|
Thread Index [isp-bgp] Re: isp-bgp digest: March 31, 2004
On Tue, 6 Apr 2004, Dean Anderson wrote:
> > For 5k, buy two different pieces of equipment:
> > 1. Any 48 port switch that supports vlans
> > 2. Cisco 7500 series router with an RSP4
> >
> > You can find deals cheaper than that, but if you care about reliability,
> > you might not want to go there :)
>
> It depends on how much bandwidth you have, and how much you are willing to
> build. You can easily put together a linux box with Quagga or Zebra, and
> about that many ports for fairly short money. Especially if you have
> mostly 100Meg ports. I've seen linux boxes handle a few 100Meg cards at
> pretty much full speed. PCI-X is fast.
I use custom linux firewall and it definetely handles 100mb. I even have
setup with trunk port to the router to handle multiple vlans and trunk
port out and with Tulip (DEC21142 based) ethernet card that handles
hardware fast switching.
As you can guess I'm pretty big linux fan on and know what the software
and hardware can do and that said I do not think linux is good as core
bgp router for ipv4 for situation that may possibly require more then
100mb. The problem is that except few specialty cards all switching is
done on cpu level (and definetely only on cpu level with bgp L3 routing)
and relies heavily on pci bus and the best support of majority of network
cards is PCI33 which lets just say has limitations especially considering
that majority of pc motherboards have "shared" pci bus too (even if it has
on-board 100mb port this is actually going to shared pci bus).
Additionally BGP support with cisco is LOT better both implementation and
documentation then with zebra. And if you're planning on doing peering in
the future you'll also find that your peers don't like anything but cisco
or juniper hardware.
So if I would follow original advise given and go with 75xx hardware
or possibly 72xx. Both are pretty iexpensive and can be upgraded to
handle up to Gb of traffic.
P.S. However if you're planning on doing IPv6, using pc router with zebra
is not bad, both traffic is not large right now and ipv6 support in PCs
and with linux seems at level with cisco.
--
William Leibzon
Elan Networks
william@...
To unsubscribe via postal mail, please contact us at:
Jupitermedia Corp.
Attn: Discussion List Management
475 Park Avenue South
New York, NY 10016
Please include the email address which you have been contacted with.
------------------------ANNOUNCEMENT---------------------------------
---------------------------------------------------------------------
- ISPCON Spring 2004 - Washington DC Hilton & Towers -
- The ISP and WISP event - www.ispcon.com -
- Fill your brain. Meet the people. Join the industry gathering! -
----------------------------------------------------------------------
----------------------------------------------------------------------
Thread Index |
|
