[cisco-voip] Maximum number of T1 on 3845

Tue Aug 26 23:39:23 EDT 2008

Not sure what do you mean by "support". Again, Cisco has tested with 540
calls, albeit no compression, so it seems in terms of raw performance it is
all there. If you are aware of other issues I would love to hear, before we
deploy them out there.

I am not trying to teach anything, especially not math. Just relaying some
info I have that seems to be relevant to the question.

  _____  

From: Voice Noob [mailto:voicenoob at gmail.com] 
Sent: Tuesday, August 26, 2008 10:55 PM
To: Mordechai
Cc: Matthew Saskin; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Maximum number of T1 on 3845

Thanks for the math lesson but there is a big diffrence between port density
and being able to support that many PRI's. Good luck. 

On Tue, Aug 26, 2008 at 5:23 PM, Mordechai <m.rabinovich at nves.ca> wrote:

8 * VWIC-2MFT

4 * NM-HDV2-2T1/E1

According to Cisco this configuration supporting up to 540 calls was
internally tested (75% cpu util)

  _____  

From: Voice Noob [mailto:voicenoob at gmail.com] 
Sent: Tuesday, August 26, 2008 5:54 PM
To: Mordechai
Cc: Matthew Saskin; cisco-voip at puck.nether.net 

Subject: Re: [cisco-voip] Maximum number of T1 on 3845

No they don't. Where in the world did you get that from????

On Tue, Aug 26, 2008 at 4:47 PM, Mordechai <m.rabinovich at nves.ca> wrote:

3845 supports at least 16, more likely 24 pris if I remember right. We chose
them over 6509e with CMM blades because they provided appropriate density
and a newer voip platform.

-----Original Message-----
From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Matthew Saskin
Sent: Tuesday, August 26, 2008 3:25 PM
To: Voice Noob
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Maximum number of T1 on 3845

For one particular client I've got a series of 8 x 3845's with 12 PRI's
+ 230 configured xcoding sessions per device and no cpu/memory issues to
speak of.  Nominal CPU utilization is around 35% with peaks of about 50%
during peak call times.

-matt

Voice Noob wrote:
>
> I think that device will support 12 or 14 PRI's. Don't remember off hand.
> On Tue, Aug 26, 2008 at 11:20 AM, Aman Chugh <aman.chugh at gmail.com
> <mailto:aman.chugh at gmail.com>> wrote:
>
>
>     Just wanted to know if I can have 8 T1 pri terminate on Cisco 3845 ,
>     any one already doing the same , any caveats that I need to be aware
>     of , apart from the AS5300/5400 , what are my other options to
>     terminate 8 T1 on a single router, I am putting in 6 PVDM2-64 to
>     support this configuration.
>
>
>     Aman
>
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