VLAN Membership

[nookie211]

Is there a downside for ports to belong to many vlans? I know why you use vlans and how they are segmented and why they are segmented, but I didnt know if realistically mattered if a port belonged to lets say 3 different VLANS. I imagine it would be a performance hit, right? I dont need a lecture on vlans I am just curious about ports and being members of multiple vlans and performance.

[Vince_Whirlwind · Accepted solution]

Two things that spring to mind are,

 - the switch might unnecessarily broadcast traffic it doesn't need to see

 - a problem affecting one subnet/VLAN might propagate unnecessarily to a switch that doesn't need to be involved

[nookie211]

I didnt think of that Vince. Thank you for the reply