Users Guide
62 Virtual Router Redundancy Protocol (VRRP)...........................................................................................983
VRRP Overview.............................................................................................................................................................983
VRRP Benets............................................................................................................................................................... 984
VRRP Implementation...................................................................................................................................................984
VRRP Conguration......................................................................................................................................................985
Conguration Task List............................................................................................................................................985
Setting VRRP Initialization Delay........................................................................................................................... 994
Sample Congurations..................................................................................................................................................995
VRRP for an IPv4 Conguration............................................................................................................................995
VRRP in a VRF Conguration................................................................................................................................ 998
VRRP for IPv6 Conguration................................................................................................................................1003
63 Debugging and Diagnostics.................................................................................................................... 1007
Oine Diagnostics....................................................................................................................................................... 1007
Important Points to Remember............................................................................................................................ 1007
Running Oine Diagnostics.................................................................................................................................. 1007
Trace Logs.....................................................................................................................................................................1008
Auto Save on Crash or Rollover................................................................................................................................. 1008
Last Restart Reason.................................................................................................................................................... 1008
Hardware Watchdog Timer.........................................................................................................................................1009
Using the Show Hardware Commands..................................................................................................................... 1009
Enabling Environmental Monitoring............................................................................................................................1010
Recognize an Overtemperature Condition.......................................................................................................... 1010
Troubleshoot an Over-temperature Condition..................................................................................................... 1011
Recognize an Under-Voltage Condition................................................................................................................ 1011
Troubleshoot an Under-Voltage Condition............................................................................................................1011
Troubleshooting Packet Loss.......................................................................................................................................1012
Displaying Drop Counters.......................................................................................................................................1013
Dataplane Statistics................................................................................................................................................1016
Display Stack Port Statistics..................................................................................................................................1017
Display Stack Member Counters...........................................................................................................................1017
Enabling Application Core Dumps...............................................................................................................................1019
Mini Core Dumps.......................................................................................................................................................... 1019
Enabling TCP Dumps...................................................................................................................................................1020
64 Standards Compliance............................................................................................................................ 1021
IEEE Compliance...........................................................................................................................................................1021
RFC and I-D Compliance.............................................................................................................................................1022
General Internet Protocols.................................................................................................................................... 1022
General IPv4 Protocols.......................................................................................................................................... 1023
General IPv6 Protocols..........................................................................................................................................1024
Border Gateway Protocol (BGP)..........................................................................................................................1026
Open Shortest Path First (OSPF)........................................................................................................................1026
Intermediate System to Intermediate System (IS-IS)........................................................................................1027
Routing Information Protocol (RIP)......................................................................................................................1027
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