HP 2910AL User Manual

Page 376

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Configuring for Network Management Applications
LLDP (Link-Layer Discovery Protocol)

Enabling or Disabling LLDP Operation on the Switch.

Enabling LLDP

operation (the default) causes the switch to:

Use active, LLDP-enabled ports to transmit LLDP packets describing itself
to neighbor devices.

Add entries to its neighbors table based on data read from incoming LLDP
advertisements.

Syntax [ no ] lldp run

Enables or disables LLDP operation on the switch. The

no form

of the command, regardless of individual LLDP port
configurations, prevents the switch from transmitting outbound
LLDP advertisements, and causes the switch to drop all LLDP
advertisements received from other devices. The switch
preserves the current LLDP configuration when LLDP is
disabled. After LLDP is disabled, the information in the LLDP
neighbors database remains until it times-out. (Default:
Enabled)

For example, to disable LLDP on the switch:

ProCurve(config)# no lldp run

Changing the Packet Transmission Interval.

This interval controls how

often active ports retransmit advertisements to their neighbors.

Syntax lldp refresh-interval < 5 - 32768 >

Changes the interval between consecutive transmissions of
LLDP advertisements on any given port. (Default: 30 seconds)

Note:

The

refresh-interval must be greater than or equal to

(4

x delay-interval). (The default delay-interval is 2). For example,

with the default

delay-interval, the lowest refresh-interval you can

use is 8 seconds (4

x 2 = 8). Thus, if you want a refresh-interval of

5 seconds, you must first change the delay interval to 1 (that is,
4 x 1 < 5). If you want to change the

delay-interval, use the setmib

command.

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