Reference Guide

Table Of Contents
Chapter 67: Virtual Router Redundancy Protocol (VRRP)......................................................... 1108
VRRP Overview..............................................................................................................................................................1108
VRRP Benefits................................................................................................................................................................ 1109
VRRP Implementation...................................................................................................................................................1109
VRRP Configuration....................................................................................................................................................... 1110
Configuration Task List............................................................................................................................................1110
Setting VRRP Initialization Delay...........................................................................................................................1118
Sample Configurations...................................................................................................................................................1119
VRRP in a VRF Configuration................................................................................................................................1122
VRRP for IPv6 Configuration................................................................................................................................ 1127
Proxy Gateway with VRRP...........................................................................................................................................1131
Chapter 68: Debugging and Diagnostics................................................................................... 1135
Offline Diagnostics.........................................................................................................................................................1135
Important Points to Remember............................................................................................................................ 1135
Running Offline Diagnostics...................................................................................................................................1135
Trace Logs....................................................................................................................................................................... 1138
Auto Save on Crash or Rollover................................................................................................................................. 1138
Last Restart Reason......................................................................................................................................................1138
Hardware Watchdog Timer..........................................................................................................................................1139
Using the Show Hardware Commands..................................................................................................................... 1139
Enabling Environmental Monitoring...........................................................................................................................1140
Recognize an Overtemperature Condition......................................................................................................... 1141
Troubleshoot an Over-temperature Condition...................................................................................................1141
Recognize an Under-Voltage Condition..............................................................................................................1142
Troubleshoot an Under-Voltage Condition........................................................................................................ 1142
Troubleshooting Packet Loss...................................................................................................................................... 1143
Displaying Drop Counters....................................................................................................................................... 1143
Dataplane Statistics.................................................................................................................................................1146
Display Stack Port Statistics................................................................................................................................. 1147
Display Stack Member Counters.......................................................................................................................... 1147
Enabling Application Core Dumps.............................................................................................................................. 1150
Mini Core Dumps............................................................................................................................................................1150
Enabling TCP Dumps......................................................................................................................................................1151
Chapter 69: Standards Compliance...........................................................................................1152
IEEE Compliance............................................................................................................................................................ 1152
RFC and I-D Compliance.............................................................................................................................................. 1153
General Internet Protocols.....................................................................................................................................1153
General IPv4 Protocols........................................................................................................................................... 1154
General IPv6 Protocols........................................................................................................................................... 1155
Border Gateway Protocol (BGP)......................................................................................................................... 1156
Open Shortest Path First (OSPF)........................................................................................................................1157
Intermediate System to Intermediate System (IS-IS).....................................................................................1158
Routing Information Protocol (RIP).....................................................................................................................1159
Multicast.....................................................................................................................................................................1159
Network Management............................................................................................................................................ 1159
MIB Location................................................................................................................................................................... 1165
Contents
31