Refer to the exhibit. R1, R2, and R3 in different satellite offices of the same organization, which sources multicast video streams from R1. R3 frequently receives video streams intended for R2. These streams saturate the available bandwidth of R3.
Which configuration change can alleviate the congestion on R3?
A. Enable IGMP snooping on all switches that connect to R1,R2 and R3
B. Place a PIM filter on the switch and interface that connect to R1 only
C. Configure IGMP snooping on R1, R2 and R3
D. Place a PIM filter on the switches and interfaces that connect to R1, R2 and R3
E. Configure R3 to send an immediate-leave message when necessary to stop receiving unwanted traffic
F. Enable PIM snooping on all switches that connect to R1, R2 and R3
The answer mentioned in the vce guide is correct
Answer: Enable IGMP snooping on all switches that connect to R1,R2 and R3.
Note: PIM snooping here is not helps since the routers here role as hosts and all connected to same layer2 lan. PIM is works between several routers connected with several switches to each other and traffic can manage between switches interfaces.
Great job John! I would have done the same
In order to enable PIM snooping you need to enable IGMP snooping as well…. tricky 😉
I would have answered “F”. IGMP snooping is between receivers and their first hop router. PIM on the other hand is meant exactly for this purpose.