Reference Guide

IP Access Control Lists (ACLs)..................................................................................................................................... 80
CAM Usage................................................................................................................................................................... 80
Implementing ACLs .....................................................................................................................................................81
IP Fragment Handling.......................................................................................................................................................82
IP Fragments ACL Examples.....................................................................................................................................82
Layer 4 ACL Rules Examples.................................................................................................................................... 83
Configure a Standard IP ACL......................................................................................................................................... 84
Configuring a Standard IP ACL Filter..................................................................................................................... 84
Configure an Extended IP ACL...................................................................................................................................... 85
Configuring Filters with a Sequence Number.......................................................................................................85
Configuring Filters Without a Sequence Number................................................................................................86
Configure Layer 2 and Layer 3 ACLs............................................................................................................................87
Using ACL VLAN Groups.................................................................................................................................................88
Guidelines for Configuring ACL VLAN Groups..................................................................................................... 88
Configuring an ACL VLAN Group............................................................................................................................ 88
Allocating ACL VLAN CAM....................................................................................................................................... 89
Applying an IP ACL to an Interface...............................................................................................................................90
Configure Ingress ACLs............................................................................................................................................. 90
Configure Egress ACLs...............................................................................................................................................91
Applying Egress Layer 3 ACLs (Control-Plane)....................................................................................................91
Counting ACL Hits.......................................................................................................................................................92
IP Prefix Lists..................................................................................................................................................................... 92
Configuration Task List for Prefix Lists................................................................................................................. 93
ACL Resequencing............................................................................................................................................................96
Resequencing an ACL or Prefix List....................................................................................................................... 96
Route Maps.........................................................................................................................................................................97
Important Points to Remember..................................................................................................................................... 98
Configuration Task List for Route Maps................................................................................................................98
Configuring Match Routes...................................................................................................................................... 100
Configuring Set Conditions...................................................................................................................................... 101
Configure a Route Map for Route Redistribution.............................................................................................. 102
Configure a Route Map for Route Tagging......................................................................................................... 102
Continue Clause......................................................................................................................................................... 103
Chapter 7: Bare Metal Provisioning (BMP).................................................................................104
Chapter 8: Bidirectional Forwarding Detection (BFD)................................................................ 105
How BFD Works...............................................................................................................................................................105
BFD Packet Format...................................................................................................................................................106
BFD Sessions.............................................................................................................................................................. 107
BFD Three-Way Handshake....................................................................................................................................108
Session State Changes.............................................................................................................................................109
Important Points to Remember....................................................................................................................................109
Configure BFD..................................................................................................................................................................109
Configure BFD for Static Routes............................................................................................................................110
Configure BFD for OSPF........................................................................................................................................... 111
Configure BFD for OSPFv3......................................................................................................................................113
Configure BFD for IS-IS............................................................................................................................................115
Configure BFD for BGP.............................................................................................................................................117
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