24 Port Fast Ethernet Web Management Switch User Manual
Figure 4-19
VLAN mode display the current VLAN mode, click change mode, the mode can be changed
Tag mode display tag information of all ports in the switch
¾
Add tag: add 802.1Q VLAN information to data frame header. The tagging enabled port
will add priority, VID and other VLAN information to all data frame in and out of this
port. If data packet has been tagged before, this data packet will not be modified. Tagging
enable the data packet transmit form one 802.1Q switch to another switch that has the
same type
¾
Don’t care: transmit message in normal way
¾
Remove tag: remove 802.1Q VLAN information from data frame header. The untagging
enabled port will remove priority, VID and other VLAN information from all data frame
in and out of this port. If data packet hasn’t been tagged before, this data packet will not
be modified. Untagging enable the data packet transmit form one 802.1Q switch to
another switch that not support 802.1Q
Note
: If the link partner is a network interface card, it probably cannot recognize the VLAN tag.
In this case, it is strongly recommended the network administrator to remove the VLAN tag of
the corresponding port
4.5.2.
VLAN Member
4.5.2.1. Port-based
VLAN
Port-based VLAN is VLAN based on port, only the devices in the same VLAN port can
communicate with each other, which shield broadcast storm and improve network security.
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