Hitachi US7070447-001 Troubleshooting Manual
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Hitachi US7070447-001, US7070447-001 iii Rev 01 Table of Contents Chapter 1 Introduction Purpose of the Guide ......................................................................................................1-1 Basic Troubleshootin g Tips ............................................................................................1-1 How to Contact Tech Support .........................................................................................1-2 Chapter 2 HiSpeed Switch What is the HiSpeed Switch? .........................................................................................2-1 Basic Product Features Supported .....................................................................
US7070447-001, Rev 01 3- 1 Chapter 3 Hardware Diagnostics The power and status LEDs indicate the general operations of the HiSpeed switch. The HiSpeed switch provides transparent operation once it has been installed and configured. If you suspect that it may be malfunctioning or causing a system problem, check the status of the LEDs. Call Technical Support to report the conditi
Hitachi US7070447-001, FDDI Concepts US7070447-001, Rev 01 12-3 Draft Level—Hitachi Confidential The FDDI Uplink module provides fiber optic connectivity between switched 10/ 100 Ethernet networks and an FDDI backbone network. Cable Connections The FDDI Uplink provides two SC connector ports allowing for both a (Single Attached Station) SAS and (Dual Attached Station) DAS configuration. Figure 12-3. SAS cable connections Figure 12-4. DAS cable connections ! Caution: Must be running software version 1.4.4 or later. MMMMMBA Dual Attached Concentrator To FDDI Network SAS Cabling SC Port A B Dow
Hitachi US7070447-001, US7070447-001, Rev 01 11- 1 Chapter 11 Basic ATM Concepts Asynchronous Transfer Mode (ATM) is a connection-oriented protocol using 53 byte fixed length cells. 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. Within the physical link, each Virtual Channel Connection (VCC) is uniquely identified by VPI/VCI (Virtual Path Identifier/Virtual Channel Identifier) pairs. The VPI/VCI identifiers allows the network to associate each cell with a virtual path and channel to switch data throug
Hitachi US7070447-001, HiSpeed Switch Troubleshooting Guide 11-12 US7070447-001, Rev 01 Draft Level—Hitachi Confidential Troubleshootin g Trunkin g Problem: I’ve created a Trunking service but cannot connect to the ATM network. Solution: Use the following solutions: Verify that the Trunking service has been created, admin status is enabled, and protocol state is ‘active’. /ATM/SHOW/trunk <trunk id> /ATM/CONFIG/ENABLE/trunk <trunk id> If using SVC connections, ensure that the ATM port is configured for SVC mode and ILMI is enabled. By default, the ATM port is
Hitachi US7070447-001, HiSpeed Switch Troubleshooting Guide 8-4 US7070447-001, Rev 01 Draft Level—Hitachi Confidential VLAN Tips For each VLAN created with an IP address, an associated entry is also generated. Therefore, it is critical to verify that these entries exist. If any of the entries are missing, the system configuration may be corrupted. It is recommended to delete and re-create the VLAN.. Table 8-1 lists the VLAN entries and Table 8-2 lists useful CLI commands. Table 8-1. VLAN Entries Description: CLI command: VLAN entry created: Virtual Port Informat
Hitachi US7070447-001, ii US7070447-001 Trademarks Technical Support • Your name, address, telephone, and fax number • 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
Hitachi US7070447-001, HiSpeed Switch Troubleshooting Guide 11-4 US7070447-001, Rev 01 Draft Level—Hitachi Confidential Classical IP over ATM (CIP) Classical IP (CIP) allows devices in different IP subnets to communicate across an ATM network. If the Classical IP (CIP) interfaces are on different LIS (Logical IP subnets), and an external router is required. However, if the Classical IP (CIP) interfaces are on the same IP subnet, an external router is not required. Clients use the ATM ARP Server to obtain IP to ATM address mappings for end nodes in the Logical IP Subnets (LIS). Figure 11-3. ATM CIP Point-to-Point Brid g in g (PTOP) Point to Point Bridging (PTOP) allows devices on the sam
HiSpeed Switch US7070447-001, Rev 01 2-3 Draft Level—Hitachi Confidential Each of the HS150 and HS140 models has one expansion slot which can be populated with an expansion module that doubles the number and/or type of available ports. 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 th
Hitachi US7070447-001, US7070447-001, Rev 01 7- 1 Chapter 7 Bridging Concepts Basic Bridging Concepts A bridge operates at the Data Link Layer of the OSI model by forwarding or flooding packets based on the destination MAC addresses. A bridge normally operates in promiscuous mode and learns all packets on the network. The bridge then builds an internal Forwarding table based on the source MAC addresses. When a bridge receives a packet, it compares the destination address with addresses in the Forwarding Table with one of the following results occurring: ❒ If the destination address is on the same LAN as its source address, the bridge will discar
Cabling US7070447-001, Rev 01 4-3 Draft Level—Hitachi Confidential 10/100BASE-TX Ports The 10/100BASE-TX ports on the HiSpeed switch are standard RJ-45 connections using UTP Category 5 cabling. These ports, like the 10BASE-TX ports, are wired for MDI-X and require a crossover cable when connecting to an Ethernet hub or another switch. The 10/100 Mbps ports support autonegotiation whe
Hitachi US7070447-001, FDDI Concepts US7070447-001, Rev 01 12-9 Draft Level—Hitachi Confidential CLI Commands /FDDI/SHOW/MAC>nbraddr Displays the FDDI MAC Neighbor address table. /FDDI/SHOW/MAC>status Checks for the status of the Ring Management state, duplicate address tests, and time values. /FDDI/SHOW/MAC>stats Displays the number of tx/rx frames, error frames, copied frames, and thresholds. /FDDI/SHOW/MAC>counters Displays the timer expirations, number of tokens, ring operational states. /FDDI/SHOW/PORT>counters Reports the number of times the Link Confidence tests passed/failed. /FDDI/SHOW/PORT>status Displays the Connect
Hitachi US7070447-001, Doc Part Number, Version Number 6- 1 Chapter 6 Methods of Managing the Switch Hitachi’s HiSpeed switch can be managed using the following: ❒ Serial connection on the console port ❒ 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 Using the Console Port Connect a terminal to the HiSpeed switch using a null-modem RS-232 serial cable. A DOS/Windows or Unix workstation running in terminal emulation mode can also be used. The console port on t
Hitachi US7070447-001, HiSpeed Switch Troubleshooting GUide 6-8 Doc Part Number, Version Number Draft Level—Hitachi Confidential 2. Click on the menu bar labelled “ Tools ”, then click on “ MIB compiler …” A dialog windows will appear (see Figure 6-1). Figure 6-1. MIB Compiler 3. Click on “ Invoke MIB Compiler ”, select the private MIBs to compile. 4. From the “ Compiled MB Files ”list, select the MIBs to be added to the “ Loaded MB Files .”list. 5. After all MIBs have been added, click on “ Reload Now .” Then click on “OK”. Note: The compiler will only compile one MIB at a time. Verify that
Hitachi US7070447-001, HiSpeed Switch Troubleshooting Guide 10-4 US7070447-001, Rev 01 Draft Level—Hitachi Confidential Common ICMP Destination Unreachable Messa g es Network Unreachable This message is sent by a router indicating that it cannot reach the specified network. This may be a result of a misconfigured mask, link down, missing route, or an invalid network. 1. Is the specified destination address a valid network? 2. Is the link up from the router sending the Network Unreachable message? 3. Is the port in the router configured with the correct subnet mask? 4. Does the route exist in the routing table? Host Unreachable This message is sent by a router indicating that the destinatio
Hitachi US7070447-001, HiSpeed Switch Troubleshooting Guide 10-6 US7070447-001, Rev 01 Draft Level—Hitachi Confidential and performance issues. If using static routes on the HiSpeed switch, you must configure those routes on those directly connected switches and routers. On the HiSpeed switch, use the following command: /INET/SHOW >static /INET/CONFIG/ROUTE/add Problem: Cannot establish a telnet session to the switch. Solution: The HiSpeed switch uses the well known TCP port 23 for Telnet. Verify that the socket is in
Hitachi US7070447-001, Cabling US7070447-001, Rev 01 4-5 Draft Level—Hitachi Confidential 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.
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