Heads Up :
The post you are writing will appear in a public forum. Please ensure all content is appropriate for public consumption. Review the employee guidelines for the community here.
3550 switches support private vlans. Utilizing a private vlan, you can allow all 36 users in switch B to be in the same VLAN while not allowing communication between them.Perform a search on CCO for Private VLAN or PVLAN and read up.
