H3C Technologies H3C S12500-X Series Switches User Manual
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Configuring routing domain authentication ······································································································ 147
Configuring IS-IS GR ···················································································································································· 148
Configuring BFD for IS-IS············································································································································· 149
Configuring IS-IS FRR ··················································································································································· 149
Configuration prerequisites ································································································································ 150
Configuration guidelines ···································································································································· 150
Configuring IS-IS FRR to automatically calculate a backup next hop ···························································· 150
Configuring IS-IS FRR using a routing policy ···································································································· 150
Displaying and maintaining IS-IS ······························································································································· 151
IS-IS configuration examples ······································································································································· 152
Basic IS-IS configuration example ····················································································································· 152
DIS election configuration example ··················································································································· 157
IS-IS route redistribution configuration example ······························································································ 161
IS-IS authentication configuration example······································································································· 164
IS-IS GR configuration example ························································································································· 167
BFD for IS-IS configuration example ·················································································································· 168
IS-IS FRR configuration example ························································································································ 171
Configuring BGP ····················································································································································· 174
Overview ······································································································································································· 174
BGP speaker and BGP peer ······························································································································· 174
BGP message types ············································································································································· 174
BGP path attributes ············································································································································· 175
BGP route selection ············································································································································· 179
BGP route advertisement rules ··························································································································· 179
BGP load balancing ············································································································································ 179
Settlements for problems in large-scale BGP networks ···················································································· 180
MP-BGP ································································································································································· 183
BGP configuration views ···································································································································· 184
Protocols and standards ····································································································································· 185
BGP configuration task list ·········································································································································· 186
Configuring basic BGP ················································································································································ 188
Enabling BGP ······················································································································································· 188
Configuring a BGP peer ····································································································································· 189
Configuring a BGP peer group ·························································································································· 190
Specifying the source interface for TCP connections ······················································································· 196
Generating BGP routes ················································································································································ 197
Injecting a local network ···································································································································· 197
Redistributing IGP routes····································································································································· 198
Controlling route distribution and reception ············································································································· 199
Configuring BGP route summarization ············································································································· 199
Advertising optimal routes in the IP routing table ···························································································· 201
Advertising a default route to a peer or peer group ······················································································· 201
Limiting routes received from a peer or peer group ························································································ 202
Configuring BGP route filtering policies ··········································································································· 203
Configuring BGP route dampening ··················································································································· 208
Controlling BGP path selection ··································································································································· 209
Specifying a preferred value for routes received ····························································································· 209
Configuring preferences for BGP routes ··········································································································· 210
Configuring the default local preference ·········································································································· 211
Configuring the MED attribute ··························································································································· 212
Configuring the NEXT_HOP attribute ················································································································ 216
Configuring the AS_PATH attribute ··················································································································· 218
Tuning and optimizing BGP networks ························································································································ 223
Configuring the keepalive interval and hold time ···························································································· 223