Hitachi US7070447-001 manual Default VLANs Multiple VLANs

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Draft Level—Hitachi Confidential

HiSpeed Switch Troubleshooting Guide

VLAN1 (Default VLAN)

 

3009

Default VLANs

Multiple VLANs

Figure 8-1. VLANs

VLANs provide some of the following benefits:

❒Reduced costs

As a company grows and reorganizes, physical moves, adds, and re-cabling are made to their network. VLANs provide a cost effective solution to network changes. Because VLANs are location independent, adds and moves are quickly accomplished without the need to rewire the physical infrastructure.

❒Better security

VLANs offer security by logically separating groups by departments, functions, etc., therefore, limiting and/or restricting user access and priviledges to specific applications and resources.

❒Efficient use of network bandwidth

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.

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US7070447-001, Rev 01

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Contents Troubleshooting Guide #&$$% Table of Contents Chapter Fundamentals of Networking Chapter Methods of Managing the SwitchChapter Cabling Chapter Vlan Concepts Chapter Troubleshooting at the MAC LayerChapter Bridging Concepts Chapter Troubleshooting at the Network Layer Chapter Basic ATM ConceptsChapter Fddi Concepts IndexViii List of Figures HS150-100-16 base model with an HS150-100-8E expansionViii List of Tables US7070447-001 Basic Troubleshooting Tips Chapter Introduction Purpose of the GuideHow to Contact Tech Support HIassist@hitachi.com HiSpeed Switch Troubleshooting Guide Chapter HiSpeed Switch What is the HiSpeed Switch? Basic Product Features SupportedAvailable Configurations Base model configurations Total Model Mbps Uplink Upgrades To Ports TX Ports FX PortsHS140/150-010 Model HS140/150-100 ModelHiSpeed switch expansion modules Expansion ModulesModule Number Mbps Mbps Base Model TX Ports FX PortsModel Ports Type Base Model UpLink ModulesUplink modules for the HS15-010 and HS150-100 Chapter Hardware Diagnostics Observing LEDsReset Button LEDsModule LEDs LED statusHardware Diagnostics RJ-45 LEDs LEDs on FX portsColor Status Description Color State DescriptionHiSpeed Memory, Boot Prom, Flash Components Factory Switch SettingsHiSpeed Switch Troubleshooting Guide Chapter Cabling Basic Connections10BASE-TX Ports RJ-45 Connector pin assignmentsPin MDI-X Signal 10/100BASE-TX Ports 100BASE-FX PortsConsole Port Pin Assignments Pins Signal NameConsole Port Cabling HiSpeed Switch Troubleshooting Guide Chapter Fundamentals of Networking Examples of Physical Layer devices are repeaters and hubs Network MediaExamples of Layer 2 devices are bridges and switches HiSpeed Switch Troubleshooting GUide Using the Console Port Chapter Methods of Managing the SwitchCLI Command Line Interface Using a Telnet Session Troubleshooting a Console ConnectionTroubleshooting a Telnet Session LoggingHiView Switch Management Windows 95/Windows NTUnix HiView TipsTroubleshooting HiView Snmpc IssuesExample Reload Nowagain MIB CompilerFig2. MIB Browser SNMPTalk Issues Chapter Bridging Concepts Basic Bridging Concepts How Spanning Tree WorksUsing Spanning Tree Troubleshooting Bridging Issues To reduce the STA timer, type CLI Commands VlanHiSpeed Switch Troubleshooting Guide Chapter Vlan Concepts Default VLANs Multiple VLANs VLANsTroubleshooting VLANs Problem Cannot ping a users on a different VlanUseful CLI Commands Description CLI command Vlan entry createdVlan Tips Vlan EntriesChapter Troubleshooting at the MAC Layer Ethernet Physical Media Specifications Common Ethernet ErrorsAlignment errors FCS errorsEthernet Tips Oversized framesTroubleshooting Ethernet To clear the buffer queuesDisplays all port speeds, duplexity HiSpeed Switch Troubleshooting GUide IP address classes Class Range Subnet MaskOther IP-related Services RIP Routing Information ProtocolStatic Routes vs. Dynamic Routes Default RouteRoute Cache Forwarding vs. IP Forwarding Common Icmp Destination Unreachable Messages Network UnreachableTroubleshooting IP CLI Commands Problem Cannot establish a telnet session to the switchChapter Basic ATM Concepts VPI/VCIPermanent Virtual Circuits vs Switched Virtual Circuits LAN Emulation LaneLAN Emulation Client LEC Classical IP over ATM CIP Point-to-Point Bridging PtopTrunking ATM PtopHitachi HiSpeed ATM Specifications ATM Troubleshooting TipsTroubleshooting Lane Troubleshooting CIP Verify the following using /ATM/SHOW/connection11-9 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 Chapter Fddi Concepts Dual RingFddi Uplink Module installed in an HS150 HiSpeed Fddi UplinkCable Connections SAS cable connectionsLED Status Board Status Description Yellow Green Fddi Bridge ModesLED States Fddi Troubleshooting Tips Filtering ModeForwarding Mode Promiscuous ModeTroubleshooting Fddi Verify that physical port 34 is active using vvpProblem Cannot ping another Vlan over Fddi 12-8 Displays the Fddi MAC Neighbor address table 12-10 71$ IndexE54 C1=5.2 ?U?B*,8

US7070447-001 specifications

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