Requirement to stop sending RAs when in STATE-SUITABLE - why?

[EskoDijk]

Current text has for STATE-SUITABLE:

 When entering this state, if the router MUST discontinue treating the interface as an Advertising Interface as
          described in <xref target="RFC4861" section="6.2.2"/>, if it has been doing so.</t>

However, the discontinue requirement also prohibits the sending of RAs with RIO to advertise the route to the stub network's prefix. So this requirement seems incorrect - I assume a route to the stub network's prefix will always be advertised.

Also "the router" should be reworded as "the stub router" to avoid ambiguity.

[EskoDijk]

FYI @Abhayakara

[alan-eero]

when entering in STATE-SUITABLE , the stub-router has two options:

1. Send stub router RAs with only RIO.
2. Send stub router RAs with both PIO (lifetime=0) and RIO. where PIO is the stub.router own PIO (not to confuse with the discovered suitable on-link prefix)

[EskoDijk]

@alan-eero On option 2: I believe that what you mean here is already done in STATE-DEPRECATING - basically once a PIO prefix that had lifetime=30 min is deprecating, it gets advertised with a < 30 minutes time that decreases all the time until it's less than RA_BEACON_INTERVAL. At that point it stops including the PIO.

So there's no need to include PIO while in STATE-SUITABLE.

[Abhayakara]

This probably relates to the "active SNAC router" question.

[Abhayakara]

Fixed by 60-stop-sending-ras-state-usable