[14220] in North American Network Operators' Group
RE: Cisco Vip Cards.
daemon@ATHENA.MIT.EDU (Randy Bush)
Wed Dec 10 17:05:28 1997
Date: Wed, 10 Dec 1997 13:50:18 -0800 (PST)
From: Randy Bush <randy@psg.com>
To: Steve Martin <steve@conxion.net>
Cc: north american nominated origin of gossip <nanog@merit.edu>
> We have seen situations under heavy load where a VIP2-40 with an OC3
> running at 80% and a Fast Ethernet PA running at 50% have resulted in
> severe packet loss and latency. After addressing this with our Cisco reps
> (including the Product Manager and Product Engineer for the 7513/VIP
> family) they acknowledged the problem and stated:
>
> "We do not recommend putting any other PA into a VIP2-40 if an OC3-PA is
> already installed. We have seen adverse performance, in the way of latency
> and packet loss, resulting from such a configuration. Customer's choosing
> to do so, do so at their own risk".
This is not equivalent to
>>> Cisco will not support multiple PA's within a VIP2-40.
My memory is that Cisco does not support use of two 'high speed' PAs in a
single VIP2/40.
I also wonder how you got a POS and anything else in a VIP, as the POS is
secured in and uses both holes. Was it ATM-Lite or something kinky?
randy
