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d) VLAN exemples
Tag Insertion/Removal:
The insertion and removal of VLAN tags e.g. makes sense, if non VLAN-capable devices shell be
integrated into a VLAN.
As exemple,a PC and a server shell communicate with each other. The server is configured for
VLAN 73, the PC does not support 802.1Q VLAN. From packages that go from the server to the
PC side, the VLAN tag must be removed. In packets that the PC to the server, the VLAN tag must
be inserted. The PC is connected to the USB port of the OABR Multi-Media-Switch, the server is
connected to the 100BTX port.
The VLAN 73 must be configured as a valid VLAN in the VLAN table. The forwarding ports are not
important in this case because VLAN table filtering is disabled.
The port to which the PC is connected (USB), is configured with VLAN ID 73 as PVID. The PVID
of the input port is inserted when the packet is forwarded, if at the Output port (100BTX) the flag
„insert tag“ is set.
In order to remove the VLAN tag 73 from the packets of the server, the Remove Tag flag must be
set on the destination port (USB).
The PVID of port 100BTX (88) is irrelevant in this case, since no other port has the insert
tag flag set.
Summary of Contents for 2-Port OABR Multi-Media-Switch
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