decisions are based upon this PVID, in so far as VLAN are concerned. Tagged packets are forwarded
according to the VID contained within the tag. Tagged packets are also assigned a PVID, but the PVID is
not used to make packet forwarding decisions, the VID is.
Tag-aware switches must keep a table to relate PVID within the switch to VID on the network. The switch
will compare the VID of a packet to be transmitted to the VID of the port that is to transmit the packet. If
d the VID for tagged packets, tag-aware and tag-unaware network devices can
coexist on the same network.
Because some devices on a network may be tag-unaware, a decision must be made at each port on a
before packets are transmitted – should the packet to be transmitted have a tag or not?
Default VLANs
one VLAN, VID = 1, called
"default."
The factory default setting assigns all
VLAN and Trunk Groups
In order to use VLAN segmentation in conjunction with port link aggregation groups, you can first set the
port link aggregation group(s), and then you may configure VLAN settings. If you wish to change the port
ady in place, you will not need to reconfigure the VLAN settings
rt link aggregation group settings. VLAN settings will automatically change in
4.7.1.2 VLAN Configuration
Port-based VLAN
Packets can only be broadcast among other members of the same VLAN group. Note all unselected
ports are treated as belonging to the default system VLAN. If port-based VLAN are enabled, then
VLAN-tagging is ignored.
1.
On
VLAN Configuration
table, choose
Port-based VLAN
. Click
on the
“OK”
button.
the two VID are different the switch will drop the packet. Because of the existence of the PVID for
untagged packets an
A switch port can have only one PVID, but can have as many VID as the switch has memory in its VLAN
table to store them.
tag-aware device
If the transmitting port is connected to a tag-unaware device, the packet should be untagged. If the
transmitting port is connected to a tag-aware device, the packet should be tagged.
The Switch initially configures
ports on the Switch to the
"default"
. As new VLAN are configured in Port-based mode, their respective
member ports are removed from the "default."
link aggregation grouping with VLAN alre
after changing the po
conjunction with the change of the port link aggregation group settings
