>At 12:51 AM 2/29/00 -0500, Nick Bastin wrote:
>>>On Mon, 28 Feb 2000, Nick Bastin wrote:
>>>
>>>> Exactly. The 7206VXR will still outperform a high end linux system,
>>>> because there are other demands on the bandwidth of the PCI bus in your
>>>> linux system. Also, it's worth noting that while Cisco classifies the
>7200
>>>> series in their 'High-End Routers', it's a cheap box intended for
>>>> enterprise work. The newer 7576 can push 4Gbps sustained across the
>>>> chassis, and even the older 7507/7513 can do 2Gbps. I'm not suggesting
>>>> that we'll ever get linux to touch the capabilities of a 12000 (or a
>>>> Juniper M20/M40), but PC hardware issues aside, the kernel ought to be
>able
>>>> to push packets as well as any Cisco 7xxx series router.
>
>
>The first statement is simply not true. The 7206 doesnt have the CPU to
>utilize its supposed additional bus capabilities. A 7206 cant do 2 full T3s
>with bandwidth management and a PC can. Cisco will tell not recommend a
>7206 for this....
A PC may have the theoretical ability to manage 2 T3's if you just look at
CPU numbers, but if you actually stuck two WAN cards in your PC and tried
to find an OS that would route the 90Mbps aggregate, you'd be SOL. You can
kill a linux box with one DS3 WAN card, I wouldn't want to even recommend
using two.
Also, the 7206VXR, with the NPE-300, shouldn't have any trouble pushing
600Mbps across the chassis, and ought to at least approach the gigabit
number that Cisco states. Now, what you do with that 600Mbps determines
how much of it you can actually use, and full policy routing on 2 DS3's
would probably be a bit much, but I'd imagine that a couple of DS3's with a
few ACLs and static routes would be manageable. I don't have a 7206VXR to
play with, so I can't say for sure, but the hardware should speak for
itself.
--
Nick Bastin
Software Developer
OPNET Technologies
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