On Thu, Feb 21, 2013 at 05:22:22PM +0000, Fred Baker (fred) wrote: [...snip...] > I have documented my approach, which provides the generalized concept, is > built into the routing protocols IS-IS and OSPF, and also addresses at least > one other "tagged routing" option, which is to look at flow labels. > > http://tools.ietf.org/html/draft-baker-ipv6-isis-automatic-prefix > "Automated prefix allocation in IS-IS", Fred Baker, 18-Feb-13 > > http://tools.ietf.org/html/draft-baker-ipv6-isis-dst-flowlabel-routing > "Using IS-IS with Role-Based Access Control", Fred Baker, 17-Feb-13 > > http://tools.ietf.org/html/draft-baker-ipv6-isis-dst-src-routing > "IPv6 Source/Destination Routing using IS-IS", Fred Baker, 17-Feb-13 > > http://tools.ietf.org/html/draft-baker-ipv6-ospf-dst-flowlabel-routing > "Using OSPFv3 with Role-Based Access Control", Fred Baker, 17-Feb-13 > > http://tools.ietf.org/html/draft-baker-ipv6-ospf-dst-src-routing > "IPv6 Source/Destination Routing using OSPFv3", Fred Baker, 17-Feb-13 > > http://tools.ietf.org/html/draft-baker-ipv6-ospf-extensible > "Extensible OSPF LSAs", Fred Baker, 17-Feb-13
While I did not exactly review or even thoroughly read the -ospf-extensible draft, I did just try to work with it in adding the null route idea to -ospf-dst-src-routing. I made these observations: - the two drafts share the "FIB Design" appendix. That shouldn't be in -extensible I presume? - the -extensible draft says absolutely nothing about how to handle unknown TLVs. I would suggest adding a bit to indicate mandatory / optional status, as done for example with BGP attributes. I'm not sure whether cutting down on possible TLV or length values is viable, so maybe a third TLV header byte needs to be added for this. - the -extensible draft references the source-prefix TLV. This seems OK in general, however in 3.1.1 IPv6 Destination Prefix TLV, "The IPv6 Destination Prefix TLV MAY be used with the IPv6 Source Prefix TLV, [...]" I believe it is somewhat weird to refer to a TLV that is not defined in that draft. Cheers, -David _______________________________________________ homenet mailing list [email protected] https://www.ietf.org/mailman/listinfo/homenet
