DSP Resources Allocation

[Akash Sharma]

HI All

Thanks in advance !!!!!

I have PVDM3-64 configured in one of my site. 

Two Dspfarm Profiles are configured in that site for Transcoder and Conferencing.

In Transcoder we have defined value for maximum sessions as 4 and in conferencing its 2.

I Just want to know how can I calculate if I can add more sessions for Transcoders depending upon the current scenario .

Please find below the configuration part for your reference and Could you please make me understand the following thing ?

PVDM Details 

NAME: "PVDM3 DSP DIMM with 64 Channels on Slot 0 SubSlot 4", DESCR: "PVDM3 DSP DIMM with 64 Channels"
PID: PVDM3-64 

The configuration is like this :

dsp 1:
  State: UP, firmware: 32.1.4
  Max signal/voice channel: 32/32
  Max credits: 480, Voice credits: 330, Video credits: 150
  num_of_sig_chnls_allocated: 22
  Transcoding channels allocated: 0
  Group: FLEX_GROUP_VOICE, complexity: FLEX
    Shared credits: 270, reserved credits: 0
    Signaling channels allocated: 22
    Voice channels allocated: 4
    Credits used (rounded-up): 60
    Voice channels:
      Ch02: voice port: 0/0/0:15.31, codec: g711ulaw, credits allocated: 15
      Ch03: voice port: 0/0/0:15.23, codec: g711ulaw, credits allocated: 15
      Ch04: voice port: 0/0/0:15.9, codec: g711ulaw, credits allocated: 15
      Ch05: voice port: 0/0/0:15.24, codec: g711ulaw, credits allocated: 15
  Slot: 0
  Device idx: 0
  PVDM Slot: 0
  Dsp Type: SP2600

Now, according to the configuration :

Shared credits: 270, reserved credits: 0

Credits used (rounded-up): 60

Does it mean I still can use 210 credits ?

Regards

Aakash

[Chris Deren · Accepted solution]

You can use DSP calculator available on Cisco.com

also, this is explained in SRND and here is a great document put together by Deji couple of years ago:

https://supportforums.cisco.com/document/123126/cisco-pvdm2-and-pvdm3-dsp-creditmips-allocation

[Akash Sharma]

Thanks Chris !!!!

[Chris Deren]

no problem, if you do not have further questions please mark this thread as answered.

[Akash Sharma]

I do have some more questions about the same, but Its ok. I will try to find out more.

Thanks for your reply !!!! :)

Regards