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HiSpeed Fast Ethernet Switch Troubleshooting Guide Part No. US7070447-001, Rev 01...
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• Type of equipment, serial number, and software version number • A description of any commands entered and the resulting output • Whether you were trying to connect to other equipment
US7070447-001...
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Methods of Managing the Switch CLI (Command Line Interface) ...6-1 Using the Console Port ...6-1 Troubleshooting a Console Connection ...6-2 Using a Telnet Session ...6-2 Troubleshooting a Telnet Session ...6-3 Logging In ...6-3 Troubleshooting the Login Procedure ...6-3 US7070447-001 Rev 01...
Additionally, the guide allows users to gain a better understanding of the Hitachi’s HiSpeed switch functionality, features, and performance. Note: This guide is not intended to replace any of the HiSpeed User and Installation Guides.
Is the problem consistent or intermittent? Can the users ping themselves? If so, can they ping the gateway and beyond? Have you tried resetting the switch? How to Contact Tech Support For technical support, contact Hitachi’s Internetworking Solution Center: Hours: Phone: Fax:...
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Refer to dispcfg.doc for instructions on how to run the batch program. Forward the results to Hitachi’s Technical Support Team via the WEB or email.
What is the HiSpeed Switch? The HiSpeed switch is a multiprotocol, Fast Ethernet workgroup switch than can be configured for up to 32 10/100 Mbps LAN switch ports, depending on the model. The HiSpeed switch maximizes performance in existing shared media LANs by allowing up to 32 separate collision domains on a per port basis.
Provides a service port for console connection to locally or remotely configure and manage the switch Available Configurations The HiSpeed switch is available from the factory fully or partially populated. The expansion slot on the switch provides for field customization to meet the changing needs of the network.
The expansion modules can be installed in the field or at the factory prior to shipment. The HS150 switch models also have a PCI bus for the addition of an uplink module. The uplink module provides a dedicated connection to a server or network backbone.
The expansion slot is capable of accepting an additional 16 ports for a total of 32 ports per switch. Figure 2-1 shows an HS140-010 switch model with the expansion slot populated by an HS-150-010-16E (12 10BASE-T ports and four 10/100BASE-TX ports) expansion module and no uplink capability.
Table 2-2 lists the available expansion modules. Table 2-2. Module Number HS150-010-16-E HS150-100-8-E HS150-100-8-FXE US7070447-001, Rev 01 10/100 BASE-T 10/100 BASE-T HS150-100-16 base model with an HS150-100-8E expansion module installed HiSpeed switch expansion modules...
Table 2-3. Model HS150-ATM-UL HS150-FDDI-UL HS150-FR-UL Uplink modules for the HS15-010 and HS150-100 Ports Type Base Model Fiber Optic ATM LANE uplink module DAS/SAS Fiber Optic FDDI uplink module X.25 Frame Relay/X.25 uplink module Draft Level—Hitachi Confidential US7070447-001, Rev 01...
I/O devices, system buses, packet switch and uplink interfaces on the switch. The ISD software ( Hitachi anonymous FTP server, 204.48.18.63. If you are using a browser, type in the following URLs to download the files: ftp://ftp.hicam.hitachi.com/outgoing/isd ftp://ftp.hicam.hitachi.com/outgoing/isd...
Figure 3-1. Reset Button The Reset button, located on the front panel of the switch, allows you to manually recycle power and reset the switch. Pressing the Reset button initiates a warm boot of the system and generates power-on self test (POST) and diagnostics. The button is recessed into the unit to prevent accidental resets.
Reset Button The Reset button, located on the front panel of the switch, allows you to manually recycle power and reset the switch. Pressing the Reset button initiates a warm boot of the system and generates power-on self test (POST) and diagnostics. The button is recessed into the unit to prevent accidental resets.
No transmission on port Currently not supported on FX ports. Indicates good link with attached device Indicates link to attached device is intermittent. Check cabling. Indicates there is not link with attached device. Check cabling. Used by support. US7070447-001, Rev 01...
To perform any routing and network management to the switch, you must assign an IP address to a VLAN on the switch. Otherwise, the switch will only provide core switching functionality. The factory default settings on the...
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HiSpeed Switch Troubleshooting Guide Ethernet port settings: autonegotiation is ON Spanning Tree is enabled These settings provide for switching in a single broadcast domain. Draft Level—Hitachi Confidential US7070447-001, Rev 01...
The HiSpeed switch models are similar in physical makeup of ports and LEDs. This section describes the following port types, LED configurations, and connections for all models. 10BASE-TX ports 10/100BASE-TX ports 100BASE-FX ports Console connection Reset button Basic Connections For communications to take place between two devices, the transmitter of one device must connect to the receiver of the other device.
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10BASE-TX Ports The 10BASE-T port connections are provided for the 10 Mbps Ethernet segment or nodes to attach to the HiSpeed switch. The RJ-45 jacks accept standard Category 3, 4, or 5 copper unshielded twisted pair (UTP) cable connections. Pin assignments for the standard RJ-45 connector are given in Table 4-1.
Point-to-point network connections, such as DTE-to-switch ports, allow a file server to transmit frames to a switch while simultaneously receiving frames from the same switch. This two-way, non-CSMA/CD full-duplex communication allows an effective bandwidth of 200 Mbps between two devices.
Console Port The console port has a DB-9 male connector used to connect a management terminal to the switch by means of a straight-through DB-9 to DB-9 standard serial port cable. Using a terminal, you can monitor the results of startup self-diagnostics, perform manual boot configuration and SNMP agent configuration, and customize your network using the supplied menus and screens.
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Draft Level—Hitachi Confidential Cabling to view and configure the console parameters. For information on these commands, refer to the HiSpeed Switch User Guide, document number US7070424-001, that was shipped with your switch. US7070447-001, Rev 01...
Chapter 5 Fundamentals of Networking Today, there are many different types of computers and networking equipment available. These devices are expected to communicate with each other. For this reason, it is extremely important that a set of rules be established and implemented in order for networking devices to function well together.
Media Access Control (MAC) and Logical Link Control (LLC). Application Presentation Session Transport Network Data Link Physical Network Media Draft Level—Hitachi Confidential Layer 7 Layer 6 Layer 5 Layer 4 Layer 3 Layer 2 Layer 1 Doc Part Number, Version Number...
Draft Level—Hitachi Confidential Fundamentals of Networking The LLC sublayer defines the logical connection to the upper layer services based on a socket or Service Access Point (SAP). This allows two processes on the same network to maintain a “logical connection” with each other for the purpose of data exchange.
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Draft Level—Hitachi Confidential HiSpeed Switch Troubleshooting GUide Doc Part Number, Version Number...
Telnet session over a TCP/IP network SNMP using HiView’s Graphical User Interface (GUI) CLI (Command Line Interface) Hitachi employes a command line interface (CLI) application for configuring the HiSpeed switch. The CLI can be accessed from: Console Port Telnet session...
Reset the switch if it is necessary. Using a Telnet Session The switch can be accessed from a remote location by using Telnet to make a TCP connection. The Telnet command syntax depends on the type of terminal or TCP/ IP software you are using.
Logging In The HiSpeed switch is shipped from the factory with pre-installed software. By default, the switch is configured to boot from flash. After the switch has been booted, the login prompt will be displayed. Log in by entering admin, in lowercase.
HiSpeed Switch Troubleshooting GUide HiView Switch Management The HiSpeed switch can be configured using Hitachi’s HiView graphical user interface (GUI) application. HiView uses Simple Network Management Protocol (SNMP) to communicate to the SNMP agent residing on the switch. Configurations to the switch can be made easily by simply dragging and dropping icons from one window to another.
When the HiView application has been launched for the first time, the color on all Ethernet ports is black. To distinguish between different VLANs, you must assign different colors to the VLANs. To upgrade the firmware on the switch using HiView, a third party TFTP server process must be running. HiView Tips UNIX HiView can only manage one switch at a time.
Find the IMPORTS header located at the top of the MIB file. Use a double hypen (--) to comment out the fields starting from “hicamNsgConventions MODULE-IDENTITY” to Before changing any table entry values, set the stats-field Draft Level—Hitachi Confidential Doc Part Number, Version Number...
For the RMON groups to work properly, do the following: Hitachi’s vendor id must entered to recognize the switch’s MAC address. Set the device to EthernetRMON. Listed below are the steps to compile and browse Hitachi’s private MIBs with MeterWare: Launch the MeterWare program.
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After all MIBs have been added, click on “Reload Now.” Then click on “OK”. After initially clicking on “Reload Now”, an error message will Note: appear. Click on “Reload Now”. Ignore the error message and click on “Reload Now”again. MIB Compiler Draft Level—Hitachi Confidential Doc Part Number, Version Number...
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See Fig.2 below. Go to this directory : iso.org.dod.internet.mgmt . and click on ( hicam ( nsg . Figure 6-2. Viewing Hitachi’s private MIBs requires further testing. Note: Doc Part Number, Version Number Fig2. MIB Browser Methods of Managing the Switch...
HiSpeed Switch Troubleshooting GUide SNMPTalk Issues For the RMON groups to work properly, the same directory as SNMPTalk. The 6-10 Draft Level—Hitachi Confidential file needs to be loaded in the mib.rt file contains all MIB information. mib.rt Doc Part Number, Version Number...
Spanning Tree is a configuration algorithm and protocol that ensures that no data loops exist within a single broadcast domain. Figure 7-1 shows bridges 1 and 2 in a loop; in this configuration without Spanning Tree, the network is unusable US7070447-001, Rev 01 Chapter 7 Bridging Concepts...
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BPDU frame with the numerically lower port ID. VLAN 1 Bridge 1 VLAN 2 VLAN 3 3011 Using Spanning Tree to eliminate ata looping Using Spanning Tree Draft Level—Hitachi Confidential VLAN 1 Bridge 2 blocking not forwarding VLAN 2 Bridge 3 VLAN 3 3012 US7070447-001, Rev 01...
Spanning Tree on, the ports go through the following Spanning Tree states: Listening Learning Blocking or Forwarding Troubleshooting Bridging Issues PC is moved to a different port on the switch. Users can no longer Problem: ping me Solution: Wait for Spanning Tree to stabilize completely. The default STA timer is 15 seconds for the ports to go from ‘Listening’...
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PCs equipped with faster processors will boot up before STA on the Solution: switch has completely stabilized. Because the ports on the switch have not gone to ‘Forwarding’, applications on the PCs may have timed out when trying to connect to the server.
CLI Commands /vbridge/show/fwt /vbridge/show/filter/all /vbridge/show/bridge <vlan#> /vbridge/show/port <vlan#> /vbridge/config/bridge <vlan#> /vbridge/config/filter US7070447-001, Rev 01 Bridging Concepts Displays the bridge forwarding Table. Displays all static entries in the Bridge Forwarding Table. Displays the bridge parameters per VLAN. Displays the Spanning Tree port parameters per VLAN.
Virtual Router port is created and traffic is routed onto the VLAN via that Virtual Router port. Note: The HiSpeed switch is pre-configured with a default VLAN 1. In order to route between VLANs, you must either connect an external router to the switch or enable IP routing per VLAN.
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VLANs maximize the efficient use of bandwidth on any given LAN segment, since packets are forwarded only between segments as required. In addition, VLANs create smaller broadcast domains which reduce the amount of broadcast traffic across the entire network. 3009 VLANs Draft Level—Hitachi Confidential Multiple VLANs US7070447-001, Rev 01...
Verify that the gateway IP address(es) on the endstation(s) points to the IP address of the VLAN(s) it is connected to. Check the ARP table on the switch to verify if the switch is learning the endstation(s) address(es). /INET/SHOW >ARP Check the Routing table on the switch to verify that all networks are learned.
DELPORT • DIABLE • ENABLE • MODIFY • MOVPORT • REMOVE Draft Level—Hitachi Confidential VLAN entry created: Router Virtual Port id ‘33’ MAC entry with Port id ‘33’ Route entry with a directly connected VLAN Interface type US7070447-001, Rev 01...
Ethernet Ethernet is a LAN based technology with data transmission rates of 10 or 100 Mbps. CSMA/CD (Carrier Sense Multiple Access with Collision Detection) protocol dictates how Ethernet frames traverse the network. In CSMA/CD, an Ethernet station checks for the presence of a signal on the cable. If there is no signal, the station begins transmission.
NIC. Frames smaller than the minimum Ethernet frame size of 64 bytes a.k.a. ‘runts’. Presumed to be a fragment resulting from a collision. Draft Level—Hitachi Confidential 10BASE-FX (Fiber Optical Link) 1024 200 meters STAR 62.5/125 mm...
FCS errors dribble bits Ethernet Tips Ensure that both port speed and duplexity on the switch and endstations are the same. By default, autonegotiation is enabled on the switch. If the endstation’s network adapter card is not autonegotiating properly, disable autonegotiation on the switch and manually configure the port settings using the following command:.
HiSpeed Switch Troubleshooting GUide Troubleshooting Ethernet Switch is not reporting any port statistics even with traffic on my Problem: network. By default, port statistics is disabled on the switch. Solution: /ETHERNET/CONFIG >stat Note: Enabling stats may cause a slight degradation to performance on the switch.
Troubleshooting at the Network Layer IP (Internet Protocol) The HiSpeed switch supports IP (Internet Protocol), a widely used Network Layer protocol used by devices to communicate across a network. IP utilizes a 32-bit address structure to identify the network and node number. The three primary classes of IP addresses are as follows: Table 10-1.
UDP are: DNS, TFTP, SNMP. RIP (Routing Information Protocol) The HiSpeed switch uses RIP, version 1, to route IP packets across VLANs. RIP, a distance vector protocol, computes the best path to the destination based on the least number of hops.
Route Cache Forwarding vs. IP Forwarding The HiSpeed switch provides a fast data path for forwarding IP packets called Route Cache Forwarding. Only TCP/UDP traffic over IP is supported. To forward packets at a higher speed, a cache is maintained to store IP addresses and Layer 2 information.
SNMP agent configured on it. Is the port process enabled or running? Find out what the port is used for and why isn’t it available. Refer to RFC 1700 for a complete list of well-known ports. 10-4 Draft Level—Hitachi Confidential US7070447-001, Rev 01...
Draft Level—Hitachi Confidential Troubleshooting IP n external router is connected to my switch. I can ping the router Problem: interface on my network but cannot reach any networks beyond the router. Use the following solutions: Solution: Verify that the gateway IP address(es) on the endstation(s) points to the IP address of the VLAN(s) it is connected to.
On the HiSpeed switch, use the following command: /INET/SHOW >static /INET/CONFIG/ROUTE/add Cannot establish a telnet session to the switch. Problem: The HiSpeed switch uses the well known TCP port 23 for Telnet. Verify Solution: that the socket is in a ‘Listen’ state. /INET/SHOW >iconnect: CLI Commands /INET/CONFIG/ipr /INET >ping <hostname>...
One significant advantage of ATM is the ability to carry voice, video and data traffic simultaneously over a 155 megabit per second pipe. The Hitachi HiSpeed switch is an ATM edge device and provides Ethernet to ATM connections over an ATM network.
** Valid LEC values range from 0 through 31. Figure 11-2. 11-2 LES/BUS OC-3 vci 45 vci 32 vci 67 L E C Workstation LECS Native ATM device ATM LANE Draft Level—Hitachi Confidential VLAN = ELAN LES/BUS OC-3 vci 39 vci 32 L E C US7070447-001, Rev 01...
Broadcast and Unknown Server (BUS) LAN Emulation Client (LEC) The LAN Emulation Client (LEC) resides on the HiSpeed switch and acts as a proxy for devices connected to the Ethernet ports. In addition, the LEC responds to any LAN Emulation Address Resolution Protocol (LE_ARP) requests from host machines on the network.
**To route on the same Logical IP subnet (LIS) over CIP, an external router is not required. ***When configuring PVC connections through an ATM switch, ensure the bi-directional path is established per port/interface on the ATM switch. ****CIP IP addresses must be on different subnets than those existing on the HiSpeed switches.
**When configuring a PVC connection, ensure the VCI values are identical on the switches you are connecting to. *** When configuring PVC connections through an ATM switch, ensure the bi-directional path is established per port/interface on the ATM switch. ****Valid PTOP index ranges from 0 through 15.
To join a specific ELAN, an ELAN name must be defined. Ensure the same UNI signaling version is used between the ATM edge devices and the ATM switch. When manually entering the ATM address of the switch, omit the AFI prefix (Ox). Valid Trunk Indexes range from 0 through 15.
If your ATM configuration is corrupt, delete your ATM file from the CLI (rm atm.cur), reset the switch, and re-configure ATM. Signaling changes may require you to reboot the switch. Troubleshooting LANE I’ve created a LEC service but still cannot connect to the ATM...
ATM switch. /ATM/CONFIG/MODIFY >port If using SVC, verify that the ATM address of the ARP Server is correct. Also, verify the ARP Server is up and active on the switch you are connecting to. Verify the following using –...
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However, the CIP index does not need to be the same on both switches. /ATM/SHOW >cip Verify that RIP is active for CIP and verify all routes are being learned. /ATM/SHOW >cip <cip id> /INET/SHOW >route US7070447-001, Rev 01 Basic ATM Concepts 11-9...
PTOP. ‘5’ identifies the PTOP index configured on the destination ‘2’ switch. Ensure the correct PTOP index is mapped to the switch you are trying to connect to. Draft Level—Hitachi Confidential id> US7070447-001, Rev 01...
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If configuring PVC, ensure the VCI values are identical on the switches you are connecting to. Verify a PVC Pt-Pt connection is created. /ATM/SHOW >connection US7070447-001, Rev 01 Verify signaling and ILMI status should be ‘up’. /ATM/SHOW >port /ATM/SHOW/connection: OAM is up.
Correct ATM address of destination switch. The last 2 selector bytes needs to be configured as follows: Example: xxx62 ‘xxx’ denotes the ATM address defined on the switch. Do a to find out what it is. ‘vap’ is a reserved identifier for Trunking.
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Trunk ids do not need to be the same. However, valid trunk ids range from 0 through 15. /ATM/CONFIG/MODIFY >trunk <trunk id> US7070447-001, Rev 01 /ATM/SHOW/connection: OAM is up. SSCOP, and ILMI is up. (for SVC only) A Trunk SVC or PVC connection is created per Trunk instance.
The total length of the ring can extend up to 200 kilometers with nodes spaced up to 2 kilometers over multimode fiber. Figure 12-1. US7070447-001, Rev 01 Dual Ring HS 150 HS150 on an FDDI network Chapter 12 FDDI Concepts...
Station Management (SMT) unique to FDDI, detects, isolates, and recovers network faults on the ring. The HiSpeed switch participates in the ring recovery process as a function of SMT. Built-in timers are used by all stations to ensure timely transmission of data across the ring.
Attached Station) SAS and (Dual Attached Station) DAS configuration. To FDDI Network Dual Attached Concentrator Figure 12-3. Downstream FDDI Device Figure 12-4. US7070447-001, Rev 01 SAS Cabling Port A SAS cable connections Upstream FDDI Device DAS cable connections FDDI Concepts...
Table 2-1 provides information about what the LEDs mean in various states Table 12-1. LED Status Yellow Green FDDI Bridge Modes The HiSpeed switch can operate in any of the following bridging modes: Filtering Forwarding Promiscuous. The configurations can be set using the following CLI command: /FDDI/CONFIG/BRIDGE/MODE...
With FDDI Filtering, packets between FDDI-native devices are filtered at the FDDI Uplink, not at the switch’s bridging table. This method of filtering reduces the burden on the HiSpeed processor. If the FDDI ring is small and the number of native FDDI devices is limited, FDDI filtering is recommended.
Caution: It is important not to interrupt the boot up sequence during this process by either pressing the front panel Reset switch, or cycling power. Note: If the HiSpeed Switch is reset by one of these methods during either of the configuration file updates (or even possibly during the driver execution), the FLASH may become corrupted and the switch will subsequently not boot.
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There was a problem in the Hardware Type within the arp packet Solution: generated by the HS150. This problem was fixed with 1.4.4. Upgrade your switch the latest version of code. Refer to HiSpeed’s User Manual on further instructions on how to upgrade the switch. US7070447-001, Rev 01 command.
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There is currently an issue with the FDDI driver and buffer management. Solution: Engineering is actively working to resolve the problem. Please contact Hitachi’s Internetworking Solution Center for further assistance. The switch appears to hang during the boot up sequence or never Problem: reaches the login prompt.
/FDDI/SHOW/PORT>counters /FDDI/SHOW/SMT>id /FDDI/SHOW/SMT>status /FDDI/SHOW/SMT>summary /FDDI/CONFIG/BRIDGE > US7070447-001, Rev 01 Displays the FDDI MAC Neighbor address table. Checks for the status of the Ring Management state, duplicate address tests, and time values. Displays the number of tx/rx frames, error frames, copied frames, and thresholds.