Static Multicast Forwarding; Overview; What You Can Do; What You Need To Know - ZyXEL Communications 43222612 User Manual

Static Multicast Forwarding

11.1 Overview

This chapter discusses how to configure forwarding rules based on multicast MAC addresses of devices
on your network.
Use these screens to configure static multicast address forwarding.

11.1.1 What You Can Do

Use the Static Multicast Forwarding screen
specific multicast frames, such as streaming or control frames, to specific ports.

11.1.2 What You Need To Know

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.
multicast forwarding, you can forward these multicasts to ports within a VLAN group.
157 shows frames being forwarded to devices connected to port 3.
frames being forwarded to ports 2 and 3 within VLAN group 4.
Figure 126 No Static Multicast Forwarding
Chapter 11 Static Multicast Forwarding
Figure 126 on page 156 shows such unknown multicast frames flooded to all ports. With static
GS2220 Series User's Guide
C
H A P T E R
(Section 11.2 on page 157) to configure rules to forward
156
Figure 127 on page
Figure 128 on page 157 shows
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