3com S7906E Guide De Référence

 

2-34 

Use the uni multicast-group-number command to configure the number of multicast channels that 

can be accessed at the same time by the users connected to the specified UNI of the ONU.  

Use the undo uni multicast-group-number command to restore the default value.  

By default, the users connected to a UNI can access up to 64 multicast channels at the same time.  

This command takes effect only when the ONU works in the IGMP snooping mode.  

Related commands: multicast-mode. 

The maximum number of multicast channels supported by the UNI ports of an H3C ONU varies with 

ONU type, as shown in the following table.  

Table 2-7 Maximum number of multicast channels supported by H3C ONUs 

S3100-SI series 

256 

S3100-EI series 

512 

ET704 series 

64 

ET254-L 

Multicast not supported  

 

Assume the maximum number of multicast channels supported by the UNI ports of an ONU is less than 

the maximum number of channels configured remotely through OLT:   

 

When the ONU is online, if you configure the maximum number of multicast channels on UNI ports 

to be greater than that supported by the UNI ports, the configuration will fail. For example, the UNI 

ports of an ET704 series ONU support up to 64 multicast channels. If you use the uni 

multicast-group-number  command by specifying a value greater than 64 for the number 

argument through the OLT, a message prompt will be displayed indicating the configuration fails.   

 

When the ONU is not online, if you configure the maximum number of multicast channels on UNI 

ports through the OLT to be greater than that supported by the UNI ports, after the ONU goes 

online, the ONU will use the maximum number supported. For example, if you configure the 

maximum number of multicast channels on the UNI ports as 255 through the OLT while the 

maximum number of multicast channels supported on the UNI ports of an ET704 series ONU is 64, 

the ONU will support 64 multicast channels. 

# Allow the users connected to UNI 1 of the ONU to access up to 32 multicast channels at the same 

time.  

<Sysname> system-view 

[Sysname] interface onu 3/0/1:1 

[Sysname-Onu3/0/1:1] uni 1 multicast-group-number 32 

uni uni-number multicast-strip-tag enable 

undo uni uni-number multicast-strip-tag enable