Dell S4820T User Manual

Applying Egress Layer 3 ACLs (Control-Plane).......................................................................... 145
IP Prefix Lists......................................................................................................................................145
Implementation Information...................................................................................................... 146
Configuration Task List for Prefix Lists....................................................................................... 146
ACL Resequencing............................................................................................................................150
Resequencing an ACL or Prefix List............................................................................................ 151
Route Maps........................................................................................................................................152
Implementation Information.......................................................................................................153
Important Points to Remember........................................................................................................153
Configuration Task List for Route Maps..................................................................................... 153
Configuring Match Routes..........................................................................................................156
Configuring Set Conditions.........................................................................................................157
Configure a Route Map for Route Redistribution...................................................................... 158
Configure a Route Map for Route Tagging................................................................................159
Continue Clause..........................................................................................................................159
Logging of ACL Processes................................................................................................................160
Guidelines for Configuring ACL Logging....................................................................................161
Configuring ACL Logging............................................................................................................161
Flow-Based Monitoring Support for ACLs....................................................................................... 162
Behavior of Flow-Based Monitoring...........................................................................................163
Enabling Flow-Based Monitoring............................................................................................... 164
9 Bidirectional Forwarding Detection (BFD).................................................. 166
How BFD Works................................................................................................................................ 166
BFD Packet Format......................................................................................................................167
BFD Sessions................................................................................................................................169
BFD Three-Way Handshake........................................................................................................169
Session State Changes................................................................................................................ 170
Important Points to Remember........................................................................................................ 171
Configure BFD....................................................................................................................................171
Configure BFD for Physical Ports................................................................................................172
Configure BFD for Static Routes.................................................................................................175
Configure BFD for OSPF..............................................................................................................177
Configure BFD for OSPFv3......................................................................................................... 180
Configure BFD for IS-IS...............................................................................................................181
Configure BFD for BGP...............................................................................................................184
Configure BFD for VRRP..............................................................................................................191
Configuring Protocol Liveness................................................................................................... 194
Troubleshooting BFD.................................................................................................................. 195
10 Border Gateway Protocol IPv4 (BGPv4).....................................................197
Autonomous Systems (AS)................................................................................................................197
7

Dell S4820T Specifications

General

Brand	Dell
Model	S4820T
Category	Switch
Language	English