Avaya 1110 Fundamentals page 649

PC Port (Egress direction)
• Data VLAN disabled—all traffic received on the PC port has the 802.1Q header appended
and the VLAN ID is set to the value which was manually configured in the Data VLAN
field. Any packet arriving on the PC port which is already tagged is dropped.
• Data VLAN enabled—all traffic is forwarded to the PC port based on a review of the MAC
address and the 802.1Q value that was manually configured in the Data VLAN field. Traffic
is forwarded out the PC port only if the packets contain the Data VLAN tag. Untagged
traffic and traffic without the Data VLAN tag is dropped.
Data (PC Port) VLAN Tag Stripping
Data VLAN Tag Stripping can be configured in the Network Configuration menu. To enable
Data VLAN Tag Stripping, select the PC-Port Untag All check box, Data VLAN Tag Stripping
can be enabled or disabled independent of enabling VLAN support on the PC Port.
If the Data VLAN Tag Stripping is disabled, the packet is sent to the PC Port unmodified. If the
Data VLAN Tag Stripping is enabled, the 802.1Q header if one exists, is removed from the
packet before the packet is forwarded to the PC port.
During manual configuration, if Data VLAN is enabled by configuring a VLAN ID, the PC-Port
Untag All check box is selected and is enabled by default. By default, the egress tag is stripped.
To manually override this setting and disable egress stripping, clear the PC-Port Untag All
check box.
If Data VLAN is not enabled during manual configuration, the PC-Port Untag All check box is
not selected. By default, the ingress tag is not stripped. To manually override this setting and
enable ingress stripping, select the PC-Port Untag All check box.
IP Deskphones Fundamentals
Enhanced Data VLAN
February 2013 649