# Multicast Routing Information

Port > Configure > Multicast Routing Information

The Multicast Routing Information dialog box provides information about multicast routing interfaces.

The following information is displayed:

- TTL Threshold (ipMRouteInterfaceTtl)
- Routing Protocol (ipMRouteInterfaceProtocol)
- Rate -Limit (ipMRouteInterfaceRateLimit)

The following list specifies buttons in this dialog box, as well as their function:

- Click OK to continue.

- Click Apply to save the changes in the dialog box.

- Click Cancel to close the dialog box.

- Click Refresh to update the contents of the dialog box.

- Click Print to print the contents of the dialog box.

- Click Help to access online help.

TTL Threshold (ipMRouteInterfaceTtl)

The datagram TTL threshold for the interface. Any IP multicast datagrams with a TTL less than this threshold will not be forwarded out the interface. The default value of 0 means all multicast packets are forwarded out the interface.

Routing Protocol (ipMRouteInterfaceProtocol)

The routing protocol running on this interface.

Rate -Limit (ipMRouteInterfaceRateLimit)

The rate-limit, in kilobits per second, of forwarded multicast traffic on the interface. A rate-limit of 0 indicates that no rate limiting is done.