Gateway Selection Agent
SPB-PIM Gateway interface
Sender IP address (S)
Group IP address (G)
VSN identifier (ISID)
Gateway assigned to the stream
Source IP address (information received from the Gateway Controller)
Group IP address (information received from the Gateway Controller)
Ingress port (The port through which S is accessible)
Upstream IP address (The next-hop IP address, which is also the PIM neighbor across the SPB-PIM Gateway interface which is used to reach S as indicated by the unicast routing entry)
Ingress VLAN ID
Note
If the Agent receives the same source information from multiple Controllers, then the Agent takes action only for the information received from the preferred Controller. The Controller with the lowest system ID is the preferred Controller.
PIM HELLO exchanges
Issuing Joins and Leaves
Process received Joins and Leaves
Implements the Gateway assignment table by acting as the Ingress BEB for streams for which the SPB-PIM Gateway interface is the selected Gateway
Enforces the Gateway assignment table and does not forward streams for which the SPB-PIM Gateway interface is not the selected Gateway
Forwards local and remote SPB streams to satisfy stream requests from neighboring multicast domains
SPB-PIM Gateway Interfaces supports both SM and SSM multicast group range joins and prunes. *G joins are only supported in SM group range.
Note
Only PIM protocol messages are communicated over the SPB-PIM Gateway interface
Only SPB TLVs are communicated over Fabric Connect over SPB
The SPB-PIM Gateway interface is the only component that handles the translation mechanism