RTS DV-3400 Información técnica descargar pdf (Pagina 403)

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Configuring for Network Management Applications

LLDP (Link-Layer Discovery Protocol)

Note Topology change notifications provide one method for monitoring system

activity. However, because SNMP normally employs UDP, which does not

guarantee datagram delivery, topology change notification should not be

relied upon as the sole method for monitoring critical endpoint device

connectivity.

LLDP-MED Fast Start Control

Syntax:

lldp fast-start-count < 1 - 10 >

An LLDP-MED device connecting to a switch port may use

the data contained in the MED TLVs from the switch to

configure itself. However, the lldp refresh-interval setting

(default: 30 seconds) for transmitting advertisements can

cause an unacceptable delay in MED device configuration.

To support rapid LLDP-MED device configuration, the lldp

fast-start-count command temporarily overrides the refresh-

interval setting for the fast-start-count advertisement interval.

This results in the port initially advertising LLDP-MED at

a faster rate for a limited time. Thus, when the switch detects

a new LLDP-MED device on a port, it transmits one LLDP-

MED advertisement per second out the port for the duration

of the fast-start-count interval. In most cases, the default

setting should provide an adequate fast-start-count interval.

(Range: 1 - 10 seconds; Default: 5 seconds)

Note: This global command applies only to ports on which a

new LLDP-MED device is detected. It does not override the

refresh-interval setting on ports where non-MED devices are

detected.

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