Setting Lldp Timers - HP ProCurve Secure Router 7203 dl Advanced Management And Configuration Manual

Using the Web Browser Interface for Advanced Configuration Tasks

Setting LLDP Timers

LLDP can be a chatty protocol. You can increase LLDP intervals to minimize
overhead.
An LLDP header includes a TTL field that tells neighboring devices how long
to store the information in the message. You can also alter this TTL.
To set LLDP timers:
1. In the left navigation bar, select LLDP under System.
Figure 14-83.Configuring LLDP Parameters
2. Alter the intervals in the LLDP Setup window to the desired time in hours,
minutes, and seconds:
a. The transmit interval determines how often an interface sends out
LLDP messages during normal operations. Enter a time in the Trans-
mit Interval hours, min., and sec. fields.
b. Interface can send messages more often than the transmit interval.
For example, a flapping interface can send messages out again and
again as it goes up and down. If LLDP messages are causing too much
overhead, you can force the interface to wait a set amount of time
before transmitting a new message by raising the minimum transmit
interval. Enter a time in the Minimum Transmit Interval hours,
min., and sec. fields.
c. The interface sets the TTL field for LLDP messages by multiplying the
transmit interval by the TTL multiplier. By default, this multiplier is
four. You can alter the TTL indirectly by changing the value in the TTL
Multiplier field.
Configuring LLDP
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