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linux-cloud-router/docs/metrics.md
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Metrics

Charts of the router over the last hour, day, month or year, read every minute by default (see Settings).

Charts

  • CPU, memory, free disk space in bytes and in percent, and the load averages.
  • Bytes per second of each interface, and the VPN clients.
  • Per site-to-site connection: Site-to-site up, Site-to-site traffic and Site-to-site packets.

Controls

  • Hour, Day, Month, Year: the period shown.
  • Average, Maximum: how each point sums up its time slot. Site-to-site up is always the percentage of the slot the connection was up: 5 minutes for an hour, 1 hour for a day, 1 day for a month and 1 month for a year.
  • Legend: a click on a line's legend item hides or shows the line, for example the 1 and 5 minute load averages to see the 15 minute one. The browser keeps the hidden lines.
  • The charts fold, hide, move and change width as the Router panels do, with a layout of their own.