VSX: ISL HA

The intent here is to showcase an inter-switch-link (ISL) link failover scenario where one of the two links between spine switches goes down, but ISL is still connected with single link.

The following image is a visualization of disconnected ISL link:

The following things are expected to be seen in this scenario:

  • After disconnecting one ISL, the VSX functionality should not be affected
  • A small percentage of packets will be dropped when disconnecting the cable where traffic is flowing; A sub second value is expected during this event
  • When connecting back the cable, the hashing needs to be recalculated and some packets may be dropped during this event as well; A sub second value is expected during this event

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