Install Guide

Table Of Contents
Applying Egress Layer 3 ACLs (Control-Plane).................................................................................................. 121
IP Prefix Lists.................................................................................................................................................................... 121
Configuration Task List for Prefix Lists................................................................................................................122
ACL Remarks.................................................................................................................................................................... 125
Configuring a Remark............................................................................................................................................... 125
Deleting a Remark......................................................................................................................................................126
ACL Resequencing.......................................................................................................................................................... 126
Resequencing an ACL or Prefix List...................................................................................................................... 127
Route Maps.......................................................................................................................................................................128
Configuring UDF ACL..................................................................................................................................................... 128
Configuring IP Mirror Access Group........................................................................................................................... 130
Sample Configuration................................................................................................................................................ 131
Example of viewing IP mirroraccessgroup applied to an Interface........................................................... 131
Chapter 8: Bidirectional Forwarding Detection (BFD)................................................................ 132
How BFD Works...............................................................................................................................................................132
BFD Packet Format...................................................................................................................................................133
BFD Sessions.............................................................................................................................................................. 134
BFD Three-Way Handshake.................................................................................................................................... 135
Session State Changes.............................................................................................................................................136
Important Points to Remember....................................................................................................................................136
Configure BFD.................................................................................................................................................................. 136
Configure BFD for Physical Ports.......................................................................................................................... 137
Configure BFD for Static Routes........................................................................................................................... 138
Configure BFD for IPv6 Static Routes................................................................................................................. 142
Configure BFD for OSPF..........................................................................................................................................144
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..................................................................................................................................... 178
Prerequisite for configuring a BGP network....................................................................................................... 178
Restrictions..................................................................................................................................................................178
Enabling BGP.............................................................................................................................................................. 178
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