Port and WWN zoning

Zoning can also be applied to either switch ports or end-station names.

Port zoning restricts specific switch ports from seeing unauthorized ports. WWN zoning (also called name zoning) restricts access by a device's World Wide Name (WWN). With port zoning, even when a device is unplugged from a switch port and a different one is plugged in, the new device has access to the zone instead of the old one - i.e. the fact that a device's WWN changed is ignored. With WWN zoning, when a device is unplugged from a switch port and plugged into a different port (perhaps on a different switch) it still has access to the zone, because the switches check only a device's WWN - i.e. the specific port that a device connects to is ignored. This is more flexible, but WWNs can be easily spoofed, reducing security.

July 4, 2011

Continue

Featured