Re: 10GE router resource

Actually, soon this will no longer be true. Vyatta's new
platform,
Glendale, will be moving to Quagga.  Quagga is much more
stable, and
slow-moving compared to Xorp, which makes me slightly more
comfortable
(less breakage between versions). There are some major
features lacking
inside of the platform. For example, it lacks the ability to
do BFD, BGP
over IPSec, Multicast, etc... This major lack of features
makes this a
hard to deploy piece of software. I am sure with enough
customers Vyatta
would be able to catch up to Cisco. Also, from a viewpoint
of hardware,
x86 is a fairly decent platform. I can stuff 40 (4x10GigE
multiplex with
a switch) 1 GigE ports in it. Though, the way that Linux
works, it
cannot handle high packet rates. If you are planning on
handling large
flows with mostly large packets, you are alright for the
most part. Just
be warned.


Peter Wohlers wrote:
>
> Paul Vixie wrote:
>> michael.dillonbt.com writes:
>>
>>> People rolling their own router are not the
only ones who
>>> want to do 10G on Linux.
>>
>> speaking of which, has anybody run "xorp"
in production?  it looks as
>> much
>> like JunOS as quagga/zebra looks like IOS.  if
"click" works on current
>> hardware and if the xorp/click integration is good,
this could be a
>> great
>> science fair project for smaller network operators
who need big PPS.
>
> Vyatta is built on top of xorp. You can download the
bootable iso from
> their site and take a low-commitment look:
> http://www.v
yatta.com/download/index.php
>
> --Peter


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Sargun Dhillon
deCarta
sdhillondecarta.com
www.decarta.com

On Wed, Mar 26, 2008 at 4:26 PM, Sargun Dhillon
<sdhillondecarta.com> wrote:
>  from a viewpoint of hardware,
>  x86 is a fairly decent platform. I can stuff 40
(4x10GigE multiplex with
>  a switch) 1 GigE ports in it. Though, the way that
Linux works, it
>  cannot handle high packet rates.

Correction: The way DRAM works, it cannot handle high packet
rates.
Also note that the PCI-X bus tops out in the 7 to 8 gbps
range and
it's half-duplex.

High-rate routers try to keep the packets in an SRAM queue
and instead
of looking up destinations in a DRAM-based radix tree, they
use a
special memory device called a TCAM.

http://ww
w.pagiamtzis.com/cam/camintro.html

Regards.
Bill Herrin


-- 
William D. Herrin ................ herrindirtside.com billherrin.us
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