Chapter 7. Node and Terminal Plug-ins
Vol. IV-7-74 Alcatel-Lucent
• The tagging options of Q-in-Q and 802.1q are only available for Transparent
mode and on ports P2 to P4 for Mixed mode. Do Nothing is fixed for VLAN
mode and for P1 of Mixed mode.
• A VLAN ID can be entered (range 0 to 4095) or left as default. At each end
of the VLAN the IDs must be matching (have the same ID number).
• A VLAN membership filter can also be selected. Only VLAN IDs within the
membership range are allowed to transit the relevant port/channel.
• With this capability DAC GE can tag, 802.1p prioritize, and aggregate LAN
traffic from two, three or four ports onto a common trunk/channel. At the far
end of the DAC GE trunk, which may be over multiple hops, options are
provided to remove the VLAN tags applied by DAC GE, or allow them to
be retained intact for VLAN traffic management at downstream devices.
• VLAN tagging is typically used at the edge of a network to tag traffic on a
LAN or VLAN and to assign a priority on its traffic. In this way up to four
separate LANs (ports 1 to 4) can be carried as virtual LANs (VLANs) on a
single 9500 MXC radio/fiber trunk; 9500 MXC acts both as an edge switch
and as the radio trunk link to the core network.
• Each virtual LAN (VLAN) is held separate on the trunk and accorded the
priority set within the 802.1p priority stack at all intermediary 802.1p
devices. This allows network providers to discriminate on the service
priority accorded over its network for each VLAN.
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