Which two options are characteristics of bidirectional PIM? (Choose two)

The correct answer is B. It is ideal for many-to-many host applications E. It enables scalability with a large number of sources. Bidirectional PIM (Bidir-PIM) is optimized for many-to-many multicast applications (e.g., video conferencing, collaboration tools) where multiple sources send to multiple receivers. Unlike PIM-SM, Bidir-PIM does not create per-source Shortest Path Trees (SPTs) and does not…

Advanced Addressing and Routing Solutions

Question

Options

AA registration process is required
BIt is ideal for many-to-many host applications
CThe creation of a source tree is required
DA designated forwarder is not required
EIt enables scalability with a large number of sources

How the community answered

(56 responses)

A
2% (1)
B
93% (52)
C
4% (2)
D
2% (1)

Explanation

Bidirectional PIM (Bidir-PIM) is optimized for many-to-many multicast applications (e.g., video conferencing, collaboration tools) where multiple sources send to multiple receivers. Unlike PIM-SM, Bidir-PIM does not create per-source Shortest Path Trees (SPTs) and does not require a registration process - all traffic flows along a shared bidirectional tree anchored at the RP. This eliminates the per-source state on routers, enabling massive scalability when there are large numbers of sources. A Designated Forwarder (DF) IS required in Bidir-PIM per link, making option D incorrect. No registration process is needed (A is incorrect). Source trees are not created (C is incorrect).

Topics

#bidir-PIM#many-to-many multicast#designated forwarder#scalability

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