Cisco 7800 Series Administration Manual page 49

Port Description TLV
For the outgoing LLDPDU, in the Port Description TLV, the value for the port description is the same as
"Port ID TLV" for CDP. The incoming LLDPDU, the Port Description TLV, is ignored and not validated.
Only one Port Description TLV is allowed for outgoing and incoming LLDPDUs.
System Name TLV
For the Cisco IP Phone, the value is SEP+MAC address.
Example: SEPAC44F211B1D0
The incoming LLDPDU, the System Name TLV, is ignored and not validated. Only one System Name TLV
is allowed for the outgoing and incoming LLDPDUs.
System Capabilities TLV
For the outgoing LLDPDU, in the System Capabilities TLV, the bit values for the 2 octet system capabilities
fields should be set for Bit 2 (Bridge) and Bit 5 (Phone) for a phone with a PC port. If the phone does not
have a PC port, only Bit 5 should be set. The same system capability value should be set for the enabled
capability field.
For the incoming LLDPDU, the System Capabilities TLV is ignored. The TLV is not validated semantically
against the MED device type.
The System Capabilities TLV is mandatory for outgoing LLDPDUs. Only one System Capabilities TLV is
allowed.
Management Address TLV
The TLV identifies an address associated with the local LLDP agent (that may be used to reach higher layer
entities) to assist discovery by network management. The TLV allows the inclusion of both the system interface
number and an object identifier (OID) that are associated with this management address, if either or both are
known.
• TLV information string length—This field contains the length (in octets) of all the fields in the TLV
information string.
• Management address string length—This field contains the length (in octets) of the management address
subtype + management address fields.
System Description TLV
The TLV allows the network management to advertise the system description.
• TLV information string length—This field indicates the exact length (in octets) of the system description.
• System description—This field contains an alphanumeric string that is the textual description of the
network entity. The system description includes the full name and version identification of the system
hardware type, software operating system, and networking software. If implementations support IETF
RFC 3418, the sysDescr object should be used for this field.
Cisco IP Phone 7800 Series for Third-Party Call Control Administration Guide
VLAN Settings
35