Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

VWIC channel group

How many channel groups can the VWIC support?

Cisco Employee

Re: VWIC channel group

Hi Friend,

Two channel groups can be supported per VWIC2 module. When a 2 port VWIC2 is used, only 1 channel group is supported per port.



*Pls rate all helpfull post

New Member

Re: VWIC channel group

Dear Ankur

what about VWIC ... ?

Your mentioens answer was about VWIC2 , but is it the same for VWIC as well ?


Cisco Employee

Re: VWIC channel group

Hi Morteza,

This will answer all your doubt



*Pls rate all helpfull post

Re: VWIC channel group

Hi Ankur,

I have a setup wherein i am using a VWIC-1MFT-G703 and have configured 3 channel groups and is working fine

see the below output

controller E1 0/0/0

channel-group 0 timeslots 1-16 speed 64

channel-group 1 timeslots 24-31 speed 64

channel-group 2 timeslots 20-21 speed 64

WIC Slot 0:

E1 G703 (1 port) Multi-Flex Trunk WAN daughter card

Hardware revision 1.0 Board revision B0

Serial number 28182126 Part number 800-06722-02

Test history 0x0 RMA number 00-00-00

Connector type PCI

EEPROM format version 1

EEPROM contents (hex):

0x20: 01 2F 01 00 01 AE 06 6E 50 1A 42 02 00 00 00 00

0x30: 58 00 00 00 02 05 13 00 FF FF FF FF FF FF FF FF


Cisco Employee

Re: VWIC channel group

Hi Narayan

You can configure more than 2 channel group in VWIC2.The channel-group limits depend on where you insert the VWIC2.

e.g. in Case of 3800 HWIC slots: max 128 channel-groups across all 4 HWIC slots & in case of 2800 it's limited to 2 channel groups per HWIC slot.

Also limitation is per slot & not on VWIC2 port