configuring vwic 1mft1 for voice

I've been trying to configure the vwic 1mft1 from the 2811 (cme) to 1760v(pstn). Been running into some roadblocks last night. I figured this morning at work I get 2 vwic 1mft1 from 2 2811's and connect them so I can get the command working.

These are the cmds I placed on both:

network-clock-participate wic 0
isdn switch-type primary-ni


controller T1 0/0/0
framing esf
linecode b8zs
pri-group timeslots 1-24

On one of the routers all 24 serial interfaces came up on the other I get this error:

% Not enough DSP resources available to configure pri-group on controller T1 0/0/0
% The remaining dsp resources are enough for 0 time slots.
% For current codec complexity, 2 extra dsp(s) are required to create this voice port.
Router(config-controller)#

I figure that I would get this error due to not having pvdms. Both don't have anything onboard. Odd part on the one that worked its running

c2800nm-advsecurityk9-mz.124-15.T3.bin

On the one that gives the me the error has this one:

c2800nm-advipservicesk9-mz.124-18.bin


My question is why would the serial interfaces come up on the one with the advsec ios without any pvdms? I even tftp'd the advip on the one with the advsec and sure enough I got the same error.

Comments

  • DexterParkDexterPark Posts: 121Member
    dmarcisco wrote: »
    On one of the routers all 24 serial interfaces came up on the other I get this error:

    % Not enough DSP resources available to configure pri-group on controller T1 0/0/0
    % The remaining dsp resources are enough for 0 time slots.
    % For current codec complexity, 2 extra dsp(s) are required to create this voice port.
    Router(config-controller)#

    I figure that I would get this error due to not having pvdms. Both don't have anything onboard. Odd part on the one that worked its running

    My question is why would the serial interfaces come up on the one with the advsec ios without any pvdms? I even tftp'd the advip on the one with the advsec and sure enough I got the same error.

    You are correct, the reason is that you don't have enough PVDMS to create a PRI. The serial interfaces do not require any DSP resources, that is what I love about those cards is that you can use them for both DATA & Voice. As for the IOS, I can't say for sure what the deal is, maybe the advanced IP Services is lacking in voice features, check the Feature navigator. Neither image works though right? I think you need at least two PVDM2 chips to make this work.
    My advice to anyone looking to advance their career would be to learn DevOps tools and methodologies. Learn how to write code in languages like Python and JavaScript. Not to be a programmer, but a network automation specialist who can do the job of 10 engineers in 1/3 of the time. Create a GitHub account, download PyCharm, play with Ansible, Chef, or Puppet. Automation isn't the future, it's here today and the landscape is changing dramatically.
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