HPE2-W09 · Question #48
Is this a use case for disabling split-recovery mode on ArubaOS-CX switches in a Virtual Switching Extension (VSX) fabric? Solution: You want to prevent any possibility of a split brain situation…
The correct answer is A. Yes. Split-recovery mode is a feature of ArubaOS-CX that prevents traffic loss when the ISL goes out- of-sync and keepalive subsequently fails. This can happen if the ISL is restored after a failure but the VSX nodes are not synchronized. Split-recovery mode enables the secondary…
Question
Is this a use case for disabling split-recovery mode on ArubaOS-CX switches in a Virtual Switching Extension (VSX) fabric? Solution: You want to prevent any possibility of a split brain situation from occurring if the keepalive link fails some time after the ISL.
Options
- AYes
- BNo
How the community answered
(25 responses)- A76% (19)
- B24% (6)
Explanation
Split-recovery mode is a feature of ArubaOS-CX that prevents traffic loss when the ISL goes out- of-sync and keepalive subsequently fails. This can happen if the ISL is restored after a failure but the VSX nodes are not synchronized. Split-recovery mode enables the secondary switch to restore its VSX LAGs after 10 keepalive packets are missed, approximately 10 seconds after keepalive goes down. This avoids a split brain situation where both switches act as primary and forward traffic independently, causing loops and duplicate packets. Therefore, disabling split- recovery mode is not a use case for preventing split brain situations, and the correct answer is yes. For more information on split-recovery mode and VSX, refer to the Aruba Data Center Network Specialist (ADCNS) certification datasheet3 and the Virtual Switching Extension (VSX) Guide for your switch model.
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