Cisco ASR 9000 Series Routing Configuration Guide

Configuring the MED Metric for BGP
Perform this task to set the multi exit discriminator (MED) to advertise to peers for routes that do not already
have a metric set (routes that were received with no MED attribute).
SUMMARY STEPS
1.
configure
2.
router bgp as-number
3.
default-metric value
4.
commit
DETAILED STEPS
PurposeCommand or Action
configure
Step 1
Specifies the autonomous system number and enters the BGP
configuration mode, allowing you to configure the BGP routing
process.
router bgp as-number
Example:
RP/0/RSP0/CPU0:router(config)# router bgp
120
Step 2
Sets the default metric, which is used to set the MED to advertise
to peers for routes that do not already have a metric set (routes
that were received with no MED attribute).
default-metric value
Example:
RP/0/RSP0/CPU0:router(config-bgp)# default
metric 10
Step 3
commit
Step 4
Configuring BGP Weights
Perform this task to assign a weight to routes received from a neighbor. A weight is a number that you can
assign to a path so that you can control the best-path selection process. If you have particular neighbors that
you want to prefer for most of your traffic, you can use the weight command to assign a higher weight to all
routes learned from that neighbor.
Before You Begin
The clear bgp command must be used for the newly configured weight to take effect.Note
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
86
Implementing BGP
Configuring the MED Metric for BGP

Cisco ASR 9000 Series Specifications

General

Brand	Cisco
Model	ASR 9000 Series
Category	Network Router
Language	English