Concept Guide

62 Virtual Routing and Forwarding (VRF)....................................................................................................1062
VRF Overview.............................................................................................................................................................. 1062
VRF Conguration Notes............................................................................................................................................1063
DHCP.......................................................................................................................................................................1065
VRF Conguration....................................................................................................................................................... 1065
Loading VRF CAM................................................................................................................................................. 1065
Creating a Non-Default VRF Instance.................................................................................................................1065
Assigning an Interface to a VRF...........................................................................................................................1066
Assigning a Front-end Port to a Management VRF.......................................................................................... 1066
View VRF Instance Information............................................................................................................................1066
Assigning an OSPF Process to a VRF Instance..................................................................................................1067
Conguring VRRP on a VRF Instance................................................................................................................. 1067
Conguring Management VRF.............................................................................................................................1068
Conguring a Static Route....................................................................................................................................1069
Sample VRF Conguration..........................................................................................................................................1069
Route Leaking VRFs.....................................................................................................................................................1074
Dynamic Route Leaking............................................................................................................................................... 1075
Conguring Route Leaking without Filtering Criteria.........................................................................................1075
Conguring Route Leaking with Filtering............................................................................................................ 1078
63 Virtual Router Redundancy Protocol (VRRP).......................................................................................... 1081
VRRP Overview............................................................................................................................................................ 1081
VRRP Benets..............................................................................................................................................................1082
VRRP Implementation................................................................................................................................................. 1082
VRRP Conguration.....................................................................................................................................................1083
Conguration Task List.......................................................................................................................................... 1083
Setting VRRP Initialization Delay..........................................................................................................................1092
VRRP for IPv6 Conguration................................................................................................................................1093
Sample Congurations................................................................................................................................................ 1096
VRRP for an IPv4 Conguration.......................................................................................................................... 1096
VRRP in a VRF Conguration................................................................................................................................1100
64 Debugging and Diagnostics.....................................................................................................................1106
Oine Diagnostics........................................................................................................................................................1106
Important Points to Remember.............................................................................................................................1106
Running Oine Diagnostics...................................................................................................................................1106
Trace Logs......................................................................................................................................................................1109
Auto Save on Crash or Rollover.................................................................................................................................. 1109
Last Restart Reason.....................................................................................................................................................1109
Hardware Watchdog Timer.......................................................................................................................................... 1110
Using the Show Hardware Commands.......................................................................................................................1110
Enabling Environmental Monitoring..............................................................................................................................1111
Recognize an Overtemperature Condition........................................................................................................... 1112
Troubleshoot an Over-temperature Condition..................................................................................................... 1113
Recognize an Under-Voltage Condition................................................................................................................ 1113
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