08-24-2008 11:40 PM - edited 03-15-2019 12:48 PM
I keep getting "channel-group 0 is already defined "
here is the config
controller T1 0/3/0
framing esf
clock source internal
linecod B8zs
channel-group 0 timeslots 16-23
when I add
pri-group timeslots 1-15,24
I get "channel-group 0 is already defined"
What seems to be the problem??
08-25-2008 02:56 AM
this channel-group 0 timeslots 16-23 in channel group 0
u need to defie the other one which is
pri-group timeslots 1-15,24
in another channel gorup
for example channel group 1 or 2
good luck
if helpful Rate
08-25-2008 04:05 AM
Thanks for your help. However, I am not trying to create another Channel group. I already have that for Data all I need is add Pri-group for voice.
08-25-2008 04:04 AM
The VWIC cards only have a single HDLC controller on them, so they can operate purely as data via a channel group, or dedicate this HDLC controller to the ISDN D channel for common channel signaling operation.
With the VWIC's, you cannot run a channel group AND normal ISDN operation on the same physical interface.
08-25-2008 04:12 AM
how do I dedicate the HDLC controller to the ISDN channel? I have seen couple of examples where VWIC-MFT1 is used for
channel-group and PRI-group on the same interface?
08-26-2008 02:04 AM
I found the solution:
when you assign a channel-group number the number which would be the beginning channel number of your channel group
Example:
I want to split a T1 between pri (voice)1-15 and Data 9(16-23)
so the config has to be:
pri-group timeslots 1-15
channel-group 16 timeslots 16-23
if you use any number from 1-15 you get an error
The channel has already been assigned to cas, pri, or tdm group
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