3Com WX3000 # Enable Dldp globally, # Set the interval of sending Dldp packets to 15 seconds

[SwitchA-GigabitEthernet1/0/11] duplex full

[SwitchA-GigabitEthernet1/0/11] speed 1000

[SwitchA-GigabitEthernet1/0/11] quit

# Enable DLDP globally

[SwitchA] dldp enable

DLDP is enabled on all fiber ports except fabric ports.

# Set the interval of sending DLDP packets to 15 seconds

[SwitchA] dldp interval 15

# Configure DLDP to work in enhanced mode

[SwitchA] dldp work-mode enhance

# Set the DLDP handling mode for unidirectional links to auto

[SwitchA] dldp unidirectional-shutdown auto

# Display the DLDP status

[SwitchA] display dldp 1

When two switches are connected through fibers in a crossed way, two or three ports may be in the disable state, and the rest in the inactive state.

When a fiber is connected to a device correctly on one end with the other end connected to no device:

z

z

If the device operates in the normal DLDP mode, the end that receives optical signals is in the advertisement state; the other end is in the inactive state.

If the device operates in the enhance DLDP mode, the end that receives optical signals is in the disable state; the other end is in the inactive state.

# Restore the ports taken down by DLDP

[SwitchA] dldp reset

2)Configure Switch B

The configuration of Switch B is the same to that of Switch A.

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