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Forbidding session establishment with a peer or peer group ········································································ 233
Configuring BGP soft-reset·································································································································· 234
Configuring a large scale BGP network ···················································································································· 236
Configuration prerequisites ································································································································ 236
Configuring BGP community ······························································································································ 236
Configuring a BGP route reflector ····················································································································· 237
Configuring a BGP confederation ····················································································································· 237
Configuring BGP GR ··················································································································································· 238
Configuration guidelines ···································································································································· 239
Configuration procedure ···································································································································· 239
Enabling Guard route redistribution ·························································································································· 240
Enabling trap ································································································································································ 240
Enabling logging of session state changes ··············································································································· 240
Configuring BFD for BGP ············································································································································ 241
Displaying and maintaining BGP ······························································································································· 241
Displaying BGP ···················································································································································· 241
Resetting BGP session ········································································································································· 243
Clearing BGP information ·································································································································· 243
BGP configuration examples ······································································································································ 243
Basic BGP configuration ····································································································································· 244
BGP and IGP synchronization configuration ···································································································· 248
BGP load balancing configuration ···················································································································· 250
BGP community configuration ···························································································································· 253
BGP route reflector configuration ······················································································································ 255
BGP confederation configuration ······················································································································ 257
BGP path selection configuration ······················································································································ 260
BGP GR configuration ········································································································································· 264
Configuring BFD for BGP ··································································································································· 265
Troubleshooting BGP ··················································································································································· 269
BGP peer relationship not established ·············································································································· 269
Configuring policy-based routing ·························································································································· 270
Introduction to policy-based routing ··························································································································· 270
What is policy-based routing ····························································································································· 270
Policy ···································································································································································· 270
PBR and Track ······················································································································································ 271
Configuring PBR ··························································································································································· 272
Defining a policy ················································································································································· 272
Configuring local PBR ········································································································································· 273
Configuring interface PBR ·································································································································· 273
Displaying and maintaining PBR configuration ········································································································ 273
PBR configuration examples ········································································································································ 274
Configuring local PBR based on packet type ··································································································· 274
Configuring interface PBR based on packet type ···························································································· 276
Configuring Guard routes ······································································································································ 279
Overview ······································································································································································· 279
Configuring a Guard route ········································································································································· 280
Displaying and maintaining Guard routes ················································································································ 280
Guard route configuration example ··························································································································· 280
Network requirements ········································································································································· 280
Configuration procedure ···································································································································· 281
Configuring IPv6 static routing ······························································································································· 284
Introduction to IPv6 static routing ······························································································································· 284
IPv6 static routes features ··································································································································· 284
