Problems with a NM-HDV2-2T1/E1

Unanswered Question
Jul 13th, 2007

I have a 2821 with an NM-HDV3-2T1/E1 network module installed. I have an VWIC2-2MFT-T1/E1 installed in the open slot. The VWIC is connected to 2 data T1s and they are working fine(t1 1/0/0 and 1/0/1). The problem I am having is defining the onboard T1s as data T1s. When I define the controller and the channel group on t1 1/0 ( channel-group 0 timeslots 1-24 speed 64) I get and error message:

%Insufficient resources to create channel group

Here is the controller configs:

controller T1 1/0

framing esf

clock source internal

linecode b8zs

cablelength short 133

!

controller T1 1/1

framing esf

clock source internal

linecode b8zs

cablelength short 133

!

controller T1 1/0/0

framing esf

clock source internal

linecode b8zs

cablelength short 133

channel-group 0 timeslots 1-24

detect v54 channel-group 0

!

controller T1 1/0/1

framing esf

clock source internal

linecode b8zs

cablelength short 133

channel-group 0 timeslots 1-24

detect v54 channel-group 0

Is there something special I need to do to get the onboard T1s defined for data?

Thanks, Steve

I have this problem too.
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vinay_verma80 Sun, 07/15/2007 - 12:43

hi

i suppose u need dsp in ur router. check how many dsp u have , add more dsp

( u can be sure of this by reducing time stols try "channel-group 0 timeslots 1 speed 64" command , if router take the command u can increase the time slots untill it give u the same error )

regards

Paolo Bevilacqua Sun, 07/15/2007 - 17:11

The thing is that "channel-group" does not uses DSP and it is a data configuration, not voice.

This case should be given to the TAC in my opinion.

vinay_verma80 Thu, 07/19/2007 - 09:52

hi

I still think this is because of dsp

u can try the method it will hardly matter of 10-15 min after that if does not solve u can go a open a tac case

regards

Paolo Bevilacqua Thu, 07/19/2007 - 14:32

Let's wait for the answer from TAC to ssjoberg.

Perhaps it will come out that VWIC in the slot on NM-HDV cannot be used for data, although this is not evident from any document.

It should work in an HWIC slot on the 2821, if available.

jerry.mcrae Fri, 07/20/2007 - 08:44

it will come down to router resources. i have a 3745 with an nm-hdv2 and a 2 port t-1 trunk controller installed and i couldn't turn up the new t-1 on the 2nd port. i maxed out the dsp on the module and even decreased the size of the trans coding and conference config with no luck. i think i need to add memory to the router and not the module. just my $.02.

Paolo Bevilacqua Fri, 07/20/2007 - 09:15

Hi Jerry,

No it shouldn't be the memory. To create serial interfaces (channel-group), the router needs something called "HDLC framer". It is the device than handles serial communication and it can be located in different places depending the router architecture.

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