Exam 642-883 Question id=3423 OSPFv2 and OSPFv3 Routing in Service Provider Environments

What is function of the RP/0/RSP0/CPU0:PE1(config-ospf)#distance Cisco IOS-XR command?

A. To modify the administrative distance of the OSPF routes
B. To modify the default seed metric of the OSPF external routes
C. To modify the OSPF default reference bandwidth
D. To modify the OSPF cost

distance (OSPF)
To define an administrative distance, use the distance command in the appropriate mode.
To remove the distance command from the configuration file and restore the system to its
default condition in which the softw are removes a distance definition, use the no form of this command.

distance weight [ip-address wildcard-mask [access-list-name]]

no distance weight ip-address wildcard-mask [access-list-name]

Syntax Description:

weight - Administrative distance. Range is 10 to 255. Used alone, the weight argument specifies a default administrative distance that the software uses when no other specification exists for a routing information source. Routes with a distance of 255 are not installed in the routing table.

ip-address - (Optional) IP address in four-part, dotted-decimal notation.

wildcard-mask - (Optional) Wildcard mask in four-part, dotted decimal format. A bit set to I in the mask argument instructs the software to ignore the corresponding bit in the address value.

access-list-name - (Optional) Name of an IP access list to be applied to incoming routing updates.



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