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
SUMMARY STEPS
1.
configure
2.
router bgp as-number
3.
neighbor ip-address
4.
remote-as as-number
5.
address-family { ipv4 | ipv6 } unicast
6.
weight weight-value
7.
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
Places the router in neighbor configuration mode for BGP
routing and configures the neighbor IP address as a BGP peer.
neighbor ip-address
Example:
RP/0/RSP0/CPU0:router(config-bgp)# neighbor
172.168.40.24
Step 3
Creates a neighbor and assigns a remote autonomous system
number to it.
remote-as as-number
Example:
RP/0/RSP0/CPU0:router(config-bgp-nbr)#
remote-as 2002
Step 4
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.1.x
OL-30423-03 83
Implementing BGP
Configuring BGP Weights
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