Concept Guide
63 Virtual Router Redundancy Protocol (VRRP).......................................................................................... 1129
VRRP Overview............................................................................................................................................................ 1129
VRRP Benets...............................................................................................................................................................1130
VRRP Implementation.................................................................................................................................................. 1130
VRRP Conguration...................................................................................................................................................... 1131
Conguration Task List............................................................................................................................................1131
Setting VRRP Initialization Delay...........................................................................................................................1140
Sample Congurations.................................................................................................................................................. 1141
VRRP for an IPv4 Conguration............................................................................................................................1141
VRRP in a VRF Conguration................................................................................................................................1144
VRRP for IPv6 Conguration................................................................................................................................ 1149
Proxy Gateway with VRRP..........................................................................................................................................1153
64 Debugging and Diagnostics.....................................................................................................................1158
Oine Diagnostics........................................................................................................................................................1158
Important Points to Remember.............................................................................................................................1158
Running Oine Diagnostics...................................................................................................................................1158
Trace Logs......................................................................................................................................................................1162
Auto Save on Crash or Rollover.................................................................................................................................. 1162
Hardware Watchdog Timer..........................................................................................................................................1162
Enabling Environmental Monitoring............................................................................................................................ 1162
Recognize an Overtemperature Condition.......................................................................................................... 1163
Troubleshoot an Over-temperature Condition.....................................................................................................1164
Recognize an Under-Voltage Condition............................................................................................................... 1164
Troubleshoot an Under-Voltage Condition...........................................................................................................1164
Buer Tuning................................................................................................................................................................. 1165
Troubleshooting Packet Loss.......................................................................................................................................1166
Displaying Drop Counters.......................................................................................................................................1166
Dataplane Statistics................................................................................................................................................1169
Display Stack Port Statistics..................................................................................................................................1170
Display Stack Member Counters............................................................................................................................1171
Enabling Application Core Dumps............................................................................................................................... 1173
Mini Core Dumps........................................................................................................................................................... 1174
Enabling TCP Dumps.................................................................................................................................................... 1174
65 Standards Compliance............................................................................................................................ 1176
IEEE Compliance........................................................................................................................................................... 1176
RFC and I-D Compliance.............................................................................................................................................. 1177
General Internet Protocols..................................................................................................................................... 1177
General IPv4 Protocols...........................................................................................................................................1179
General IPv6 Protocols...........................................................................................................................................1180
Border Gateway Protocol (BGP)........................................................................................................................... 1181
Open Shortest Path First (OSPF)........................................................................................................................ 1182
Intermediate System to Intermediate System (IS-IS).........................................................................................1182
Routing Information Protocol (RIP)......................................................................................................................1183
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