[c-nsp] Cisco 10G gear

Simon Lockhart simon at slimey.org
Sat Jan 17 05:54:40 EST 2015

On Sat Jan 17, 2015 at 11:57:21AM +0200, Chris Knipe wrote:
> > Depends on your total traffic requirements. SUP720 + 6704 + 6748-GE-TX
> > (+ 6724-SFP if I need fibre) is still my work-horse of choice for a Cisco
> > switch offering both 10G and 1G ports. On the used market, these blades are
> > available very cheaply.
> This is what I really like (and hoped) to hear.  Considering we're
> currently peaking at 1.2Gbps / 1.5Gbps, a ~10X increase in
> capacity/throughput seems like a winner then.  Granted (as I
> understand it), from a layer III point of view this configuration
> would be significantly under spec'ed to provide what it is supposed
> to, but on a layer II level it seems (to me at least) that it would be
> able to deliver a -significant- upgrade to what we currently can
> deliver on our infrastructure...

I'm doing L3 on my 6500's, so I do use the 3BXL to be able to hold a full 
Internet routing table. There's little difference between L2 and L3 performance
on the 6500.

We're now upgrading to the Sup2T and 69xx cards to give us higher 10G port
> The 25-30Gbps you are seeing - is this across one line card, or across
> the entire chassis?  Just trying to get an idea of what two or three
> 4-Port 10GE cards would do.

That's per 6704 card. In aggregate, we were probably doing close to 100Gbps
of traffic through a 6509 chassis, but only because traffic was flowing over
it several times.


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