Zyxel OLT2412 [103/326] Static multicast forward setup

Zyxel OLT2412 [103/326] Static multicast forward setup
OLT2412 User’s Guide 103
CHAPTER 11
Static Multicast Forward Setup
Use these commands to configure static multicast address forwarding.
11.1 Static Multicast Forwarding Overview
A multicast MAC address is the MAC address of a member of a multicast group. A static multicast
address is a multicast MAC address that has been manually entered in the multicast table. Static
multicast addresses do not age out. Static multicast forwarding allows you (the administrator) to
forward multicast frames to a member without the member having to join the group first.
If a multicast group has no members, then the switch will either flood the multicast frames to all
ports or drop them. You can configure this using the igmp-snooping unknown-multicast-frame
<drop|flooding> command. Figure 30 shows such unknown multicast frames flooded to all ports.
With static multicast forwarding, you can forward these multicasts to port(s) within a VLAN group.
Figure 31 shows frames being forwarded to devices connected to port 3. Figure 32 shows frames
being forwarded to ports 2 and 3 within VLAN group 4.
Figure 30 No Static Multicast Forwarding
Figure 31 Static Multicast Forwarding to A Single Port

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