NTAC Peering Working Group

[Bill Owens <>]

On Fri, Jan 04, 2013 at 04:37:43PM -0500, Bill Owens wrote:
> There was a short but very useful discussion of today's BGP problems taking 
> place on the wg-multicast list, based on my initial (and incorrect) 
> impression that the issue had something to do with multicast; Michael 
> Lambert suggested that I bring the thread here instead.

Two things:

 - I forgot to attach the graphs.

 - Dale Finkelson pointed out that there's no peering connection between 
Internet2 and NLR (which I should have remembered, duh) and no obvious way 
that the routes leaking from NLR could get to I2 and then to NYSERNet. I 
wasn't driving the router consoles during the actual problem, one of the 
other engineers was; I remembered him seeing a high prefix count on our 
Internet2 BGP session in NYC, but I don't have any direct evidence of whether 
and how much the I2 peering jumped up. It's possible that we were impacted 
purely by our NLR peering, and I2 wasn't involved at all. Hopefully someone 
from the NOC can straighten that out.

Also, NLR has another maintenance scheduled for Sunday morning. . .

Bill.

Attachment: NLR_BGP_count.png
Description: PNG image

Attachment: NYSERNet_BGP_count.png
Description: PNG image