H3C Technologies H3C S7500E Series Switches - Manual (Page 48)

3-6
Enabling Layer-2 Communication Between the ONUs Attached to an OLT Port
By default, Layer-2 communication is disabled between the ONUs attached to an OLT port, that is, the
ONUs attached to an OLT port cannot communicate with each other at Layer 2. To make the devices
or users connected to the ONUs attached to the same OLT port communicate, you can enable this
function.
Follow these steps to enable Layer-2 communication between the ONUs attached to an OLT port:
To do… Use the command… Remarks
Enter system view system-view —
Enter OLT port view interface olt interface-number —
Enable Layer-2 communication
between the ONUs attached to the
OLT port
sme enable
Optional
Disabled by default
With Layer-2 communication enabled between the ONUs attached to an OLT port, all ONUs
attached to the OLT port can communicate with each other at Layer 2.
With Layer-2 communication enabled between the ONUs attached to an OLT port, if you create an
ONU port on the OLT, the ONU connected to the new ONU port can communicate with any ONU
attached to the OLT port at Layer 2.
Configuring Fiber Backup
For fiber backup description, see EPON System Reliability .
Follow these steps to configure fiber backup
To do... Use the command... Remarks
Enter system view system-view —
Enter FTTH view ftth —
Create a fiber backup group fiber-backup group group-number Required