Reference Guide

VRRP Benefits..................................................................................................................................1041
VRRP Implementation.....................................................................................................................1041
VRRP Configuration........................................................................................................................1042
Configuration Task List.............................................................................................................1042
Setting VRRP Initialization Delay.............................................................................................. 1052
Sample Configurations................................................................................................................... 1053
VRRP for an IPv4 Configuration............................................................................................... 1053
VRRP in a VRF Configuration....................................................................................................1058
63 S-Series Debugging and Diagnostics......................................................... 1063
Offline Diagnostics......................................................................................................................... 1063
Important Points to Remember............................................................................................... 1063
Running Offline Diagnostics.....................................................................................................1064
Trace Logs.......................................................................................................................................1067
Auto Save on Crash or Rollover..................................................................................................... 1067
Last Restart Reason (S4820T).........................................................................................................1067
Hardware Watchdog Timer............................................................................................................1068
Using the Show Hardware Commands......................................................................................... 1068
Enabling Environmental Monitoring.............................................................................................. 1070
Recognize an Overtemperature Condition............................................................................. 1070
Troubleshoot an Over-temperature Condition.......................................................................1070
Recognize an Under-Voltage Condition..................................................................................1071
Troubleshoot an Under-Voltage Condition.............................................................................1071
Buffer Tuning...................................................................................................................................1072
Deciding to Tune Buffers..........................................................................................................1073
Using a Pre-Defined Buffer Profile...........................................................................................1076
Sample Buffer Profile Configuration.........................................................................................1077
Troubleshooting Packet Loss......................................................................................................... 1077
Displaying Drop Counters........................................................................................................ 1078
Dataplane Statistics...................................................................................................................1079
Display Stack Port Statistics......................................................................................................1080
Display Stack Member Counters..............................................................................................1080
Enabling Application Core Dumps................................................................................................. 1081
Mini Core Dumps............................................................................................................................ 1081
Enabling TCP Dumps......................................................................................................................1082
64 Standards Compliance................................................................................... 1083
IEEE Compliance............................................................................................................................ 1083
RFC and I-D Compliance...............................................................................................................1084
General Internet Protocols.......................................................................................................1084
General IPv4 Protocols.............................................................................................................1085
General IPv6 Protocols.............................................................................................................1086