Administrator Guide

67 Virtual Router Redundancy Protocol (VRRP)........................................................................... 1049
VRRP Overview...............................................................................................................................................................1049
VRRP Benefits................................................................................................................................................................. 1050
VRRP Implementation.....................................................................................................................................................1050
VRRP Configuration.........................................................................................................................................................1051
Configuration Task List..............................................................................................................................................1051
Setting VRRP Initialization Delay............................................................................................................................. 1059
Sample Configurations....................................................................................................................................................1059
VRRP in a VRF Configuration.................................................................................................................................. 1063
VRRP for IPv6 Configuration................................................................................................................................... 1068
Proxy Gateway with VRRP............................................................................................................................................. 1071
68 Debugging and Diagnostics.................................................................................................... 1076
Offline Diagnostics...........................................................................................................................................................1076
Important Points to Remember............................................................................................................................... 1076
Running Offline Diagnostics......................................................................................................................................1076
Trace Logs........................................................................................................................................................................ 1079
Auto Save on Crash or Rollover.....................................................................................................................................1079
Last Restart Reason........................................................................................................................................................1079
Hardware Watchdog Timer............................................................................................................................................ 1079
Using the Show Hardware Commands.........................................................................................................................1079
Enabling Environmental Monitoring...............................................................................................................................1080
Recognize an Overtemperature Condition..............................................................................................................1081
Troubleshoot an Over-temperature Condition...................................................................................................... 1082
Recognize an Under-Voltage Condition..................................................................................................................1082
Troubleshoot an Under-Voltage Condition.............................................................................................................1082
Troubleshooting Packet Loss.........................................................................................................................................1083
Displaying Drop Counters......................................................................................................................................... 1083
Dataplane Statistics...................................................................................................................................................1086
Display Stack Port Statistics.................................................................................................................................... 1087
Display Stack Member Counters............................................................................................................................. 1088
Enabling Application Core Dumps..................................................................................................................................1090
Mini Core Dumps..............................................................................................................................................................1091
Enabling TCP Dumps....................................................................................................................................................... 1091
69 Standards Compliance........................................................................................................... 1093
IEEE Compliance..............................................................................................................................................................1093
RFC and I-D Compliance................................................................................................................................................ 1094
General Internet Protocols....................................................................................................................................... 1094
General IPv4 Protocols............................................................................................................................................. 1095
General IPv6 Protocols............................................................................................................................................. 1096
Border Gateway Protocol (BGP).............................................................................................................................1097
Open Shortest Path First (OSPF)...........................................................................................................................1098
Intermediate System to Intermediate System (IS-IS)...........................................................................................1098
Routing Information Protocol (RIP)........................................................................................................................ 1099
Multicast..................................................................................................................................................................... 1099
Network Management...............................................................................................................................................1100
MIB Location.....................................................................................................................................................................1104
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