Folks, we'd like to address a few received and remaining questions and comments on the discussed mobile traffic steering work and the associated draft (https://datatracker.ietf.org/doc/draft-liebsch-dmm-mts/) before IETF122.
The question was "Relationship to N6-intf 'router' on traffic steering: how the N6-intf 'router' may interact with the TN ?" The question applies to a 3GPP reference points N6, which is between the User Plane Anchor (UPA) and the Transport Network (TN) towards the Data Network. The updated draft defines clearly the reference point where it applies, which is between a dedicated controller in the TN and the mobile communication system (MCS) control plane, as well as between a TN's Data Plane Node (DPN) such as a router and the MCS's UPA. These two associated interfaces can be used to interact between the MCS and the TN. For details please refer to section 6 of https://datatracker.ietf.org/doc/draft-liebsch-dmm-mts/, where we explain three operational modes for such interworking based on a dedicated controller in the TN and/or a decentralized control plane, such as BGP. Please let us know in case you have more comments or questions. marco
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