Lldp-Med Fast Start Control; And Location Data - HP PROCURVE 2520 Management And Configuration Manual

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

LLDP-MED Fast Start Control

Syntax: lldp fast-start-count < 1 - 10 >
Advertising Device Capability, Network Policy, PoE Status

and Location Data

The medTlvEnable option on the switch is enabled in the default configuration
and supports the following LLDP-MED TLVs:
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■
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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.
LLDP-MED capabilities: This TLV enables the switch to determine:
• whether a connected endpoint device supports LLDP-MED
• which specific LLDP-MED TLVs the endpoint supports
• the device class (1, 2, or 3) for the connected endpoint
This TLV also enables an LLDP-MED endpoint to discover what LLDP­
MED TLVs the switch port currently supports.
network policy operating on the port to which the endpoint is connected
(VLAN, Layer 2 QoS, Layer 3 QoS)
PoE (MED Power-over-Ethernet)
physical location data — page 13-62