7 bgp bestpath med – CANOGA PERKINS 9175 Command Reference User Manual

Page 250

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CanogaOS Command Reference

16-5

address on the router, with preference given to loopback addresses. Router-id can be manually set by using

the bgp router-id command.

Examples

Switch# configure terminal

Switch(config) router bgp 100

Switch(config-router) bgp bestpath compare-routerid

Related Commands

show ip bgp, show ip bgp neighbors

16.7 bgp bestpath med

Use this command to specify Multi Exit Discriminator (MED) attribute comparison.

Use the no parameter with this command to prevent BGP from considering the MED attribute in comparing

paths.

Command Syntax

bgp bestpath med confed|missing-as-worst

bgp bestpath med missing-as-worst confed

confed Compares MED among confederation paths

missing-as-worst Treats missing MED as the least preferred one

Command Mode

Router mode

Default

MED value is zero.

Usage

Use this command to specify two MED attributes--confed and missing-as-worst. The confed attribute enables

MED comparison among paths learned from confederation peers. The MEDs are compared only if there is no

external autonomous system (an AS not within the confederation) in the path. If there is an external

autonomous system in the path, the MED comparison is not made.

The missing-as-worst attribute to consider a missing MED attribute in a path as having a value of infinity,

making the path without a MED value the least desirable path. If missing-as-worst is disabled, the missing

MED is assigned the value of 0, making the path with the missing MED attribute the best path.

Examples

Switch# configure terminal

Switch(config) router bgp 100

Switch(config-router) bgp bestpath med missing-as-worst

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