Technical Summary
This document specifies an optional extension to the OSPF protocol,
to represent the metric on a multi-access network as two parts: the
metric from a router to the network, and the metric from the network
to the router. The router to router metric would be the sum of the
two.
Working Group Summary
As defined in RFC 2328 and RFC 5340, in traditional broadcast network,
router-lsa includes a metric defining interface output cost but not the
network-lsa. RFC 6845 defines a mechanism to allow a broadcast network
to work as a hybrid of broadcast and point-to-multipoint networks to
allow accurate representation of the cost of communication between different
routers on the network.
This document proposes an enhancement by adding a “Network-to-Router” metric,
and it reduces the size and the number of updates of router-lsa.
The extensions for OSPFv3's Extended LSAs was removed from the document after
IETF Last Call to remove the normative dependency. OSPFv3 Extended LSAs still need
an implementation to have certainty to progress that work.
There has been an IPR disclosure: https://datatracker.ietf.org/ipr/2287/
All authors indicated during the WG adoption poll that they knew of no
other IPR on the draft. Tom McMillan could not reply to the second IPR
poll due to a medical leave.
Document Quality
This document has been a WG document for more than one year.
It is stable, without changes to the OSPFv2 technical solution for more
than one year.
Personnel
Yingzhen Qu is the Document Shepherd.
Alia Atlas is the Responsible Area Director.