Avaya one-X 1603SW Administrator's Manual page 87

Table 12: VLAN Separation Rules
If
VLANSEP is "1"
(On/Enabled)
VLANSEP is "1"
(On/Enabled)
AND the deskphone is
tagging frames with a
VLAN ID not equal to
PHY2VLAN,
AND the PHY2VLAN
value is not zero.
AND the deskphone is
not tagging frames,
OR if the deskphone is
tagging frames with a
VLAN ID equal to
PHY2VLAN,
OR if the PHY2VLAN
value is zero.
Then
Tagged frames received on the secondary
Ethernet interface:
All tagged frames received on the secondary Ethernet
interface are changed before forwarding to make the
VLAN ID equal to the PHY2VLAN value and the
priority value equal to the PHY2PRIO value.
Untagged frames received on the secondary Ethernet
interface are not changed before forwarding to the
network.
Tagged frames with a VLAN ID of zero
(priority-tagged frames) will be changed before they
are forwarded such that the VLAN ID of the forwarded
frame is equal to the PHY2LAN value and the priority
value is equal to the PHY2PRIO value.
Tagged frames received on the line interface:
Tagged frames received on the Ethernet line interface
will only be forwarded to the secondary Ethernet
interface if the VLAN ID equals PHY2LAN.
Tagged frames received on the Ethernet line interface
will only be forwarded to the deskphone if the VLAN
ID equals the VLAN ID used by the deskphone.
Untagged frames are not changed and will continue
to be forwarded or not forwarded as determined by
the Ethernet switch forwarding logic.
Tagged frames with a VLAN ID of zero
(priority-tagged frames) will either be forwarded to the
secondary Ethernet interface or to the deskphone as
determined by the forwarding logic of the Ethernet
switch, but the tag will still be removed from frames
that egress from the secondary Ethernet interface.
Frames forwarded to the network from the secondary
Ethernet interface will not be changed before
forwarding. Tagging is not added or removed and the
VLAN ID and priority does not change for frames
received on the secondary interface. Tags are still
removed for frames that egress from the secondary
interface. The Ethernet switch forwarding logic
determines whether frames received on the Ethernet
line interface are forwarded to the secondary Ethernet
interface or to the deskphone without regard to
specific VLAN IDs or the existence of tags.
VLAN Considerations
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Issue 1 June 2010 87