Re: NATFW issue: Lifetime error messages
Hannes Tschofenig <[email protected]>
| Newsgroups | gmane.ietf.nsis |
|---|---|
| Message-ID | <[email protected]> |
I am OK with the suggested change. Adding two error codes to make the situation clearer seems to be a good idea. Ciao Hannes Martin Stiemerling wrote: > [writing with chair's hat off, i.e., as NATFW NSLP author only!] > > Hi, > > I do assume that everybody is also fine with this proposed change. > > If not, please speak up now! > > Thanks, > > Martin (as NATFW NSLP author) > > Am 24.01.2008 11:39 Uhr schrieb "Martin Stiemerling" unter > <[email protected]>: > > >> [writing with chair's hat off, i.e., as NATFW NSLP author only!] >> >> Hi all, >> >> When reading Section 3.4. Calculation of Signaling Session Lifetime I >> stumbled over the error messages send when NFs or the NR reject the session >> lifetime. >> >> Currently, there are two error codes (thus also cases) defined: >> 0x02: Requested lifetime is too big. >> 0x10: Requested lifetime is too small. >> >> These two error cases are used to tell the NI whether the requested lifetime >> has an issue *and* if the by an NF/NR modified lifetime has an issue (see >> Section 3.4 before figure 12). This is a bit overloaded, as the NI eventually >> cannot tell whether his lifetime proposal was bad or if the en-route changed >> lifetime as bad. >> >> My change proposal: >> Keep these error codes 0x02 and 0x10 for rejection of NI's lifetime proposal >> and add two new error codes for rejection of a modified lifetime: >> 0xXY: Modified lifetime is too big. >> 0xSD: Modified lifetime is too small. >> (0xXY and 0xSD must be replaced by real number later on) >> >> Those messages are generated as an error response if one of the NFs or the NR >> has changed in away that other NFs cannot accept it anymore. This, at least, >> gives the NI the hint that the NFs/NR on the way have some trouble on agreeing >> a lifetime value. >> >> >> Martin >> >> >> [email protected] >> >> NEC Laboratories Europe - Network Research Division >> >> NEC Europe Limited | Registered Office: NEC House, 1 Victoria Road, London W3 >> 6BL | Registered in England 2832014 >> >> >> >> >> _______________________________________________ >> nsis mailing list >> [email protected] >> https://www1.ietf.org/mailman/listinfo/nsis >> > > > > > ------------------------------------------------------------------------ > > _______________________________________________ > nsis mailing list > [email protected] > https://www1.ietf.org/mailman/listinfo/nsis >