cisco add on module

[Network Pro]

Hi,

i have a cisco router (3900 series) and a add on module (4 x 1 Gig port module). For some reason i cant seem to port channel them and cant do routing (can set an ip address on those ports). I can do port channel and routing on  on-board ports. Do i have to enable any commands to do this ?

Thanks                   

[Leo Laohoo]

I'm not sure, but I am suspecting you can't do a Layer 3 etherchannel with those EHWIC-1GE-SFP.

I think what you can do is get a switch and do a layer 3 etherchannel there and plumb it back to your router.

[Leo Laohoo]

If you want Layer 3 Etherchannel, then I believe this is what you are looking for:  Cisco Enhanced EtherSwitch Service Modules for Cisco 2900 and 3900 Series Routers.

"SM-D-ES3" is a Layer 2/Layer 3 based around the 3750 IOS.

[Network Pro]

for some reason this is just layer 2 and even strange i cant even do l2 port channel