Administrator Guide
Applying Egress Layer 3 ACLs (Control-Plane).......................................................................... 108
IP Prefix Lists..................................................................................................................................... 108
Implementation Information...................................................................................................... 109
Configuration Task List for Prefix Lists....................................................................................... 109
ACL Resequencing.............................................................................................................................113
Resequencing an ACL or Prefix List............................................................................................ 114
Route Maps........................................................................................................................................ 115
Implementation Information.......................................................................................................115
Important Points to Remember........................................................................................................ 115
Configuration Task List for Route Maps......................................................................................116
Configuring Match Routes.......................................................................................................... 118
Configuring Set Conditions........................................................................................................ 120
Configure a Route Map for Route Redistribution.......................................................................121
Configure a Route Map for Route Tagging................................................................................ 121
Continue Clause..........................................................................................................................122
Logging of ACL Processes................................................................................................................ 122
Guidelines for Configuring ACL Logging......................................................................................... 123
Configuring ACL Logging................................................................................................................. 124
Flow-Based Monitoring Support for ACLs....................................................................................... 124
Behavior of Flow-Based Monitoring...........................................................................................125
Enabling Flow-Based Monitoring..................................................................................................... 126
7 Access Control List (ACL) VLAN Groups and Content Addressable
Memory (CAM)......................................................................................................128
Optimizing CAM Utilization During the Attachment of ACLs to VLANs......................................... 128
Guidelines for Configuring ACL VLAN groups.................................................................................129
Configuring ACL VLAN Groups and Configuring FP Blocks for VLAN Parameters........................130
Configuring ACL VLAN Groups...................................................................................................130
Configuring FP Blocks for VLAN Parameters..............................................................................131
Viewing CAM Usage.......................................................................................................................... 132
Allocating FP Blocks for VLAN Processes.........................................................................................133
8 Bidirectional Forwarding Detection (BFD)...................................................135
How BFD Works................................................................................................................................ 135
BFD Packet Format......................................................................................................................136
BFD Sessions................................................................................................................................138
BFD Three-Way Handshake........................................................................................................138
Session State Changes................................................................................................................ 139
Important Points to Remember....................................................................................................... 140
Configure BFD...................................................................................................................................140
Configure BFD for Physical Ports................................................................................................141
Configure BFD for Static Routes.................................................................................................144