Concept Guide
Conguring Route Leaking with Filtering..............................................................................................................1181
66 Virtual Router Redundancy Protocol (VRRP).......................................................................................... 1184
VRRP Overview............................................................................................................................................................ 1184
VRRP Benets.............................................................................................................................................................. 1185
VRRP Implementation.................................................................................................................................................. 1185
VRRP Conguration..................................................................................................................................................... 1186
Conguration Task List...........................................................................................................................................1186
Setting VRRP Initialization Delay.......................................................................................................................... 1195
Sample Congurations................................................................................................................................................. 1196
VRRP for an IPv4 Conguration........................................................................................................................... 1196
VRRP in a VRF Conguration................................................................................................................................1199
VRRP for IPv6 Conguration................................................................................................................................1204
Proxy Gateway with VRRP......................................................................................................................................... 1208
67 Debugging and Diagnostics..................................................................................................................... 1213
Oine Diagnostics........................................................................................................................................................ 1213
Important Points to Remember.............................................................................................................................1213
Running Oine Diagnostics...................................................................................................................................1213
Trace Logs......................................................................................................................................................................1216
Auto Save on Crash or Rollover.................................................................................................................................. 1216
Last Restart Reason..................................................................................................................................................... 1216
Hardware Watchdog Timer..........................................................................................................................................1217
Using the Show Hardware Commands...................................................................................................................... 1217
Enabling Environmental Monitoring............................................................................................................................ 1218
Recognize an Overtemperature Condition.......................................................................................................... 1219
Troubleshoot an Over-temperature Condition....................................................................................................1220
Recognize an Under-Voltage Condition...............................................................................................................1220
Troubleshoot an Under-Voltage Condition.......................................................................................................... 1220
Troubleshooting Packet Loss.......................................................................................................................................1221
Displaying Drop Counters.......................................................................................................................................1221
Dataplane Statistics............................................................................................................................................... 1225
Display Stack Port Statistics.................................................................................................................................1226
Display Stack Member Counters..........................................................................................................................1226
Enabling Application Core Dumps.............................................................................................................................. 1229
Mini Core Dumps..........................................................................................................................................................1229
Enabling TCP Dumps...................................................................................................................................................1230
68 Standards Compliance............................................................................................................................ 1231
IEEE Compliance........................................................................................................................................................... 1231
RFC and I-D Compliance.............................................................................................................................................1232
General Internet Protocols.................................................................................................................................... 1232
General IPv4 Protocols.......................................................................................................................................... 1234
General IPv6 Protocols..........................................................................................................................................1235
Border Gateway Protocol (BGP)..........................................................................................................................1236
Open Shortest Path First (OSPF)........................................................................................................................1237
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