Connectivity Guide

Table Of Contents
Chapter 62: Virtual Router Redundancy Protocol (VRRP).........................................................1051
VRRP Overview..............................................................................................................................................................1051
VRRP Benefits............................................................................................................................................................... 1052
VRRP Implementation.................................................................................................................................................. 1052
VRRP Configuration..................................................................................................................................................... 1053
Configuration Task List.......................................................................................................................................... 1053
Setting VRRP Initialization Delay..........................................................................................................................1061
Sample Configurations..................................................................................................................................................1061
VRRP in a VRF Configuration...............................................................................................................................1065
VRRP for IPv6 Configuration............................................................................................................................... 1070
Proxy Gateway with VRRP......................................................................................................................................... 1074
Chapter 63: Debugging and Diagnostics................................................................................... 1078
Offline Diagnostics........................................................................................................................................................ 1078
Important Points to Remember............................................................................................................................1078
Running Offline Diagnostics.................................................................................................................................. 1078
Trace Logs...................................................................................................................................................................... 1082
Auto Save on Crash or Rollover.................................................................................................................................1082
Hardware Watchdog Timer.........................................................................................................................................1082
Enabling Environmental Monitoring.......................................................................................................................... 1082
Recognize an Overtemperature Condition........................................................................................................1083
Troubleshoot an Over-temperature Condition.................................................................................................1084
Recognize an Under-Voltage Condition.............................................................................................................1084
Troubleshoot an Under-Voltage Condition........................................................................................................1084
Buffer Tuning................................................................................................................................................................. 1085
Troubleshooting Packet Loss..................................................................................................................................... 1085
Displaying Drop Counters...................................................................................................................................... 1086
Dataplane Statistics................................................................................................................................................ 1087
Display Stack Port Statistics................................................................................................................................ 1088
Display Stack Member Counters......................................................................................................................... 1089
Enabling Application Core Dumps.............................................................................................................................. 1091
Mini Core Dumps............................................................................................................................................................1091
Enabling TCP Dumps....................................................................................................................................................1092
Chapter 64: Standards Compliance.......................................................................................... 1094
IEEE Compliance............................................................................................................................................................1094
RFC and I-D Compliance............................................................................................................................................. 1095
General Internet Protocols....................................................................................................................................1095
General IPv4 Protocols.......................................................................................................................................... 1096
General IPv6 Protocols.......................................................................................................................................... 1097
Border Gateway Protocol (BGP).........................................................................................................................1098
Open Shortest Path First (OSPF).......................................................................................................................1099
Intermediate System to Intermediate System (IS-IS).....................................................................................1100
Routing Information Protocol (RIP)..................................................................................................................... 1101
Multicast..................................................................................................................................................................... 1101
Network Management............................................................................................................................................. 1101
MIB Location................................................................................................................................................................... 1107
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