These phones:
• do not support LLDP on the secondary Ethernet interface.
• do 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.
The phone initiates LLDP after receiving an LLDPDU message from an appropriate system. After
the phone is initiated, the phone sends an LLDPDU every 30 seconds or as specified by
LLDP_XMIT_SECS parameter with the following contents:
Table 10: LLDPDU transmitted by the phones
Category
TLV Name (Type)
TLV Info String (Value)
Basic Mandatory
Chassis ID
IPv4 IP Address of phone.
Basic Mandatory
Port ID
MAC address of the phone.
Basic Mandatory
Time-To-Live
120 seconds.
Basic Optional
System Name
The Host Name sent to the DHCP server in DHCP
option 12.
Basic Optional
System Capabilities
Bit 2 (Bridge) is set in the System Capabilities if the
phone has an internal Ethernet switch. If Bit 2 is set
in Enabled Capabilities then the secondary port is
enabled.
Bit 5 (phone) in the System Capabilities. If Bit 5 is set
in the Enabled Capabilities than the phone is
registered.
Basic Optional
Management Address
Mgmt IPv4 IP Address of phone.
Interface number subtype = 3 (system port). Interface
number = 1.
OID = SNMP MIB-II sysObjectID of the phone.
IEEE 802.3
Organization Specific
MAC / PHY
Configuration / Status
Reports auto-negotiation status and speed of the
uplink port on the phone.
TIA LLDP MED
LLDP-MED Capabilities
Media Endpoint Discovery - Class III - IP Telephone.
TIA LLDP MED
Extended
Power-Via-MDI
Power Value = 0 if the phone is not currently
powered through PoE, else the maximum power
usage of the deskphone plus all modules and
adjuncts powered by the phone in tenths of a watt.
TIA LLDP MED
Network Policy
Tagging Yes/No, VLAN ID for voice, L2 Priority,
DSCP Value.
TIA LLDP MED
Inventory – Hardware
Revision
MODEL - Full Model Name.
TIA LLDP MED
Inventory – Serial
Number
Phone serial number.
Table continues…
Administering your phone
May 2018
Installing and Administering Avaya J169/J179 IP Phone H.323
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