% Not enough DSP resources available

[fernandodonadio]

Hi,

I'have already one E1 0/1/0 configured in my voice gateway and I'm trying to configure a second one, but it prompts me the message "% Not enough DSP resources available to configure ds0-group 0 on controller E1 0/1/1".

Following is the informations about the voice gateway that may be useful:

show inventory:

NAME: "Chassis", DESCR: "Cisco ISR4331 Chassis"
PID: ISR4331/K9 , VID: V04, SN: TSP2235ADTN

NAME: "Power Supply Module 0", DESCR: "250W AC Power Supply for Cisco ISR 4330"
PID: PWR-4330-AC , VID: V03, SN: DCA22051286

NAME: "Fan Tray", DESCR: "Cisco ISR4330 Fan Assembly"
PID: ACS-4330-FANASSY , VID: , SN:

NAME: "module 0", DESCR: "Cisco ISR4331 Built-In NIM controller"
PID: ISR4331/K9 , VID: , SN:

NAME: "NIM subslot 0/1", DESCR: "NIM-4MFT-T1/E1 - T1/E1 Serial Module"
PID: NIM-4MFT-T1/E1 , VID: V04, SN: FOC222359FR

NAME: "subslot 0/1 db module 0", DESCR: "PVDM4-64 Voice DSP Module"
PID: PVDM4-64 , VID: V02, SN: TSP22380294

NAME: "PVDM subslot 0/4", DESCR: "PVDM4-256 Voice DSP Module"
PID: PVDM4-256 , VID: V02, SN: FOC22240RWZ

NAME: "NIM subslot 0/0", DESCR: "Front Panel 3 ports Gigabitethernet Module"
PID: ISR4331-3x1GE , VID: V01, SN: JAB092709EL

NAME: "module 1", DESCR: "Cisco ISR4331 Built-In SM controller"
PID: ISR4331/K9 , VID: , SN:

NAME: "module R0", DESCR: "Cisco ISR4331 Route Processor"
PID: ISR4331/K9 , VID: V04, SN: TSP22341312

NAME: "module F0", DESCR: "Cisco ISR4331 Forwarding Processor"
PID: ISR4331/K9 , VID: , SN:

show voice dsp group all:

DSP groups on slot 0/1 slot id 1
dsp 1:
State: UP, firmware: 40.2.10
Max signal/voice channel: 64/64
Max credits: 960, Voice credits: 960, Video credits: 0
num_of_sig_chnls_allocated: 30
Transcoding channels allocated: 5
Group: FLEX_GROUP_VOICE, complexity: FLEX
Shared credits: 474, reserved credits: 0
Signaling channels allocated: 30
Voice channels allocated: 0
Credits used (rounded-up): 0
Group: FLEX_GROUP_XCODE, complexity: MEDIUM
Shared credits: 0, reserved credits: 80
Transcoding channels allocated: 0
Credits used (rounded-up): 0
Group: FLEX_GROUP_CONF, complexity: CONFERENCE
Shared credits: 0, reserved credits: 366
Codec: CONF_G729, maximum participants: 8
Sessions per dsp: 10
Group: FLEX_GROUP_XCODE, complexity: HIGH
Shared credits: 0, reserved credits: 40
Transcoding channels allocated: 0
Credits used (rounded-up): 0
Slot: 0/1
Device idx: 0
Dsp Type: SP2700

DSP groups on slot 0/4 slot id 4
dsp 1:
State: UP, firmware: 40.2.10
Max signal/voice channel: 64/64
Max credits: 960, Voice credits: 960, Video credits: 0
num_of_sig_chnls_allocated: 0
Transcoding channels allocated: 0
Group: FLEX_GROUP_VOICE, complexity: FLEX
Shared credits: 960, reserved credits: 0
Signaling channels allocated: 0
Voice channels allocated: 0
Credits used (rounded-up): 0
Slot: 0/4
Device idx: 0
Dsp Type: SP2700

dsp 2:
State: UP, firmware: 40.2.10
Max signal/voice channel: 64/64
Max credits: 960, Voice credits: 960, Video credits: 0
num_of_sig_chnls_allocated: 0
Transcoding channels allocated: 0
Group: FLEX_GROUP_VOICE, complexity: FLEX
Shared credits: 960, reserved credits: 0
Signaling channels allocated: 0
Voice channels allocated: 0
Credits used (rounded-up): 0
Slot: 0/4
Device idx: 0
Dsp Type: SP2700

dsp 3:
State: UP, firmware: 40.2.10
Max signal/voice channel: 64/64
Max credits: 960, Voice credits: 960, Video credits: 0
num_of_sig_chnls_allocated: 0
Transcoding channels allocated: 0
Group: FLEX_GROUP_VOICE, complexity: FLEX
Shared credits: 960, reserved credits: 0
Signaling channels allocated: 0
Voice channels allocated: 0
Credits used (rounded-up): 0
Slot: 0/4
Device idx: 0
Dsp Type: SP2700

dsp 4:
State: UP, firmware: 40.2.10
Max signal/voice channel: 64/64
Max credits: 960, Voice credits: 960, Video credits: 0
num_of_sig_chnls_allocated: 0
Transcoding channels allocated: 0
Group: FLEX_GROUP_VOICE, complexity: FLEX
Shared credits: 960, reserved credits: 0
Signaling channels allocated: 0
Voice channels allocated: 0
Credits used (rounded-up): 0
Slot: 0/4
Device idx: 0
Dsp Type: SP2700

Doesn´t it have DSP enough?

Regards,

Fernando

[Jaime Valencia]

The motherboard PVDMs are supported on all Cisco 4000 Series ISRs. They can be plugged directly into the single slot on the router motherboard or into the network interface module (NIM) that supports T1/E1 ports. A PVDM4 module plugged into the motherboard delivers IP-based voice services such as conferencing, media optimization, and transcoding only.

A PVDM4 module plugged into the T1/E1 NIM would be used for voice T1/E1 connectivity. Any excess channels can be reused toward other IP-based services supported on the motherboard slot. Enhanced DSP architecture accommodates a new packet-processing engine optimized for rich-media voice applications, while concurrently supporting the TDM-IP voice framework.

https://www.cisco.com/c/en/us/products/collateral/routers/4000-series-integrated-services-routers-isr/data_sheet_c78-728307.html

[fernandodonadio]

Hi, Jaime,

Thank you for your reply!

Since the Voice Gateway has a PVDM plugged into the motherboard, it should allocate resource automatically to configure a dsp0-group on a E1, shouldn´t it?

Regards,

Fernando

[Jaime Valencia]

No, read again what I posted. What can you use the DSPs on the MB for?