HP T1453-90001 manual Troubleshooting

Page 56

Troubleshooting

This chapter provides guidelines for troubleshooting VLANs. It contains the following sections:

•Diagnostic Flowcharts.

•Use of lanadmin and lanscan commands and scripts for testing or troubleshooting VLANs.

56	Appendix A

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Contents Using HP-UX VLANs Legal Notices Contents Glossary Tables Tables Figures Figures What are HP-UX VLANs? VLANs Virtual LANs Physical ViewLogical View Chapter HP-UX Vlan Features Beneﬁts of HP-UX VLANs Types of VLANs Supported by HP-UX HP-UX Vlan Tagging Ieee 802.1Q Vlan Tag in Ethernet FrameVlans Overlapping or Sharing the Same LAN Card Port System and Software Requirements Patches Required for the March 2002 HP-UX 11i-based VersionNeeded Patches for HP-UX VLANs Driver 11i Patch #Supported Switches Unsupported Functionality Overview of Installation Planning HP-UX VLANs Communication between Vlans Requires an External RouterHow to Conﬁgure VLANs on the Switch Tagged and Untagged Vlan Technology in Same NetworkSummary of Vlan Tagging Assignment VLANs Per Tagging Scheme PortHow to Conﬁgure VLANs on HP-UX Conﬁguration Process Properties of a Vlan Promiscuous Mode Characteristics Special Case of Vlan ID 0--Priority Tagged FramesAllowable Values for Parameters in vlanconf File Parameter Range Default Type Description RestrictionsAllowable Values for HP VLANs Parameter -- description Range and Restrictions Default Type Using VLANs with MC/ServiceGuard Example VLANs and Service GuardLan5002 Lan5003 Lan5000 Lan5001 Vlanid Lan2How is 802.1p Priority Set? ToS to 802.1 User Priority Mappings Based on IP PrecedenceValue in vlanconf File Allowable Settings for VlanprioverridePriority Override Setting Outbound IP Packets Allowable Settings for Vlantosoverride Value in vlanconfSetting 802.1p Priority, ToS, and Overrides Where to Get More InformationWhere to Get More Information Chapter Conﬁguring VLANs Using SAM Conﬁguring VLANs Using SAM List Pulldown with Virtual LANs DisplayedAction Pulldown for Creating Virtual LANs Create Virtual LANs Add an IP Address for the Vlan Conﬁguring VLANs Using SAM Chapter Conﬁguring VLANs by Editing Modifying Parameters in vlanconf File # VlanidConftos # VLANPRIORITY1= Using lanadmin -V to Using the lanadmin -V Command for Administering VLANs Lanadmin SyntaxUsing lanadmin to Create a Vlan Displaying a Vlan and its PropertiesUsing lanadmin to Set 802.1p Priority, ToS, and Overrides Using lanadmin to Query for VLANs on a SystemUsing a Vlan Using lanadmin to Modify a VlanUsing lanadmin to Delete a Vlan Lanadmin -V modify vlanid 53 pri 3Lanadmin -V delete Using lanadmin -V to Administer VLANs Troubleshooting Troubleshooting Diagnostic Flowcharts Table A-1 Flowchart Descriptions Chart Type of Test PurposeFlowchart 1 Link Level Tests Figure A-1 Flowchart Flowchart 1a Linkloop Test Figure A-2 Flowchart 1aFlowchart 1a Procedures Flowchart 1b lanscan and lanadmin Test Figure A-3 Flowchart 1bFlowchart 1b Procedures Flowchart 2 Network Level Tests Figure A-4 FlowchartFlowchart 2 Procedures Flowchart 2a ARP Test Figure A-5 Flowchart 2aFlowchart 2a Procedures Flowchart 2b ping Test Figure A-6 Flowchart 2bFlowchart 2b Procedures Figure A-7 Flowchart 2b Flowchart 2 Network Level Tests NetTL Trace and Log of VLANs Tracing Output from a Gigabit Ethernet CardLogging Example NetTL Trace and Log of VLANsNetTL Trace and Log of VLANs Appendix a Glossary GlossaryGlossary Maximum Transmission Unit MTUVppa Virtual PPA or Vppa Glossary