[cisco-voip] PVDMs, DSP farms, et al.... next steps?

Nick Matthews matthnick at gmail.com
Thu Apr 26 10:28:18 EDT 2012 

Take the simplest example - PVDM3-16 on a partial PRI.

The 16 channels will be allocated to the PRIs, but as soon as one of those
calls is G.729 you won't be able to get 16 calls through.

I haven't played with the allocation on the PVDM3's as much as in the back
end it's a lot more complex than the 2's.

-nick

On Thu, Apr 26, 2012 at 12:31 AM, Anthony Holloway <
avholloway+cisco-voip at gmail.com> wrote:

> Nick,
>
> Could you clarify your point of being able to over provision here?  From
> my experience, as you add sessions to one service, it dynamically reduces
> the available sessions on the other services.
>
> I.e., If you do a ? on sessions for transcoding, it might say <1-40>.  But
> if you go and add a few more conferencing sessions first, and come back, it
> will be lower.  Say <1-32>.  I'm making these numbers up, but the fact
> remains, the maximum number you can type in, is limited by the available
> resources at config time.
>
> Thanks for sharing.  I look forward to your response.
>
> Anthony Holloway
>
> On Wed, Apr 25, 2012 at 11:05 PM, Nick Matthews <matthnick at gmail.com>wrote:
>
>> You can still overprovision.
>>
>> Examples:
>> -In the PVDM3's conferences are not reserved upon configuration.
>> -You are locking up G.711 (low complexity) codec, not a high complexity
>> codec
>> -Transcoding sessions are not locked upon configuration
>> -Video transcoding/switching sessions are not locked
>>
>> So if you're using non G711 codecs, transcoding, conferencing, MTPs, or
>> video, you can overprovision.  If all you're doing is G711 termination to
>> POTS/PRI I don't think you can.
>>
>> -nick
>>
>> On Wed, Apr 25, 2012 at 11:26 AM, Lelio Fulgenzi <lelio at uoguelph.ca>wrote:
>>
>>> cool! thanks.
>>>
>>> ---
>>> Lelio Fulgenzi, B.A.
>>> Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
>>> (519) 824-4120 x56354 (519) 767-1060 FAX (ANNU)
>>> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>> Cooking with unix is easy. You just sed it and forget it.
>>>                               - LFJ (with apologies to Mr. Popeil)
>>>
>>>
>>> ------------------------------
>>> *From: *"Ted Nugent" <tednugent73 at gmail.com>
>>> *To: *"Lelio Fulgenzi" <lelio at uoguelph.ca>
>>> *Cc: *"Erick Wellnitz" <ewellnitzvoip at gmail.com>, "cisco-voip voyp
>>> list" <cisco-voip at puck.nether.net>
>>> *Sent: *Wednesday, April 25, 2012 11:04:12 AM
>>>
>>> *Subject: *Re: [cisco-voip] PVDMs, DSP farms, et al.... next steps?
>>>
>>> Once you build the channels on the controller "pri-group timeslots 1-24"
>>> the DSP resources are locked, FXS and FXO lock on bootup.
>>>
>>> I think that command you're looking at will show you what you want, you
>>> can see the transcoding towards the bottom
>>>
>>>
>>> PS-RTRPSTN-01#show dsp-group all
>>> DSP groups on slot 0:
>>> dsp 1:
>>>   State: UP, firmware: 28.3.3
>>>   Max signal/voice channel: 43/43
>>>   Max credits: 645, Voice credits: 645, Video credits: 0
>>>   num_of_sig_chnls_allocated: 43
>>>   Transcoding channels allocated: 0
>>>   Group: FLEX_GROUP_VOICE, complexity: FLEX
>>>     Shared credits: 645, reserved credits: 0
>>>     Signaling channels allocated: 43
>>>     Voice channels allocated: 0
>>>     Credits used (rounded-up): 0
>>>   Slot: 0
>>>   Device idx: 0
>>>   PVDM Slot: 0
>>>   Dsp Type: SP2600
>>>
>>> dsp 2:
>>>   State: UP, firmware: 28.3.3
>>>   Max signal/voice channel: 43/43
>>>   Max credits: 645, Voice credits: 645, Video credits: 0
>>>   num_of_sig_chnls_allocated: 43
>>>   Transcoding channels allocated: 0
>>>   Group: FLEX_GROUP_VOICE, complexity: FLEX
>>>     Shared credits: 645, reserved credits: 0
>>>     Signaling channels allocated: 43
>>>     Voice channels allocated: 0
>>>     Credits used (rounded-up): 0
>>>   Slot: 0
>>>   Device idx: 0
>>>   PVDM Slot: 0
>>>   Dsp Type: SP2600
>>>
>>> dsp 3:
>>>   State: UP, firmware: 28.3.3
>>>   Max signal/voice channel: 42/43
>>>   Max credits: 645, Voice credits: 645, Video credits: 0
>>>   num_of_sig_chnls_allocated: 42
>>>   Transcoding channels allocated: 0
>>>   Group: FLEX_GROUP_VOICE, complexity: FLEX
>>>     Shared credits: 645, reserved credits: 0
>>>     Signaling channels allocated: 42
>>>     Voice channels allocated: 0
>>>     Credits used (rounded-up): 0
>>>   Slot: 0
>>>   Device idx: 0
>>>   PVDM Slot: 0
>>>   Dsp Type: SP2600
>>>
>>> dsp 4:
>>>   State: UP, firmware: 28.3.3
>>>   Max signal/voice channel: 43/43
>>>   Max credits: 645, Voice credits: 645, Video credits: 0
>>>   num_of_sig_chnls_allocated: 43
>>>   Transcoding channels allocated: 0
>>>   Group: FLEX_GROUP_VOICE, complexity: FLEX
>>>     Shared credits: 645, reserved credits: 0
>>>     Signaling channels allocated: 43
>>>     Voice channels allocated: 0
>>>     Credits used (rounded-up): 0
>>>   Slot: 0
>>>   Device idx: 1
>>>   PVDM Slot: 0
>>>   Dsp Type: SP2600
>>>
>>> dsp 5:
>>>   State: UP, firmware: 28.3.3
>>>   Max signal/voice channel: 43/43
>>>   Max credits: 645, Voice credits: 645, Video credits: 0
>>>   num_of_sig_chnls_allocated: 13
>>>   Transcoding channels allocated: 22
>>>   Group: FLEX_GROUP_VOICE, complexity: FLEX
>>>     Shared credits: 201, reserved credits: 0
>>>     Signaling channels allocated: 13
>>>     Voice channels allocated: 0
>>>     Credits used (rounded-up): 0
>>>   Group: FLEX_GROUP_XCODE, complexity: MEDIUM
>>>     Shared credits: 0, reserved credits: 444
>>>     Transcoding channels allocated: 0
>>>     Credits used (rounded-up): 0
>>>   Slot: 0
>>>   Device idx: 1
>>>   PVDM Slot: 0
>>>   Dsp Type: SP2600
>>>
>>> dsp 6:
>>>   State: UP, firmware: 28.3.3
>>>   Max signal/voice channel: 42/43
>>>   Max credits: 645, Voice credits: 645, Video credits: 0
>>>   num_of_sig_chnls_allocated: 0
>>>   Transcoding channels allocated: 28
>>>   Group: FLEX_GROUP_VOICE, complexity: FLEX
>>>     Shared credits: 80, reserved credits: 0
>>>     Signaling channels allocated: 0
>>>     Voice channels allocated: 0
>>>     Credits used (rounded-up): 0
>>>   Group: FLEX_GROUP_XCODE, complexity: MEDIUM
>>>     Shared credits: 0, reserved credits: 565
>>>     Transcoding channels allocated: 0
>>>     Credits used (rounded-up): 0
>>>   Slot: 0
>>>   Device idx: 1
>>>   PVDM Slot: 0
>>>   Dsp Type: SP2600
>>>
>>>
>>>
>>> _______________________________________________
>>> cisco-voip mailing list
>>> cisco-voip at puck.nether.net
>>> https://puck.nether.net/mailman/listinfo/cisco-voip
>>>
>>>
>>
>> _______________________________________________
>> cisco-voip mailing list
>> cisco-voip at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/cisco-voip
>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://puck.nether.net/pipermail/cisco-voip/attachments/20120426/7e9e50c3/attachment.html>

More information about the cisco-voip mailing list