Re: Need a little BGP address-family help

When declared in the "global" area, neighbors are activated in IPv4 by
default.
If you declare the neighbor in the IPv6 AF, it gets "deactivated" in
IPv4. Makes sense ?

Andrew LaPorte @ 11/01/2014 17:09 -0300 dixit:
> Hi,
>
> I'm reviewing my IPv6 BGP I'm trying to understand the difference in these
> two output:
>
> #1
>
> ------------------------------------
>
> router bgp 200
> no synchronization
> bgp router-id 150.1.1.1
> bgp log-neighbor-changes
> neighbor 2001:CC1E:1::3 remote-as 300
> no neighbor 2001:CC1E:1::3 activate
> no auto-summary
> !
> address-family ipv6
> neighbor 2001:CC1E:1::3 activate
> exit-address-family
>
> #2
>
> -------------------------------------
>
> router bgp 200
> no synchronization
> bgp router-id 150.1.1.1
> bgp log-neighbor-changes
> neighbor 2001:CC1E:1::3 remote-as 300
> no auto-summary
> !
> address-family ipv6
> neighbor 2001:CC1E:1::3 activate
> exit-address-family
>
>
>
> #1 was created by just going under the ipv6 address-family and adding a
> neighbor whereas in #2 the neighbor was add under the main process and also
> activated the address-family.
>
> If someone could please help out by explaining what the "no neighbor
> 2001:CC1E:1::3 activate" under #1 in the main BGP process does as I'm a bit
> confused as to what action it performs
>
> Thanks,
>
> AndyL.
>
>
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-- 
Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
Blogs and organic groups at http://www.ccie.net