Vijay is correct. This is somewhat confusing. After some investigation here's what appears to be the status quo:

1. In "show [ip] bgp summary", specifying "ip" shows only activated for the IPv4 AF. Omitting "ip" shows only peers activated for the IPv6 AF.
2. IPv4 unicast is activated by default for all peers.
3. At some point, we decided this was very confusing, and added a command - "show bgp [afi] [safi]", which would show peers activated for the specific AFI/SAFI combination you were interested in. However, this was added to the existing "show [ip] bgp" command definition, so now we have "show [ip] bgp [afi] [safi]". So you can enter things like "show ip bgp ipv6". What does this mean? Indeterminate.
4. Conclusion: use "show [ip] bgp", OR "show bgp [afi] [safi]". While you can use both, the results are basically undefined, inasmuch as I don't think anyone has actually thought through what that even means and coded for it.

Hope this helps!

On Wed, Aug 5, 2020 at 2:39 PM Erwan David <erwan@rail.eu.org> wrote:
Le 05/08/2020 à 19:10, Vijay Kumar Gupta a écrit :
>
> By default ipv6 nbrs are activated in IPv4 address family , you will
> have to disable them explicitly
>
> “no neighbor xx::xx activate”
>
>  
>
> Thanks,
>
> Vijay
>

Or you can use "no bgp default ipv4-unicast", and activate the ipv4
neighbors in the ipv4 unicast address family.


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