the PathBuilder S330/S310 and the next crossconnect of FOTs (Fiber Optic Terminal system), in feet: 1-100, 100-200, 200-300, 300-400, 400-500 or 500-600.
Page 136 Adaptive timing uses a buffer depth indicator at the receiver to adjust the line rate: the fuller the buffer, the faster the line rate; the emptier the buffer, the slower the line rate. S330/S310 M ODULES ORTS PPLICATIONS...
Page 137 DBA Bits Mask to a different value. The PathBuilder S330/S310 performance monitoring feature reports the data bytes to the cell bus on the CBR port. You can check this statistic to determine if you need to set a non-default DBA Bits Mask.
Page 138: Ds0 Trunk Conditioning
DS0 Trunk Conditioning When the PathBuilder S330 is powered up, all DS0 channels on the T1 are trunk conditioned, six DS0s at a time. This trunk conditioning readies the PBX for voice communication. It is performed using TC1 signaling bits ﬁrst and then TC2 signaling bits.
Page 139 Figure 97 Conﬁguring the CBR Serial Port 4 Set the following port conﬁguration parameters as desired: SCT Clock Source—The type of input clock service conﬁgured for the port interface. Recovered—A non-required network-wide synchronization technique used to regenerate the input service clock. Adaptive timing uses a buffer depth indicator at the receiver to adjust the line rate: the fuller the buffer, the faster the line rate;...
Page 140: Conﬁguring The Cbr Card
T1-DSX or CBR E1 Conﬁguration Selection menu appears, as shown earlier in Figure 93. 3 Select [5] Card Conﬁguration to display the CBR Card Conﬁguration menu. Figure 98 shows the CBR E1 Card Conﬁguration menu. The CBR t1-DSX Card Conﬁguration menu is the same. S330/S310 M ODULES ORTS PPLICATIONS...
Page 141: Conﬁguring The Voice Compression Module
Figure 98 CBR Card Conﬁguration Menu 4 Select [1] Set Admin Status and enter 2 to put the CBR card in service or 1 to take it out of service. Conﬁguring the Voice The optional Voice Compression module (VCM) consists of one T1/E1 interface Compression Module which you connect to a PBX trunk.
Page 142: Conﬁguring The Vcm T1/E1 Port
1 From the Main menu, select [2] Conﬁguration Management to open the Conﬁguration Management menu, shown earlier in Figure 50. 2 From the Conﬁguration Management menu, select [1] Manage Card to open the List Card menu, shown earlier in Figure 51. S330/S310 M ODULES ORTS PPLICATIONS...
Page 143 5 Set the following port conﬁguration parameters. LBO (T1-DSX only)—Line Build Out. LBO refers to the signal generation/regeneration of the distance between the PathBuilder S330/S310 and the next crossconnect of FOTs (Fiber Optic Terminal system), in feet: 1-110, 110-220, 220-330, 330-440, 440-550, 550-600 or 600+.
Page 144 Cyclic Redundancy Check (CRC) information. CRC is a framing option that checks for errors in data. It is a communication check for parity/framing and is used for performance monitoring in E1 networks. Admin Status—Administrative status: Out of Service or In Service. S330/S310 M ODULES ORTS PPLICATIONS...
Page 145: Conﬁguring The Vcm Card
When you add a virtual circuit, you make a connection from the selected port to for trafﬁc to ﬂow through the PathBuilder S330/S310 and across the ATM WAN service. Typically, the VPI and VCI numbers for one side of the circuit are assigned by the network service provider or local IS administrator—depending on whether...
Page 146: Supported Classes Of Virtual Circuits
For example, if an OC3/STM-1 multi-mode ﬁber module is installed in the Side B slot of the PathBuilder WAN Access Switch and is connected to a LAN ATM switch device, then the Rx VPI/VCI for the ATM LAN interface must match the Tx VPI/VCI for the OC3/STM-1 UNI module and vice versa.
Page 147 2 Select [2] Add Virtual Circuit. The Add Virtual Circuit screen appears as shown in Figure 104. Figure 104 Initial Add Virtual Circuit Screen 3 Enter a description for the virtual circuit you are deﬁning. We recommend that you do not use the description <366 call>. This is the default description that the system assigns to video virtual circuits when they are activated.
Page 148: Adding Pvc Virtual Circuits
To operate a circuit as a VP, set the connection type to VPC. A screen appears, listing the PathBuilder S330/S310 modules and ports by slot number and prompting you to select a slot for side A, as shown in Figure 107.
Page 149 When you have entered a setting for each parameter, the Add Virtual Screen again displays the list of PathBuilder S330/S310 modules and ports by slot number and prompts you to enter a slot number for side B of the circuit, as shown in Figure 108.
Page 150 8 Enter y to conﬁrm your conﬁguration. Figure 109 shows a completed data port VCC circuit. As shown in the ﬁgure, the following message appears at the bottom of the screen: VC has been added. Press any key to continue. S330/S310 M ODULES ORTS PPLICATIONS...
Page 151: Conﬁguring Cbr Circuits For Dba
Figure 109 Completed Data Port VCC Virtual Circuit 9 Press any key to return to the Virtual Circuit menu. Conﬁguring CBR Circuits for DBA This section provides guidelines for conﬁguring CBR circuits for various types of dynamic bandwidth allocation (DBA)—both for CAS (channel associated signaling) and CCS (common channel signaling applications).
Page 152 Set the Mode to DBA. Set the other circuit parameters as appropriate for your application. The Payload Size/Type, Onhook Detection and Signaling Type parameters are set automatically when you set the circuit Mode to DBA. S330/S310 M ODULES ORTS PPLICATIONS...
Page 153: Deﬁning Rs366 (Video) Virtual Circuit Templates
When the phone number associated with a given template is dialed, the PathBuilder S330/S310 software locates the template and uses it to create a temporary virtual circuit to which it assigns the default description <366 call>. Data for the video conference is transmitted and received over the newly-created <366 call>...
Page 154 CBR module port from which you want to build the video circuit, as shown in Figure 111. Figure 111 Selecting the CBR Module Port for Side A of a Video Virtual Circuit S330/S310 M ODULES ORTS...
Page 155 Add Virtual Circuit screen displays a list of PathBuilder S330/S310 modules that you can use for side B of the circuit template. Figure 112 shows the Add Virtual Circuit screen with side A completed for a video virtual circuit template using the CBR serial port.
Page 156 Figure 114 shows a completed video virtual circuit template. When the phone number 555-2345 is dialed, the circuit that this template deﬁnes will be activated. Figure 114 Completed RS366 (video) Virtual Circuit Template 8 Press any key to return to the Virtual Circuit menu. S330/S310 M ODULES ORTS PPLICATIONS...
Page 157: Adding Voice Compression Module Vcc Circuits
Adding Voice To conﬁgure a VPC/VCC virtual circuit to connect data ports, follow these steps: Compression Module VCC Circuits You must conﬁgure at least one VCM VCC circuit before you can conﬁgure any VCM subchannel circuits. 1 When you are prompted to select the virtual circuit type, as shown earlier in Figure 105, enter 3 to create a VCM VCC circuit.
Page 158 When you have entered a setting for each parameter, the Add Virtual Screen again displays the list of PathBuilder S330/S310 modules and ports by slot number and prompts you to enter a slot number for side B of the circuit, as shown in Figure 117.
Page 159: Adding Vcm Subchannel Circuits
Figure 118 Completed VCM VCC Virtual Circuit 7 Press any key to return to the Virtual Circuit menu. Adding VCM Subchannel To conﬁgure a VCM subchannel circuit, follow these steps: Circuits You must conﬁgure at least one VCM VCC circuit before you can conﬁgure any VCM subchannel circuits.
Page 160 Is the above information correct (y/n)? The DLCI and SCID numbers must match for the local PathBuilder S330/S310 and the remote PathBuilder S330/S310. 4 Enter y to conﬁrm your conﬁguration. shows a completed VCM subchannel circuit.
Page 161: Vcm Subchannel Virtual Circuit Example
The following example shows how you can set up a three-node VCM network by creating all required VCM VCC circuits and VCM subchannel circuits. Figure 122 illustrates this setup. Figure 122 Three-Node VCM Network and Associated Virtual Circuits S330 A to S330 B 4 subchannel circuits: DS0: 1-4 DLCI: 16...
Page 162 You need to build the following VCM VCC and subchannel circuits: At PathBuilder S330 A (S330 A): Add a virtual circuit (VC 1) between S330 A and S330 B. Add a virtual circuit (VC 2) between S330 A and S330 C.
Page 163: Virtual Circuit Parameters
CAUTION: Do not enable early packet discard for AAL1 trafﬁc. MCPU Virtual Circuit Parameters IP Address—The IP address for the PathBuilder S330/S310. Subnet Mask—The subnet mask for the PathBuilder S330/S310. T1/E1 UNI Port Virtual Circuit Parameters Receive VPI/VCI—The VPI/VCI of cells received by the T1/E1 port.
Page 164 1490 as a protocol across their ATM trunks; for example, when you have a PathBuilder S330/S310 terminating the ATM network at one end and an ATM-ready device, such as a router with an OC-3 UNI, at the other end.
Page 165 Relay device or network. For example, if the PathBuilder S330/S310 is connecting a router/FRAD over an ATM network (public or private) and at the other site a router with an ATM OC3/STM-1 UNI is...
Page 166: Ethernet Port Virtual Circuit Parameters
NLPID and LLC-SNAP encapsulation. It is used when connecting a Frame Relay device or network to a non-Frame Relay device or network. For example, if the PathBuilder S330 is connecting a router/FRAD over an ATM network (public or private) and at the other site a router with an ATM...
Page 167 CDV Buffer Size—The Cell Delay Variation buffer size: 1-24 ms. Cell delay variation refers to the spacing between cells. The PathBuilder S330/S310 provides a buffer to account for cell delay variation and thereby prevent cell loss. If the cell delay variation exceeds the size of the buffer, however, then you will lose cells. If your cell loss counts are high, try setting the cell delay variation to a higher value.
Page 168: Voice Compression Module Virtual Circuit Parameters
VPI greater than 3 for the receive VPI, indicating that for values greater than 3 for the receive VPI, the PathBuilder S330/S310 can build only VP address-translated circuits. This is relevant only for the receive VPI/VCI end of the circuit.
Page 169 Configuring Virtual Circuits Figure 125 List Virtual Circuit Summary Screen The List Virtual Circuit Summary Screen shows a summary of all virtual circuits, with a virtual circuit number (VC#) assigned to each. It displays the following information: card—Card type. s/p—Slot and port numbers (for side A and side B of the circuit) Rx/Tx—Virtual circuit information speciﬁc to the card type.
Page 170: Viewing Virtual Circuits By Port Or Group
Figure 127 Access VCs by Port/Group Selection Menu 3 Enter the number corresponding to the port or group for which you want to view virtual circuits to open the Access Virtual Circuits by Port/Group screen, shown in Figure 128. S330/S310 M ODULES ORTS PPLICATIONS...
Page 171: Modifying Existing Virtual Circuits
Figure 128 Access Virtual Circuits by Port/Group Screen The Access Virtual Circuits by Port/Group screen provides the same information as the List Virtual Circuit screen. See “Viewing Virtual Circuits for the Entire Chassis” earlier in this section for details. To view detailed information about one of the listed circuits, enter the desired VC# to open the Access Virtual Circuits by Port/Group detail screen.
Page 172: Deleting Virtual Circuits
You manage the video dial feature from the Manage Video Dial menu, shown in Figure 129. To display the Manage Video Dial menu: From the Conﬁguration Management menu, select [4] Manage Video Dial. Figure 129 Manage Video Dial Menu S330/S310 M UILDER ODULES ORTS is the number of the selected virtual circuit.
Page 173: Managing Video Dial-Up Sessions
To set up, activate, and end a video dial-up session, follow these basic steps: Sessions 1 Create virtual circuits between the appropriate PathBuilder S330/S310 units. This effectively builds a call routing table. For detailed instructions, see“Deﬁning RS366 (Video) Virtual Circuit Templates”, earlier in this chapter.
Page 174: Ending Video Dial-Up Sessions
You build the video call routing table as you create video-associated virtual circuits Routing Table between PathBuilder S330/S310 CBR modules. When you enter a number—either from a video keypad or from the Manually Connect A Site menu—to start a video dial-up session, the system checks the number you enter against the call routing table and makes a connection if it ﬁnds a match.
Page 175 Video Call Routing Table, shown in Figure 132. Each row in the video call routing table corresponds to a video-associated virtual circuit (call) between PathBuilder S330/S310 CBR modules. The table provides the following information for each entry: Index—A unique number identifying this entry in the call routing table.
Page 176 4: C S330/S310 M HAPTER ONFIGURING UILDER ODULES ORTS PPLICATIONS...
Page 177: Path
This chapter tells you how to access and manage SuperStack II PathBuilder S330 and S310 WAN access switch (PathBuilder S330/S310) system alarms, how to use available loopbacks, and how to view performance statistics for the PathBuilder S330/S310. It contains the following sections:...
Page 178: Pathbuilder S330/S310 Alarm Messages
This section lists the alarm messages, meanings of the alarm messages, and Alarm Messages troubleshooting tips for the major errors reported from each of the PathBuilder S330/S310 interfaces. It contains the following subsections: MCPU and CTX Module (System) Alarms Alarms Common to Several Interfaces...
Page 179: Mcpu And Ctx Module (System) Alarms
MCPU and CTX Module (System) Alarms Table 26 describes the Critical and Major Alarms associated with the CPU Module. Table 26 MCPU and CTX Module (System) Alarms Alarm Meaning Alarms Cleared Current alarms have been cleared by user. Card Config Failed Cannot upload configuration data to a card.
Page 180 5: P S330 D HAPTER UILDER Table 26 MCPU and CTX Module (System) Alarms (continued) Alarm Queue 1 Over Threshold Queue 2 Over Threshold Queue 3 Over Threshold SAR Initialize Failure Problem with the SAR chip on System Clock Reverted...
Page 181: Alarms Common To Several Interfaces
Alarms Common to Several Interfaces Table 27 describes major alarms common to several PathBuilder S330/S310 interfaces. Table 27 Alarms Common to Several Modules Alarm Meaning Alarm Indication An incoming alarm indication Signal(AIS) signal (AIS) indicates a LOS problem is occurring on the...
Page 182 5: P S330 D HAPTER UILDER Table 27 Alarms Common to Several Modules (continued) Alarm Loss of Signal(LOS) Network Card Loopback Network Line Loopback Out of Frame(OOF) IAGNOSTICS AND ERFORMANCE TATISTICS Meaning Cannot detect a signal at a configured port. This alarm is...
Page 183: Ds1/E1 Uni Module Alarms
DS1/E1 UNI Module Alarms Table 28 describes the alarms speciﬁc to the DS1 UNI and E1 UNI modules. ATM Forum required alarms are indicated by the notation ATM Forum (R-xxx), where xxx is the required alarm number. Table 28 DS1/E1 UNI Module Alarms Alarm Meaning AFA Link Removal...
Page 184 5: P S330 D HAPTER UILDER Table 28 DS1/E1 UNI Module Alarms (continued) Alarm BAD SCCI (3Com Patent Pending) Bad Symmetry Duplicated IMA ID Duplicated Link ID Duplicated Offset Excessive Link Delay The link has exceeded the Group [n] Abort...
Page 185 Check and repair link facilities. Verify configuration. Configure both ends to the same M value. NOTE: This alarm should not occur if both ends are PathBuilder S310, S330, S600, or S700 products. Information about far end state. Check and repair link facilities. Verify configuration.
Page 186 Make sure that the IMA frame length is set to the same value for all links. Configure the group to be symmetric. 3Com PathBuilder products do not support asymmetric bandwidth for IMA. Check configuration. Only CTC (Common Transfer Clock) is supported.
Page 187 Table 28 DS1/E1 UNI Module Alarms (continued) Alarm Meaning Port Missing ICP Two consecutive ICP cells Cells missing from the IMA frame. RFI IMA Remote Failure Indication: Far end IMA Rx networking link ATM Forum (R-121) state machines detected LOS, OOF, AIS.
Page 188: Dsx-1/E1 Cbr Module Alarms
5: P S330 D HAPTER UILDER DSX-1/E1 CBR Module Alarms Table 29 describes the alarms speciﬁc to DSX-1 and E1 CBR modules. Table 29 DSX-1/E1 CBR Module Alarms Alarm Cellbus parity E1 Loss of CAS Multiframe E1 Time Channel 16...
Page 189: Sim Alarms
Table 29 DSX-1/E1 CBR Module Alarms (continued) Transmit FIFO The cell bus is congested, and Overflow cells are backed up on the CBR. Traffic at the output side of the CBR port is being transmitted more slowly than it is being received from the cell bus.
Page 190: Working With History Alarms
All alarms and information events are captured and kept in an alarm history ﬁle in Alarms the PathBuilder S330/S310. This ﬁle can hold up to 300 events; it ﬁlls on a ﬁrst-in/ﬁrst-out basis. We recommend that you routinely view the alarm history ﬁle before events are lost.
Page 191: Using Loopbacks
The Loopback menu for the selected port appears. Figure 137 shows the Loopback menu for the OC3/STM-1 port. If you select a card type for which the PathBuilder S330/S310 does not support loopbacks, a message appears, informing you that no loopback feature is available for that card type.
Page 192: T1/E1 Uni Loopbacks
5 Enter the number corresponding to the type of loopback you want to conﬁgure. The following subsections describe the available loopbacks for each of the PathBuilder S330 interfaces. T1/E1 UNI Loopbacks The following loopbacks are available for the T1/E1 UNI interface: Network Line—Loops the T1/E1 received data back on the output side after the...
Page 193: Oc3/Stm-1 Loopbacks
OC3/STM-1 Loopbacks The following loopbacks are available for the OC3/STM-1 interface: Network LIne—Loops the OC3/STM-1 received data back on the output side after the digital data has been recovered. Local Card—Loops the transmit OC3/STM-1 output on the receive side; the transmitted data will continue to go on the output.
Page 194: E3 Loopbacks
5: P S330 D HAPTER UILDER E3 Loopbacks The E3 module supports the following loopbacks: Local Card—Loops the transmit E3output on the receive side. All cells coming from the E3 port card are looped through the backplane and back to the E3 port card.
Page 195: Setting Vcm Loopbacks
Setting VCM Loopbacks For the Voice Compression module, you can set both card/line and channel loopbacks. When you set a VCM loopback, the MCPU sends a message to the VCM card to perform a maintenance function, and the VCM replies with an acknowledgment.
Page 196 5: P S330 D HAPTER UILDER The following prompt appears: Enter Channel (1-8): 3 Enter the number of the channel for which you want to set a loopback to open the VCM Channel Loopback menu for that channel. Figure 144 shows the VCM T1-DSX Channel Loopback menu.
Page 197: Viewing Performance And Atm Statistics
Viewing Performance This section tells you how to display the following types of PathBuilder S330/S310 and ATM Statistics statistics: Viewing Card Statistics To view card statistics, follow these steps: 1 From the main menu, select [4] Performance Management to open the Performance Management Menu, shown in Figure 145.
Page 198: Viewing T1/E1 Uni Card Statistics
5: P S330 D HAPTER UILDER Figure 146 Card Statistics Menu 3 Enter the number corresponding to the card for which you want to view statistics. The following sections describe the card statistics provided for each type of card. Viewing T1/E1 UNI Card You can view T1/E1 UNI statistics for ports or for groups.
Page 199: T1/E1 Port/Link Statistics
Viewing Performance and ATM Statistics T1/E1 Port/Link Statistics This section describes the T1/E1 port/link statistics. T1/E1 Port/Link Physical Performance Statistics The T1 (DS1)/E1 UNI Physical Performance Monitoring screen displays the following statistics. You can view the statistics as current, interval, or total data. ES—The number of errored seconds (ESs) encountered by the T1/E1 interface.
Page 200: T1/E1 Group Statistics
5: P S330 D HAPTER UILDER IAGNOSTICS AND ERFORMANCE TATISTICS Rx-UUS-IMA-FE—Far end receive unusable seconds; the number of unusable seconds at the far end interworking Rx link state machine. Tx-FC—Number of near-end transmit failures. Rx-FC—Number of near-end receive failures. Tx-FC-FE—Number of far-end transmit failures.
Page 201: Viewing Oc3/Stm-1 Card Statistics
Rx ICP cell errors—The number of cells received in a port/group since the counter was cleared. Tx cell rate—Current transmitted data cells rate. Rx cell rate—Current received data cells rate. Rx ICP cell error rate—Current ICP received cell error rate. Avg.
Page 202 5: P S330 D HAPTER UILDER IAGNOSTICS AND ERFORMANCE TATISTICS OC3/STM-1 Section Performance Statistics The OC3/STM-1 Section Performance Monitoring screen displays the following statistics: ES—The number of errored seconds (ESs) encountered by the OC3/STM-1 section. SES—The number of severely-errored seconds (SESs) encountered by the OC3/STM-1 section.
Page 203: Viewing Oc3/Stm-1 Atm Statistics
UAS—The number of unavailable seconds (UASs) encountered by the OC3/STM-1 path interface. CVS—The number of coding violations (CVs) encountered by the OC3/STM-1 path interface. LOP—Indicates whether or not a Loss of Pointer (LOP) condition has been encountered by the OC3/STM-1 path interface. AIS—Indicates whether or not an Alarm Indicator Signal (AIS) condition has been encountered by the OC3/STM-1 path interface.
Page 204: Viewing Ds3 Card Statistics
5: P S330 D HAPTER UILDER Viewing DS3 Card You can view both performance statistics and ATM statistics for the DS3 UNI Statistics module. Viewing DS3 UNI Performance Statistics To view DS3 UNI performance statistics, follow these steps: 1 From the Card Statistics menu, select [9] DS3 UNI to open the DS3 UNI Performance Management menu.
Page 205: Viewing E3 Card Statistics
Cells dropped—The number of idle/unassigned cells encountered and dropped on the interface. Cells with HCS errors—The number of header check sequence (HCS) errored cells encountered on the ATM interface. Viewing E3 Card You can view both performance statistics and ATM statistics for the E3 UNI Statistics module.
Page 206: Sim Hdlc Statistics
5: P S330 D HAPTER UILDER IAGNOSTICS AND ERFORMANCE TATISTICS SIM HDLC Statistics SIM HDLC statistics include: Received Frames—The total number of received frames with good FCS at this port. Transmitted Frames—The total number of successfully-transmitted frames at this port.
Page 207: Viewing Ethernet Card Statistics
Viewing Ethernet Card Ethernet statistics are collected according to the Ethernet bridge MIB on the Statistics Ethernet port and on every ATM connection tied to this port. You can view bridge, ﬁltering, and Ethernet statistics, and you can also view ATM VC statistics for the Ethernet port.
Page 208: Spanning Tree Statistics
5: P S330 D HAPTER UILDER IAGNOSTICS AND ERFORMANCE TATISTICS Ethernet Statistics Transmitted Frames—The total number of frames transmitted at this port. Transmitted bytes—The total number of bytes transmitted at this port. Received Frames—The total number of frames received at this port.
Page 209: Viewing Cbr Module Card Statistics
Forward Delay—The amount of time in the “learning” and “listening” states; half the amount of time that must elapse between the time when it is decided that a port should become part of the Spanning Tree and the time when data trafﬁc is allowed to be forwarded to and from that port.
Page 210: Cbr Atm Statistics
5: P S330 D HAPTER UILDER IAGNOSTICS AND ERFORMANCE TATISTICS CBR ATM Statistics ATM cell statistics are cell counts since the last counter reset. On the ATM Statistics window, you can reset the counter by entering c. ATM statistics are displayed as a list rather than a table.
Page 211: Viewing Voice Compression Module Statistics
Viewing Voice You can view performance monitoring, virtual circuit, and port activity statistics for Compression Module the Voice Compression module. To view VCM statistics, follow these steps: Statistics 1 From the Card Statistics menu, shown earlier in Figure 146, enter the number corresponding to the slot in which the VCM for which you want to view statistics is installed (7 or 8) to open the VCM Card Statistics menu, shown in Figure 148.
Page 212: Voice Compression Module Vc Statistics
Viewing Virtual Circuit The PathBuilder S330/S310 provides you with circuit parameters and cell counts Statistics broken down in various ways: These statistics enable you to look at the cell loss at various points in the data ﬂow and adjust parameters—such as shaper values—accordingly.
Page 213: Viewing Virtual Circuit Statistics By Circuit
Viewing Virtual Circuit To display virtual circuit statistics by circuit, follow these steps: Statistics by Circuit 1 From the Conﬁguration Management menu, select [2] Manage Circuits to display the Virtual Circuit menu. 2 From the Virtual Circuit menu, select [5] Show Virtual Circuit Statistics to display a summary of statistics for all circuits, as shown in Figure 149.
Page 214: Viewing Virtual Circuit Statistics By Port/Group
5: P S330 D HAPTER UILDER Row 2 (left to right) To view additional information about a particular circuit, enter the desired virtual circuit number. In addition to the information displayed on the summary screen, the Virtual Circuit Statistics Detail screen displays the number of cells sent on each side of the selected circuit.
Page 215 Figure 150 Virtual Circuit Statistics by Shaper Summary Screen 4 To view statistics for a single shaper, enter the desired shaper number. As shown in Figure 151, the Virtual Statistics by Shaper detail screen lists the number of cells received, dropped, and sent on the selected shaper. Figure 151 Virtual Circuit Statistics by Shaper Detail Screen 5 To view virtual circuit statistics by circuit for the selected shaper, enter v from the Virtual Circuit Statistics by Shaper Detail screen.
Page 216: Viewing Virtual Circuit Statistics By Buffer (Queue)
5: P S330 D HAPTER UILDER 6 To view virtual circuit statistics by port/group for the selected shaper, enter p from the Virtual Circuit Statistics by Shaper Detail screen. The screen that appears displays the same information as the Show Virtual Statistics by Port/Group Summary screen—except that it lists information by port/group only for circuits on...
Page 217: Support
Information contained in this appendix is correct at time of publication. For the very latest, 3Com recommends that you access the 3Com Corporation World Wide Web site. Online Technical 3Com offers worldwide product support 24 hours a day, 7 days a week, through Services the following online systems: World Wide Web Site...
Page 218: 3Com Bulletin Board Service
Up to 14,400 bps Access by Digital Modem ISDN users can dial in to the 3Com BBS using a digital modem for fast access up to 56 Kbps. To access the 3Com BBS using ISDN, use the following number: 1 408 654 2703...
Page 219: Support From 3Com
Support from 3Com If you are unable to obtain assistance from the 3Com online technical resources or from your network supplier, 3Com offers technical telephone support services. To ﬁnd out more about your support options, please call the 3Com technical telephone support phone number at the location nearest you.
Page 220: Returning Products For Repair
ECHNICAL UPPORT Returning Products Before you send a product directly to 3Com for repair, you must ﬁrst obtain a for Repair Return Materials Authorization (RMA) number. Products sent to 3Com without RMA numbers will be returned to the sender unopened, at the sender’s expense.
Page 221: Path Builder S330/S310 Module And Application Overview
It contains the following sections: Management CPU The management CPU provides an intelligent user interface in addition to the other built-in interfaces available on the PathBuilder S330/S310. It also monitors and controls the activity on the shelf. These functions include: CTX Switch The CTX switch interfaces to all ATM busses in the system.
Page 222: Ctx Output Queues And Memory Partition
Counters for cells received and cells dropped are also updated, depending on the operation. CTX Output Queues and The CTX is an output buffered switch, with a bus capacity of 400Mbits total. It can Memory Partition store 64K cells. The CTX terminates three Utopia buses, each capable of terminating an OC3/STM-1 payload.
Page 223: Setting Up A Virtual Circuit
To get a practical feel for the queue size conﬁguration, consider an example in which the PathBuilder S330 is conﬁgured on the trunk side with a single group of 4 x T1/E1. The other three groups on the trunk are not used. In this case, all the cells coming from the high-speed OC3/STM-1 are going to end up in the T1/E1 buffers.
Page 224: Vpi And Vci Ranges
B: P S330/S310 M PPENDIX UILDER VPI and VCI Ranges As explained earlier in this chapter, address translation is performed in the CTX. For VP connections, the full 8 bits of the VPI is looked up, so up to 256 VP connections are supported per port.
Page 225: Oc3/Stm-1 Port
8 KHz clock for all other modules and interfaces. OC3/STM-1 Port The OC3/STM-1 port supports either a multi-mode ﬁber interface—used mostly for local workgroup switch connection—or a single-mode ﬁber interface—used for intermediate range operation (up to 15 kilometers). The PathBuilder S310 does not include an OC3/STM-1 port.
Page 226: Serial Interface
ATM interfaces are reassembled into frames and passed to the HDLC serial interfaces. The PathBuilder S330/S310 uses a RISC processor to perform the lookup and interworking functions between frame and ATM services. It also performs the LMI functions and collects alarms and statistics.
Page 227: Atm Dxi Mode
When connecting the PathBuilder S330/S310 to an ATM network, verify that the PVC mapping for in and out ports is deﬁned for proper operation. (See Figure 153.) Figure 153 PathBuilder S330/S310 to ATM PVC PathBuilder S330/S310 Frame VP 0 VC 50 DLCI 50 It is also important to select the proper trafﬁc contract from the ATM...
Page 228 B: P S330/S310 M PPENDIX UILDER DXI protocol deﬁnes an open interface between the router and the Data Service Unit. The Data Service Unit off-loads cell encapsulation services from the Brouter. This will allow your current brouter to support ATM, simply by supporting V.35 and High-level Data Link Control (HDLC).
Page 229 DXI Mode 1A is designed to allow legacy routers to utilize frame-based transmission to transmit an ATM network to the DXI Mode 1A device (PathBuilder S330/S310 serial interface), which then will perform SAR and AAL5 mapping to an ATM PVC. It provides simple and efﬁcient encapsulation of your service data unit and supports AAL5 transit encapsulation.
Page 230 Figure 159 DXI Applications V.35/RS-449/RS-530/X.21/RS-366 When the PathBuilder S330/S310 receives a DXI Frame from the DXI DTE or an ATM CPCS protocol data unit (PDU) from the ATM network, it translates from frames into ATM CPCS PDUs or from ATM CPCS PDUs into frames by doing the...
Page 231: Hdlc/Sdlc Mode
Figure 160 shows HDLC/SDLC applications. You should disable NRZI on the FEP (i.e., IBM 3745). NRZI is commonly used when the FEP is connected to DSUs over a non-digital line. The PathBuilder S330 does not require NRZI to be enabled.
Page 232 FR-SSCS function required for Service Interworking. The following sections describe the details of these two interworking functions as well as the features provided by the PathBuilder S330/S310. Service Interworking Function Figure 161 shows a PathBuilder S330/S310 providing Service Interworking function between Frame Relay and ATM services.
Page 233 The PathBuilder S330/S310 sitting in the middle performs all the required translation and management functions between these two networks, implementing the stacks as indicated in Figure 162 and performing the following key functions: Translating from Q.922 Frame to ATM AAL5 PDU and from ATM AAL5 PDU to Q.922...
Page 234: Ethernet Interface
PPENDIX UILDER Ethernet Interface The PathBuilder S330/S310 Ethernet LAN modules provide multiple connections to Ethernet segments over ATM WAN. When the Ethernet interface receives data from the LAN, any packets appearing on the 10BASE-T ports are checked for packet integrity and stored in the shared memory area.
Page 235: Bridge Operation
The PathBuilder S330/S310 performs LLC-based multiplexing. Ethernet frames are bridged as per RFC1483. Frames with NLPID of 0x00 are discarded as being invalid frames. The PathBuilder S330/S310 does not support frames bigger than Ethernet maximum frame size (1518) or IEEE802.3 frame size (1492) bytes (+ framing bytes) coming off the ATM network.
Page 236: Spanning Tree
B: P S330/S310 M PPENDIX UILDER Spanning Tree Spanning Tree (IEEE 802.1d) is a technique that detects loops in a network and logically blocks the redundant paths, ensuring that only one route exists between any two LANs. It eliminates the duplication of packets and provides fault tolerance for resilient networks.
Page 237: Spanning Tree Instances
Ethernet Interface Spanning Tree Instances The Spanning Tree logic supports a maximum of 255 physical and virtual ports, thereby allowing a maximum of 254 ATM VCs. (One Ethernet port is required be set aside for other purposes.) For the purpose of Spanning Tree operation, each set of one Ethernet port and its associated ATM VCs is treated as one bridge entity.
Page 238 Ethernet packets which include its MAC address and that of workstation 2. PathBuilder S330 A groups the packets into cells and, since it does not know where workstation 2 is, broadcasts the cells on all VPI/VCIs. PathBuilder S330 B learns that workstation 1 transmits to its T1/E1 UNI port over VPI/VCI 1/33 and VPI/VCI 2/35.
Page 239 T1 (or E1/n x E1) between the two PathBuilder S330s, so cells leaving PathBuilder S330 A on VPI/VCI 1/33 arrive at PathBuilder S330 B on VPI/VCI 1/33. Also if theT1/nxT1 (or E1/n x E1) trunk were switched through a standard telephone switching system to interconnect many PathBuilder S330s, each PathBuilder S330 would have to have the same VPI/VCI designations assigned.
Page 240: Segmentation
A typical Ethernet and voice application conﬁguration involves multiple Voice Application PathBuilder S330s connected through an ATM network that could consist of Conﬁgurations simply an ATM switch or of an ATM network consisting of multiple switches. Figure 167 shows the latter conﬁguration.
Page 241 Figure 167 PathBuilder S330/S310 Application CSU #1 CSU #1 connected to CSU #4 via unstructured DS1 CBR CSU #2 connected to CSU #4 via structured DS1 CBR Circuits Set Up on The PathBuilder S330/S310 #1 END1 END2 VPI/VCI LAN1 T1/nxT1 or...
Page 242 ATM switch since they have local meaning only for every switch port. For example, at the #1 location, the carrier would provide the PathBuilder S330 four VCCs for the forward and reverse path to connect to LAN2 and LAN3 respectively.
Page 243: Cbr Module
Once packets are received from the WAN on speciﬁc PVC logical ports, their source addresses will be learned and associated with the logical port. Once you and your carrier have set up PVCs to all remote PathBuilder S330/S310 Ethernet ports, the Bridging code will do the rest.
Page 244 B: P S330/S310 M PPENDIX UILDER The T1-DSX/E1 inputs can be either ESF, SF, or no-framing using B8ZS or AMI. In accordance with the ATM Forum’s Circuit Emulation Service (CES) speciﬁcations, the received frame can be broken up into its DSO and ABCD signaling components using structured mode or tunneled through the ATM network using unstructured mode.
Page 245: Structured Ds1
Bank Channel bank converts analog to T1; putting channel on DS0 5. PathBuilder S330/S310 puts DS0 5 on virtual circuit (VP0/VC35) and passes structured CBR traffic through to the ATM network. ATM network continues to carry CBR traffic on to another ATM network or drops the traffic (on DS0 5) to a public switched telephone network.
Page 246: Ds0 Signaling And Dynamic Bandwidth Allocation
B: P S330/S310 M PPENDIX UILDER Drop-and-Insert DS0 channels can be allowed to transit the entire path, providing DS0 to DS0 connectivity between end locations. Structured DS0s can also be groomed to be combined through an ATM network, thereby allowing end-to-end DS0 switching, as shown in Figure 172.
Page 247 These frames are then followed by the ABCD bits of each active DS0. Two DS0’s ABCD bits are provided in each byte after the last DS0 group. Figure 174 shows an example of three DS0s and their ABCD bits sent in a structured encapsulation. Figure 174 Multiframe Structure for 3x64kbit/s DS1 with CAS AAL1 Pointer .
Page 248: Unstructured Ds1
(CCS) one channel is used to signal for the other channels. The PathBuilder S330/S310 software can also monitor a full 8-bit pattern on a DS0 to determine circuit activity. This is the basis for the two supported types of...
Page 249: Structured Versus Unstructured Summary
Unstructured DS1 Implement unstructured DS1 service when you want DS1 tunneling through an ATM system. DS1 tunneling allows an entire DS1 frame, including framing bits, to travel across an ATM network. See Figure 176. Figure 176 DS1 Unstructured Tunneling Unstructured Data Service Unit...
Page 250: Video Conferencing
ESF - Extended Superframe Video Conferencing The serial port of the PathBuilder S330/S310 CBR module has two types of interface: V.35 for video data and RS-366 for video dial. These interfaces are broken out from a 50-pin connector on the S330/S310 via a Y cable.
Page 251 Figure 178 illustrates point-to-point video conferencing between three PathBuilder S330 switches (#1111, #2222, and #3333). Table 33, Table 34, and Table 35 list possible routing tables for the three units. Figure 178 Point-to-Point Video Conferencing Video/Audio Codec V.35/ V.35/ RS-366...
Page 252: Multi-Point Video Conferencing
In multi-point video conferencing an MCU (Multi Conference Unit) device is connected to one T1-DSX/E1 CBR port of a PathBuilder S600 or PathBuilder S330/S310 at the central site. The remote PathBuilder S330/S310 switches communicate with each other via their serial (V.35/RS-366) ports, as they do in point-to-point video conferencing.
Page 253: Voice Compression Module
To set up multi-point video conferencing, you build virtual circuits (deﬁned by transmit and receive vpi/vci combinations) between the remote units and between the remote units and the central unit. The remote units can use the same vpi/vci to communicate with the central unit (one at a time), or you can allocate different channels and set up separate virtual connections to each remote unit.
Page 254: Supported Voice Compression Features
B: P S330/S310 M PPENDIX UILDER Supported Voice The VCM supports the following features: Compression Features G.729A, G.726, and G.711 compression algorithms—You must conﬁgure the voice coding (compression) for each DS0 channel. The decompression runs in the same mode as the compression. In addition, the remote end must be set up to run the same mode as the local end—there is no auto-switching for the...
Page 255: Index
# Rx conﬁgured links # Tx conﬁgured links #Rx active links #Tx active links (DFA) VCI (DFA) VCI range (DFA) VPI Numbers 3Com bulletin board service (3Com BBS) 3Com URL 3ComFacts 56K/64K mode AAL5 pad AC or DC Power, connecting activation min.
Page 256 NDEX system clock system information 75, 76 T1/E1 card T1/E1 ports 89, 90 T1/E1 UNI interface time and date trap clients UNI groups VCM card VCM channels VCM T1/E1 ports viewing RS-232 port settings viewing shelf information virtual circuits voice compression module VT100 Conﬁguration Management (Main menu option)
Page 257 deletion of Group 1 when DS3/E3 module installed 57, 92 modifying selecting type (IMA or UNI) 94, 96 HDLC/SDLC applications HDLC/SDLC mode Hello Time I/O Cabling, connecting icons, notice idle timer See also inverse multiplexing. group queues IMA group status, viewing IMA groups adding conﬁguring...
Page 258 NDEX PathBuilder 330/310 external connections integrated application port conﬁguration receiving and inspecting PathBuilder S310 upgrading to PathBuilder S330 PathBuilder S330/S310 applications key beneﬁts overview PathBuilder S330/S310. See also PathBuilder S330/S310. Payload payload size peciﬁcations Performance Management (Main menu option) Performance Management menu...
Page 259 DS1 unstructured service (DS1) unstructured tunneling upgrades, from PathBuilder S310 to PathBuilder S330 V.35 interface speed VC and VP address translation VC statistics VCI ranges VCM Conﬁguration menu VCM Port Conﬁguration menu VCM See voice compression module version number, ﬁrmware...
Page 260 NDEX...
Page 261 January 1, 2000, and Customer notifies 3Com before the later of April 1, 2000, or ninety (90) days after purchase of the product from 3Com or its authorized reseller, 3Com shall, at its...
Page 262 ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, AND LIMITS ITS LIABILITY TO REPAIR, REPLACEMENT, OR REFUND OF THE PURCHASE PRICE PAID, AT 3COM’S OPTION. THIS DISCLAIMER OF LIABILITY FOR DAMAGES WILL NOT BE AFFECTED IF ANY REMEDY PROVIDED HEREIN SHALL FAIL OF ITS ESSENTIAL PURPOSE.

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3Com SuperStack II PathBuilder S330 Reference Manual

Warning Information

Supplementary Regulatory Information

About

System Description

Installation

Getting Started

Configuring Path Builder S330/S310 Modules , Ports , and Applications

Path

Path Builder S330/S310 Module and Application Overview

Index

Quick Links

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Summary of Contents for 3Com SuperStack II PathBuilder S330