I have a client with a data center where they have lots of VLANs running off a 3750 (main switch) and then they have a 3550 and a 2950 running off from this main 3750.
They have lots of VLANs configured and I see that Vlan1 is not being used. Currently, all the IPs of the switches and routers belong to one of the customer Vlan's.
I've read that this is bad practice and that a management VLAN should be created. But I think I've also read that when it comes to management Vlans, one needs to stay away from Vlan1
So I am not sure how to tackle this.