I have configure VLT in S4148 Switch and want to make trunking with N series switch as configuration below:
On S4148FE with VLT,
interface port-channel 110
vlt port-channel 110
switchport mode trunk
int range ethernet 1/1/10
channel-group 110 mode active
N Series Switch;
switchport mode general
switchport general allowed vlan add 120,202,220,222 tagged
N series switch is used by other company and we don't have access to modify configuration, May i make trunk without configuring port-channel in S series VLT switch, if I create and port channel and make it trunk, does it work with another N series switch without creating port channel for that side? How to make trunk between port channel and normal trunk?
It has to match on both sides, a port channel would have to connect to a port channel.
Yes you can, switchport trunk command.
Try turning on bpduguard, also is spanning tree enabled?