vi
Configuring the interval for sending updates for the same route ··································································· 225
Enabling BGP to establish an EBGP session over multiple hops ···································································· 225
Enabling immediate reestablishment of direct EBGP connections upon link failure····································· 226
Enabling 4-byte AS number suppression ·········································································································· 227
Enabling MD5 authentication for BGP peers ··································································································· 227
Configuring BGP load balancing ······················································································································ 228
Configuring IPsec for IPv6 BGP ························································································································· 229
Disabling BGP to establish a session to a peer or peer group ······································································ 230
Configuring BGP soft-reset·································································································································· 230
Protecting an EBGP peer when memory usage reaches level 2 threshold ···················································· 234
Configuring a large-scale BGP network ···················································································································· 235
Configuring BGP community ······························································································································ 235
Configuring BGP route reflection ······················································································································· 237
Configuring a BGP confederation ····················································································································· 239
Configuring BGP GR ··················································································································································· 240
Enabling SNMP notifications for BGP························································································································ 241
Enabling logging of session state changes ··············································································································· 241
Configuring BFD for BGP ············································································································································ 242
Configuring 6PE ··························································································································································· 243
Configuring basic 6PE ········································································································································ 243
Configuring optional 6PE capabilities ·············································································································· 244
Displaying and maintaining BGP ······························································································································· 245
IPv4 BGP configuration examples ······························································································································ 248
Basic BGP configuration example ····················································································································· 248
BGP and IGP route redistribution configuration example ··············································································· 252
BGP route summarization configuration example ··························································································· 255
BGP load balancing configuration example ···································································································· 258
BGP community configuration example ············································································································ 261
BGP route reflector configuration example······································································································· 264
BGP confederation configuration example ······································································································· 267
BGP path selection configuration example······································································································· 271
BGP GR configuration example ························································································································· 274
BFD for BGP configuration example ················································································································· 276
IPv6 BGP configuration examples ······························································································································ 279
IPv6 BGP basic configuration example ············································································································· 279
IPv6 BGP route reflector configuration example ······························································································ 282
6PE configuration example ································································································································ 285
BFD for IPv6 BGP configuration example ········································································································· 288
IPsec for IPv6 BGP packets configuration example ························································································· 291
Troubleshooting BGP ··················································································································································· 295
Symptom ······························································································································································· 295
Analysis ································································································································································ 296
Solution ································································································································································· 296
Configuring PBR ······················································································································································ 297
Introduction to PBR ······················································································································································· 297
Policy ···································································································································································· 297
PBR and Track ······················································································································································ 299
PBR configuration task list ··········································································································································· 299
Configuring a policy ···················································································································································· 300
Creating a node ·················································································································································· 300
Configuring match criteria for a node ·············································································································· 300
Configuring actions for a node ·························································································································· 300
Configuring PBR ··························································································································································· 302
Configuring local PBR ········································································································································· 302
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