Hunt Groups and Multicast Traffic

All multicast traffic is forwarded by the base port of the hunt group. If the base port changes, multicast traffic is interrupted until the sessions are relearned through the new base port.

To decrease or eliminate this multicast traffic interruption, you can:

• To decrease the multicast traffic interruption, decrease the IGMP query interval from 125 seconds to 5 seconds:
1. Open the IGMP Interfaces Web page (Routing > IGMP > Interfaces).
2. In the Query Request Interval in (sec) field, enter 5, and then click APPLY.
• To eliminate the multicast traffic interruption, configure all ports in the hunt group as static router ports, and bind the router ports to all VLANs:
1. Open the Router Port Display/Configuration Web page (L2 Switching > Global Configuration > Display/Configure Router Ports).
2. In the Port field, enter a hunt group port number.
3. In the VLAN field, select All, and then click CREATE.
4. Repeat for all ports participating in the hunt group.

For more information on configuring static router ports, see "Configuring Static Router Ports" in Chapter 20:�Managing Intelligent Multicasting.