What is an advantage of using OTV as compared to VPLS for data center redundancy?
What is an advantage of using OTV as compared to VPLS for data center redundancy?
An advantage of using OTV (Overlay Transport Virtualization) over VPLS (Virtual Private LAN Service) for data center redundancy is that OTV uses a proactive MAC advertisement method. In OTV, MAC addresses and their reachability information are proactively advertised using a control plane protocol, which reduces the need for flooding of Layer 2 traffic. This is a key improvement over traditional data plane learning systems, which rely on flooding to discover MAC addresses.
FYI after taking the test and most of the questions are not on this webpage. Maybe 5-10. best of luck
Yes, it is C https://www.cisco.com/c/dam/en_us/solutions/industries/docs/gov/otv.pdf "Flooding Based Learning Control-Plane Based Learning Move to a Control Plane protocol that proactively advertises MAC addresses and their reachability instead of the current flooding mechanism."
Shouldn't this be option - B? OTV supports head-end replication when multicast is not supported in the core, so no need to broadcast the traffic to all sites.
No,Head-end replication is only supported by VXLAN through static mappings of VTEPs.A is correct
Loop on p2p? I don't think so...
Loop on p2p? I don't think so...
Correct answer is C -- see slide 18: https://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2018/pdf/BRKDCN-2931.pdf
Overlay transportation introduces the concept of “MAC routing,” which means a control plane protocol is used to exchange MAC reachability information between network devices providing LAN extension functionality. This is a significant shift from Layer 2 switching that traditionally leverages data plane learning, and it is justified by the need to limit flooding of Layer 2 traffic across the transport infrastructure. As outlined in this chapter, Layer 2 communication between sites resembles routing more than switching. If the destination MAC address information is unknown, traffic is dropped (not flooded), preventing the waste of precious bandwidth across the WAN Answer is C
Im sorry answer is A
I didnt pass , new 20-25 questions >19-4-2023 total 61 3-4 drag and drop
Hi all, I didn't pass after 3 times. Poor me. Do any one here can help/share right answer validated for me to get out of that ? Thank you so much.
I would say answer is B
Answer C is correct. Why: VPLS also prevent loops otv avoid head-end replication vpls also use full-mesh conectivity