Importance

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Abstract

There is provided a technique of time-sensitive transmission of Ethernet traffic in IET-blind network. A source endpoint network node receives expedited and non-expedited Ethernet frames; for each non-expedited Ethernet frame: detects a pre-provisioned designated non-expedited tunnel with a destination endpoint network node corresponding to a destination address specified in the Ethernet frame, segments non-expedited Ethernet frame into a plurality of segments, encapsulates each segment in accordance with the designated non-expedited tunnel; and sends the encapsulated segments to the destination endpoint network node via the designated non-expedited tunnel. When the designated non-expedited tunnel is constituted by a plurality of successive sub-tunnels (e.g. corresponding to a PDU-session of 5G), the technique further comprises initial encapsulating each segment in accordance with a first of successive sub-tunnels and, when swapping to a next sub-tunnel, relaying the encapsulation of each segment according to a network protocol characterizing the next sub-tunnel.

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First Claim