H3C S3600 Series Operation Manual page 203

Operation Manual – DLDP
H3C S3600 Series Ethernet Switches-Release 1510
To ensure unidirectional links can be detected, you must make sure that DLDP is
enabled on both sides, and that the interval between sending advertisement
packets, authentication mode, and password are consistent on both sides.
You can adjust the interval between sending advertisement packets in different
network circumstances so that DLDP can respond rapidly to a 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 shuts down unidirectional links. On the contrary, if too short an interval is set,
network traffic increases, and port bandwidth is reduced.
DLDP does not process any LACP event, and treats each link in the aggregation
group as independent.
When connecting two DLDP-enabled devices, make sure the software running on
them is of the same version. Otherwise, DLDP may operate improperly.
1.2 DLDP Configuration
1.2.1 DLDP Configuration Tasks
Table 1-7 DLDP configuration tasks
Enter system view
Enable
DLDP
Set the authentication mode and
password
Set the interval of sending DLDP
packets
Set the delaydown timer
Operation
Enable DLDP
globally
Enter
Ethernet
Enable
port view
DLDP
on a
Enable
port
DLDP on
a port
Command
system-view
dldp enable
interface interface-type
interface-number
dldp enable
dldp authentication-mode
{ none |
simple-password
md5-password }
dldp interval timer-value
dldp delaydown-timer
delaydown-time
1-7
Chapter 1 DLDP Configuration
Description
—
Required.
By default,
DLDP
disabled.
Optional.
simple
By default, the
| md5
authentication
mode is none.
Optional.
By default, the
interval is 10
seconds.
Optional
By default, the
delaydown
timer expires
after 1 second
it is triggered.
is