[Lsr] draft-ietf-ospf-yang

[tom petch <[e-mail]>]

The router id in this I-D confuse me.

RFC8294 defines
     typedef router-id { type yang:dotted-quad;

ospf-yang defines
 leaf ipv4-router-id { type inet:ipv4-address;

draft-ietf-teas-yang-te-types defines
  typedef te-node-id {     type yang:dotted-quad;
 ...       This attribute is mapped to Router ID ....

Three different YANG types for a router id.

Why?

Behind this, ospf-yang gives as references for a router te id
RFC3630(V2) and RFC5329(V3).  Reading these, my take is that a router id
is needed for te but that the existing id should be used where possible
i.e. creating an additional identifier for the same instance of the same
entity is A Bad Thing (which sounds like a good general principle).
With two objects in the lsr protocols, that would appear to make at
least three identifiers for the same instance of the same entity.

Why?

I copy Stephane on this since the same issues apply to the other lsr
protocol, mutatis mutandi.

Tom Petch