3com S7906E 安装指导

 

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DelayDown timer setting applies to all DLDP-enabled ports. 

 

On detecting a unidirectional link, the ports can be shut down in one of the following two modes. 

z 

Manual mode. This mode applies to networks with low performance, where normal links may be 

treated as unidirectional links. It protects service packet transmission against false unidirectional 

links. In this mode, DLDP only detects unidirectional links and generates log and traps. The 

operations to shut down unidirectional link ports are accomplished by the administrator.  

z 

Auto mode. In this mode, when a unidirectional link is detected, DLDP transits to Disable state, 

generates log and traps, and set the port as DLDP Down. 

Follow these steps to set port shutdown mode: 

Enter system view 

— 

Set port shutdown mode 

dldp unidirectional-shutdown 
{ auto | manual } 

Optional 

auto by default 

 

z 

On a port with both remote OAM loopback and DLDP enabled, if the port shutdown mode is auto 

mode, the port will be shut down by DLDP when it receives a packet sent by itself, causing remote 

OAM loopback to operate improperly. To prevent this, you need to set the port shutdown mode to 

auto mode. 

z 

If the device is busy, or the CPU utilization is high, normal links may be treated as unidirectional 

links. In this case, you can set the port shutdown mode to manual mode to eliminate the effects 

caused by false unidirectional link report. 

 

Follow these steps to configure DLDP authentication: 

Enter system view 

— 

Configure DLDP 
authentication  

dldp authentication-mode 
{ md5 md5-password | none | 
simple simple-password } 

Required 

none by default