Users Guide

Configure a Standard IP ACL................................................................................................................................114
Configuring a Standard IP ACL Filter.............................................................................................................115
Configure an Extended IP ACL.............................................................................................................................116
Configuring Filters with a Sequence Number.............................................................................................116
Configuring Filters Without a Sequence Number......................................................................................118
Configure Layer 2 and Layer 3 ACLs...................................................................................................................118
Using ACL VLAN Groups....................................................................................................................................... 119
Guidelines for Configuring ACL VLAN Groups........................................................................................... 119
Configuring an ACL VLAN Group..................................................................................................................120
Allocating ACL VLAN CAM.............................................................................................................................. 121
Applying an IP ACL to an Interface......................................................................................................................121
Applying Ingress ACLs on the Port Extender.............................................................................................. 122
Applying Egress ACLs.......................................................................................................................................122
Applying Layer 3 Egress ACLs on Control-Plane Traffic.......................................................................... 123
Counting ACL Hits............................................................................................................................................124
IP Prefix Lists............................................................................................................................................................124
Implementation Information..........................................................................................................................124
Configuration Task List for Prefix Lists.........................................................................................................124
ACL Resequencing................................................................................................................................................. 128
Resequencing an ACL or Prefix List..............................................................................................................129
Route Maps..............................................................................................................................................................130
Implementation Information..........................................................................................................................130
Important Points to Remember.......................................................................................................................... 130
Configuration Task List for Route Maps...................................................................................................... 130
Configuring Match Routes..............................................................................................................................133
Configuring Set Conditions............................................................................................................................134
Configure a Route Map for Route Redistribution...................................................................................... 135
Configure a Route Map for Route Tagging.................................................................................................135
Continue Clause............................................................................................................................................... 136
Configuring a UDF ACL.........................................................................................................................................136
Hot-Lock Behavior.................................................................................................................................................138
7 Bidirectional Forwarding Detection (BFD)......................................................................................................139
How BFD Works......................................................................................................................................................139
BFD Packet Format.......................................................................................................................................... 140
BFD Sessions...................................................................................................................................................... 141
BFD Three-Way Handshake........................................................................................................................... 142
Session State Changes.................................................................................................................................... 144
Important Points to Remember.......................................................................................................................... 144
Configure BFD.........................................................................................................................................................144
Configure BFD for Static Routes................................................................................................................... 145
Configure BFD for OSPF..................................................................................................................................147
Configure BFD for OSPFv3............................................................................................................................. 150
Configure BFD for IS-IS................................................................................................................................... 151
Configure BFD for BGP................................................................................................................................... 154
Configure BFD for VRRP................................................................................................................................. 160
Configuring Protocol Liveness...................................................................................................................... 163
Version 9.10(0.1)
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