Setup Guide

Table Of Contents
ACL Remarks..................................................................................................................................................................... 117
Configuring a Remark................................................................................................................................................ 118
Deleting a Remark...................................................................................................................................................... 118
ACL Resequencing........................................................................................................................................................... 119
Resequencing an ACL or Prefix List...................................................................................................................... 119
Route Maps.......................................................................................................................................................................120
Logging of ACL Processes............................................................................................................................................. 121
Guidelines for Configuring ACL Logging............................................................................................................... 121
Configuring ACL Logging......................................................................................................................................... 122
Flow-Based Monitoring.................................................................................................................................................. 122
Enabling Flow-Based Monitoring............................................................................................................................124
Chapter 8: Bidirectional Forwarding Detection (BFD)................................................................ 126
How BFD Works...............................................................................................................................................................126
BFD Packet Format................................................................................................................................................... 127
BFD Sessions.............................................................................................................................................................. 128
BFD Three-Way Handshake.................................................................................................................................... 129
Session State Changes.............................................................................................................................................130
Important Points to Remember....................................................................................................................................130
Configure BFD..................................................................................................................................................................130
Configure BFD for Physical Ports...........................................................................................................................131
Configure BFD for Static Routes........................................................................................................................... 132
Configure BFD for IPv6 Static Routes................................................................................................................. 135
Configure BFD for OSPF..........................................................................................................................................137
Configure BFD for OSPFv3......................................................................................................................................141
Configure BFD for IS-IS........................................................................................................................................... 143
Configure BFD for BGP............................................................................................................................................145
Configure BFD for VRRP......................................................................................................................................... 152
Configuring Protocol Liveness................................................................................................................................154
Chapter 9: Border Gateway Protocol (BGP)............................................................................... 155
Border Gateway Protocol version 4 (BGPv4).......................................................................................................... 155
Autonomous Systems (AS)..................................................................................................................................... 155
AS4 Number Representation...................................................................................................................................157
Four-Byte AS Numbers............................................................................................................................................ 159
BGP router ID............................................................................................................................................................. 159
Sessions and Peers....................................................................................................................................................159
Establish a Session.................................................................................................................................................... 159
BGP Attributes for selecting Best Path............................................................................................................... 160
Multiprotocol BGP..................................................................................................................................................... 165
Implementing BGP global and address family..................................................................................................... 166
Implement BGP with Dell EMC Networking OS................................................................................................. 167
Configuration Information........................................................................................................................................170
Configuring a basic BGP network.................................................................................................................................171
Prerequisite for configuring a BGP network........................................................................................................ 171
Restrictions.................................................................................................................................................................. 171
Enabling BGP............................................................................................................................................................... 171
Enabling four-byte autonomous system numbers..............................................................................................173
Changing a BGP router ID........................................................................................................................................174
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