Administrator Guide

Chapter 67: Virtual Router Redundancy Protocol (VRRP)..........................................................1117
VRRP Overview...............................................................................................................................................................1117
VRRP Benefits.................................................................................................................................................................1118
VRRP Implementation....................................................................................................................................................1118
VRRP Configuration....................................................................................................................................................... 1119
Configuration Task List............................................................................................................................................1119
Setting VRRP Initialization Delay.......................................................................................................................... 1127
Sample Configurations..................................................................................................................................................1128
VRRP in a VRF Configuration................................................................................................................................ 1131
VRRP for IPv6 Configuration................................................................................................................................ 1136
Proxy Gateway with VRRP..........................................................................................................................................1140
Chapter 68: Debugging and Diagnostics....................................................................................1144
Offline Diagnostics.........................................................................................................................................................1144
Important Points to Remember............................................................................................................................ 1144
Running Offline Diagnostics...................................................................................................................................1144
Trace Logs....................................................................................................................................................................... 1147
Auto Save on Crash or Rollover..................................................................................................................................1147
Last Restart Reason...................................................................................................................................................... 1147
Hardware Watchdog Timer..........................................................................................................................................1148
Using the Show Hardware Commands..................................................................................................................... 1148
Enabling Environmental Monitoring........................................................................................................................... 1149
Recognize an Overtemperature Condition........................................................................................................ 1150
Troubleshoot an Over-temperature Condition..................................................................................................1150
Recognize an Under-Voltage Condition.............................................................................................................. 1151
Troubleshoot an Under-Voltage Condition......................................................................................................... 1151
Troubleshooting Packet Loss...................................................................................................................................... 1152
Displaying Drop Counters.......................................................................................................................................1152
Dataplane Statistics.................................................................................................................................................1155
Display Stack Port Statistics................................................................................................................................. 1156
Display Stack Member Counters.......................................................................................................................... 1156
Enabling Application Core Dumps.............................................................................................................................. 1159
Mini Core Dumps............................................................................................................................................................1159
Enabling TCP Dumps.....................................................................................................................................................1160
Chapter 69: Standards Compliance........................................................................................... 1161
IEEE Compliance............................................................................................................................................................. 1161
RFC and I-D Compliance.............................................................................................................................................. 1162
General Internet Protocols.....................................................................................................................................1162
General IPv4 Protocols........................................................................................................................................... 1163
General IPv6 Protocols........................................................................................................................................... 1164
Border Gateway Protocol (BGP)......................................................................................................................... 1165
Open Shortest Path First (OSPF)....................................................................................................................... 1166
Intermediate System to Intermediate System (IS-IS)..................................................................................... 1167
Routing Information Protocol (RIP).....................................................................................................................1168
Multicast.....................................................................................................................................................................1168
Network Management............................................................................................................................................ 1168
MIB Location................................................................................................................................................................... 1174
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