An engineer is working for a large scale cable TV provider that requires multicast on multisourced streaming video, but must not use any rendezvous point mechanism. Which multicast protocol must be…

The correct answer is C. PIM-SSM. PIM-SSM (Protocol Independent Multicast - Source Specific Multicast) (C) is the correct choice because it eliminates the need for any Rendezvous Point (RP) mechanism. In SSM, receivers join multicast groups using (S,G) pairs - specifying both the source and the group - so the…

Advanced Addressing and Routing Solutions

Question

An engineer is working for a large scale cable TV provider that requires multicast on multisourced streaming video, but must not use any rendezvous point mechanism. Which multicast protocol must be configured?

Options

ASSM
BASM
CPIM-SSM
DBIDIR-PIM

How the community answered

(51 responses)

A
18% (9)
B
4% (2)
C
71% (36)
D
8% (4)

Explanation

PIM-SSM (Protocol Independent Multicast - Source Specific Multicast) (C) is the correct choice because it eliminates the need for any Rendezvous Point (RP) mechanism. In SSM, receivers join multicast groups using (S,G) pairs - specifying both the source and the group - so the network builds source-specific trees directly without an RP. This is ideal for cable TV streaming where sources are known and controlled. ASM (B) requires an RP. BIDIR-PIM (D) also requires an RP. While SSM (A) describes the general model, PIM-SSM (C) is the specific protocol implementation that achieves RP-free multicast delivery.

Topics

#PIM-SSM#multicast#source-specific multicast#no RP

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