TLV Units and Their Properties

Each TLV unit has properties that you can further configure with specific values. When the TLV unit is enabled as an LLDP agent's property, then that TLV unit is advertised in the network only with the specified values. For example, consider the TLV value syscapab, which advertises a system's capabilities. These capabilities can potentially include support for routers, bridges, repeaters, telephones, and other devices. However, you can set syscapab so that only those capabilities that are actually supported on your specific system, such as routers and bridges, are advertised.

The procedure for configuring TLV units depends on whether you are configuring global TLV units or per-agent TLV units.

Global TLV units apply to all the LLDP agents on the system. The following table displays the global TLV values and their corresponding possible configurations.

Table 7-2 Global TLV units and Their Properties

TLV Name	TLV Property Name	Possible Property Values	Value Description
`syscapab`	`supported`	`other`, `repeater`, `bridge`, `wlan-ap`, `router`, `telephone`, `docsis-cd`, `station`, `cvlan`, `sylvan`, `tpmr`	Represent the primary supported functions of the system. Default values are `router`, `station`, and `bridge`.
	`enabled`	Subset of the values listed for `supported`	Represents the enabled functions of the system.
`mgmtaddr`	`ipaddr`	`ipv4` or `ipv6`	Specifies the type of IP addresses that will be associated with the local LLDP agent. The addresses will be used to reach higher layer entities and will assist in discovery by network management. Only one type can be specified.

TLV units that cannot have global values are managed at the LLDP agent level. With per-agent TLV units, the values that you provide are used when the TLV unit is enabled for transmission by a specific LLDP agent.

The following table displays the TLV values and their corresponding possible configurations for an LLDP agent.

Table 7-3 Per-Agent TLV Units and Their Properties

TLV Name	TLV Property Name	Possible Property Values	Value Description
`pfc`	`willing`	`on`, `off`	Sets an LLDP agent to accept or reject configuration information from a remote machine that pertains to priority-based flow control.
`appln`	`apt`	Values are taken from the information that is defined in the Application Priority Table.	Configures the Application Priority Table. This table contains the list of application TLV units and their corresponding priorities. The application is identified by the `id`/`selector` pair. The contents of the table use the following format: `id/selector/priority`
`etscfg`	`willing`	`on`, `off`	Sets an LLDP agent to accept or reject configuration information from a remote machine that pertains to enhanced transmission selection.

For a discussion about per-agent TLV units, see Chapter 8, Working With Data Center Bridging Features in Oracle Solaris.

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