> From: Andrew Fort <afort@staff.webcentral.com.au>
> To: "'Bill Woodcock'" <woody@zocalo.net>,
> "Michael K. Smith"
> <mike@wackypackets.com>
> Cc: jlewis@lewis.org, Cisco NSP <cisco-nsp@puck.nether.net>
> Subject: RE: [nsp] Requesting comments on 7401 pricing
> Date: Mon, 9 Jul 2001 17:07:49 +1000
>
> still, i want one of these boxes for terminating an pos circuit :) (bit
> cheaper than a 7206vxr/nse-1, which is good if all you need is one PA slot
> for OC3-POS plus a GigE for the backhaul).
It shines for Gig-E <-> Gig-E applications, none of which are supported
on the lower end stuff and if the implementation is good, if may do
even better then the 7206 console + PA-GE at it.
Other applications are in the aggregation area, terminating ct3's
(50 ds1's + lotsof ds0's in one RU), T3 or OC frame/atm including
switching or interworking.
If the boys at Cisco would release a PA-POS-OC12-SM, kinda thing
then one of these would have a fighting chance of dislodging a
juniper or two. 8-)
> is there a definitive list of what PXF "speeds up"? (and breaks? :)
Sort of. The general rule is that it doesn't speed up anything useful
in the ISP realm, but can do magic in the content provider or firewall
domain where you care what's beyond the packet header. The main focus
seems to be on that and then traffic management.
see: http://www.cisco.com/warp/public/cc/pd/ifaa/prossor/nse1/
Currently it looks like the development train is 12.1E, and with stuff
getting merged into 12.2(4)T when that comes around, there's really
not a lot of stuff in the 12.1E release notes.
We have a couple of 7206VXR/NSE1 that were mostly bought as the
"latest thing" in 7206, just before the <deleted> NPE-400 was
announced. One's working fine, the other started blowing chunks
and is running "no ip pxf", which broke byte counters badly until
updated the latest IOS. No way really to tell whether the PXF is
contributing, I expect it will be a gradual process of adding PXF
code to this area and that, kinda like CEF, but hopefully without
the never-ending swarm of bugs...
Geroge
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