KB.15.15

Syntax:

[no] igmp filter-unknown-mcast

Enables interface isolation for unjoined multicast groups. IGMP is configured so

that each interface with IGMP enabled will have a data-driven multicast filter

associated with it, preventing unjoined IP multicast packets from being flooded. A

reboot is required for the change to take effect.

Default: Disabled

Configuring IGMP proxy (CLI)

For more information on IGMP proxy, see “IGMP general operation and features” (page 24).

Adding or leaving a multicast domain

Syntax:

[no] igmp-proxy-domain domain-name [ border-router-ip-address

| mcast-range | all ]

The no form of the command is used to remove a multicast domain.

All VLANs associated with the domain must first be removed for this command to

work. See the no form of igmp-proxy in the VLAN context command.

domain-name User-defined name to associate with the PIM

border router and multicast range that is

being sent toward the border router.

border-router-ip-addr The IP address of the border router toward

which IGMP proxy packets are sent. Not

required for the no form of the command.

NOTE: The current routing FIB determines

the best path toward the border router and

therefore the VLAN that a proxy is sent out

[ low-bound-ip-address |

all ]

The low boundary (inclusive) of the multicast

address range to associate with this domain

(for example, 234.0.0.1.)

If all is selected, the multicast addresses in

the range of 224.0.1.0 to

239.255.255.255 are included in this

domain.

NOTE: Addresses 224.0.0.0 to

224.0.0.255 are never used, because these

addresses are reserved for protocols.

high-bound-ip-address The high boundary (inclusive) of the multicast

address range to associate with this domain

(for example, 236.1.1.1.)

22 Multimedia Traffic Control with IP Multicast (IGMP)