does router strip dscp/af markings

[Ahmed Dockrat]

Hi

If I don't have any service policies configure to honour or set dscp/af markings on a cisco routers interface with standard config, will the router strip off any existnig qos marking as it routes the packet out.

thanks

[Karsten Iwen · Accepted solution]

No, the router doesn't modify the DSCP-values in your case. It could be different when you have a switch where QoS is enabled, but not completely configured. There you have the chance that all DSCP-values are remarked to 0 when the incoming port is untrusted.

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[Ahmed Dockrat]

Thanks