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Untag VID:
Double Tag:
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Function name:
Port Isolation Configuration
Function description:
Port Isolation is the function what used on a layer 2 switch comprises configuring each of
the ports on the layer 2 switch as a protected port or a non-protected port. A destination
address on an data packet is matched with a physical address on said layer 2 switch and a
forwarding map is generated for the data packet based upon the destination address on the
data packet.
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packets carry no VLAN tag header. If packets have double
VLAN tags, one will be dropped and the other will still be
left. As to Hybrid, it is similar to Trunk, and both of them
will tag-out. When the port is set to Hybrid, its packets will
be untagged out if the VID of the outgoing packets with tag
is the same as the one in the field of Untag VID of this port.
Valid range is 1~4094. It works only when Role is set to
Hybrid.
Double-tag mode belongs to the tag-based mode, however, it
would treat all frames as the untagged ones, which means
that tag with PVID will be added into all packets. Then,
these packets will be forwarded as Tag-based VLAN. So, the
incoming packets with tag will become the double-tag ones.
Scroll to enable the function and default is Disable.
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VigorSwitch G2240 User's Guide
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