[cisco-voip] 3845 DSP

Mon Feb 8 09:30:34 EST 2010

my 3945 is out of the box, and i needed to do a 'show voice dsp detailed' to get SP2600 

are they these? 

http://news.thomasnet.com/fullstory/552559 

--- 
Lelio Fulgenzi, B.A. 
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1 
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN) 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
Cooking with unix is easy. You just sed it and forget it. 
- LFJ (with apologies to Mr. Popeil) 

----- Original Message ----- 
From: "Jason Shearer" <jshearer at amedisys.com> 
To: "Mark Holloway" <mh at markholloway.com> 
Cc: "Lelio Fulgenzi" <lelio at uoguelph.ca>, cisco-voip at puck.nether.net 
Sent: Monday, February 8, 2010 7:30:47 AM GMT -05:00 US/Canada Eastern 
Subject: RE: [cisco-voip] 3845 DSP 

Interesting. I’ll see what info I can squeeze out of my account team. Definitely looks like a completely different architecture. Can someone that is running a PVDM3 get us a ‘show voice dsp’ to see what the chipset is? 

Jason 

From: Mark Holloway [mailto:mh at markholloway.com] 
Sent: Sunday, February 07, 2010 10:15 PM 
To: Jason Shearer 
Cc: Lelio Fulgenzi; cisco-voip at puck.nether.net 
Subject: Re: [cisco-voip] 3845 DSP 

Unfortunately the product specification for the PVDM2 and PVDM3 are listed in two totally different formats. The PVDM2 product spec is very forthcoming in stating the PVDM2 uses Texas Instruments DSP and runs at either 200mhz or 175mhz. The specification for PVDM3 doesn't state what type of DSP is used or the clock cycles. It only says "Multicore DSP technology" - so I don't think Cisco wants to share that information right now. It's possible that once someone gets their hands on one they will know more information. 

It's not easy to find details about video and the PVDM3. Perhaps video conference mixing? The following is the closest thing I could find. "Video feature ready" 

On Feb 7, 2010, at 6:15 AM, Jason Shearer wrote: 

The PVDM2-64 and PVDM3-64 are the same price ($3200 list) although you can get them in much denser versions. Has anyone run into any problems or flakiness with the v3’s? Are they running the same 5510 chipset? 

One thing that is interesting is that it says it is a “voice and video” DSP. What does this mean? Is it going to be able to transcode or mix video? 

Jason 

From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Mark Holloway 
Sent: Saturday, February 06, 2010 11:32 AM 
To: Lelio Fulgenzi 
Cc: cisco-voip at puck.nether.net 
Subject: Re: [cisco-voip] 3845 DSP 

The new PVDM3 modules are great. They are more expensive than PVDM2 of course, but they serve their purpose well. 

Conferencing, Transcoding, and Transrating Services 

The PVDM3 modules support digital voice connections, analog voice connections, conferencing, and universal transcoding services. The same DSPs on the PVDM3 modules can now support all the services with a single DSP image. In addition, the PVDM3 supports a higher number of conference sessions and a higher number of participants per conference than the PVDM2. The PVDM3-256 can support up to 6 conferences with 64 participants in each conference and up to 66 conferences with 8 participants in each conference. 

<image001.png> 

On Feb 5, 2010, at 5:27 PM, Lelio Fulgenzi wrote: 

I believe you can configure only one software bridge per server, or in retrospect you can configure a server as a software bridge only once. 

I believe it takes some serious resources to run as a software bridge so you don't want to be doing it on your publisher or any subscribers that are close to capacity. If you have a standalone DHCP/TFTP server in your design, you should be able to get away with using that. 

A software bridge does not have the hardware limitations w/ number of conference participants or number of conferences, but the system will just die if it can't keep up. 

I haven't done a cost analysis, but I still think it would be cheaper to buy a small router with lots of DSPs and use that than to install and maintain CCM box. 

--- 
Lelio Fulgenzi, B.A. 
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1 
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN) 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
Cooking with unix is easy. You just sed it and forget it. 
- LFJ (with apologies to Mr. Popeil) 

----- Original Message ----- 
From: "Robert Shearrill" < rshearri at uchicago.edu > 
To: cisco-voip at puck.nether.net 
Sent: Friday, February 5, 2010 6:22:21 PM GMT -05:00 US/Canada Eastern 
Subject: [cisco-voip] 3845 DSP 

Can some one tell me if i remove all my hardware conf bridges, how many software conf bridges will i have and how are they used. I am version 7.1.2 CCUM. 

How many software conf bridges do i have per server? 

Thanks 

Robert 

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