Configuring the Switch
3-178
CLI – This example shows the setting of the transmit interval to 60 seconds, the
transmit delay to 10 seconds, the hold time to 10 seconds, the reinitialization delay
to 10 seconds, and the notification interval to 30 seconds.
Configuring LLDP Interface Attributes
Use the LLDP Port/Trunk Configuration to specify the message attributes for
individual interfaces, including whether messages are transmitted, received, or both
transmitted and received, whether SNMP notifications are sent, and the type of
information advertised.
Command Attributes
• Admin Status – Enables LLDP message transmit and receive modes for LLDP
Protocol Data Units. (Options: Tx only, Rx only, TxRx, Disabled; Default: TxRx)
• SNMP Notification – Enables the transmission of SNMP trap notifications about
LLDP and LLDP-MED changes. (Default: Enabled)
This option sends out SNMP trap notifications to designated target stations at the
interval specified by the Notification Interval in the preceding section. Trap
notifications include information about state changes in the LLDP MIB (IEEE
802.1AB), the LLDP-MED MIB (ANSI/TIA-1057), or vendor-specific
LLDP-EXT-DOT1 and LLDP-EXT-DOT3 MIBs.
For information on defining SNMP trap destinations, see “Specifying Trap
Managers and Trap Types” on page 3-40.
Information about additional changes in LLDP neighbors that occur between
SNMP notifications is not transmitted. Only state changes that exist at the time of
a trap notification are included in the transmission. An SNMP agent should
therefore periodically check the value of lldpStatsRemTableLastChangeTime to
detect any lldpRemTablesChange notification-events missed due to throttling or
transmission loss.
• TLV Type – Configures the information included in the TLV field of advertised
messages.
- Port Description – The port description is taken from the ifDescr object in
RFC 2863, which includes information about the manufacturer, the product
name, and the version of the interface hardware/software.
- System Description – The system description is taken from the sysDescr
object in RFC 3418, which includes the full name and version identification of the
system's hardware type, software operating system, and networking software.
- Management Address – The management address protocol packet includes
the IPv4 address of the switch. If no management address is available, the
Console(config)#lldp refresh-interval 60 4-216
Console(config)#lldp holdtime-multiplier 10 4-214
Console(config)#lldp tx-delay 10 4-217
Console(config)#lldp reinit-delay 10 4-217
Console(config)#lldp notification-interval 30 4-215
Console(config)#lldp medFastStartCount 6 4-215
Console(config)#
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