[Nanog] Cogent Router dropping packets
mhernand1 at comcast.net
Tue Apr 22 12:43:07 UTC 2008
Well it had sounded like I was in the minority and should keep my mouth
shut. But here goes. On several occasions the peer that would advertise
our routes would drop and with that the peer with the full bgp tables
would drop as well. This happened for months on end. They tried blaming
our 6500, our fiber provider, our IOS version, no conclusive findings
where ever found that it was our problem. After some testing at the
local Cogent office by both Cogent and myself, Cogent decided that they
could "make a product" that would allow us too one have only one peer
and two to connect directly to the GSR and not through a small catalyst.
Low and behold things worked well for some time after that.
This all happened while we had 3 other providers on the same router
with no issues at all. We moved gbics, ports etc around to make sure it
was not some odd ASIC or throughput issue with the 6500.
Hope this answers the question.
Paul Wall wrote:
> On Mon, Apr 21, 2008 at 4:02 PM, manolo <mhernand1 at comcast.net> wrote:
>> I do have to say that the PSI net side of cogent is very good. We use
>> them in Europe without many issues. I stay far away from the legacy
>> cogent network in US.
> You still haven't explained the failure modes you've experienced as a
> result of cogent's A/B peer configuration, only fronted.
> Inquiring minds would like to know!
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