There is an option in 120ST to upgrade to the bgp
address family syntax. The command to perform this
is 'bgp upgrade-cli' under the bgp process. Here
is an example:

The BGP portion of the existing configuration in
12.0(15)S is:

router bgp 50
 neighbor 2.1.1.1 remote-as 1239 nlri unicast multicast
 neighbor 2.1.1.2 remote-as 1239 nlri multicast
 distance mbgp 3 3 3

The router is then reloaded with 12.0(18)ST, and upon 
bootup, the configuration remains the same. If we wanted
the address family syntax, you add:

ip22-75a(config)#router bgp 50
ip22-75a(config-router)#bgp upgrade-cli
You are about to upgrade to the AFI syntax of bgp commands

Are you sure ? [yes]: 

ip22-75a(config-router)#end
ip22-75a#sh running
Building configuration...

!
router bgp 50
 bgp log-neighbor-changes
 neighbor 2.1.1.1 remote-as 1239
 neighbor 2.1.1.2 remote-as 1239
 !
 address-family ipv4
 neighbor 2.1.1.1 activate
 no neighbor 2.1.1.2 activate
 exit-address-family
 !
 address-family ipv4 multicast
 neighbor 2.1.1.1 activate
 neighbor 2.1.1.2 activate
 distance bgp 3 3 3
 exit-address-family
!

But the configuration in nvram remains as nlri syntax:

ip22-75a#sh config

!
router bgp 50
 neighbor 2.1.1.1 remote-as 1239 nlri unicast multicast
 neighbor 2.1.1.2 remote-as 1239 nlri multicast
 distance mbgp 3 3 3
!

So if you like the newer address family syntax, you will
need to write the new configuration to memory.



last update 10/9/2001 mmcbride

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