https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/routing/vEdge-20-x/routing-book/m-multicast-routing.html
For efficient use of WAN bandwidth, strategic Cisco SD-WAN routers can be deployed and configured as replicators throughout the overlay network. Replicators mitigate the requirement for a Cisco SD-WAN router with local sources or the PIM-RP to replicate a multicast stream once for each receiver. As discussed above, replicators advertise themselves, using OMP multicast-autodiscover routes, to the Cisco vSmart Controllers in the overlay network. The controllers then forward the replicator location information to the PIM-enabled Cisco IOS XE SD-WAN routers that are in the same VPN as the replicator.
so IMHO, answer C is correct.
No, look carefully it says replicators advertise themselves using OMP...to the vSmart controllers, its Wan edge devices that advertise themselves to vSmart and vsmart tells the rest of the network. Please read the above link carefully, Correct answer is A
Replicators
For efficient use of WAN bandwidth, strategic Cisco SD-WAN routers can be deployed and configured as replicators throughout the overlay network. Replicators mitigate the requirement for a Cisco SD-WAN router with local sources or the PIM-RP to replicate a multicast stream once for each receiver. As discussed above, replicators advertise themselves, using OMP multicast-autodiscover routes, to the Cisco vSmart Controllers in the overlay network. The controllers then forward the replicator location information to the PIM-enabled Cisco IOS XE SD-WAN routers that are in the same VPN as the replicator.
A replicator is typically a Cisco IOS XE SD-WAN router located at a colo-site or another site with a higher-speed connection to the WAN transport network.
Cisco SD-WAN routers send multicast service routes to the Cisco vSmart Controller using OMP. From these routes, the controller processes and forwards joins for requested multicast groups towards the source address or PIM-RP as specified in the original PIM join message that resulted in a Cisco SD-WAN router advertising the OMP multicast service route.
for me is overlay. and i will go with C
I think the best answer is A but wording is weird again.
1. OMP runs in Overlay of course (Overlay Management Protocol..). Underlay is MPLS or Internet and SDWAN Fabric is built over the Overlay.
2. The answer should be that the WAN Edge routers with replicator function advertise the RP to the receivers over the overlay (so using OMP and actually vSmart advertises the OMP routes, etc. to the edges but the RP is advertised by the replicator WAN Edges) See:
https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/routing/vEdge-20-x/routing-book/m-multicast-routing.html
Correct answer is D. But not rendezvous points. Replicators. Rendezvous points are not part of the SDWAN architecture and reside on the multicast source side.
vSmart controllers doesn't participate in the overlay. Just in the underlay (VPN0). They are sending / advertising the replicator service routes in the overlay (the routes are in the overlay) via OMP and not through the overlay. OMP runs in underlay.
upvoted 1 times
...
This section is not available anymore. Please use the main Exam Page.300-415 Exam Questions
Log in to ExamTopics
Sign in:
Community vote distribution
A (35%)
C (25%)
B (20%)
Other
Most Voted
A voting comment increases the vote count for the chosen answer by one.
Upvoting a comment with a selected answer will also increase the vote count towards that answer by one.
So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.
namashivaya
Highly Voted 3 years, 5 months agoASIMIS
6 months, 1 week agotimtgh
Most Recent 1 year, 7 months agokhanda
2 years, 8 months agoHan2022
2 years, 10 months agoWashiedread
3 years agojuniper
3 years, 2 months ago[Removed]
3 years, 3 months agoAmitmanesar
3 years, 4 months agoamitsir
3 years, 5 months agospamke
3 years, 6 months agospamke
3 years, 6 months agoDBla
3 years, 6 months ago