H3C Technologies H3C WX3000 Series Unified Switches - Manual (Page 159)

20-6
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You can adjust the interval of sending advertisement packets in different network circumstances,
so that DLDP can respond rapidly to link failure. The interval must be shorter than one-third of the
STP convergence time, which is generally 30 seconds. If too long an interval is set, an STP loop
may occur before DLDP shut down unidirectional links. On the contrary, if too short an interval is
set, network traffic increases, and port bandwidth is reduced.
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DLDP does not process any LACP event, and treats each link in the aggregation group as
independent.
DLDP Configuration
DLDP Configuration Tasks
Follow these steps to configure DLDP:
To do… Use the command… Remarks
Enter system view system-view —
Enable DLDP globally dldp enable
Enter Ethernet
port view Interface interface-type
interface-number
Enable
DLDP
Enable
DLDP on
a port
Enable DLDP on a
port
dldp enable
Required. By default, DLDP is
disabled
Set the authentication mode and password
dldp authentication-mode
{ none | simple
simple-password
| md5
md5-password }
Optional. By default, the
authentication mode is none
Set the interval of sending DLDP packets dldp interval integer
Optional. By default, the
interval is 5 seconds.
Set the delaydown timer
dldp delaydown-timer
delaydown-time
Optional
By default, the delaydown
timer expires after 1 second it
is triggered.
Set the DLDP handling mode when an
unidirectional link is detected
dldp
unidirectional-shutdown
{ auto | manual }
Optional. By default, the
handling mode is auto.
Set the DLDP operating mode
dldp work-mode { enhance |
normal }
Optional. By default, DLDP
works in normal mode.
Enter Ethernet port view
interface interface-type
interface-number
—
Display the configuration information about
the DLDP-enabled ports
display dldp { unit-id |
interface-type
interface-number
}
You can execute this
command in any view.
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When you use the dldp enable/dldp disable command in system view to enable/disable DLDP
globally on all optical ports of the device, this command is only valid for existing optical ports on the
device, however, it is not valid for those added subsequently.
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DLDP can operate normally only when the same authentication mode and password are set for
local and peer ports.