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Link Layer Discovery Protocol (LLDP)
Issue 4 August 2006 99
On receipt of a LLDPDU message the Avaya IP Telephones will act on these
Type-Length-Value (TLV) elements.
These telephones:
● do not support LLDP on the secondary Ethernet interface.
● will not forward frames received with the 802.1AB LLDP group multicast address as the
destination MAC address between the Ethernet line interface and the secondary Ethernet
interface.
Table 9: Impact of TLVs on System Parameter Values
System
Parameter Name
TLV
Name
Impact
PHY2VLAN IEEE 802.1 Port
VLAN ID
System value changed to the Port VLAN
identifier in the TLV.
L2QVLAN and
L2Q
IEEE 802.1 VLAN
Name
The system value is changed to the TLV VLAN
Identifier. L2Q will be set to 1 (ON).
VLAN Name TLV is only effective if:
● The telephone is not registered with the
Call Server.
● Name begins with VOICE (case does not
matter).
● The VLAN is not zero.
If VLAN Name causes the telephone to change
VLAN and the telephone already has an IP
address the telephone will release the IP
address and send out a new DHCPDISCOVER
on the new VLAN ID.
MCIPADD Proprietary Call
Server TLV
MCIPADD will be set to this value if it has not
already been set.
TLSSRVR,
HTTPSRVR and
TFTPSRVR
Proprietary File Server
TLV
TLSSRVR, HTTPSRVR and TFTPSRVR will be
set to this value if none of them have already
been set.
L2Q Proprietary 802.1Q
Framing
The default L2Q is set to the value of this TLV.
No change is made to the current L2 tagging,
but the new default value is used on the next
reboot.
Proprietary - PoE
Conservation TLV
This proprietary TLV can initiate a power
conservation mode. The telephones that
support this will turn on/off the telephone
backlight and the backlight of an attached
EU24BL Button Module in response to this TLV.