09-02-2010 11:04 PM - edited 03-16-2019 12:36 AM
I've recently installed a PVDM2-32 module into my 2821 Router and i cannot seem to get more than 8 conference participants on a DSP.
I have a profile configured as such:
dspfarm profile 3 conference
description "Conference Farm"
codec g711ulaw
maximum sessions 4
associate application SCCP
I've also increased the parameter "Maximum MeetMe Conference Unicast" on my call manager 5.1 from 4 to 32.
When 8 participants are in the conference, the "show dspfarm all" gives me output like this:
SLOT DSP VERSION STATUS CHNL USE TYPE RSC_ID BRIDGE_ID PKTS_TXED PKTS_RXED
0 6 1.1.1 UP 1 USED conf 2 33 6067 8958
0 6 1.1.1 UP 1 USED conf 2 34 6067 6059
0 6 1.1.1 UP 1 USED conf 2 35 4584 4577
0 6 1.1.1 UP 1 USED conf 2 36 4173 4166
0 6 1.1.1 UP 1 USED conf 2 37 3979 3972
0 6 1.1.1 UP 1 USED conf 2 38 3399 3393
0 6 1.1.1 UP 1 USED conf 2 39 2944 2936
0 6 1.1.1 UP 1 USED conf 2 40 2633 2624
Solved! Go to Solution.
09-05-2010 07:48 PM
The config example shows you define the maximum number of participants in 1st place and then codec.
It's worth trying it that way
To configure the maximum number of conference participants allowed in each meet-me conference, use the maximum conference-participants command in DSP farm profile configuration mode. To reset the maximum to the default number, use the no form of this command.
maximum conference-participants max-participants
no maximum conference-participants max-participants
The default maximum number of participants is 8.
DSP farm profile configuration (config-dspfarm-profile)
Release | Modification |
---|---|
12.4(11)XJ2 | This command was introduced. |
12.4(15)T | This command was integrated into Cisco IOS Release 12.4(15)T. |
The maximum number of participants allowed for hardware conferencing is dependent on the codec used in the DSP farm profile. Use the codec command in DSP farm profile configuration mode to specify the codecs supported by the DSP farm profile. Use the show dspfarm profile command to display the DSP farm profile.
The following example configures a DSP farm profile that has a maximum of 16 participants for hardware conferences using the G.711 codec:
Router(config)# dspfarm profile conference1
Router(config-dspfarm-profile)# maximum conference-participants 16
Router(config-dspfarm-profile)# codec g711alaw
HTH
java
If this helps, please rate
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09-03-2010 12:02 AM
According to Cisco Unified Communications Manager System Guide, maximum number of participants per conference equals 8, when you are using DSP resources hosted on PVDM2 modules.http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/6_1_1/ccmsys/a05dsp.html#wp1036250
For more participants use WS-X4604-GWY, WS-6608-T1, WS-6608-E1 or PVDM3 modules.
09-03-2010 01:00 AM
I just wondered why I could use more than 8 in software but not more than 8 in hardware.
This link seems to suggest otherwise but cannot confirm
http://www.voiceie.com/cgi-bin/ultimatebb.cgi?ubb=print_topic;f=8;t=002420
"PVDM2-16 - Conferencing
- IOS 12.4(15)T has new capability for 32 participants per conference. G711 must be only codec in dspfarm profile. Use the maximum conference-participants 8, 16 or 32 command."
By the way I don't see where it states a PVDM2 can support only 8 participants. I'm not using NM-HD-1V/2V or NM-HDV2, just 2x PVDM2-32 modules directly in a 2821.
09-03-2010 01:48 AM
I think, this limit is set in the firmware of the DSP. Although, I have found the source for your quote. The source is 7.X SRND:
http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/8x/media.html#wp1046210
A conference based on these DSPs allows a maximum of 8 participants. When a conference begins, all 8 positions are reserved at that time. Starting with Cisco IOS Release 12.4(15)T, this limit on the maximum number of participants has been increased to 32.
09-03-2010 06:50 AM
Also make sure that the CM Service Parameter for 'Maximum MeetMe Conference Unicast' is set to something higher than 8.
09-03-2010 07:05 AM
Hi Linden,
Just to jump in here for a moment
Can you try decreasing the parameter;
maximum sessions 4
to maximum sessions 2
to see the relationship/reservation between max sessions and max participants.
Cheers!
Rob
09-05-2010 02:57 AM
Appreciate all the responses.
I have the MeetMe CM service parameter already set at 32.
I actually started with maximum sessions 2 and then changed it to 4. Either configuration still only allows 8 participants. (I also thought there might be a maximum participants setting, but it doesn't seem like it)
I'm running the latest IOS version 12.4.25d(MD) for the 2821.
09-05-2010 11:14 AM
Session = how many conferences you can have, not the numbers of users in the conference.
You already posted the command to configure the maximum number of participants, the config you posted doesn't have it.
Have you already applied it??
HTH
java
if this helps, please rate
www.cisco.com/go/pdihelpdesk
09-05-2010 04:29 PM
I don't seem to have a "maximum participants" command when configuring a dspfarm profile?
Thanks
09-05-2010 07:48 PM
The config example shows you define the maximum number of participants in 1st place and then codec.
It's worth trying it that way
To configure the maximum number of conference participants allowed in each meet-me conference, use the maximum conference-participants command in DSP farm profile configuration mode. To reset the maximum to the default number, use the no form of this command.
maximum conference-participants max-participants
no maximum conference-participants max-participants
The default maximum number of participants is 8.
DSP farm profile configuration (config-dspfarm-profile)
Release | Modification |
---|---|
12.4(11)XJ2 | This command was introduced. |
12.4(15)T | This command was integrated into Cisco IOS Release 12.4(15)T. |
The maximum number of participants allowed for hardware conferencing is dependent on the codec used in the DSP farm profile. Use the codec command in DSP farm profile configuration mode to specify the codecs supported by the DSP farm profile. Use the show dspfarm profile command to display the DSP farm profile.
The following example configures a DSP farm profile that has a maximum of 16 participants for hardware conferences using the G.711 codec:
Router(config)# dspfarm profile conference1
Router(config-dspfarm-profile)# maximum conference-participants 16
Router(config-dspfarm-profile)# codec g711alaw
HTH
java
If this helps, please rate
www.cisco.com/go/pdihelpdesk
09-06-2010 03:05 PM
Thanks for all the help, turns out the IOS version I was running didn't support the maximum conference-participants command.
Switched to 12.4(24)T3 and everything now works as expected!
Cheers
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