I'm trying to create a two-port channel (thought is to get more 200MB bandwidth) between a new 3750G and our old Cat 5509.
I've set channel on for 2 ports on the 5509 (and set them each to 100/full duplex). That seems OK. I can't now enable channeling on the 3750. I'm using Network Assistant > create a channel between two ports, select Mode to On (also tried auto) and get the following error when I Apply:
"Gi1/0/48 operational trunk mode Down and Gi1/0/47 operational trunk mode is Static Access."
I only have Gi1/0/47 physically connected at the mo; fearful of connecting /48 other without the channel being enabled.
Can anyone help?