# Internet Protocol Multicasting (IPM) Route Flag Information

To access this dialog box:

1. Select Device > Configure > IP Multicast Route Table.
2. With an entry selected, click Flags.

The IPM Route Flag Information dialog box provides multicast routing information flags for IP datagrams sent to the IP multicast groups known to the router.

The following information is displayed:

- Prune Flag (ciscoIpMRoutePruneFlag)
- Sparse Flag (ciscoIpMRouteSparseFlag)
- Connected Flag (ciscoIpMRouteConnectedFlag)
- Local Flag (ciscoIpMRouteLocalFlag)
- Register Flag (ciscoIpMRouteRegisterFlag)
- RP Flag (ciscoIpMRouteRpFlag)
- SPT Flag (ciscoIpMRouteSptFlag)
- Join Flag (ciscoIpMRouteJoinFlag)
- MSDP Flag (ciscoIpMRouteMsdpFlag)
- Proxy Join Flag (ciscoIpMRouteProxyJoinFlag)

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.

Prune Flag (ciscoIpMRoutePruneFlag)

Indicates whether this route is pruned. A pruned route is one that has an empty outgoing interface list or all interfaces are in Pruned state. A multicast packet that matches a pruned route doesn't get forwarded.

Sparse Flag (ciscoIpMRouteSparseFlag)

Indicates PIM multicast routing protocol sparse-mode (versus dense-mode). In sparse-mode, packets are forwarded only out interfaces that have been joined. In dense-mode, they are forwarded out all interfaces that have not been pruned.

Connected Flag (ciscoIpMRouteConnectedFlag)

Indicates whether there is a directly connected member for a group attached to the router.

Local Flag (ciscoIpMRouteLocalFlag)

Indicates whether local system is a member of a group on any interface.

Register Flag (ciscoIpMRouteRegisterFlag)

Indicates whether to send registers for the entry. A first hop router directly connected to a multicast source host, as well as a border router on the boundary of two domains running different multicast routing protocols, encapsulates packets to be sent on the shared tree. This is done until the RP sends Joins back to this router.

RP Flag (ciscoIpMRouteRpFlag)

Indicates whether there is a Prune state for this source along the shared tree.

SPT Flag (ciscoIpMRouteSptFlag)

Indicates whether data is being received on the SPT tree (i.e., the Shortest Path Tree).

Join Flag (ciscoIpMRouteJoinFlag)

Indicates whether this route is created due to SPT threshold.

MSDP Flag (ciscoIpMRouteMsdpFlag)

Indicates whether this route is discovered by MSDP.

Proxy Join Flag (ciscoIpMRouteProxyJoinFlag)

Indicates whether to send join for this entry.