H3C Technologies H3C S12500-X Series Switches User Manual
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OSPF NSSA area configuration example ········································································································ 106
OSPF DR election configuration example ········································································································· 108
OSPF virtual link configuration example ··········································································································· 112
OSPF GR configuration example ······················································································································· 114
BFD for OSPF configuration example ··············································································································· 116
OSPF FRR configuration example ······················································································································ 119
Troubleshooting OSPF configuration ························································································································· 121
No OSPF neighbor relationship established ···································································································· 121
Incorrect routing information ······························································································································ 122
Configuring IS-IS ····················································································································································· 123
Overview ······································································································································································· 123
Terminology ························································································································································· 123
IS-IS address format ············································································································································· 123
NET ······································································································································································· 124
IS-IS area ······························································································································································ 125
IS-IS network types ·············································································································································· 127
IS-IS PDUs ····························································································································································· 128
Protocols and standards ····································································································································· 129
IS-IS configuration task list ··········································································································································· 130
Configuring basic IS-IS ················································································································································ 131
Configuration prerequisites ································································································································ 131
Enabling IS-IS ······················································································································································· 131
Configuring the IS level and circuit level ·········································································································· 131
Configuring P2P network type for an interface ································································································ 132
Configuring IS-IS route control ···································································································································· 132
Configuration prerequisites ································································································································ 132
Configuring IS-IS link cost ··································································································································· 133
Specifying a preference for IS-IS ······················································································································· 134
Configuring the maximum number of ECMP routes ························································································ 134
Configuring IS-IS route summarization ·············································································································· 135
Advertising a default route ································································································································· 135
Configuring IS-IS route redistribution ················································································································ 136
Configuring IS-IS route filtering ·························································································································· 136
Configuring IS-IS route leaking ·························································································································· 137
Tuning and optimizing IS-IS networks ························································································································ 137
Configuration prerequisites ································································································································ 137
Specifying the interval for sending IS-IS hello packets ···················································································· 138
Specifying the IS-IS hello multiplier ···················································································································· 138
Specifying the interval for sending IS-IS CSNP packets ·················································································· 138
Configuring a DIS priority for an interface ······································································································· 139
Disabling an interface from sending/receiving IS-IS packets ········································································· 139
Enabling an interface to send small hello packets ··························································································· 139
Configuring LSP parameters ······························································································································· 140
Controlling SPF calculation interval ··················································································································· 142
Configuring convergence priorities for specific routes ···················································································· 143
Setting the LSDB overload bit ····························································································································· 143
Configuring system ID to host name mappings ································································································ 144
Enabling the logging of neighbor state changes ····························································································· 145
Enabling IS-IS ISPF ··············································································································································· 145
Configuring IS-IS network management ············································································································ 146
Enhancing IS-IS network security ································································································································ 146
Configuration prerequisites ································································································································ 147
Configuring neighbor relationship authentication ··························································································· 147
Configuring area authentication ························································································································ 147