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Home > Archive > Voice over IP Cisco > January 2007 > dsp calculator and optimized vs normal results
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dsp calculator and optimized vs normal results
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| Lelio Fulgenzi 2007-01-28, 1:11 pm |
| anyone have any comments with respect to the dsp calculator results and what the difference between optimized vs normal results is?
what's the difference?
--------------------------------------------------------------------------------
Lelio Fulgenzi, B.A. Network Analyst (CCS)
University of Guelph Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Sanity First : Number of days with less than
50 messages in my inbox at the end of the day: buffer overrun
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| Patrick Diener 2007-01-28, 1:11 pm |
| compare the "CLI info" given by the DSP Calculator
the optimized result uses the "codec complexity flex" on the voice-card
the normal result uses either "medium" or "high" for the codec
complexity depending on the codec you like to use the DSP for.
difference between flex, medium and high:
http://www.cisco.com/en/US/products....html#wp1044681
On 1/28/07, Lelio Fulgenzi <lelio@uoguelph.ca> wrote:
>
>
> anyone have any comments with respect to the dsp calculator results and what
> the difference between optimized vs normal results is?
>
> what's the difference?
>
> --------------------------------------------------------------------------------
> Lelio Fulgenzi, B.A. Network Analyst (CCS)
> university of Guelph Guelph, Ontario N1G 2W1
> (519) 824-4120 x56354 (519) 767-1060 FAX
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> Sanity First : Number of days with less than
> 50 messages in my inbox at the end of the day: buffer overrun
> ________________________________________
_______
> cisco-voip mailing list
> cisco-voip@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
>
>
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| Lelio Fulgenzi 2007-01-28, 7:11 pm |
| Thanks. I was aware of the CLI difference, but not what they actually meant.
I'll read up on that, but suspect because I'm only using G711 that I'll be OK using the flex calculations.
----- Original Message -----
From: Patrick Diener
To: cisco-voip@puck.nether.net
Sent: Sunday, January 28, 2007 2:08 PM
Subject: Re: [cisco-voip] dsp calculator and optimized vs normal results
compare the "CLI info" given by the DSP Calculator
the optimized result uses the "codec complexity flex" on the voice-card
the normal result uses either "medium" or "high" for the codec
complexity depending on the codec you like to use the DSP for.
difference between flex, medium and high:
http://www.cisco.com/en/US/products....html#wp1044681
On 1/28/07, Lelio Fulgenzi <lelio@uoguelph.ca> wrote:
>
>
> anyone have any comments with respect to the dsp calculator results and what
> the difference between optimized vs normal results is?
>
> what's the difference?
>
> --------------------------------------------------------------------------------
> Lelio Fulgenzi, B.A. Network Analyst (CCS)
> university of Guelph Guelph, Ontario N1G 2W1
> (519) 824-4120 x56354 (519) 767-1060 FAX
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> Sanity First : Number of days with less than
> 50 messages in my inbox at the end of the day: buffer overrun
> ________________________________________
_______
> cisco-voip mailing list
> cisco-voip@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
>
>
________________________________________
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cisco-voip mailing list
cisco-voip@puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-voip
| |
| Robert Kulagowski 2007-01-31, 1:11 pm |
| More questions on the DSP calculator:
Given a 3845 router, 24 ports of FXS on EVM, 8 ports of FXO and 6 PRIs,
what's the best combination to achieve this? If you just do everything
"straight", I think you run out of DSPs on the router.
However, if you do NM-HDV2s (which have their own DSPs and can do 2 PRIs
onboard + have a daughter card for VWIC2-2MFT-T1/E1), it looks like it's
doable.
However, I'm not sure what to fill in for some of these fields.
In NM 1, NM-HDV2-2T1/E1, two onboard T1, and a VWIC2-2MFT-T1/E1, max
calls is 96, which makes sense.
But when I'm filling out that line, I've got G.711 column (which I'm
assuming is low complexity), then G729a (medium) and then G.729b (high?)
Would you put in 48 / 48 for G.711, or are you actually trying to
predict how many of those calls need to traverse a G.729 WAN, so you'd
do something like 36 / 12?
And in that case, what do you do on the next page when it asks about
transcoding sessions?
For conferencing, you're putting in the number of 8-person max
conferences that you'd like to do on the router, right?
HW MTP is only used for SIP trunks, right?
IP SLA I understand.
Thanks, Bob
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