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Trademarks: Ethernet is a trademark of Digital Equipment Corporation, Intel Cor- poration, and Xerox Corporation. ExpertISDN (patent number 5,715,241) is a trademark of ADTRAN, Inc. Macintosh is a registered trademark of Apple Computer, Inc. Novell, NetWare, and Internetwork Packet Exchange (IPX) are regis- tered trademarks of Novell, Inc.
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Service Type Digital Facility Service Order Network Interface Code Code Jacks ISDN 021S5 6.0F RJ-49C To ADTRAN service personnel: For continued protection against risk of fire, replace F1 with the same type and rating of fuse only: .2A, 250...
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4. Consult the dealer or an experienced radio/TV technician for help. Change or modifications to this unit not expressly ap- proved by ADTRAN will void the user’s authority to operate the equipment and may violate FCC regula- tions, in which case ADTRAN is not liable.
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ADTRAN YEAR 2000 (Y2K) READINESS DISCLOSURE ADTRAN has established a Year 2000 program to ensure that our products and operations will correctly function in the new millen- nium. ADTRAN warrants that all products meet Year 2000 specifica- tions regardless of model or revision. Information about ADTRAN’s...
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CANADIAN EMISSIONS REQUIREMENTS This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as set out in the interference- causing equipment standard entitled "Digital Apparatus," ICES-003 of the Department of Communications. Cet appareil nuerique respecte les limites de bruits radioelectriques applicables aux appareils numeriques de Class B prescrites dans la norme sur le materiel brouilleur: "Appareils Numeriques,"...
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The Load Number (LN) assigned to each terminal device denotes the percentage of the total load to be connected to a telephone loop which is used by the device, to prevent overloading. The termination on a loop may consist of any combination of devices subject only to the re- quirement that the total of the Load Numbers of all devices does not exceed 100.
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IMPORTANT SAFETY INSTRUCTIONS When using your telephone equipment, basic safety precautions should always be followed to reduce the risk of fire, electric shock and injury to persons. The precautions are listed below. 1. Do not use this product near water (for example, near a bath tub, wash bowl, kitchen sink or laundry tub, in a wet basement or near a swimming pool).
Connect the ISDN line to the RJ-45 jack labeled ISDN on the rear panel. When the PWR LED remains solid, the Express L128T S/T is ready for calling (see note below). If using POTS phones with the Express L128T S/T, connect the POTS telephones to the POTS ports.
Internet Access using Network Address Translation (NAT) Connect the 10BaseT cable from the PC’s network card to the Express L128T S/T. Select TO NIC on the Express L128T S/T back panel. Go to the Configuration/Connection List menu, and then press the right arrow key to place the cursor on the Num column.
MULTIPROTOCOL ROUTING BETWEEN TWO LANS Remote/Home Office Accessing the Corporate The following steps can be used to set up the Express L128T S/T on a remote LAN to access a corporate or central LAN using demand dial and dynamic bandwidth management.
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11. Enter the IP address and Netmask parameters of the access server at the remote site. This creates a static route to the access server’s network which is entered into the Express L128T S/T’s IP route table. 12. Move the cursor over the RIP menu. Check with the network administrator for the type of routing protocol used.
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T’s IP address should be the computer’s default gateway. When the computer which is attached to the local LAN attempts to ac- cess a host on the access server, the Express L128T S/T will dial the number provided in the Connection List profile. The Express L128T S/T will provide one of two B-channels based on traffic demand and POTS port usage.
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Advanced users can use the Express L128T S/T’s Probe feature to periodically dial the access server to obtain the route and server information, thereby removing the need to manually dial the first time. Quick Start-6 Express L128T S/T User Manual 61202070L3-20...
The Express L128T S/T has two plain old tele- phone service (POTS) connectors used for voice/modem applications. See Figure 1-1 on page 1-2 for an illustration of the Express L128T S/T. The 10BaseT connector operates at 10 megabits per second half duplex and accepts standard Ethernet packets encapsulated using IEEE 802.3...
Chapter 1. Understanding ISDN and the Express L128T S/T Figure 1-1. Express L128T S/T Applications Single User to Corporate LAN • Telecommuter/Home Office Access to the corporate LAN • Single device access • User Datagram Protocol (UDP) broadcasts are “relayed” to corporate LAN.
Chapter 1. Understanding ISDN and the Express L128T S/T Single User IP to Internet Service Provider (ISP) using Network Address Translation (NAT) • Provides high speed home access to the Internet • NAT provides translation from user assigned IP addresses to an ISP assigned IP address.
Chapter 1. Understanding ISDN and the Express L128T S/T Multiple Users to Internet Service Provider (ISP) using NAT • Provides high speed home access to the Internet • NAT provides translation from user assigned IP addresses to an ISP assigned IP address.
Chapter 1. Understanding ISDN and the Express L128T S/T Small Office - Home Office (SOHO) to Corporate LAN • Connects the small office or home office to the corporate LAN • Routes IP and Internet Packet Exchange (IPX) traffic from multiple devices to the corporate LAN •...
Chapter 1. Understanding ISDN and the Express L128T S/T IP Router: The Express L128T S/T can function as an IP router using the Routing Information Protocol (RIP) for dynamically advertising and learning routes among other routers. Static routes may also be entered into the routing table.
Bridging In Bridge Mode, the Express L128T S/T can communicate with two re- mote networks at a time. The destination is dialed by setting up a Connection List profile and choosing Dial on the Dial menu. See Con- figuration/Connection List on page 3-36 for instructions on setting up a Connection List profile.
IP Routing The Express L128T S/T operates as a dial-up IP router when the Con- figuration/IP/IP Router/Mode option is configured to On. The Ex- press L128T S/T uses an IP unnumbered WAN interface; the IP address and mask assigned to the unit’s LAN interface apply to all...
Connection List profile. Concurrent Routing and Bridging The Express L128T S/T can route IP and IPX as well as bridge non-IP/ IPX packets simultaneously. The Connection List profile will by de- fault negotiate PPP network protocols to support the transmission and reception of IP, IPX, and Bridge packets.
Network Address Translation Mode NAT is a special mode of operation in which the Express L128T S/T obtains a dynamically assigned IP address from the peer router (typi- cally an Internet Service Provider). This allows a network of comput-...
Chapter 1. Understanding ISDN and the Express L128T S/T Front Panel Figure 1-6 on page 1-11 shows the front panel of the Express L128T S/T. The indicators are divided into LAN, WAN, and Test functions. LAN Indicators TX/RX Flashes green when transmitting data onto the 10BaseT connector.
Chapter 1. Understanding ISDN and the Express L128T S/T Rear Panel The Express L128T S/T has one RJ-45 jack, labeled ISDN, on the rear panel for network connection (see Figure 1-7). There are two sets of switches on the back panel. The TO HUB/TO NIC switch allows the Express L128T S/T to connect directly to a Network Interface Card (NIC) or a HUB without the need for special cabling.
IP addresses. This may re- sult in a much higher cost to the user. The Express L128T S/T permits the user to assign any IP address to the unit and computers. Operations on the network can occur normal- ly.
VT 100 terminal or personal computer running a termi- nal emulation program, or via the LAN using a Telnet client program. To use the Telnet interface, the Express L128T S/T must first have an IP address programmed into it via the maintenance port. The factory default is 10.0.0.1.
ADTRAN Repair and Return de- partment. ISDN NETWORK CONNECTION The Express L128T S/T supports either dial or leased operation. A single RJ-45 modular jack labeled ISDN on the rear panel provides connection to either network service.
Chapter 2. Installation TELEPHONE CONNECTION Basic Telephone Service The Express L128T S/T supports an analog DTMF telephone type (AT&T 2500) with the POTS interface. Two telephones or other analog devices (like a fax machine or modem) plug into either RJ-11 jack (la- beled with drawings of telephones) on the rear of the unit.
Hanging up will terminate both calls. Customer Premises Wiring Customer premises wiring requirements for the Express L128T S/T vary depending on the application and existing wiring. It may be sim- pler for the ISDN provider to deliver another line to your location.
10-Base-T Phone S/T Yellow Telephone Green Company Black Figure 2-1. Wiring Scheme 1 Use existing analog telephone equipment, but replace single analog telephone service with ISDN service. The S/T interface requires a 4-wire connection. Express L128T S/T User Manual 61202070L3-20...
W A R N I N G Ensure other yellow and black wire functions are removed before using this wiring scheme. Figure 2-2. Wiring Scheme 2 Retain single analog telephone service and add ISDN service. 61202070L3-20 Express L128T S/T User Manual...
The Express L128T S/T uses a multilevel menu structure containing both menu items and data fields. All menu operations and data dis- play in the terminal menu window. The Express L128T S/T is shipped in the Factory Default configuration. Connect any VT 100 or VT 220 type terminal emulator to the maintenance port with a straight- through RS-232 cable.
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Right Pane Menu Path Lists available submenus. Additional submenus Describes the current position in available through this pane are indicated by the the terminal menu structure. [+] and [DATA] symbols. Left Pane Lists available menus. Mode Describes current op- erating mode. System Time Navigation Help Displays the current...
List. See the section Dial Menu on page 3-64 for more details. Status The Status menu provides options to review and monitor the status of the Express L128T S/T system. See the section Status Menu on page 3- 66 for detailed information on the available options. Test The Test menu can be used for performing diagnostic testing of the Ex- press L128T S/T.
Menus that display [+] or [DATA] indicate that more items are avail- able when selected. Activation Field <+> Menus that display <+> indicate that an action is to be taken, such as activating a test. Express L128T S/T User Manual 61202070L3-20...
Tab and Moves between the left and right panes. Shift+Tab Moves to the top of a screen. Moves to the bottom of a screen. Backspace Ascends one menu level. 61202070L3-20 Express L128T S/T User Manual...
Connection List by pressing I while the cursor is over the index number. Deletes a list item. For example, delete an item from the Connection List by pressing D while the index number is active. Express L128T S/T User Manual 61202070L3-20...
Access all parameters including passwords Access all parameters except passwords Access all parameters except passwords and authentication methods Access all parameters except passwords, authentication methods, and ISDN parameters Access only test and status menus Access status menus only 61202070L3-20 Express L128T S/T User Manual...
You can enter up to 31 alpha-numeric characters in this field, including spaces and special characters (such as an under bar). The system name is also used for PPP authentication and IPX service name. Express L128T S/T User Manual 61202070L3-20...
Provides a user configurable text string for the contact name. This field can contain a name, phone number, or e-mail address of a person responsible for the Express L128T S/T. You can enter up to 31 alpha- numeric characters in this field, including spaces and special charac- ters (such as an under bar).
(for example, 09-30-1998). Configuration/WAN The WAN menu is used to set up the ISDN and POTS parameters for the Express L128T S/T. Figure 3-3 shows the WAN menu. Figure 3-3. Configuration/WAN Screen WAN/ISDN Write security: 2; Read security: 5 Selects the mode the ISDN line is in.
POTS/POTS Assignment Write security: 2; Read security: 5 The Express L128T S/T can assign the POTS interface either POTS1 to LDN 1 and POTS2 to LDN 2 (def), or POTS2 to LDN 1 and POTS1 to LDN 2 . Once assigned, all incoming and outgoing calls on a particular port are placed to/from the assigned number.
This address must be unique within the network. Factory de- fault is 10.0.0.1. IP/Subnet Mask Write security: 2; Read security: 5 The IP network mask to be applied to the Express L128T S/T’s Ether- net port is set here. Factory default is 255.255.255.0. 61202070L3-20 Express L128T S/T User Manual...
IP/Default Gateway Write security: 3; Read security: 5 The default gateway is used by the Express L128T S/T for sending IP packets whose destination address is not found in the route table. If this address is all zeros, then the first WAN connection becomes the default gateway.
IP Router/Mode Write security: 3; Read security: 5 When this option is set to On (def), the Express L128T S/T will adver- tise and listen to routes from other IP routers. If Off, the route table is still used but only static routes are used for routing IP packets and only the Ethernet port is used.
RIP/V2 Secret Write security: 0; Read security: 0 This is a text string used for authenticating advertised routes. IP/NAT The Network Address Translation general parameters are set up un- der this menu. 3-16 Express L128T S/T User Manual 61202070L3-20...
NAT/DHCP Mode Write security: 3; Read security: 5 When this option is set to On, the Express L128T S/T acts as a DHCP server and will dynamically assign IP, network mask, default gate- way, and DNS addresses to any device which transmits a broadcast DHCP request.
UDP relay agent. UDP Relay/Mode Write security: 3; Read security: 5 When this option is set to On (def), the Express L128T S/T will act as a relay agent. 3-18 Express L128T S/T User Manual...
ARP request will then correctly assume that it can reach the requested IP address by sending packets to the physical address that was returned to it. This technique effectively hides the 61202070L3-20 Express L128T S/T User Manual 3-19...
Ethernet port and the route is not the default route, the Ex- press L128T S/T will answer the request with its own hardware ad- dress. If set to No, the Express L128T S/T will only respond to ARP requests received for its own IP address.
IPX/Frame Type Write security: 2; Read security: 5 The Express L128T S/T supports all four defined IPX frame types. The possible frame types are: Ether Type II (def), Ether 802.3 (Raw), Ether 802.2, or Ether SNAP (802.2 SNAP). Only one frame type can be used at one time.
Chapter 3. Terminal Menu Operation IPX/Seed Status Write security: 2; Read security: 5 The seed status defines what the Express L128T S/T is to do with the network information on the selected frame type during startup. There are three possible seeding selections specified:...
IPX packets are not bridged. Also, the WAN IP Bridge and WAN IPX Bridge menus allow the WAN connection to bridge packets to the Express L128T S/T but get routed as soon as they arrive at the unit. Figure 3-6 shows the Bridge menu.
Chapter 3. Terminal Menu Operation Bridge/Mode Write security: 2; Read security: 5 When this option is set to On (def), the Express L128T S/T bridge function is enabled. Setting it to Off disables all bridge functionality. Bridge/WAN IP Bridge When IP routing is active, the Express L128T S/T allows another WAN device to bridge IP packets to it using PPP BCP.
Chapter 3. Terminal Menu Operation WAN IP Bridge/Proxy ARP If this option is set to Yes (def), the Express L128T S/T will proxy ARP on the bridge IP port. See the section IP/Proxy ARP on page 3-19 for an explanation of the proxy ARP function.
Spanning Tree/Mode Write security: 2; Read security: 5 When the mode is set to On, the Express L128T S/T participates in the Spanning Tree Protocol between other bridges. When Off (def), all bridge ports remain permanently open for forwarding.
Write security: 2; Read security: 5 This is the cost of using the Ethernet port in the total cost of the path. The range is from 1 to 65535 with a default of 100 (for 10 Mbits/second). 61202070L3-20 Express L128T S/T User Manual 3-27...
WAN port 1 is considered to be the second B channel PPP BCP con- nection made. This port is only used when the first B channel (WAN Port 0) is going to an entirely different bridge. 3-28 Express L128T S/T User Manual 61202070L3-20...
This setup is exactly like WAN Port 0 above. Bridge/Address Table The Express L128T S/T automatically maintains a table of MAC ad- dresses detected and associates those addresses with the LAN, WAN0, or WAN1 port from which they were received. This menu permits the user to adjust the parameters or rules for the table as ad- dresses are learned.
None (def) No attempt is made to authenticate the PPP peer. Radius The Express L128T S/T will act as a RADIUS client and authenticate the PPP peer using the RADIUS server. The Radius server parameters must be set up properly for this to work.
Radius Server/UDP Port Write security: 1; Read security: 2 This is the UDP port that the Express L128T S/T should use when communicating with the RADIUS server. The default is 1645, which is the commonly used port.
Radius Server/Retry Count Write security: 1; Read security: 2 This is the number of times the Express L128T S/T should send a re- quest packet to the RADIUS server without a response before giving up. If the number of attempts to communicate with the primary serv- er is equal to the retry count, the secondary server (if defined) is tried.
PPP LCP negotiation and allow the PPP peer to negotiate down to CHAP or PAP. CHAP or EAP The Express L128T S/T will ask for EAP during the first PPP LCP negotiation and allow the PPP peer to negotiate down to CHAP but not PAP.
Type of comparison that is performed = means ports equal to not = means port not equal to > means port greater than < means port less than None means the source port is not compared 3-34 Express L128T S/T User Manual 61202070L3-20...
(hexadecimal format) Dest Net 32-bit destination network address Dest Mask Bits in the destination network address which are compared. (hexadecimal format) Src Socket 16-bit value which is the source socket. Range is 0-65535. 61202070L3-20 Express L128T S/T User Manual 3-35...
None - no comparison is done on IPX type Configuration/Connection List The Express L128T S/T uses the Connection List to specify the profile each user or group of users are to have when connected. Each profile or item in the Connection List has many configurable parameters giv- ing high flexibility on a per-user basis.
When set to Yes (def), this profile is used for authentication and user association of incoming calls. Setting to No is the same as deleting the item but allows the information of the profile to be saved. 61202070L3-20 Express L128T S/T User Manual 3-37...
PPP peer and for being authenticated by the PPP peer. (PPP peer refers to the WAN’s far-end device, e.g., another rout- er or bridge.) Authentication is applied between the Express L128T S/T and the PPP peer as follows: The Express L128T S/T as the authenticator: •...
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PPP peer. • If the Configuration/Security/Authentication parameter is set to Connection List or RADIUS, the Express L128T S/T will wait until the PPP peer is authenticated before authenticating itself with the PPP peer (except when CHAP or EAP is used).
Authentication/Tx Method Write security: 2; Read security: 3 This parameter specifies how the Express L128T S/T is to be authenti- cated by the PPP peer. There are four possible selections. See Security/ PPP on page 3-32 for an explanation of the three PPP standard authen- tication types.
Connection List/IP The IP menu contains the parameters for exchanging IP data with the PPP peer. Static routes can also be created from here for IP dial-on-de- mand applications. 61202070L3-20 Express L128T S/T User Manual 3-41...
Multiple stations on the Ethernet side can access the Internet simulta- neously. See the section IP/NAT on page 3-16 for more global options. Setting this option to On will cause the Express L128T S/T to perform NAT. In the Off (def) position, the unit will route across the connec- tion normally.
Route/Static Route Write security: 3; Read security: 5 When set to Yes (def), the Express L128T S/T will add the net- work defined above as an idle route in the IP routing table. When an IP packet is routed to this idle route, the Express L128T S/T will dial using this profile.
On (def). RIP/Protocol Write security: 3; Read security: 5 The Express L128T S/T performs version 1, V1 (def), or version 2, V2, of RIP on this WAN connection. RIP/Method Write security: 3; Read security: 5...
Write security: 3; Read security: 5 A non-zero value in this remote network number will allow the Ex- press L128T S/T to add a route to the PPP peer’s network to the rout- ing table. 61202070L3-20 Express L128T S/T User Manual 3-45...
This is usually referred to as being a “half-router.” However, a PPP peer which wants to assign a network address to the WAN link can do so, in which case the Express L128T S/T will go into “full-router” mode.
Type 20 packets should not be propagated across slow- er links with bandwidths of less than 1Mbps (like ISDN). However, when set to Pass (def), the Express L128T S/T will allow these packets to propagate over the WAN connection. This facilitates dial-on-de- mand applications.
RIP or SAP time period has been reached before they advertise their routes or services to the Express L128T S/T. The value is in sec- onds and ranges from 5 to 180. The default is 5 seconds and assumes that a routing update is received upon connection.
B-channel for this connection. Multilink/Fragment Write security: 3; Read security: 5 When this item is set to Yes (def), the Express L128T S/T will split outgoing packets greater than 128 bytes into two Multilink fragments and simultaneously transmit them one per B-channel.
PPP/VJ Compression Write security: 3; Read security: 5 When this item is set to On, the Express L128T S/T will perform TCP/ IP header compression known as Van Jacobson compression to the PPP peer. Normally, this is not necessary over ISDN connections and can be set to Off (def) to disable it.
64K (def) The default call type for ISDN service is Data 64 kbps. This directs the call control software to request an unrestricted 64 kbps circuit. 61202070L3-20 Express L128T S/T User Manual 3-51...
Dial Out/Connection Timeout Write security: 3; Read security: 5 This is the amount of time the Express L128T S/T waits for a call to be answered before giving up the attempt. Possible values are 15 secs (def), 30 secs, 1 min, 2 mins and 4 mins.
Chapter 3. Terminal Menu Operation Bandwidth/Mode Write security: 3; Read security: 5 When this option is set to On, the Express L128T S/T will apply its bandwidth-on-demand features for this Connection List pro- file. If set to Off, none are performed.
Samples/Samples Write security: 3; Read security: 5 This is the number of WAN data rate samples taken before a decision to change bandwidth is performed. The range is 1 (def) to 255 samples. 3-54 Express L128T S/T User Manual 61202070L3-20...
60 seconds. Connection List/Filters The Express L128T S/T can block packets in and out of a WAN port by use of the filters. These filters are set up on a per-Connection List profile basis. They are set up in two steps: 1) define the types of pack-...
The next operation to use to combine with the next filter in the list: the last filter to combination. logically AND this filter with the next filter in the list. logically OR this filter with the next filter in the list. 3-56 Express L128T S/T User Manual 61202070L3-20...
The latter is used in Bridge or IP/IPX Router mode. The idle timer is a timer in the Express L128T S/T which con- tinually increments until it reaches the idle time-out parameters value set in the Connection List, at which point the connection is hung-up.
Filters/Dem Dial Exceptions list. When not connected in Bridge mode only, causes the Express L128T S/T to dial using this Connection List profile if there is NOT a match in the Filters/Dem Dial Exceptions list.
Telnet/Server Access Write security: 2; Read security: 5 This option must be set to On (def) to access the Express L128T S/T via Telnet. Turning it Off means that access is denied. 61202070L3-20 Express L128T S/T User Manual...
Chapter 3. Terminal Menu Operation Telnet/User List Up to four users can be configured for access to the Express L128T S/ T. Each user can be assigned a privilege and time out. User List/Name Write security: 1; Read security: 3 A text string of the user name for this session.
Chapter 3. Terminal Menu Operation Management/SNMP The Express L128T S/T is an SNMP agent. It can respond to Get-Re- quests and generate traps. These two lists set up the manager, com- munities, and levels. See SNMP on page C-1 for more information on SNMP.
This is the IP address of the manager that is to receive the traps. Management/Maint Port The Express L128T S/T has an EIA-232 connector on the back of the unit. The setup for that port is under this menu. Maint Port/Password Protect Write security: 0;...
1 (def), 1.5 or 2. Configuration/Terminal Mode This is an activator which places the Express L128T S/T terminal ses- sion into a command prompt mode. All menu options are accessible during this mode. See Terminal Mode Commands on page E-1 for the command structure and command list.
Write security: 4; Read security: 5 This is an activator used for dialing the phone numbers in the profile. Place the cursor over the field and press Enter to activate the dialing function. 3-64 Express L128T S/T User Manual 61202070L3-20...
Read security: 5 This is the number of B-channels being used for this call. Dial/Number 1 Read security: 5 This read-only field is the number entered for the profile under Con- figuration/Connection List/Dial Out/Number 1. 61202070L3-20 Express L128T S/T User Manual 3-65...
This read-only field is the number entered for the profile under Con- figuration/Connection List/Dial Out/Number 2. STATUS MENU The Express L128T S/T’s Status menu contains comprehensive status and diagnostic information used in verifying configuration and iden- tifying problems. The menus are divided into protocol types and ses- sions.
Call Sessions/Session1 and Call Sessions/Session2 Read security: 5 The Express L128T S/T can support up to two active connections at one time. These two menus reflect the results of PPP negotiations, user name, time connected, idle timer, and data rates for the session.
Port is in the blocked state Status/ARP Cache Read security: 5 This lists the contents of the Express L128T S/T’s ARP table. All re- solved cache entries time out after 20 minutes. Unresolved entries time out in 3 minutes. ARP Cache/IP...
Seconds until address is removed from table Status/IP Routes Read security: 5 This lists the contents of the Express L128T S/T’s IP router table. IP Routes /IP Address Network or host destination address IP Routes /Netmask Network mask applied to the...
“zombied.” Value of 999 means route is static. Status/IPX Routes Read security: 5 This lists the contents of the Express L128T S/T’s IPX router table. IPX Routes /Network Network destination address IPX Routes /Gateway Node or Ethernet address of gateway to...
Seconds until address is removed from table. Value of 999 means route is static. Status/IPX Servers Read security: 5 This lists the contents of the Express L128T S/T’s IPX server table. IPX Servers/Type The server type IPX Servers/Name The server name...
Excessive Collisions total collisions that resulted in packet being dropped Deferred total packets deferred due to collisions Transmissions Carrier Sense total carrier sense errors encountered (no link Errors integrity) 3-72 Express L128T S/T User Manual 61202070L3-20...
ICMP timeouts received Successful fragments ICMP messages sent Bad header packets ICMP messages received Sent datagrams to upper layers ICMP specif if errors Datagrams discarded Bad protocol discards Clear Counts - clears all IP stats 61202070L3-20 Express L128T S/T User Manual 3-73...
Chapter 3. Terminal Menu Operation TEST MENU The Express L128T S/T’s Test menu contains built in tests that can be used to diagnose problems. Figure 3-12 shows the Test menu screen. Figure 3-12. Test Screen The following tests can be run:...
LOGS MENU The Logs menu contain logs displaying important information about the running condition of the Express L128T S/T. The logs can be set to capture diagnostics of error conditions only by way of a log level. The levels are divided up as follows:...
Level associated with this event (0-6). Message Text message for this event. If message is too long to fit on the line, another event appears below it continuing the message. PPP Log/Clear This clears the log when activated. 3-76 Express L128T S/T User Manual 61202070L3-20...
Level associated with this event (0-6). Message Text message for this event. If message is too long to fit on the line, another event appears below it continuing the message. Call Log/Clear This clears the log when activated. 61202070L3-20 Express L128T S/T User Manual 3-77...
Level associated with this event (0-6). Message Text message for this event. If message is too long to fit on the line, another event appears below it continuing the message. Network Log/Clear This clears the log when activated. 3-78 Express L128T S/T User Manual 61202070L3-20...
Chapter 3. Terminal Menu Operation UTILITIES MENU The Express L128T S/T has utilities embedded in it to help manage and test the network and to facilitate software upgrades. Figure 3-14 shows the Utilities menu. Figure 3-14. Utilities Screen Utilities/Ping Write security: 4; Read security: 5 The ping menu is used to send ICMP ping messages to hosts.
Control ] cancels the session. Utilities/Upgrade Menu Write security: 2; Read security: 3 The Express L128T S/T’s firmware can be upgraded using this menu. Upgrade/Transfer Method The two methods for upgrading are TFTP and XMODEM. TFTP re- quires a TFTP server running somewhere on the network. The Ex- press L128T S/T starts a TFTP client function which gets the upgrade code from the TFTP server.
Upgrade/TFTP Server Setting this to Yes allows another Express L128T S/T to upgrade its code using TFTP client. This, in effect, turns on the Express L128T S/T TFTP server function and allows its code to be “cloned.” Setting to No (def) will deny any request from TFTP clients.
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Chapter 3. Terminal Menu Operation 3-82 Express L128T S/T User Manual 61202070L3-20...
PWR LED to turn on solidly. When the Express L128T S/T has been set up and connected to a line, but the PWR LED does not remain on after a few minutes, proceed...
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Chapter 4. Troubleshooting Cycle power on the Express L128T S/T, leaving it off for a minimum of two seconds; then turn the power on for one minute to ensure the PWR LED still does not stay on. Disconnect the Express L128T S/T. From a functioning voice phone, call the local directory number(s) provided with your line.
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Chapter 4. Troubleshooting H. With the Express L128T S/T connected to the line and pow- ered up, talk to your service provider’s repair group and in- form them that your ISDN basic rate line has a physical Layer 1 problem. Ask them to check the line.
The following sequence of troubleshooting steps is usually the best method of checking the connection. If more in-depth troubleshooting is required, it may be necessary to contact ADTRAN Technical Sup- port (see inside back cover). To troubleshoot, it is usually best to verify layer 1, then layer 2, and then layer 3.
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For in- stance, if the far end has an IP address of 172.16.1.100 with a 255.255.255.0 mask, the Ethernet address of the near end rout- er should be unique and on a different network (e.g., 61202070L3-20 Express L128T S/T User Manual...
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(ETH0 or WAN0). D. Verify in the IPX SAP table that an entry to the server you are trying to reach is present and associated with the correct port (ETH0 or WAN0). Express L128T S/T User Manual 61202070L3-20...
Check with the local service provider to ensure that the line supports two data calls. The Express L128T S/T status log buffer shows the sequence of events that occurred. You need to know which piece of equipment first caused the Multilink PPP process to terminate.
Specifications Chapter 5 SPECIFICATIONS AND FEATURES This section describes the standard specifications and features incor- porated in the Express L128T S/T. Network Interface RJ-45 for ISDN Basic Rate S/T Interface or RJ-45 for leased S/T service. Ethernet Interface (LAN) Ethernet/IEEE 802.3 10BaseT.
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(.5 mm) • Supports 4 phones (16 mA loop current each) at 8 ft, 24 AWG (.5 mm) • Supports 3 phones (21 mA loop current each) at 8 ft, 24 AWG (.5 mm) Express L128T S/T User Manual 61202070L3-20...
• Relative Humidity: Up to 95% non-condensing Physical • Dimensions: 1.625" H x 9.0" W x 6.375" D • Weight: 2.5 lbs Power • 120 VAC, 60 Hz, 7.5 W typical dissipation with POTS 61202070L3-20 Express L128T S/T User Manual...
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Loop Status Messages Appendix A The Express L128T S/T displays current loop status of the ISDN on the bottom center line of the terminal screen. The following messages are defined as follows: CALL <number> The Express L128T S/T is dialing the number.
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Echo: Tx: X Rx: Y The current transmit and receive count for the PPP echo request test. Getting TEI #1 The Express L128T S/T’s ISDN layer 1 is up and is now getting the first TEI from the ISDN network. Layer 1 up The Express L128T S/T’s ISDN layer 1 is up.
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B1 AND B2 BEARER CHANNEL STATUS MESSAGES Connected at 64K call type. Audio Connected at audio call type. Dialing Dialing out. Holding Connection is on hold. Idle No call up. Speech Connected at speech call type. 61202070L3-20 Express L128T S/T User Manual...
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Appendix A. Loop Status Messages Release Call being hung up. Retriv Held call being retrieved. Ringing Incoming call. Routing Incoming call state in transition. Waiting Call is between states or waiting for switch. Express L128T S/T User Manual 61202070L3-20...
Log Messages Appendix B The Express L128T S/T Logs menu contains messages of events that occur. The definitions for some of those log messages are as follows: PPP LOG MESSAGES B-Channels bundled level 5 Both B-channels are bundled under multilink PPP going to a single PPP peer.
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Can't find user profile level 2 The Express L128T S/T could not find an appropriate user profile for an incoming call. Make sure that a profile has been entered under Configuration/Connection List or that a default profile exists. A de- fault profile is one which has the name DEFAULT in the description field.
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L128T S/T and PPP peer. IPCP <X> up level 5 IP Control Protocol port <X> has been successfully negotiated be- tween Express L128T S/T and PPP peer. IPXCP <X> down level 5 IPX Control Protocol port <X> has been dropped between Express L128T S/T and PPP peer.
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The Express L128T S/T cannot bundle more than two Multilink ses- sions at one time. No Response from peer level 2 The Express L128T S/T has dialed or answered a call and no PPP ne- gotiation packets were seen. Express L128T S/T User Manual 61202070L3-20...
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Appendix B. Log Messages PAP authen failed level 3 The PPP peer has rejected the Express L128T S/T’s username and/or password used for authenticating. Check to make sure the Configu- ration/Connection List/Authentication parameters Tx Method, Tx Username, and Tx Password are correct.
Appendix B. Log Messages Peer refused authen level 3 The PPP peer would not allow the Express L128T S/T to authenticate it using the method set in Configuration/Security/PPP. Peer refused SpanTree level 4 The PPP peer would not participate in the Spanning Tree protocol.
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An outgoing call was attempted with a badly formatted or empty phone number. Bandwidth drop level 4 The Express L128T S/T is dropping a B-channel call in order to reduce bandwidth. Bandwidth request level 4 The Express L128T S/T is dialing another B-channel in order to in- crease bandwidth.
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Call lost <number> level 5 The Express L128T S/T attemptedto retrieve a previously held call but the call was lost for unknown reasons. If no caller ID is available for the ISDN line, then <number> will be blank for incoming calls.
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ISDN switch as <cause> for a call failure. The value <num> is the diagnostic which can be helpful for diagnos- ing by the telephone company or ADTRAN technical support. The following will be reported for the <cause> value:...
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Appendix B. Log Messages Conference <number> level 5 The Express L128T S/T has conferenced the held call with the active call. If no caller ID is available for the ISDN line then <number> will be blank for incoming calls. Conference Rej <number>...
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ID is available for the ISDN line, then <number> will be blank for incoming calls. Dump call level 3 The Express L128T S/T has dropped an incoming call because it was busy with calls. FarDN=<number> level 5 This is far-end directory number for an incoming call.
Appendix B. Log Messages Hold <number> level 5 The Express L128T S/T has placed a call on hold. If no caller ID is available for the ISDN line, then <number> will be blank for incoming calls. Hold Reject <number> level 5 The Express L128T S/T attempted to put a call on hold and it was re- jected by the ISDN switch.
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Bus Error - Bad address occurred on the internal bus Kernel error - General operating system error No SBCs - Mail resources used up or lost Router stack error - Fatal error in protocol stack general panic - general error B-14 Express L128T S/T User Manual 61202070L3-20...
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POTS call can be connected. Retrieved <number> level 5 The Express L128T S/T has retrieved a previously held call. If no call- er ID is available for the ISDN line, then <number> will be blank for incoming calls.
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NN in hexadecimal. Transfer <number> level 5 The Express L128T S/T has transferred the held call with the active call. If no caller ID is available for the ISDN line, then <number> will be blank for incoming calls.
The DHCP server could not add requesting host to ARP table. Installing bad default route: ifnum=<inter> metric=<hops> gw=<ip> level 6 The Express L128T S/T did not install a default route because the <in- ter> or <hops> was zero. 61202070L3-20 Express L128T S/T User Manual...
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Appendix B. Log Messages Rejecting packet with Source Routing option - src=<srcip> dest=<destip> level 4 The Express L128T S/T has dropped a source routed IP packet due to invalid parameters. setmask: local IP iface(0), not done level 6 Debug error used in determining router stack problems.
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Telnet server could not connect to Telnet client due to error. TELNETD: accept failed level 2 Telnet server could not open TCP socket to incoming Telnet client. TELNETD: Set TCPC_LISTENQ failed level 6 Debugging message related to Telnet server function. 61202070L3-20 Express L128T S/T User Manual B-19...
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TFTP client could not get to host. TFTP client: unable to open port level 2 TFTP client function could not open a UDP port. TFTP: error rcvd - <message>" level 2 Received error with <message> from TFTP server. B-20 Express L128T S/T User Manual 61202070L3-20...
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Appendix B. Log Messages TFTP: lost communication level 2 Lost communication to TFTP client or server during transfer. TFTP server: unable to open port level 2 TFTP server function could not open a UDP port. 61202070L3-20 Express L128T S/T User Manual B-21...
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Appendix B. Log Messages B-22 Express L128T S/T User Manual 61202070L3-20...
The agent in that device interprets the incoming request, performs the requested task, and sends its response to the network manager. The network manag- 61202070L3-20 Express L128T S/T User Manual...
These messages are typically encased within informational packets and transported over the LAN or WAN. SNMP Embedded Agent The Express L128T S/T supports the following groups from MIB-II: (RFC 1213) • System Group •...
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• Set object Communities The Express L128T S/T permits up to eight communities to be de- fined. The privilege level of each community can be set. The default community is public with read-only privileges. When the IP address is all zeros, any manager of the community can access the Express L128T S/T.
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Appendix C. SNMP Express L128T S/T User Manual 61202070L3-20...
Pin 6 The switch position can be set for either TO NIC or TO HUB on the back panel of the Express L128T S/T. The rear panel is illustrated in Figure 1-7 on page 1- 12. Express L128T S/T User Manual...
Terminal Mode Commands Appendix E The Express L128T S/T supports a command line interface. All menu options are configurable and readable from the terminal mode. Addi- tional commands are also available. MENU COMMANDS Every menu item in the menu structure can be accessed through the terminal mode interface.
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Telnet user “guest” list entry 1 to “guest” dial 3 dial dials the numbers for connection list profile number 3 status ip 1 gateway returns the gateway address for IP route table entry 1 Express L128T S/T User Manual 61202070L3-20...
The text file can be edited if required. Upload of the configuration can be accomplished by sending the text file to the Express L128T S/T in terminal mode. A baud rate of 9600 is strongly recommended when uploading. As soon as the upload has been completed, type “save”...
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Appendix E. Terminal Mode Commands Express L128T S/T User Manual 61202070L3-20...
CCITT Consultative Committee on International Telephony and Te- legraphy. A body of the International Telegraph Union (ITU) which prepares recommendations, commonly referred to as international standards, to resolve technical telegraph and telephone problems. 61202070L3-20 Express L128T S/T User Manual Glossary-1...
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2- wire circuit. All long distance circuits are 4-wire. Almost all local phone lines and analog phones are 2-wire. group 4 A high-speed (56 kbps) facsimile protocol specific to ISDN. Glossary-2 Express L128T S/T User Manual 61202070L3-20...
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Includes carriers such as AT&T Communications, Satellite Business Systems, GTE Telenet, GTE Sprint, and MCI. information element The name for the data fields within an ISDN Layer 3 message. 61202070L3-20 Express L128T S/T User Manual Glossary-3...
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A diagnostic procedure where data is sent to the device being tested, and the output of the device is fed directly back to its input, looped around, and the returning data is checked against that which was sent. Glossary-4 Express L128T S/T User Manual 61202070L3-20...
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Network Termination 1. A unit that provides physical and electromagnetic termination of the U-interface 2-wire trans- mission line, converts between Layer 1 formats used at the U- and T- reference points, and performs some maintenance functions. 61202070L3-20 Express L128T S/T User Manual Glossary-5...
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Using RTMP, internet routers dynamically maintain routing tables to reflect changes in internet topology. Glossary-6 Express L128T S/T User Manual 61202070L3-20...
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24 voice conversations with each conversation being digitized at 64 kbps. With more advanced digital voice encoding techniques, it can handle more voice channels. T1 is a standard for digital transmission in North America. 61202070L3-20 Express L128T S/T User Manual Glossary-7...
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It bears a remarkable similarity to today’s T1 link, except that T1 carries 24 voice channels. In ISDN, 23B+D gives twenty-three channels and one D channel for out-of-band signalling. However, in T1, signalling is handled in-band. See ISDN. Glossary-8 Express L128T S/T User Manual 61202070L3-20...
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Routes that have been identified by the router to be deleted. They remain in the router’s route table for a specified amount of time with an infinite metric so that all other routers will learn of this router’s intention to delete them. 61202070L3-20 Express L128T S/T User Manual Glossary-9...
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Glossary Glossary-10 Express L128T S/T User Manual 61202070L3-20...
IPCP ......Internet Protocol Control Protocol IPX......Internetwork Packet Exchange L ......Integrated Injected Logic IEC ......Inter-Exchange Carrier ISDN....... Integrated Services Digital Network ISO ......International Standardization Organization ISP......Internet Service Provider 61202070L3-20 Express L128T S/T User Manual Acronyms-1...
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SPCS ......Stored Program Controlled Switching System SPID......Service Profile Identifier TCP ......Transmission Control Protocol TEI......Terminal Endpoint Identifier TFTP ....... Trivial File Transfer Protocol UDP......User Datagram Protocol WAN ....... Wide Area Network ZIP......Zone Information Protocol Acronyms-2 Express L128T S/T User Manual 61202070L3-20...
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ARP cache 3-68 bridge menu 1-10 3-23 audio 3-51 bridge table 3-69 authentication 3-30 3-38 bridge/address table 3-29 with Express L128T S/T as bridge/mode 3-24 3-47 authenticatee 3-39 bridge/spanning tree 3-26 with Express L128T S/T as bridge/WAN IP bridge 3-24 authenticator 3-38...
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3-8 dial line/area code 3-11 configuration/terminal mode dial line/LDN 1 or 2 3-11 3-63 dial line/switch protocol 3-11 configuration/WAN 3-10 dial menu 3-3 3-64 connecting to the internet 1-13 dial out 3-51 61202070L3-20 Express L128T S/T User Manual Index-2...
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5-3 idle timeout 1-7 Ethernet interface D-2 IETF 1-13 Ethernet interface (LAN) 5-1 if the Express L128T S/T does not EURO ISDN 3-11 read ready 4-1 Express L128T S/T if you are unable to connect calls overview 1-1...
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NAT/web server 3-17 PPP log 3-76 NEC 3-11 PPP log messages B-1 network address translation PPP log/active 3-76 (NAT) PPP log/clear 3-76 internet access using Quick PPP log/level 3-76 Start-2 PPP log/view 3-76 61202070L3-20 Express L128T S/T User Manual Index-5...
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3-22 RIP/direction 3-16 3-44 self test RIP/method 3-16 3-44 if self test fails 4-1 RIP/mode 3-15 3-44 SetRequest C-2 RIP/protocol 3-16 3-44 shipping damage 2-1 RIP/retain 3-45 SNMP 3-61 RIP/triggered 3-45 61202070L3-20 Express L128T S/T User Manual Index-6...
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4-1 status/IP stats 3-73 calls 4-7 status/IPX routes 3-70 if self test fails 4-1 status/IPX servers 3-71 if the Express L128T S/T does status/LAN stats 3-72 not read ready 4-1 status/WAN stats 3-72 if unable to connect calls 4-7 61202070L3-20...
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3-60 WAN stats 3-72 user list/name 3-60 WAN/ISDN 3-10 user list/password 3-60 WAN/POTS 3-12 using keyboard to navigate menu wiring 2-3 utilities menu 3-3 3-79 xmodem 3-80 utilities/exit 3-81 utilities/ping 3-79 Y2K v 61202070L3-20 Express L128T S/T User Manual Index-8...
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Technical Support (888) 4ADTRAN Repair and Return If ADTRAN Technical Support determines that a repair is needed, Technical Support will coordinate with the Customer and Product Service (CAPS) department to issue an RMA number. For information regarding equipment currently in...