[98472] in North American Network Operators' Group
Re: too many variables
daemon@ATHENA.MIT.EDU (Steve Atkins)
Thu Aug 9 16:55:57 2007
In-Reply-To: <46BB6682.9020200@ukbroadband.com>
From: Steve Atkins <steve@blighty.com>
Date: Thu, 9 Aug 2007 13:54:59 -0700
To: nanog@nanog.org
Errors-To: owner-nanog@merit.edu
On Aug 9, 2007, at 12:09 PM, Leigh Porter wrote:
>
>
> Yes a very big unless. Multi-core processors are already available
> that would make very large BGP convergence possible. Change the
> algorithm as well and perhaps add some multi-threading to it and
> it's even better.
Anyone have a decent pointer to something that covers the
current state of the art in algorithms and (silicon) router
architecture, and maybe an analysis that shows the reasoning
to get from those to realistic estimates of routing table size limits?
Cheers,
Steve
>
>
> --
> Leigh Porter
>
>
> Patrick Giagnocavo wrote:
>>
>>
>> On Aug 9, 2007, at 12:21 PM, bmanning@vacation.karoshi.com wrote:
>>
>>> so putting a stake in the ground, BGP will stop working @ around
>>> 2,500,000 routes - can't converge... regardless of IPv4 or
>>> IPv6.
>>> unless the CPU's change or the convergence algorithm changes.
>>
>> That is a pretty big "unless" .
>>
>> Cordially
>>
>> Patrick Giagnocavo
>> patrick@zill.net
>>
>>
