I had one nortel and one cisco switch. Two diffrent links are coming from two diffrent ISP`s. I have configured etherchannel between nortel and cisco as metroethernet. I want to replace nortel with cisco. When i tried to do so, i am getting RTO between ehterchannel at the same time when i configure point to point it is working fine. Can anyone suggest what might be the problem?????Configuration is checked. Pls suggest ASAP????