Which multicast routing protocol is most optimal for supporting many-to-many multicast applications?

The correct answer is B. PIM-BIDIR. PIM Bidirectional (PIM-BIDIR) is specifically designed and optimized for many-to-many communication patterns (e.g., financial trading floors, collaborative applications). Unlike PIM-SM, which builds a separate source-specific tree per sender and requires Rendezvous Point (RP)…

Multicast Routing

Question

Options

APIM-SM
BPIM-BIDIR
CMP-BGP
DDVMRP
EMSDP

How the community answered

(46 responses)

A
2% (1)
B
91% (42)
D
4% (2)
E
2% (1)

Explanation

PIM Bidirectional (PIM-BIDIR) is specifically designed and optimized for many-to-many communication patterns (e.g., financial trading floors, collaborative applications). Unlike PIM-SM, which builds a separate source-specific tree per sender and requires Rendezvous Point (RP) registration for each source, PIM-BIDIR creates a single shared bidirectional tree per group rooted at the RP. Traffic flows both toward and away from the RP simultaneously without requiring per-source state, making it highly scalable when there are many sources and many receivers. PIM-SM (A) is better for few-sources/many-receivers (one-to-many). MP-BGP (C) is a routing protocol, not a multicast forwarding protocol. DVMRP (D) is legacy and flood-and-prune based. MSDP (E) is used to connect multiple PIM-SM domains.

Topics

#Multicast Routing#PIM-BIDIR#Many-to-many applications#PIM-SM

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