Determine the Data Stream Learned when IP Multicast over Fabric Connect is Configured on the VLAN

Use the following procedure to determine the data stream learned when IP multicast is configured on the VLAN.

Procedure

  1. In the navigation pane, expand Configuration > IP > Multicast.
  2. Click the Routes tab.

Multicast Field Descriptions

Use the information in the following table to help you use the Multicast tab.

Field

Description

Group

Indicates the IP multicast group for which this entry specifies a next hop on an outgoing interface.

Source

Indicates the network address that, when combined with the corresponding value of ipMRouteNextHopSourceMask, identifies the sources for which this entry specifies a next hop on an outgoing interface.

SourceMask

Indicates the network mask, when combined with the corresponding value of ipMRouteNextHopSource, identifies the sources for which this entry specifies a next hop on an outgoing interface.

UpstreamNeighbor

Indicates the address of the upstream neighbor from which IP datagrams from these sources to this multicast address are received, or 0.0.0.0 if the upstream neighbor is known.

Interface

Indicates the value of ifIndex for the interface on which IP datagrams sent by these sources to this multicast address are received. A value of 0 indicates that datagrams are not subject to an incoming interface check, but can be accepted on multiple interfaces (for example, in CBT).

ExpiryTime

Indicates the minimum amount of time remaining before this entry ages out. The value 0 indicates that the entry is not subject to aging.

Protocol

Indicates the outgoing mechanism through which the switch learns this route. For IP Multicast over Fabric Connect, this value is spb-access or spb-network. Spb-access indicates the datastream learned was from the UNI ports. Spb-network indicates that the datastream learned was from the SPBM cloud.