Инструкции По Установке для 3com S7906E

 

3-7 

 

If the request packet contains no PPPoE tag, the ONU adds the tag (containing the UNI port 
information) to the request packet and forwards the packet to the OLT side. 

 

If the request packet contains a PPPoE tag, the ONU directly forwards the request packet to the 
OLT side without adding any tag. 

Follow these steps to enable related protocol(s) on an ONU: 

Enter system view 

 

— 

Enter ONU port view 

 onu 

 

— 

Enable related protocol(s) on 
the ONU 

{ stp | 

 | 

 } enable 

Optional 
By default: 

 

RSTP is enabled on the 
ONU. 

 

DHCP snooping, DHCP 
snooping Option82, and 
PPPoE+ are disabled on the 
ONU. 

 

 

When STP is enabled globally on the S7900E switch, you should enable STP on all ONUs. 
Additionally, configure STP correctly to ensure that no ONU can be selected as the STP root bridge; 
otherwise, anomaly may occur on the network.  

 

STP runs normally only when all attached ONUs are H3C ONUs.  

 

Through extended OAM, an OLT can be used to remotely configure the multicast mode of an ONU as 
either IGMP snooping mode or multicast control mode.  

The configuration of a multicast IP address-to-multicast VLAN correspondence is used to add multicast 
address(es) to a multicast VLAN. Upon receiving an IGMP report message, the OLT determines 
whether the multicast IP address contained in the message belongs to the multicast VLAN. If yes, the 
OLT generates a multicast forwarding entry in the multicast VLAN of the multicast IP address; otherwise, 
the OLT directly discards the message. A multicast IP address can belong to only one multicast VLAN.  

Follow these steps to complete the prerequisites for multicast mode configuration:  

Enter system view 

 

— 

Enter FTTH view 

 

— 

Add multicast address(es) to a 
multicast VLAN 

multicast vlan-id vlan-id 
dest-ip ip-address-list  

Required 

Return to system view 

—