[98476] in North American Network Operators' Group
Re: too many variables
daemon@ATHENA.MIT.EDU (Patrick Giagnocavo)
Thu Aug 9 17:29:36 2007
In-Reply-To: <6083BED1-25CB-4865-B00F-BE95A354723D@cisco.com>
Cc: Leigh Porter <leigh.porter@ukbroadband.com>, nanog@nanog.org
From: Patrick Giagnocavo <patrick@zill.net>
Date: Thu, 9 Aug 2007 17:14:35 -0400
To: Tony Li <tli@cisco.com>
Errors-To: owner-nanog@merit.edu
On Aug 9, 2007, at 3:47 PM, Tony Li wrote:
>
> 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.
>
>
> Not necessarily. BGP convergence is strongly dependent on memory
> bandwidth and multiple cores do not increase that.
>
> Tony
Sun just released the T2 chip, claimed 60GB/s memory bandwidth, on-
board 10GbE interface etc.
Pricing under $1000 for an 8-core chip with 64 "threads".
Cordially
Patrick Giagnocavo
patrick@zill.net
