Technical Summary
On a multi-access network, one of the PIM-SM routers is elected as a
Designated Router. One of the responsibilities of the Designated
Router is to track local multicast listeners and forward data to
these listeners if the group is operating in PIM-SM. This document
specifies a modification to the PIM-SM protocol that allows more than
one of the PIM-SM routers to take on this responsibility so that the
forwarding load can be distributed among multiple routers.
Working Group Summary
There was very thorough review by the WG; there were many comments
and all were addressed. This document has been in process for several years,
and was sent to the IESG for publication twice (with a 4-year difference) due
to concerns by the AD.
Document Quality
There is one implementation of the specification.
Personnel
Mike McBride is the document shepherd and Alvaro Retana is the responsible Area Director.