10-02-2013 11:29 AM
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.
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10-02-2013 06:02 PM
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