[outages] Godaddy / Premium DNS outage?

[Warren Kumari]

On Sep 11, 2012, at 2:51 PM, Bret Palsson wrote:

> Curious… why did you wonder if they have Brocade routing gear? Wondering what prompted you to ask about that particular brand… Should I be worried about something?

If you run any TCAM based system and take full BGP tables on them, then, yes, you:
A: should be worries and / or 
B: should have started trimming tables to fit in CAM and / or 
C: should have started fiddling with the CAM sizing / layout and / or
D: be chatting with your vendor and checking the CAM size on your line cards.

There is no evidence yet that it was CAM exhaustion vs any of a whole bunch of other failures, but hey, now at least you know to start looking :-P



W


> 
> -Bret
> 
> On Sep 11, 2012, at 12:42 PM, Raman Sud <ramans at phoenixnap.com> wrote:
> 
>> I wonder of they have Brocade for routing gear...anyone has this info
>> 
>> Sent from my Verizon Wireless Droid
>> 
>> 
>> -----Original message-----
>> From: Barry Greene <bgreene at senki.org>
>> To: Colin Johnston <colinj at mx5.org.uk>
>> Cc: Raman Sud <ramans at phoenixnap.com>, "outages at outages.org" <outages at outages.org>
>> Sent: Tue, Sep 11, 2012 18:36:12 GMT+00:00
>> Subject: Re: [outages] Godaddy / Premium DNS outage?
>> 
>> 
>> Speculation - TCAM overload. 
>> 
>> Check out this talk at NANOG 54:
>> 
>> https://www.nanog.org/meetings/nanog54/presentations/Monday/HughesLT.pdf
>> 
>> 
>> 
>> On Sep 11, 2012, at 11:05 AM, Colin Johnston <colinj at mx5.org.uk> wrote:
>> 
>> > 
>> > On 11 Sep 2012, at 18:58, Raman Sud <ramans at phoenixnap.com> wrote:
>> > 
>> >> http://www.godaddy.com/newscenter/release-view.aspx?news_item_id=410
>> >> 
>> >> nice.. this doesn't make sense
>> >> 
>> > 
>> > It does make sense from UK traffic perspective, some AS's worked for queries, some AS's did not get a connection at all.
>> > 
>> > Colin Johnston
>> > 
>> > 
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