HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 3 - IP Routing Comma - Page 109
ispf enable
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• Intra-area route • Inter-area route • Type1 External route • Type2 External route An intra-area route is a route in an OSPF area. An inter-area route is between any two OSPF areas. Both of them are internal routes. An external route is a route to a destination outside the OSPF AS. A Type-1 external route has high reliability. Its cost is comparable with the cost of OSPF internal routes. The cost from an OSPF router to a Type-1 external route's destination equals the cost from the router to the ASBR plus the cost from the ASBR to the external route's destination. A Type-2 external route has low credibility, so OSPF considers the cost from the ASBR to a Type-2 external route is much bigger than the cost from the ASBR to an OSPF internal router. The cost from an internal router to a Type-2 external route's destination equals the cost from the ASBR to the Type-2 external route's destination. The import-route command cannot redistribute default routes. Use the import-route bgp allow-ibgp command with care, because it redistributes both EBGP and IBGP routes that may cause routing loops. Only active routes can be redistributed. Use the display ip routing-table protocol command to display route state information. The undo import-route protocol all-processes command cancels the configuration made by the import-route protocol all-processes command, rather than the import-route protocol process-id command. Related commands: default-route-advertise. Examples # Redistribute routes from RIP process 40 and specify the type, tag, and cost as 2, 33 and 50 for redistributed routes. system-view [Sysname] ospf 100 [Sysname-ospf-100] import-route rip 40 type 2 tag 33 cost 50 ispf enable Syntax ispf enable View undo ispf enable OSPF view Default level 2: System level Parameters None 98