3com S7906E 설치 설명서

 

3-9 

Enter system view 

 

— 

Enter ONU port view 

 onu 

 

— 

Configure the multicast mode 
of the ONU as IGMP snooping 

 

Optional 
By default, the multicast mode 
of the ONU is IGMP Snooping.

Add a UNI to the specified 
multicast VLAN(s) 

 uni-number multicast vlan 

{ vlan-id } & <1-50> 

Required 

Configure the number of 
multicast channels on the 
specified UNI 

uni uni-number 
multicast-group-number 
number

 

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

Remove the VLAN tag of the 
downlink multicast flow on the 
UNI port 

uni uni-number 
multicast-strip-tag enable

 

Optional 
By default, a UNI does not 
remove the VLAN tag of the 
downlink multicast flow. 

Configure the aging timer of the 
router port 

 

router-aging-time seconds

 

Optional 
105 seconds by default 

Configure the query-response 
timer 

 

max-response-time seconds

  

Optional 
By default, the maximum 
response time of group-specific 
queries is 1 second.  

Configure the aging timer of the 
multicast member port 

 

host-aging-time seconds 

 

Optional 
260 seconds by default 

Enable IGMP membership 
report suppression 

 

 

Optional 
Disabled by default 

Enable IGMP leave 
suppression 

 

Optional 
Enabled by default 

 

The max-response-time keyword in the onu-protocol igmp-snooping command sets the maximum 
response time of the group-specific queries. If the device receives no response at the first timeout of the 
maximum response time, it re-sends group-specific queries. If the device still receives no response 
within the maximum response time, the multicast group on the corresponding ONU is deleted.  

 

1) OLT-side 

functions 

 

The OLT side maintains a user multicast service access control table to centrally manage user 
multicast service access rights.