nanog mailing list archives

Re: The IPv6 Travesty that is Cogent's refusal to peer Hurricane Electric - and how to solve it


From: "Matthew D. Hardeman" <mhardeman () ipifony com>
Date: Thu, 21 Jan 2016 12:44:56 -0600

I’m inclined to agree with you, subject to some caveats:

1.  I think more Cogent customers need to be more vocal about it.  There hasn’t been an impetus to do so until 
recently.  Now real people (not network engineer sorts) are starting to use IPv6 for real.

2.  I agree with you in principle.  In an idea world, take HE and two others.  I would however still say that if you 
could only take two, take HE and take something other than Cogent.  It’s a win-win if the experience of single-home 
Cogent customers gets to be worse as a result.  Perhaps having things occasionally break — only for single-home Cogent 
customers — is a benefit.


On Jan 21, 2016, at 12:40 PM, Daniel Corbe <dcorbe () hammerfiber com> wrote:


On Jan 21, 2016, at 1:07 PM, Matthew D. Hardeman <mhardeman () ipifony com> wrote:

Since Cogent is clearly the bad actor here (the burden being Cogent's to prove otherwise because HE is publicly on 
record as saying that they’d love to peer with Cogent), I’m giving serious consideration to dropping Cogent come 
renewal time and utilizing NTT or Zayo instead.

While that would not immediately solve the problem that if the NTT or Zayo link went down, single-homed Cogent 
customers would loose access to me via IPv6, I’m actually ok with that.  It at least lets ensures that when there is 
a problem, the problem affects only single-home Cogent clients.  Thus, the problem is borne exclusively by the 
people who pay the bad actor who is causing this problem.  That tends to get uncomfortable for the payee (i.e. 
Cogent).



Take two transit providers that aren’t in the group of (HE, Cogent).  Cogent is probably banking on this being the 
response; figuring that they have the financial resources to outlast HE if they’re both shedding customers.  

If you really wanted to stick it to Cogent, take 3 transit providers: HE and two of any other providers besides 
Cogent.  

Cogent clearly aren’t going to cave to their own customers asking them to peer with HE.  Otherwise it would have 
happened by now.  

Cogent sucks for lots of reasons and this one isn’t even in the top 5 IMHO.




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