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Implementing BGP on Cisco IOS XR Software
How to Implement BGP on Cisco IOS XR Software
RC-29
Cisco IOS XR Routing Configuration Guide
Restrictions
If the neighbor is configured as an external BGP (eBGP) peer, you must configure an inbound and
outbound route policy on the neighbor using the route-policy command.
SUMMARY STEPS
1. configure
2. route-policy name
3. end-policy
4. end
or
commit
5. configure
6. router bgp autonomous-system-number
7. bgp router-id {ip-address | interface-type interface-instance}
8. neighbor ip-address
9. remote-as autonomous-system-number
10. address-family {ipv4 unicast | ipv4 multicast | ipv6 unicast | ipv6 multicast}
11. route-policy route-policy-name {in | out}
12. end
or
commit
DETAILED STEPS
Command or Action Purpose
Step 1
configure
Example:
RP/0/RP0/CPU0:router# configure
Enters global configuration mode.
Step 2
route-policy
name
Example:
RP/0/RP0/CPU0:router(config)# route-policy
drop-as-1234
RP/0/RP0/CPU0:router(config-rpl)# if as-path
passes-through '1234' then
RP/0/RP0/CPU0:router(config-rpl)# apply
check-communities
RP/0/RP0/CPU0:router(config-rpl)# else
RP/0/RP0/CPU0:router(config-rpl)# pass
RP/0/RP0/CPU0:router(config-rpl)# endif
(Optional) Defines a route policy named drop-as-1234 and
enters route policy configuration mode.