Setup Guide

Table Of Contents
Counting ACL Hits........................................................................................................................................................ 113
Configure Ingress ACLs..................................................................................................................................................... 113
Configure Egress ACLs...................................................................................................................................................... 113
Applying Egress Layer 3 ACLs (Control-Plane)........................................................................................................ 114
Configuring UDF ACL.........................................................................................................................................................115
IP Prefix Lists.......................................................................................................................................................................117
Configuration Task List for Prefix Lists......................................................................................................................117
ACL Remarks......................................................................................................................................................................120
Configuring a Remark..................................................................................................................................................120
Deleting a Remark.........................................................................................................................................................121
ACL Resequencing............................................................................................................................................................. 121
Resequencing an ACL or Prefix List.......................................................................................................................... 122
Route Maps........................................................................................................................................................................ 123
8 Bidirectional Forwarding Detection (BFD)................................................................................... 124
How BFD Works.................................................................................................................................................................124
BFD Packet Format..................................................................................................................................................... 125
BFD Sessions................................................................................................................................................................ 126
BFD Three-Way Handshake....................................................................................................................................... 127
Session State Changes................................................................................................................................................128
Important Points to Remember........................................................................................................................................128
Configure BFD....................................................................................................................................................................128
Configure BFD for Physical Ports.............................................................................................................................. 129
Configure BFD for Static Routes...............................................................................................................................130
Configure BFD for IPv6 Static Routes...................................................................................................................... 133
Configure BFD for OSPF............................................................................................................................................ 135
Configure BFD for OSPFv3........................................................................................................................................ 140
Configure BFD for IS-IS...............................................................................................................................................142
Configure BFD for BGP...............................................................................................................................................144
Configure BFD for VRRP.............................................................................................................................................151
Configuring Protocol Liveness....................................................................................................................................153
9 Border Gateway Protocol (BGP).................................................................................................154
BGP IP version 4 (BGPv4) Overview..............................................................................................................................154
BGP Autonomous Systems.........................................................................................................................................154
AS4 Number Representation......................................................................................................................................156
Four-Byte AS Numbers...............................................................................................................................................158
BGP router ID............................................................................................................................................................... 158
Sessions and Peers...................................................................................................................................................... 158
Establish a Session.......................................................................................................................................................158
BGP Attributes for selecting Best Path....................................................................................................................159
Multiprotocol BGP....................................................................................................................................................... 164
BGP global and address family configuration...........................................................................................................165
Implement BGP with Dell EMC Networking OS...................................................................................................... 166
Configuration Information...........................................................................................................................................169
Basic BGP configuration tasks.........................................................................................................................................169
Prerequisite for configuring a BGP network............................................................................................................ 169
Restrictions...................................................................................................................................................................169
Enabling BGP................................................................................................................................................................169
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