xStack® DGS-3620 Series Layer 3 Managed Stackable Gigabit Switch CLI Reference Guide
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Chapter 33
D-Link
Unidirectional Link Detection
(DULD) Commands
config duld ports [<portlist> | all] {state [enable | disable] | mode [shutdown | normal] |
discovery_time <sec 5-65535>}
show duld ports {<portlist>}
33-1 config duld ports
Description
The command used to configure unidirectional link detection on ports.
Unidirectional link detection provides discovery mechanism based on 802.3ah to discovery its
neighbor. If the OAM discovery can complete in configured discovery time, it concludes the link is
bidirectional. Otherwise, it starts detecting task to detect the link status.
Format
config duld por
ts [<portlist> | all
] {state [ena
ble | disable] | mode [shutd
own | normal
]
|
discovery_time <sec 5-65535>}
Parameters
ports - Specifies a range of ports to be used.
<portlist> - Enter the list of ports used for this configuration here.
all – Specifies that all the ports will be used for this configuration.
state - (Optional) Specifies these ports unidirectional link detection status. The default state is
disabled.
enable - Specifies that the unidirectional link detection status will be enabled.
disable - Specifies that the unidirectional link detection status will be disabled.
mode - (Optional) Specifies the mode the unidirectional link detection will be set to.
shutdown - If any unidirectional link is detected, disable the port and log an event.
normal - Only log an event when a unidirectional link is detected.
discovery_time - (Optional) Specifies these ports neighbor discovery time. If the discovery is
timeout, the unidirectional link detection will start. The default discovery time is 5 seconds.
<sec 5-65535> - Enter the discovery time value here. This value must be between 5 and
Restrictions
Only Administrators, Operators and Power-Users can issue this command.
Example
To enable unidirectional link detection on port 1:
DGS-3620-28PC:admin# config duld ports 1 state enable
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