Assign a VLAN to multiple ports on Cisco 3750? - Cisco ...
05-17-2016 06:53 AM. Assign a VLAN to multiple ports on Cisco 3750? I have a Cisco 3750G router and generally assign each VLAN to a single port, GigE enabled. I want to assign one particular VLAN to an additional port for optimal, higher speed and traffic flow. I'm also trying to troubleshoot an issue and determine the cause of my problem.