A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Loop Free DODAG Local Repair
Author(s) : Jianlin Guo
Philip Orlik
Ghulam Bhatti
Filename : draft-guo-roll-loop-free-dodag-repair-01.txt
Pages : 19
Date : 2013-04-02
Abstract:
IETF has been developing IPv6 based standards for Low-power and Lossy
Networks (LLNs) to meet requirements of constrained applications,
such as field monitoring, inventory control and so on. IPv6 Routing
Protocol for LLNs (RPL) has been published in [RFC6550]. Based on
routing metrics and constraints [RFC6551], RPL builds Directed
Acyclic Graph (DAG) topology to establish bidirectional routes for
LLNs for traffic types of multipoint-to-point, point-to-multipoint,
and point-to-point. RPL routes are optimized for traffic to or from
one or more roots that act as sinks. As a result, a DAG is
partitioned into one or more Destination Oriented DAGs (DODAGs), one
DODAG per sink. RPL is widely considered as a feasible routing
protocol for LLNs. However, DODAG loops caused by local DODAG repair
mechanism is an issues to be addressed. This draft introduces a loop
free local DODAG repair mechanism. This draft also introduces a
piggybacked data option for transferring delay sensitive data during
route repair process. The piggybacked data can be included in DODAG
Repair Request (DRQ) message or DODAG Information Solicitation (DIS)
message.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-guo-roll-loop-free-dodag-repair
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-guo-roll-loop-free-dodag-repair-01
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-guo-roll-loop-free-dodag-repair-01
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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