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Exam ACE-A1.2 All Questions

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Exam ACE-A1.2 topic 1 question 74 discussion

Actual exam question from Arista's ACE-A1.2
Question #: 74
Topic #: 1
[All ACE-A1.2 Questions]

The VXLAN spec allows for two implementation types. One uses multicast. What is the other one called?

  • A. Non-multicast replication
  • B. BUM-Replication
  • C. Fore-end Replication
  • D. Head-end Replication
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Suggested Answer: B 🗳️
Reference:
https://eos.arista.com/vxlan-without-controller-for-network-virtualization-with-arista-physical-vteps/

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ivychang
3 years, 7 months ago
https://eos.arista.com/tag/head-end-replication/
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Smoothey
4 years ago
Unicast: As of EOS-4.13.0F, Arista supports unicast-based VXLAN (no multicast required) to support broadcast, unkown unicast and multicast traffic. This is called Head-End replication (HER)
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Abse
4 years, 8 months ago
There is no BUM replication, but BUM traffic. HER is triggered every time there's BUM traffic.
upvoted 1 times
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gksong
5 years, 1 month ago
there is only head-end replication. Head-end replication is a data distribution method that supports broadcast, unknown unicast, and multicast (BUM) traffic over VXLANs by replicating BUM data locally for transmission to the set of remote VTEPs specified by a flood list. This data flooding facilitates remote MAC address learning through the forwarding of data with unknown MAC addresses.
upvoted 4 times
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