Users Guide

42 Contents
What Is VRRP Preemption? . . . . . . . . . . . . 1368
What Is VRRP Accept Mode?
. . . . . . . . . . . 1369
What Are VRRP Route and Interface Tracking?
. 1369
VRRP and OSPF Interoperability
. . . . . . . . . 1370
Default VRRP Values
. . . . . . . . . . . . . . . . . . 1371
Configuring VRRP Features (Web)
. . . . . . . . . . . 1372
VRRP Configuration
. . . . . . . . . . . . . . . . 1372
VRRP Virtual Router Status
. . . . . . . . . . . . 1373
VRRP Virtual Router Statistics
. . . . . . . . . . 1374
VRRP Router Configuration
. . . . . . . . . . . . 1375
VRRP Route Tracking Configuration
. . . . . . . 1376
VRRP Interface Tracking Configuration
. . . . . 1378
Configuring VRRP Features (CLI)
. . . . . . . . . . . . 1380
Configuring VRRP Settings
. . . . . . . . . . . . 1380
VRRP Configuration Example
. . . . . . . . . . . . . 1382
VRRP with Load Sharing
. . . . . . . . . . . . . 1382
Troubleshooting VRRP
. . . . . . . . . . . . . . 1385
VRRP with Route and Interface Tracking
. . . . . 1386
Configuring VRRP in a VRF
. . . . . . . . . . . . 1389
38 BGP . . . . . . . . . . . . . . . . . . . . . . . . . . . 1393
Overview . . . . . . . . . . . . . . . . . . . . . . . . 1394
Autonomous Systems
. . . . . . . . . . . . . . . 1396
Graceful Restart
. . . . . . . . . . . . . . . . . . 1396
BGP Operations
. . . . . . . . . . . . . . . . . . . . 1396
Decision Process Overview
. . . . . . . . . . . 1396
Path Attributes
. . . . . . . . . . . . . . . . . . 1398
BGP Finite State Machine (FSM)
. . . . . . . . . 1401
Detecting Loss of Adjacency
. . . . . . . . . . . 1403