Subject: [Roll] ticket for handling asymmetric link metrics

From: Richard Kelsey <[email-masked]>
Date: Wed, 31 Mar 2010 17:34:17 -0400

JP,

An issue has come up that I think merits a ticket.

In a network with asymmetric links, DODAGs can be formed to
optimize upward, downward, or bidirectional routes.  There
needs to be some way to indicate how asymmetric link metrics
are to be used when forming a particular DODAG.  A DODAG
meant for routing upwards would want to use the upward
metric values, for example.  A DODAG meant for use in both
directions might want the average of the upward and downward
values, or the max or min, depending on the metric.

                          -Richard Kelsey