[c-nsp] [Fwd: 7206VXR HW config questions.]

[Daniel Lacey]

[ Resending this to the list. Originally sent yesterday @ 6:00pm. This 
is the second time this has happened.
Not sure if this is a problem on my end... Please advise if I am doing 
something wrong...]

My vendor is trying very hard to get me to purchase an NPE-G1 or G2 
instead of my usual NPE-400....

Background:
This router will be used for SIP VoIP traffic from Ethernet, and 
stuffing it down 1, maybe 2 DS3 circuits.
TDM traffic is aggregated on a phone switch, converted to SIP and output 
on 2 separate Fast Ethernet links.
There are 2 Fast Ethernet links to provide redundancy (not because of 
traffic volume).
The router will convert this to serial DS3. The DS3 circuit(s) will be 
point to point from the router to a SIP gateway.
No other traffic will be coming from the ethernet links. No other 
traffic will be coming from the DS3.
I plan to use the FE on the I/O controller for managment traffic only, 
using separate PA-FE-TX cards for the actual traffic.

I figure I will need:
7206VXR with NPE-400 512Mb, C7200-I/O-FE
(2) PA-FE-TX port adapters
(2) PA-T3 port adapters
The second PA-T3 will be a spare... And used later if more bandwidth is 
needed.

I did some bandwidth calculations as follows:
Left side:
C7200-I/O-FE  200 points (very little traffic, but included as a worse case)
PA-FE-TX      200 points

Right side:
PA-FE-TX      200 points
Two PA-T3     180 points

Both sides will under the 600 point maximum per bus. (Even if I put in a 
total of 4 PA-T3s)

Is there something I am missing? Is this going to be too much for the 
NPE-400? Not enough memory?
I will probably be running a 12.2 IP IOS.

Anybody have a reason why I would need so much horsepower???

Thanks,
Dan