Asymmetric Vlan Commands - D-Link DES-3250TG Command Line Interface Reference Manual

DES-3250TG Layer 2 Fast Ethernet Switch User's Guide
A
SYMMETRIC
The DES-3250TG automatically implements Asymmetric VLANs
system wide. Asymmetric VLANs are used to segment the network to
allow all ports to forward packets to the default VLAN while creating a
unique PVID for each to allow forwarding from the default VLAN to
each port. This arrangement is a convenient method to quickly setup an
environment that allows access to shared resources suchs as servers
or gateway routers (via the default VLAN). Workstations are able to
forward traffic to the default VLAN but are unaware of other existing
VLANs. The default VLAN is able to forward to all ports. Therefore
when Asymmetric VLANs are enabled, forwarding between
participating ports must be done via a shared resource on the default
VLAN.
This feature can be enabled with the following important restrictions:
•
Each participating port must be untagged.
•
GVRP and IGMP Snooping is not supported
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VLAN
C
OMMANDS
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