Cisco NCS 5500 Series Configuration Manual page 25

Implementing BGP
SUMMARY STEPS
1. configure
2. router bgp as-number
3. address-family { ipv4 | ipv6 } unicast
4. network { ip-address / prefix-length | ip-address mask } backdoor
5. commit
DETAILED STEPS
Step 1 configure
Step 2
router bgp as-number
Example:
RP/0/RP0/CPU0:router(config)# router bgp 120
Specifies the autonomous system number and enters the BGP configuration mode, allowing you to configure the BGP
routing process.
Step 3 address-family { ipv4 | ipv6 } unicast
Example:
RP/0/RP0/CPU0:router(config-bgp)# address-family ipv4 unicast
Specifies either the IPv4 or IPv6 address family and enters address family configuration submode.
To see a list of all the possible keywords and arguments for this command, use the CLI help (?).
Step 4 network { ip-address / prefix-length | ip-address mask } backdoor
Example:
RP/0/RP0/CPU0:router(config-bgp-af)# network 172.20.0.0/16
Configures the local router to originate and advertise the specified network.
Step 5
commit
BGP Configuration Guide for Cisco NCS 5500 Series Routers, IOS XR Release 6.2.x
Indicate BGP Back-door Routes
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