Displaying the multicast FIB
Use the following procedure to display the multicast FIB.
In SPBM, B-MAC addresses are carried within the IS-IS link-state database. To do this, SPBM supports an IS-IS TLV that advertises the I-SID and B-MAC information across the network. Each node has a System ID, which also serves as Backbone MAC address (B-MAC) of the switch. These Backbone MAC addresses are populated into the SPBM VLAN Forwarding Information Base (FIB).
When the network topology is discovered and stored in the IS-IS link-state database, each node calculates shortest path trees for each source node, so that a unicast path now exists from every node to every other node. With this information, each node populates unicast information received from SPBM into the FIB for forwarding purposes.
The multicast FIB is not produced until virtual services are configured and learned.
Procedure
- In the navigation pane, expand .
- Select SPBM.
- Select the Multicast FIB tab.
Multicast FIB Field Descriptions
Use the data in the following table to use the Multicast FIB tab.
|
Name |
Description |
|---|---|
|
SysId |
System ID of the node where the multicast FIB entry originated. |
|
Vlan |
VLAN of the multicast FIB entry. |
|
McastDestMacAddr |
Multicast destination MAC Address of the multicast FIB entry |
|
Isid |
I-SID of the multicast FIB entry. |
|
Isid Name |
Name assigned to the I-SID. |
|
HostName |
Host name of the node where the multicast FIB entry originated. |
|
OutgoingInterfaces |
Specifies the switched UNI port outgoing interface of multicast FIB entry. |
|
IncomingInterface |
Specifies the incoming interface (port or MLT) of the multicast FIB entry. |