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Basic IS-IS configuration ····································································································································· 167
DIS election configuration ·································································································································· 172
Configuring IS-IS route redistribution ················································································································ 176
IS-IS Graceful Restart configuration example ··································································································· 179
IS-IS NSR configuration example ······················································································································· 181
IS-IS FRR configuration example ························································································································ 183
IS-IS authentication configuration example······································································································· 185
Configuring BFD for IS-IS ···································································································································· 188
Configuring BGP ····················································································································································· 192
Overview ······································································································································································· 192
BGP speaker and BGP peer ······························································································································· 192
BGP message types ············································································································································· 192
BGP path attributes ············································································································································· 193
BGP route selection ············································································································································· 197
BGP route advertisement rules ··························································································································· 197
BGP load balancing ············································································································································ 197
Settlements for problems in large-scale BGP networks ···················································································· 199
MP-BGP ································································································································································· 202
BGP configuration views ···································································································································· 202
Protocols and standards ····································································································································· 204
BGP configuration task list ·········································································································································· 204
Configuring basic BGP ················································································································································ 206
Enabling BGP ······················································································································································· 206
Configuring a BGP peer ····································································································································· 207
Configuring a BGP peer group ·························································································································· 208
Specifying the source interface for TCP connections ······················································································· 211
Controlling route generation ······································································································································· 212
Configuration prerequisites ································································································································ 212
Injecting a local network ···································································································································· 212
Redistributing IGP routes····································································································································· 212
Controlling route distribution and reception ············································································································· 213
Configuring BGP route summarization ············································································································· 213
Advertising a default route to a peer or peer group ······················································································· 214
Configuring BGP route distribution/reception filtering policies ····································································· 214
Enabling BGP and IGP route synchronization ································································································· 217
Limiting prefixes received from a peer or peer group ····················································································· 218
Ignoring the ORIGINATOR_ID attribute of BGP routes ··················································································· 219
Configuring BGP route dampening ··················································································································· 219
Controlling BGP path selection ··································································································································· 220
Specifying a preferred value for routes received ····························································································· 220
Configuring preferences for BGP routes ··········································································································· 220
Configure the default local preference ············································································································· 221
Configuring the MED attribute ··························································································································· 221
Configuring the NEXT_HOP attribute ················································································································ 224
Configuring the AS_PATH attribute ··················································································································· 226
Tuning and optimizing BGP networks ························································································································ 228
Configuring the BGP keepalive interval and holdtime ···················································································· 228
Configuring the interval for sending the same update ···················································································· 229
Allowing establishment of EBGP connection to an indirectly connected peer or peer group····················· 230
Enabling the BGP ORF capability······················································································································ 230
Enabling 4-byte AS number suppression ·········································································································· 231
Enabling quick reestablishment of direct EBGP session ·················································································· 232
Enabling MD5 authentication for TCP connections ························································································· 232
Configuring BGP load balancing ······················································································································ 233
