This sounds interesting and I’m glad to see a place for this work to
be addressed in this community.
It does make me sad that PANARG (a proposed RG and kind of a BoF) is up
against IDEAS (an actual BoF). Indeed, the Venn diagram of path-aware
networking and identity-locator split have some overlap in my mind.
YMMV, of course.
—aaron
On 12 Jul 2017, at 2:21, Brian Trammell (IETF) wrote:
Greetings, all,
We'll be having a first meeting of the proposed Path Aware Networking
(PAN) RG at IETF 99 in Prague next week, 13:30 Wednesday in Congress
Hall 3. Since bringing path awareness to the endpoint has been the
focus, at least in part, of a couple of running TSV working groups
(MPTCP, TAPS), this RG seems to be of general interest to the
transport area. Olivier Bonaventure will give a review and overview
of research to date in this space, and Adrian Perrig will present a
fully path-aware Internet architecture, as an illustration of what is
possible when path-awareness is promoted to a first-order goal.
From our proposed charter
(https://datatracker.ietf.org/group/panrg/about):
The Internet architecture assumes a division between the end-to-end
functionality of the transport layer and the properties of the path
between the
endpoints. The path is assumed to be invisible, homogeneous, singular,
with
dynamics solely determined by the connectivity of the endpoints and
the Internet
control plane. Endpoints have very little information about the paths
over which
their traffic is carried, and no control at all beyond the destination
address.
Increased diversity in access networks, and ubiquitous mobile
connectivity, have
made this architecture's assumptions about paths less tenable.
Multipath
protocols taking advantage of this mobile connectivity begin to show
us a way
forward, though: if endpoints cannot control the path, at least they
can
determine the properties of the path by choosing among paths available
to them.
This research group aims to support research in bringing path
awareness to
transport and application layer protocols, and to bring research in
this space
to the attention of the Internet engineering and protocol design
community.
The scope of work within the RG includes, but is not strictly limited
to:
- communication and discovery of information about the properties of a
path on
local networks and in internetworks, exploration of trust and risk
models
associated with this information, and algorithms for path selection
at
endpoints based on this information.
- algorithms for making transport-layer scheduling decisions based on
information about path properties.
- algorithms for reconciling path selection at endpoints with widely
deployed
routing protocols and network operations best practices.
The research group's scope overlaps with existing IETF and IRTF
efforts, and
will collaborate with groups chartered to work on multipath transport
protocols
(MPTCP, QUIC, TSVWG), congestion control in multiply-connected
environments
(ICCRG), and alternate routing architectures (e.g. LISP), and is
related to
the questions raised in the multiple recent BoF sessions that have
addressed
path awareness and multiply-connected networks (e.g. SPUD, PLUS,
BANANA).
he PAN(P)RG intends to meet at each IETF meeting until a
determination is made whether or not to charter it. Afterward, the RG
intends to
meet at 1-3 IETF meetings per year, and hold one workshop per year,
colocated
with a related academic conference.
