A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Distributed Mobility Management WG of the IETF.
Title : Mobility aware Transport Network Slicing for 5G
Authors : Uma Chunduri
John Kaippallimalil
Sridhar Bhaskaran
Jeff Tantsura
Praveen Muley
Filename : draft-ietf-dmm-tn-aware-mobility-05.txt
Pages : 27
Date : 2022-10-19
Abstract:
Slices in a 5G system should be identified and mapped to the
corresponding transport network underlay segments to provide the
capabilities requested by the 5G customer. One set of slices in a 5G
system correspond to resources and connectivity to carry signaling
and data plane packets across a distributed infrastructure that make
up the 5G system, for example, distributed entities of a radio
network (gNB). Another set of 5G slices represent resource and
connectivity capabilities offered by the 5G system to its end users
(UE) for the lifetime of a session including UE mobility. Both
depend in part on multiple transport network slice segments with
requirements that include bandwidth, latency, and criteria such as
isolation, directionality, and disjoint routes.
This document describes how a 5G slice is mapped to a slice in IP or
Layer 2 transport network for both above cases, including scenarios
where the 5G customer network is separated from the provider
transport network by an intermediate network. Mobile slice criteria
are mapped to the appropriate transport slice and capabilities
offered in backhaul, mid-haul and fronthaul connectivity segments
between radio side network functions and user plane
function(gateway). Applicability of this framework and underlying
transport networks, which can enable different slice properties are
also discussed. This is based on mapping between mobile and
transport underlays (L2, Segment Routing, IPv6, MPLS and IPv4).
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-dmm-tn-aware-mobility/
There is also an htmlized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-dmm-tn-aware-mobility-05
A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-dmm-tn-aware-mobility-05
Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts
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