Configuring The Multicast Mode Of The Onu - 3Com S7906E Configuration Manual

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:
To do...
Enter system view
Enter ONU port view
Enable related protocol(s) 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.

Configuring the Multicast Mode of the ONU

Prerequisites for multicast mode configuration
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:
To do...
Enter system view
Enter FTTH view
Add multicast address(es) to a
multicast VLAN
Return to system view
Use the command...
system-view
interface onu
interface-number
onu-protocol { stp |
dhcp-snooping |
dhcp-snooping information |
pppoe } enable
Use the command...
system-view
ftth
multicast vlan-id vlan-id
dest-ip ip-address-list
quit
3-7
Remarks
—
—
Optional
By default:
RSTP is enabled on the
ONU.
DHCP snooping,
snooping Option82,
PPPoE+ are disabled on the
ONU.
Remarks
—
—
Required
—
DHCP
and