Concept Guide

Table Of Contents
PVLAN Operations When a VLT Peer is Restarted..............................................................................................941
Interoperation of VLT Nodes in a PVLAN with ARP Requests........................................................................... 941
Scenarios for VLAN Membership and MAC Synchronization With VLT Nodes in PVLAN.............................941
Conguring a VLT VLAN or LAG in a PVLAN............................................................................................................ 943
Creating a VLT LAG or a VLT VLAN......................................................................................................................943
Associating the VLT LAG or VLT VLAN in a PVLAN...........................................................................................944
Proxy ARP Capability on VLT Peer Nodes..................................................................................................................945
Working of Proxy ARP for VLT Peer Nodes.........................................................................................................945
Conguring VLAN-Stack over VLT............................................................................................................................. 946
66 Virtual Router Redundancy Protocol (VRRP)...........................................................................................949
VRRP Overview.............................................................................................................................................................949
VRRP Benets...............................................................................................................................................................950
VRRP Implementation...................................................................................................................................................950
VRRP Conguration.......................................................................................................................................................951
Conguration Task List............................................................................................................................................ 951
Setting VRRP Initialization Delay........................................................................................................................... 959
Sample Congurations..................................................................................................................................................960
VRRP for an IPv4 Conguration............................................................................................................................960
67 Debugging and Diagnostics......................................................................................................................963
Supported Modes..........................................................................................................................................................963
Debugging Aggregator Operation................................................................................................................................963
All interfaces on the Aggregator are operationally down....................................................................................963
Broadcast, unknown multicast, and DLF packets switched at a very low rate............................................... 964
Flooded packets on all VLANs are received on a server.....................................................................................964
Software show Commands..........................................................................................................................................965
Oine Diagnostics.........................................................................................................................................................966
Important Points to Remember............................................................................................................................. 966
Running Oine Diagnostics................................................................................................................................... 966
Trace Logs.......................................................................................................................................................................967
Auto Save on Crash or Rollover............................................................................................................................. 967
Using the Show Hardware Commands....................................................................................................................... 967
Environmental Monitoring............................................................................................................................................ 969
Recognize an Over-Temperature Condition......................................................................................................... 969
Troubleshoot an Over-Temperature Condition..................................................................................................... 970
Recognize an Under-Voltage Condition.................................................................................................................971
Troubleshoot an Under-Voltage Condition.............................................................................................................971
Troubleshooting Packet Loss.........................................................................................................................................971
Displaying Drop Counters........................................................................................................................................972
Dataplane Statistics................................................................................................................................................. 973
Displaying Stack Port Statistics..............................................................................................................................974
Enabling Buer Statistics Tracking .............................................................................................................................975
Restoring the Factory Default Settings.......................................................................................................................977
Important Points to Remember..............................................................................................................................977
Contents
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