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XMC Archive backups of EXOS switches fail due to the SCP session stalling

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TitleXMC Archive backups of EXOS switches fail due to the SCP session stalling
Symptoms
  • Scheduled archive backups time out due to the SCP session stalling
  • The switch remains online
  • Problem may occur intermittently
Environment
  • XMC
  • Summit
  • EXOS
Cause
  • SCP session is stalled due to disruption of network traffic
  • XMC does not have any means of detecting stalls, so after 600 seconds, the script will abort
Resolution
Given the way EXOS and XMC operate, the only solution is resolve the cause of the stall, by identifying the reason for the SCP traffic loss.

It was considered to allow XMC scripts to be broken up into individually abortable sub-components, but judged not to be feasible.
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