Cannot Allocate DSP to IOS Conference Bridge

dneggers1 · ‎05-05-2010

Hi There,

We have a Cisco 2811 (IOS Version 12.4(24)T2)

We have the following cards installed :

1 x PVDM2 - 8

1 x PVDM2 - 16

1 x VWIC2-1MFT-T1/E1

We have an E1 with 10 Voice Channels

I am trying to allocate a Conference Bridge, but I cannot put in the command "Max Sessions" it only gives me options of "0".

This is my E1 & confernce config -

card type e1 0 2

controller E1 0/2/0
pri-group timeslots 1-10,16

network-clock-participate wic 2

network-clock-select 1 E1 0/2/0

sccp ccm group 999
description Hardware_Resources
bind interface FastEthernet0/0.501
associate ccm 2 priority 1
associate ccm 1 priority 2
associate ccm 3 priority 3
associate profile 11 register CFB_ECNEWCASTLE

dspfarm profile 11 conference
codec g711ulaw
codec g711alaw
associate application SCCP

(Here I cant put the "Maximum Sessions" command in)
shutdown

ECDIISRNewcastle#sh voice dsp group all
DSP groups on slot 0:
dsp 1:
State: UP, firmware: 24.3.2
Max signal/voice channel: 16/16
Max credits: 240
num_of_sig_chnls_allocated: 2
Transcoding channels allocated: 0
Group: FLEX_GROUP_VOICE, complexity: FLEX
    Shared credits: 240, reserved credits: 0
    Signaling channels allocated: 2
    Voice channels allocated: 0
    Credits used: 0

dsp 5:
State: UP, firmware: 24.3.2
Max signal/voice channel: 8/8
Max credits: 160
num_of_sig_chnls_allocated: 8
Transcoding channels allocated: 0
Group: FLEX_GROUP_VOICE, complexity: FLEX
    Shared credits: 160, reserved credits: 0
    Signaling channels allocated: 8
    Voice channels allocated: 0
    Credits used: 0

DSP groups on slot 1:
This command is not applicable to slot 1

DSP groups on slot 2:
This command is not applicable to slot 2

0 DSP resource allocation failure

ECDIISRNewcastle#sh voice dsp

DSP DSP DSPWARE CURR BOOT PAK TX/RX
TYPE NUM CH CODEC VERSION STATE STATE RST AI VOICEPORT TS ABORT PACK COUNT
==== === == ======== ========== ===== ======= === == ========= == ===== ============
edsp 0001 01 g729r8 p 0.1 IDLE 50/0/1.1
edsp 0002 01 g729r8 p 0.1 IDLE 50/0/2.1
edsp 0003 01 g729r8 p 0.1 IDLE 50/0/3.1
edsp 0004 01 g729r8 p 0.1 IDLE 50/0/4.1
edsp 0005 01 g729r8 p 0.1 IDLE 50/0/5.1
edsp 0006 01 g729r8 p 0.1 IDLE 50/0/6.1
edsp 0007 01 g729r8 p 0.1 IDLE 50/0/7.1
edsp 0008 01 g729r8 p 0.1 IDLE 50/0/8.1
edsp 0009 01 g729r8 p 0.1 IDLE 50/0/9.1
edsp 0010 01 g729r8 p 0.1 IDLE 50/0/10.1

----------------------------FLEX VOICE CARD 0 ------------------------------
*DSP VOICE CHANNELS*

CURR STATE : (busy)inuse (b-out)busy out (bpend)busyout pending
LEGEND : (bad)bad (shut)shutdown (dpend)download pending

DSP   DSP                 DSPWARE CURR BOOT                         PAK   TX/RX
TYPE NUM CH CODEC        VERSION STATE STATE   RST AI VOICEPORT TS ABRT PACK COUNT
===== === == ========= ========== ===== ======= === == ========= == ==== ============
                           *DSP SIGNALING CHANNELS*
DSP   DSP                 DSPWARE CURR BOOT                         PAK   TX/RX
TYPE NUM CH CODEC        VERSION STATE STATE   RST AI VOICEPORT TS ABRT PACK COUNT
===== === == ========= ========== ===== ======= === == ========= == ==== ============
------------------------END OF FLEX VOICE CARD 0 ----------------------------

Jaime Valencia · ‎05-05-2010

You need a full DSP (or half DSP in your case) for that, and due to the allocation you don't have one available.

You're using the full half DSP

Max signal/voice channel: 8/8
Max credits: 160
num_of_sig_chnls_allocated: 8

and 2 channels from the DSP

Max signal/voice channel: 16/16
Max credits: 240
num_of_sig_chnls_allocated: 2

You would need to remove the whole config for the E1 so the DSPs are available, configure the CFB and then reconfigure the E1.

All you get is the half DSP for conference, you cannot use the full DSP as you wouldn't have 10 channels for the E1.

HTH

java

if this helps, please rate

www.cisco.com/go/pdihelpdesk

HTH

java

if this helps, please rate

dneggers1 · ‎05-05-2010

Hi Java,

I understand that,

Why cant the Conference Bridge use any of the remaining 14 Channels?

Does it matter what slot they are in?

Jaime Valencia · ‎05-06-2010

Because it needs to load the FW to perform that function, so you need the WHOLE DSP. Meaning either the full 16 channels from the DSP or the full 8 channels from your half DSP.

Those 14 channels can be used only for voice termination or XCODER because the same FW is used, the CFB FW is different so it only can perform conference functions.

HTH

java

If this helps, please rate

www.cisco.com/go/pdihelpdesk

HTH

java

if this helps, please rate

dneggers1 · ‎05-06-2010

Cool, thanks mate, that makes sense..

Dion