Configuration Prerequisites; Enabling Dldp; Setting The Interval To Send Advertisement Packets; Setting The Delaydown Timer - HP 6125XLG Configuration Manual

Configuration prerequisites

Configure the full duplex mode for the ports at two ends of the link, and configure a speed for the two
ports, rather than letting them negotiate a speed.

Enabling DLDP

To properly configure DLDP on the device, you must enable DLDP globally and on each port.
To enable DLDP:
Step
1. Enter system view.
2. Enable DLDP globally.
3. Enter Ethernet interface view.
4. Enable DLDP.

Setting the interval to send advertisement packets

To make sure DLDP can detect unidirectional links before network performance deteriorates, set the
advertisement interval appropriate for your network environment. (HP recommends that you use the
default interval.)
To set the Advertisement packet sending interval:
Step
1. Enter system view.
2. Set the interval to send
Advertisement packets.

Setting the DelayDown timer

On some ports, when the Tx line fails, the port goes down and then comes up again, causing optical
signal jitters on the Rx line. To avoid this problem, when a port goes down due to a Tx failure, the device
triggers the DelayDown timer to prevent the corresponding neighbor entries from being removed. If the
port remains down when the timer expires, the device removes the DLDP neighbor information. If the port
goes up, the device takes no action.
To set the DelayDown timer:
Command
system-view
dldp global enable
interface interface-type
interface-number
dldp enable
Command
system-view
dldp interval time
30
Remarks
N/A
By default, DLDP is globally
disabled.
N/A
By default, DLDP is disabled on an
interface.
Remarks
N/A
The default is 5 seconds.