Setup Guide

Table Of Contents
Counting ACL Hits......................................................................................................................................................119
Configure Ingress ACLs..................................................................................................................................................120
Configure Egress ACLs.................................................................................................................................................. 120
Applying Egress Layer 3 ACLs (Control-Plane).................................................................................................. 121
Configuring UDF ACL...................................................................................................................................................... 121
IP Prefix Lists....................................................................................................................................................................124
Configuration Task List for Prefix Lists................................................................................................................124
ACL Remarks.................................................................................................................................................................... 127
Configuring a Remark................................................................................................................................................127
Deleting a Remark......................................................................................................................................................128
ACL Resequencing.......................................................................................................................................................... 128
Resequencing an ACL or Prefix List......................................................................................................................129
Route Maps.......................................................................................................................................................................130
Chapter 8: Bidirectional Forwarding Detection (BFD)................................................................. 131
How BFD Works................................................................................................................................................................131
BFD Packet Format...................................................................................................................................................132
BFD Sessions.............................................................................................................................................................. 133
BFD Three-Way Handshake.................................................................................................................................... 134
Session State Changes.............................................................................................................................................135
Important Points to Remember....................................................................................................................................135
Configure BFD..................................................................................................................................................................135
Configure BFD for Physical Ports..........................................................................................................................136
Configure BFD for Static Routes........................................................................................................................... 137
Configure BFD for IPv6 Static Routes.................................................................................................................. 141
Configure BFD for OSPF..........................................................................................................................................143
Configure BFD for OSPFv3..................................................................................................................................... 148
Configure BFD for IS-IS........................................................................................................................................... 150
Configure BFD for BGP............................................................................................................................................152
Configure BFD for VRRP......................................................................................................................................... 159
Configuring Protocol Liveness................................................................................................................................ 161
Chapter 9: Border Gateway Protocol (BGP)............................................................................... 162
BGP IP version 4 (BGPv4) Overview......................................................................................................................... 162
BGP Autonomous Systems......................................................................................................................................162
AS4 Number Representation.................................................................................................................................. 164
Four-Byte AS Numbers............................................................................................................................................ 166
BGP router ID............................................................................................................................................................. 166
Sessions and Peers....................................................................................................................................................166
Establish a Session.................................................................................................................................................... 166
BGP Attributes for selecting Best Path............................................................................................................... 167
Multiprotocol BGP..................................................................................................................................................... 172
BGP global and address family configuration......................................................................................................173
Implement BGP with Dell EMC Networking OS................................................................................................. 174
Configuration Information........................................................................................................................................ 177
Basic BGP configuration tasks......................................................................................................................................177
Prerequisite for configuring a BGP network....................................................................................................... 177
Restrictions..................................................................................................................................................................178
Enabling BGP.............................................................................................................................................................. 178
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Contents