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ospf [2015/04/21 07:44]
admin
ospf [2015/04/21 07:45] (текущий)
admin [Summary]
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   * OSPF-speaking routers must have a router ID (RID) for proper operation. By default, routers will choose an interface IP address to use as the RID. However, many network engineers prefer to choose each router’s router ID, so that reading command output from commands like show ip ospf neighbor lists more recognizable router IDs.   * OSPF-speaking routers must have a router ID (RID) for proper operation. By default, routers will choose an interface IP address to use as the RID. However, many network engineers prefer to choose each router’s router ID, so that reading command output from commands like show ip ospf neighbor lists more recognizable router IDs.
-430  +  ​* To find its RID, a Cisco router uses the following process when the router reloads and brings up the OSPF process. Note that when one of these steps identifies the RID, the process stops.
-  ​* To find its RID, a Cisco router uses the following process when the router reloads and brings +
-up the OSPF process. Note that when one of these steps identifies the RID, the process +
-stops.+
   * If the router-id rid OSPF subcommand is configured, this value is used as the RID.   * If the router-id rid OSPF subcommand is configured, this value is used as the RID.
   * If any loopback interfaces have an IP address configured and the interface has an interface status of up, the router picks the highest numeric IP address among these loopback interfaces.   * If any loopback interfaces have an IP address configured and the interface has an interface status of up, the router picks the highest numeric IP address among these loopback interfaces.
   * The router picks the highest numeric IP address from all other interfaces whose interface status code (first status code) is up. (In other words, an interface in up/down state will be included by OSPF when choosing its router ID.)   * The router picks the highest numeric IP address from all other interfaces whose interface status code (first status code) is up. (In other words, an interface in up/down state will be included by OSPF when choosing its router ID.)
ospf.txt · Последние изменения: 2015/04/21 07:45 — admin