What term describes adding a value to the packet header, as close to the source as possible, so that the packet matches a defined policy?

Last Updated: May 9, 2026
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What term describes adding a value to the packet header, as close to the source as possible, so that the packet matches a defined policy?

  • policing
  • traffic marking
  • weighted random early detection (WRED)
  • traffic shaping
  • tail drop

Explanation: Traffic marking is the process of adding a specific value to the packet header (such as CoS at Layer 2 or DSCP at Layer 3). This allows subsequent network devices to identify the traffic class and apply defined forwarding policies accordingly. For maximum efficiency, marking should be performed as close to the source as possible to establish a trust boundary.

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