Protocol Independent Multicast (PIM) is independent of the IP routing protocol and relies on underlying unicast routing protocols such as OSPF, BGP or static routing to perform the multicast forwarding function.
In PIM Sparse Mode (PIM-SM), only subnets that have active receivers which have explicitly requested the data will be forwarded the traffic. PIM-SM uses a shared tree to distribute the information about active sources via a Rendezvous Point (RP). Later, the traffic is switched over from the shared tree to an optimized source distribution tree.
Net-O2 ATTEST PIM-SM test cases perform conformance testing for Designated Router, Rendezvous Point and Bootstrap Router functionality of PIMv2-SM routers. Tests
verify for frame formats, data forwarding, neighbor discovery, Join/Prune behavior, SPT behavior, as well as Register, Assert and Source Specific Multicast. Finite State Machine cases verify for (*,*, RP), (*, G), (S, G) and (S, G, rpt) states.
Net-O2 also offers PIM-DM and IGMPv3 test suites for conformance testing of IP Multicast in Routers and Switches. Layer-2 bridging test suites such as
RSTP, MSTP and VLAN are also available.
