D-Link DGS-6600-48TS Configuration Guide - Page 225
Route Summarization Across OSPF Areas, not-advertise, Command, Explanation
View all D-Link DGS-6600-48TS manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 225 highlights
Volume 4-Layer 3 Configurations / Chapter 23-Open Shortest Path First (OSPF) Use the following command to configure an OSPF virtual link: OSPF Configuration Commands Command area AREA-ID virtual-link ROUTER-ID [authentication message-digest | null] [hello-interval SECONDS] [dead-interval SECONDS] [transmit-delay SECONDS] [retransmit-interval SECONDS] [[authentication-key PASSWORD]| [[message-digest-key KEY-ID md5 KEY]] Explanation Configures a virtual link between two backbone areas that are physically separated through a non-backbone area. In the following example, the user establishes a virtual link in area 2 with a hello-interval of 5 seconds and a dead-interval of 10 seconds, specifies that the authentication password will be a simple password, and specifies that the simple password will be "V1rPa55": dgs-6600:2>enable dgs-6600:15#configure terminal dgs-6600:15(config)#router ospf dgs-6600:15(config-router)#area 2 virtual-link 10.10.11.50 hello-interval 5 dgs-6600:15(config-router)#area 2 virtual-link 10.10.11.50 dead-interval 10 dgs-6600:15(config-router)#area 2 virtual-link 10.10.11.50 authentication dgs-6600:15(config-router)#area 2 virtual-link 10.10.11.50 authentication-key V1rPa55 dgs-6600:15(config-router)#end Route Summarization Across OSPF Areas The user can configure the area border router to summarize the intra-area routes. Routes that are covered by the summary route will be suppressed. This summarization reduces the number of propagated inter-area routes. The user can also use the not-advertise option to hide specific routes or summary routes from being advertised across areas. Use the following command in OSPF router configuration mode to configure route summarization across OSPF areas: Command area AREA-ID range PREFIX/PREFIX-LENGTH [advertise | not-advertise][cost COST] Explanation Configures route summarization across OSPF areas. In the following example, the user configures the Switch to advertise one summary route for the network prefix 192.168.0.0/16, specifies that a Type 3 summary link advertisement should be generated, and assigns a cost value of 1000 for the summary route of area 1: dgs-6600:2>enable dgs-6600:15#configure terminal dgs-6600:15(config)#router ospf dgs-6600:15(config-router)#area 1 range 192.168.0.0/16 advertise cost 1000 dgs-6600:15(config-router)#end DGS-6600 Configuration Guide 225