Install Guide

Table Of Contents
Configuration Task List for Prefix Lists................................................................................................................ 119
ACL Remarks.................................................................................................................................................................... 122
Configuring a Remark............................................................................................................................................... 123
Deleting a Remark......................................................................................................................................................123
ACL Resequencing.......................................................................................................................................................... 124
Resequencing an ACL or Prefix List......................................................................................................................124
Route Maps.......................................................................................................................................................................125
Logging of ACL Processes............................................................................................................................................ 126
Guidelines for Configuring ACL Logging.............................................................................................................. 126
Configuring ACL Logging......................................................................................................................................... 127
Flow-Based Monitoring.................................................................................................................................................. 127
Enabling Flow-Based Monitoring........................................................................................................................... 129
Configuring UDF ACL..................................................................................................................................................... 130
Configuring IP Mirror Access Group........................................................................................................................... 132
Sample Configuration................................................................................................................................................133
Example of viewing IP mirroraccessgroup applied to an Interface.......................................................... 133
Chapter 8: Bidirectional Forwarding Detection (BFD)................................................................ 134
How BFD Works...............................................................................................................................................................134
BFD Packet Format...................................................................................................................................................135
BFD Sessions.............................................................................................................................................................. 136
BFD Three-Way Handshake.................................................................................................................................... 137
Session State Changes.............................................................................................................................................138
Important Points to Remember....................................................................................................................................138
Configure BFD.................................................................................................................................................................. 138
Configure BFD for Physical Ports..........................................................................................................................139
Configure BFD for Static Routes........................................................................................................................... 140
Configure BFD for IPv6 Static Routes................................................................................................................. 144
Configure BFD for OSPF......................................................................................................................................... 146
Configure BFD for OSPFv3......................................................................................................................................151
Configure BFD for IS-IS........................................................................................................................................... 153
Configure BFD for BGP............................................................................................................................................155
Configure BFD for VRRP......................................................................................................................................... 162
Configuring Protocol Liveness................................................................................................................................164
Chapter 9: Border Gateway Protocol (BGP)............................................................................... 165
BGP IP version 4 (BGPv4) Overview......................................................................................................................... 165
BGP Autonomous Systems..................................................................................................................................... 165
AS4 Number Representation...................................................................................................................................167
Four-Byte AS Numbers............................................................................................................................................ 169
BGP router ID............................................................................................................................................................. 169
Sessions and Peers....................................................................................................................................................169
Establish a Session.................................................................................................................................................... 169
BGP Attributes for selecting Best Path............................................................................................................... 170
Multiprotocol BGP..................................................................................................................................................... 175
BGP global and address family configuration......................................................................................................176
Implement BGP with Dell EMC Networking OS..................................................................................................177
Configuration Information........................................................................................................................................180
Basic BGP configuration tasks...................................................................................................................................... 181
6
Contents