SUMMARY STEPS
1.
configure
2.
router bgp as-number
3.
address-family {ipv4|ipv6} {unicast|multicast}
4.
maximum-paths ibgp number
5.
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 100
Step 2
Specifies either the IPv4 or IPv6 address family and
enters address family configuration submode.
address-family {ipv4|ipv6} {unicast|multicast}
Example:
RP/0/RSP0/CPU0:router(config-bgp)# address-family
ipv4 multicast
Step 3
Configures the maximum number of iBGP paths for
load sharing.
maximum-paths ibgp number
Example:
RP/0/RSP0/CPU0:router(config-bgp-af)# maximum-paths
ibgp 30
Step 4
commit
Step 5
Originating Prefixes with AiGP
Perform this task to configure origination of routes with the AiGP metric:
Before You Begin
Origination of routes with the accumulated interior gateway protocol (AiGP) metric is controlled by
configuration. AiGP attributes are attached to redistributed routes that satisfy following conditions:
•
The protocol redistributing the route is enabled for AiGP.
•
The route is an interior gateway protocol (iGP) route redistributed into border gateway protocol (BGP).
The value assigned to the AiGP attribute is the value of iGP next hop to the route or as set by a
route-policy.
•
The route is a static route redistributed into BGP. The value assigned is the value of next hop to the route
or as set by a route-policy.
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.1.x
140 OL-30423-03
Implementing BGP
Originating Prefixes with AiGP
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