What is Phantom RP used for?

The correct answer is B. it is used for redundancy in bidirectional PIM. In Bidirectional PIM (Bidir-PIM), the RP does not have an actual protocol function. The RP acts as a routing vector in which all the traffic converges. The RP can be configured as an address that is not assigned to any particular device called a Phantom RP. This means that the…

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Options

Ait is used for load balancing in bidirectional PIM
Bit is used for redundancy in bidirectional PIM
Cit is used for redundancy in PIM-SM
Dit is used for load balancing in PIM-SM

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(42 responses)

A
2% (1)
B
88% (37)
C
2% (1)
D
7% (3)

Explanation

In Bidirectional PIM (Bidir-PIM), the RP does not have an actual protocol function. The RP acts as a routing vector in which all the traffic converges. The RP can be configured as an address that is not assigned to any particular device called a Phantom RP. This means that the RP address does not need to reside on a physical router interface, but can just be an address in a subnet. The RP can also be a physical router, but it is not necessary.

Topics

#Phantom RP#bidirectional PIM#RP redundancy#PIM-BIDIR

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