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For encrypted flows, how does the MPLS do the QOS?

After encrypting the data, send them to MPLS, how does the MPLS do the QOS?

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Re: For encrypted flows, how does the MPLS do the QOS?

Hi,

the IPSec standard mandates, that the ToS Byte from the original header is copied to the new IPSec header. So if your IP packets are already marked everything is straight forward - MPLS does not make any difference. For the MPLS network it will be just marked IP packets and the marking is copied to the MPLS experimental bits. QoS policies within an MPLS core only use experimental bits only.

Regards, Martin

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