Configuring stub routers ··························································································································· 74
Enabling message logging ······················································································································· 77
Enabling OSPF ISPF ······························································································································· 79
Configuring OSPF FRR ··································································································································· 79
Configuring BFD for OSPF ······························································································································ 82
OSPF configuration examples ························································································································· 84
Configuring OSPF DR election ················································································································ 96
Configuring route filtering ······················································································································· 103
Configuring OSPF FRR ·························································································································· 106
Configuring BFD for OSPF ····················································································································· 108
Incorrect routing information ·················································································································· 111
Configuring IS-IS ························································································· 112
Overview ························································································································································ 112
Terminology ··········································································································································· 112
Address format ······································································································································· 112
NET ························································································································································ 113
IS-IS area ··············································································································································· 114
Network types ········································································································································ 115
PDUs ······················································································································································ 116
Supported features ································································································································· 122
Protocols and standards ························································································································ 124
IS-IS configuration task list ···························································································································· 125
Configuration prerequisites ···················································································································· 126
Enabling IS-IS ········································································································································ 126
Configuration prerequisites ···················································································································· 127
Configuring IS-IS link cost ······················································································································ 127
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