To view the operational multicast channel properties of an MDA

Purpose

Perform this procedure to view specific information about an operational multicast channel on an MDA that is configured to use an Ingress Multicast Bandwidth policy.

For 7450 ESS, 7750 SR, and 7950 XRS NEs, the operational MC path management properties are available for viewing on forwarding planes; see To view the operational MC path management properties of a forwarding plane.

Note: You can also view operational multicast channel information in the following locations:

the Mcast Path Mgmt tab on the properties form of a VPLS or VPRN service site
the Mcast Path Mgmt Channels tab on the properties form of a routing instance.

Each properties form contains information about the ingress MDA of each operational channel.

Steps


1	On the equipment tree, right-click on an NE and choose Properties. The Network Element (Edit) form opens.
2	On the NE navigation tree, expand Shelf→Card Slot n.
3	Click the Daughter Card Slot object. The Daughter Card Slot form opens.
4	Click on the Mcast Path Mgmt Channels tab.
5	Search for channels, choose a channel from the list and click Properties.
6	View the channel information, which includes the service site or routing instance associated with the channel, and the following properties: Note: Channel information is displayed only when the MDA receives multicast traffic for a previously configured multicast group. Group Address—the operational channel multicast group address Source Address—the operational channel multicast source address Bandwidth—the operational bandwidth of the channel Administrative Bandwidth—the administrative bandwidth of the channel Last Highest Bandwidth—the value of the multicast bandwidth that is currently allocated to the channel forwarding path on the MDA. This value is calculated based on periodic statistics polls and represents the highest recorded bandwidth value since the most recent restart of the bandwidth update timer for the channel. Second Highest Bandwidth—the second-highest recorded bandwidth value for the channel since the most recent restart of the bandwidth update timer. The value is calculated based on periodic statistics polls and is reset to zero every time the bandwidth update timer for the channel is restarted. BW Update Timer expiration—the time that remains before the bandwidth update timer for the channel expires Current Path—the path that the channel traffic uses to reach the switching fabric; the path value is primary, secondary, or ancillary Explicit Path—indicates whether the current path is explicitly specified by a Multicast Info Policy Preference Level—the preference level of the channel Black-Hole—whether the channel is in the Black-Hole state Black-Hole Rate—specifies the bandwidth rate, in kb/s, at which the channel enters the Black-Hole state
7	Close the form. End of steps