300-510 SPRI: Implementing Cisco Service Provider Advanced Routing SolutionsDemo

By Cisco · Question Mode

QuestionQ202

Routing Policy and Manipulation

Question Image

Refer to the exhibit. Every router in this network is configured with PIM-SM, and R1 is the rendezvous point. However, after asymmetric routing is implemented to change link utilization, the network starts dropping some multicast traffic. Which action resolves the issue?

  • A Place the routes affected by asymmetric routing in a VRF
  • B Remove the asymmetric routing and use spanning tree to manage link usage
  • C Add a static mroute for routes that are failing
  • D Configure the routers to use PIM-DM instead of PIM-SM
Explanation

PIM-SM drops multicast packets that fail the RPF check. Asymmetric routing can cause packets to arrive on an interface that differs from the interface selected by the unicast route toward the source or rendezvous point. A static mroute overrides the RPF path for the affected source routes, allowing the intended multicast traffic to pass the RPF check.

Learn more

Community Discussion

No comments yet. Be the first to start the discussion!