Hitachi US7070447-001 manual Problem Cannot ping another Vlan over Fddi

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Draft Level—Hitachi Confidential

FDDI Concepts

Problem: I’m having a communication problem with Platelike over FDDI.

Solution: Use the following solutions:

￿Verify that you are running firmware version 1.3.28 or above. In the CLI, enter the ‘vsys’ command. If not, upgrade firmware on the switch. Refer to HiSpeed’s User Manual for further instructions on how to upgrade the switch.

￿Verify that all IP addresses, subnet masks, and gateways are set correctly on the VLANs and any attached devices.

Problem: Cannot ping another VLAN over FDDI.

Solution: Use the following solutions:

￿Verify that all IP addresses, subnet masks, and gateways are set correctly on the VLANs and any attached devices.

￿Verify that all routes are learned using ‘vir’. If not, ensure that RIP is active on all VLANs.

Problem: The FDDI port does not wrap or unwrap (go back into a ring) under high traffic loads when the cable is removed/attached.

Solution: This is a known issue and currently there is no fix is available. Resetting the switch will re-initialize the switch back into the ring.

Problem: FDDI performance is slower from FDDI through Ethernet than from Ethernet through FDDI.

Solution: There is about 15% difference in the FDDI to Ethernet performance. This is likely the result of employing ARL lookups in software, rather than hardware. There are currently no plans to improve the FDDI through Ethernet performance.

Problem: I cannot ping to some stations via FDDI.

Solution: There was a problem in the Hardware Type within the arp packet 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.

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Contents Troubleshooting Guide #&$$% Table of Contents Chapter Cabling Chapter Methods of Managing the SwitchChapter Fundamentals of Networking Chapter Bridging Concepts Chapter Troubleshooting at the MAC LayerChapter Vlan Concepts Chapter Basic ATM Concepts Chapter Troubleshooting at the Network LayerIndex Chapter Fddi ConceptsViii HS150-100-16 base model with an HS150-100-8E expansion List of FiguresViii List of Tables US7070447-001 Chapter Introduction Purpose of the Guide Basic Troubleshooting TipsHow to Contact Tech Support HIassist@hitachi.com HiSpeed Switch Troubleshooting Guide Basic Product Features Supported Chapter HiSpeed Switch What is the HiSpeed Switch?Available Configurations Total Model Mbps Uplink Upgrades To Ports TX Ports FX Ports Base model configurationsHS140/150-100 Model HS140/150-010 ModelMbps Base Model TX Ports FX Ports HiSpeed switch expansion modulesExpansion Modules Module Number MbpsUplink modules for the HS15-010 and HS150-100 UpLink ModulesModel Ports Type Base Model Observing LEDs Chapter Hardware DiagnosticsLED status Reset ButtonLEDs Module LEDsHardware Diagnostics Color State Description RJ-45 LEDsLEDs on FX ports Color Status DescriptionFactory Switch Settings HiSpeed Memory, Boot Prom, Flash ComponentsHiSpeed Switch Troubleshooting Guide Basic Connections Chapter CablingPin MDI-X Signal RJ-45 Connector pin assignments10BASE-TX Ports 100BASE-FX Ports 10/100BASE-TX PortsConsole Port Pins Signal NameConsole Port Pin Assignments Cabling HiSpeed Switch Troubleshooting Guide Chapter Fundamentals of Networking Network Media Examples of Physical Layer devices are repeaters and hubsExamples of Layer 2 devices are bridges and switches HiSpeed Switch Troubleshooting GUide CLI Command Line Interface Chapter Methods of Managing the SwitchUsing the Console Port Troubleshooting a Console Connection Using a Telnet SessionLogging Troubleshooting a Telnet SessionWindows 95/Windows NT HiView Switch ManagementHiView Tips UnixSnmpc Issues Troubleshooting HiViewExample MIB Compiler Reload NowagainFig2. MIB Browser SNMPTalk Issues How Spanning Tree Works Chapter Bridging Concepts Basic Bridging ConceptsUsing Spanning Tree Troubleshooting Bridging Issues To reduce the STA timer, type Vlan CLI CommandsHiSpeed Switch Troubleshooting Guide Chapter Vlan Concepts VLANs Default VLANs Multiple VLANsProblem Cannot ping a users on a different Vlan Troubleshooting VLANsVlan Entries Useful CLI CommandsDescription CLI command Vlan entry created Vlan TipsChapter Troubleshooting at the MAC Layer Ethernet Common Ethernet Errors Physical Media SpecificationsOversized frames Alignment errorsFCS errors Ethernet TipsTo clear the buffer queues Troubleshooting EthernetDisplays all port speeds, duplexity HiSpeed Switch Troubleshooting GUide Class Range Subnet Mask IP address classesRIP Routing Information Protocol Other IP-related ServicesRoute Cache Forwarding vs. IP Forwarding Default RouteStatic Routes vs. Dynamic Routes Network Unreachable Common Icmp Destination Unreachable MessagesTroubleshooting IP Problem Cannot establish a telnet session to the switch CLI CommandsVPI/VCI Chapter Basic ATM ConceptsLAN Emulation Lane Permanent Virtual Circuits vs Switched Virtual CircuitsLAN Emulation Client LEC Point-to-Point Bridging Ptop Classical IP over ATM CIPATM Ptop TrunkingATM Troubleshooting Tips Hitachi HiSpeed ATM SpecificationsTroubleshooting Lane Verify the following using /ATM/SHOW/connection Troubleshooting CIP11-9 Troubleshooting Ptop Verify signaling and Ilmi status should be ‘up’ Troubleshooting Trunking Verify all ATM Trunk ports are in a ‘Forwarding’ state using Displays all active ATM circuits Dual Ring Chapter Fddi ConceptsHiSpeed Fddi Uplink Fddi Uplink Module installed in an HS150SAS cable connections Cable ConnectionsLED States Fddi Bridge ModesLED Status Board Status Description Yellow Green Promiscuous Mode Fddi Troubleshooting TipsFiltering Mode Forwarding ModeVerify that physical port 34 is active using vvp Troubleshooting FddiProblem Cannot ping another Vlan over Fddi 12-8 Displays the Fddi MAC Neighbor address table 12-10 Index 71$E54 C1=5.2 ?U?B*,8

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