Hi Fred I think that one of the goals of the PCN WG will be to investigate the implications of using ECN and/or DSCP for PCN encoding purposes. Best Regards, Georgios > -----Original Message----- > From: Fred Baker [mailto:fred@xxxxxxxxx] > Sent: dinsdag 20 februari 2007 15:31 > To: Georgios Karagiannis > Cc: Pekka Savola; Black_David@xxxxxxx; pcn@xxxxxxxx; > iesg@xxxxxxxx; ietf@xxxxxxxx > Subject: Re: [PCN] Re: WG Review: Congestion and > Pre-Congestion Notification(pcn) > > > On Feb 20, 2007, at 8:15 AM, Georgios Karagiannis wrote: > > > I assume that you also have no objection on using the DSCP > fields for > > this purpose. > > actually, I do, at least in some ways that they might be > used. The AF service (RFC 2597) is specifically designed to > do as you say; EF isn't. setting the DSCP on an EF packet in > a way that nullifies its EF behavior to communicate the onset > of congestion mostly nullifies the EF service (which doesn't > actually do much of anything when there is no congestion to > perturb packet timing). So I would want any use of the DSCP > to be coordinated with the other services that the datagram hopes for. > _______________________________________________ Ietf@xxxxxxxx https://www1.ietf.org/mailman/listinfo/ietf