A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : iPRP: Parallel Redundancy Protocol for IP Networks
Authors : Miroslav Popovic
Maaz Mohiuddin
Jean-Yves Le Boudec
Dan-Cristian Tomozei
Filename : draft-popovic-iprp-00.txt
Pages : 19
Date : 2015-08-10
Abstract:
Reliable packet delivery within stringent delay-constraints is of
paramount importance to industrial processes with hard real-time
constraints, such as electrical grid monitoring. Because
retransmission and coding techniques counteract the delay
requirements, reliability is achieved through replication over
multiple fail-independent paths. Existing solutions such as the
parallel redundancy protocol (PRP) replicate all packets at the MAC
layer over parallel paths. PRP works best in local area networks,
e.g., sub-station networks. However, it is not viable for IP-layer
wide-area networks which are key elements of emerging smart grids.
Such a limitation on scalability, coupled with lack of security, and
diagnostic inability, renders it unsuitable for reliable data-
delivery in smart grids. To address this issue, a transport-layer
design: IP parallel redundancy protocol (iPRP) is presented.
Designing iPRP poses non-trivial challenges in the form of selective
packet-replication, soft-state and multicast support. In addition to
unicast, iPRP supports multicast, widely used in smart-grid networks.
It replicates only time-critical UDP traffic. iPRP only requires a
simple software installation on the end-devices. There are no other
modifications needed to the existing monitoring application, end-
device operating system or to the intermediate network devices. iPRP
has a set of diagnostic tools for network debugging. With an
implementation of iPRP in Linux, it is shown that iPRP supports
multiple flows with minimal processing-and-delay overhead. It is
publicly available and is currently being installed in the EPFL
campus smart-grid.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-popovic-iprp/
There's also a htmlized version available at:
https://tools.ietf.org/html/draft-popovic-iprp-00
Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
_______________________________________________
I-D-Announce mailing list
I-D-Announce@ietf.org
https://www.ietf.org/mailman/listinfo/i-d-announce
Internet-Draft directories: http://www.ietf.org/shadow.html
or ftp://ftp.ietf.org/ietf/1shadow-sites.txt
