3com S7906E Guide De Référence

 

2-16 

vlan-id  value: Specifies the VLAN ID of test frames. The value argument ranges from 1 to 4094 and 

defaults to 1. 

Use the linktest command to test the connectivity of the optical link between the OLT and the ONU.  

Make sure the ONU is online before you perform the link connectivity test. 

# Set the number of test frames to 100 to test the link between the OLT and ONU 3/0/1:1.  

<Sysname> system-view 

[Sysname] interface onu 3/0/1:1 

[Sysname-Onu3/0/1:1] linktest frame-number 100 

 It may affect data transmission, continue?[Y/N]:y 

 Maximum delay(in TQ): 26408 

 Mean delay(in TQ)   : 24777 

 Minimum delay(in TQ): 19922 

 Sent frames         : 100 

 Received frames     : 100 

 Error frames        : 0 

 

If The link is disconnected! is displayed, it means that the ONU sent some frames successfully but no 

correct frames are received, namely, the value of the Received frames field is 0. 

 

loopback enable 

ONU port view  

2: System level 

None 

Use the loopback enable command to enable MAC loopback for the ONU.  

Use the undo loopback  enable command to cancel loopback.