Lldpdu Transmitted By The Phones - Avaya J129 Installing And Administering

Initial setup and connectivity
equipment can use LLDP to manage power, administer VLANs, DSCP and 802.1p priority fields and
provide some administration.
The transmission and reception of LLDP is specified in IEEE 802.1AB-2005. The use Type-Length-
Value (TLV) elements specified in IEEE 802.1AB-2005, TIA TR-41 Committee - Media Endpoint
Discovery (LLDP-MED, ANSI/TIA-1057), and Proprietary elements. LLDP Data Units (LLDPDUs)
are sent to the LLDP Multicast MAC address (01:80:c2:00:00:0e).
The running SIP software support IEEE 802.1AB if the value of the configuration parameter
LLDP_ENABLED is "1" (On) or "2" (Auto). If the value of LLDP_ENABLED is "0" (off), the
transmission and reception of Link Layer Discovery Protocol (LLDP) is not supported. When the
value of LLDP_ENABLED is "2", the transmission of LLDP frames will not begin until or unless an
LLDP frame is received, and the first LLDP frame will be transmitted within 2 seconds after the first
LLDP frame is received. Once transmission begins, an LLDPDU will be transmitted every 30
seconds. There could be a delay of up to 30 seconds in phone initialization if the file server address
is delivered by LLDP and not by DHCP.
These phones do not transmit 802.1AB multicast LLDP packets from Ethernet line interface to the
secondary line interface and vice versa.

LLDPDU transmitted by the phones

Category
Basic Mandatory
Basic Mandatory
Basic Mandatory
Basic Optional
Basic Optional
Basic Optional
IEEE 802.3
Organization
Specific
TIA LLDP MED
TIA LLDP MED
TIA LLDP MED
November 2017 Installing and Administering Avaya J129 IP Phone in third-party call control setup
TLV Name (Type) TLV Info String (Value)
Chassis ID IPADD of phone, IANA Address Family Numbers enumeration
value for IPv4, or subtype 5:Network address.
Port ID MAC address of the device.
Time-To-Live 120 seconds.
System Name The Host Name sent to the DHCP server in DHCP option 12.
System Capabilities Bit 2 (Bridge) will be 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.
Management Mgmt IPv4 IP address of device.
Address
Interface number subtype = 3 (system port). Interface number =
1.
OID = SNMP MIB-II sysObjectID of the device.
MAC / PHY Reports auto negotiation status and speed of the uplink port on
Configuration / the device.
Status
LLDP-MED Media Endpoint Discovery capabilities = 00-33 (Inventory,
Capabilities Power-via-MDI, Network Policy, MED Caps).
Network Policy Tagging Yes/No, VLAN ID for voice, L2 Priority, DSCP Value.
Inventory – MODEL - Full Model Name.
Hardware Revision
Comments on this document? infodev@avaya.com
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