[OSPF] draft-atlas-ospf-mrt-02

["Russ White" <[e-mail]>]

Just one question/comment on this draft -- In section 6.1, MRT-Ineligible
Links TLV for OSPFv2, the draft says there should be a new TLV in the router
capabilities LSA that advertises links not to be included in the MRT
calculation (excluded links). I'm not certain why an option isn't used in
the LSA header for this, instead. Two things that seem strange to me:

- The exclusion of a link is a link property, not a router property, so I'm
not certain why this would be advertised as a property of the OSPF router.
This seems to muddy the line between router and properties and link
properties in a way that sets the stage for make the router capabilities
just another area into which to stuff various bits of information we can't
find a home for elsewhere.

- If you modify a specific link state, then you must advertise two TLVs, or
rather two LSAs, rather than one. Thus these two pieces of information must
be connected in a local database, but advertised separately, with all the
coordination/etc. that implies.

It seems like it might be better to move this bit of information into the
TLV where the actual link state is advertised in some way.

:-)

Russ