[c-nsp] BGP IPv6 OIDs

[Ryan Rawdon]

On Sep 10, 2011, at 7:12 PM, Jon Lewis wrote:

> On Sat, 10 Sep 2011, Ryan Rawdon wrote:
> 
>> By SNMPwalking our BGP speakers I found this OID which I use for graphing received v6 prefix counts since earlier this year (on a pair of 7206s running 12.4.22)
>> .1.3.6.1.4.1.9.9.187.1.2.4.1.1.[32.1.5.80].2.1
>> 
>> where the part in [ ] somehow identifies the peer - I haven't quite figured out how yet.  Here are some other examples but they are at the same OID aside from the presumed peer identifier (it is not the peer router ID, I can say that much for certain - for example none of the routers below are from 174 but the one above actually is):
> 
> From what I've read, that [32.1.5.80] is the dotted-quad version of the first 32-bits of the 128-bit peer IP...and the kicker is that if you have multiple peers in the same /32, the stats for all of them get merged together.  Are you peering with Cogent or a cogent customer in 2001:550::/32 (if I did the math correctly)?

Yep, my first example was indeed Cogent - I had a feeling it was something like that (first 32 bits), that is a shame that they get merged together ...

> 
> The odd thing is, that's more or less the same OID I use for v4 peer info, but on 12.2(33)SXI, all it shows me is the ipv4 peers.
> 
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