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HP Exam HPE2-W09 Topic 3 Question 51 Discussion

Actual exam question for HP's HPE2-W09 exam
Question #: 51
Topic #: 3
[All HPE2-W09 Questions]

A data center has a three-tier topology with ArubaOS-CX switches at each layer, is this a use case for implementing Virtual Switching Extension (VSX) at the core?

Solution: The customer wants to deploy a single control plane for the core fabric.

Show Suggested Answer Hide Answer
Suggested Answer: A

ERPS is a feature of ArubaOS-CX that prevents loops at layer 2 on ring networks1.ERPS uses a protocol called Ring Auto Protection Switching (RAPS) to detect link failures and perform fast traffic switchover1.ERPS has two timers that control the protection switching mechanism: guard timer and hold off timer1.The guard timer prevents false switching caused by delayed or lost RAPS PDUs1.The guard interval is set in units of 10 ms and should exceed the maximum expected delay for forwarding a frame around the complete ring1.This ensures that all switches on the ring receive the RAPS PDUs before the guard timer expires1. Therefore, this is a guideline for configuring timers for ERPS, and the correct answer is yes.For more information on ERPS and timers, refer to the Aruba Data Center Network Specialist (ADCNS) certification datasheet2and the ERPS Guide for your switch model1.


by Lorrine at Dec 27, 2023, 04:20 AM

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