Re: M3UA notify following ASP-up-ack
"David Laight" <[email protected]>
| Newsgroups | gmane.ietf.sigtran |
|---|---|
| Message-ID | <[email protected]> |
> yes, it should, provided this ASP Up Ack message follows the ASP transition > from ASP-Down to ASP-Inactive, see Section 4.3.4.5 of RFC 4666: > > "When an ASP moves from ASP-DOWN to ASP-INACTIVE within a particular AS, a > Notify message SHOULD be sent, by the ASP-UP receptor, after sending the > ASP-UP-ACK, in order to inform the ASP of the current AS state." That doesn't explain the presence of the 2nd (and 3rd) NOTIFY(AS-INACTIVE) in sections 5.1.3 (and 5.1.4). There is also the presumable assumption that they would be replaced by NOTIFY(AS-ACTIVE) if the AS is already active. If a NOTIFY() isn't generated followning every ASP-UP-ACK [1] then with slight reordering of the requests the example in 5.1.4 leaves the latter connections no idea of the actual AS state and whether they should be sending traffic. We don't send traffic until we've received an explicit indication of AS-ACTIVE. But on a loadshare config the latter connections aren't receiving the indication. David [1] or when the registration procedures finish. Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales) P Please consider the environment and don't print this e-mail unless you really need to