Document No. 10-300077, Issue 2 6-21
Using VLANs, Hunt Groups, and VTP Snooping
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 i nterruption, decrease the IGMP
query interval from 125 seconds to 5 seconds:
a. Open the IGMP Interfaces Web page (Routing > IGMP >
Interfaces).
b. 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:
a. Open the Router Port Display/Configuration Web page (L2
Switching > Global Configuration > Display/Configure
Router Ports).
b. In the Port field, enter a hunt group port number.
c. In the VLAN field, select All, and then click CREATE.
d. Repeat for all ports participating in the hunt group.
For more information on configuring static router ports, see
“Configuring Static Router Ports” in Chapter20, “Managing
Intelligent Multicasting.”
Creating Hunt Groups

Web Agent

Procedure To create a hunt group:
1. In the navigation pane, expand the L2 Switching folder, and then click
Hunt Groups. The Hunt Group Configuration We b page is displ ayed in
the content pane. See Figure6-9.