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When shipped from the factory, the 36-port 10/100BASE-TX Desktop
Switching Modules (Model Numbers 3CB9LF36RL and 3CB9LF36TL),
default to VLAN 1 and can communicate with all CoreBuilder 9000
ports on that VLAN.
Each client (front panel) port on the 36-port 10/100BASE-TX Desktop
Switching Module defaults to system VLAN 1, untagged. The module’s
backplane port also defaults to VLAN 1, untagged. And the port on
the switch fabric module that connects to the 36-port 10/100BASE-TX
Desktop Switching Module defaults to VLAN1, untagged.
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The 36-port 10/100BASE-TX Desktop Switching Module backplane
port supports one untagged VLAN, and up to 64 tagged VLANs. Only
the untagged VLAN requires configuration on the module backplane
port. In most cases, the untagged VLAN is VLAN 1, the default VLAN.
All additional VLANs traverse the backplane as tagged VLANs. You
must configure the switch fabric module port that connects to the
36-port 10/100BASE-TX Desktop Switching Module to pass these
additional VLANs as tagged.
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You can configure the 36-port 10/100BASE-TX Desktop Switching
Module client (front panel) ports to participate in 1 untagged system
VLAN and up to 64 tagged system VLANs. The tagged and untagged
VLAN assignment for a client port is independent of the backplane
port. If a connected station sends packets with 802.1q tags, assign
that port to the VLAN as 802.1q tagged. If the connected station does
not send 802.1q tagged packets, assign the client port to the VLAN as
untagged.