RE: [PCN] Re: WG Review: Congestion and Pre-Congestion Notification(pcn)

2007-02-28 Thread Georgios Karagiannis
Hi Pekka Regarding your following remark: However, to be clear, I have no objection to using the ECN field(s) if that does not hinder the current use (or lack thereof) of ECN. What I specifically don't want is to define new fields for PCN, especially extension headers or IP options. I should

RE: [PCN] Re: WG Review: Congestion and Pre-Congestion Notification(pcn)

2007-02-28 Thread Black_David
Pekka, [logical components being:] encoding and transport along forward path from marker to egress, metering of congestion information at the egress, and transport of congestion information back to the controlling ingress. I'd like to see it explicitly stated that transporting

RE: [PCN] Re: WG Review: Congestion and Pre-Congestion Notification(pcn)

2007-02-28 Thread Georgios Karagiannis
Karagiannis Cc: Pekka Savola; [EMAIL PROTECTED]; [EMAIL PROTECTED]; iesg@ietf.org; ietf@ietf.org 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

Re: [PCN] Re: WG Review: Congestion and Pre-Congestion Notification(pcn)

2007-02-21 Thread Lars Eggert
On 2007-2-20, at 11:51, ext Pekka Savola wrote: It seems that are assuming the transport needs to happen in the packet itself. While this is a possible approach, I don't see that it needs to be the only one. For example, a mechanism where the mutually trusting network components would

Re: [PCN] Re: WG Review: Congestion and Pre-Congestion Notification(pcn)

2007-02-21 Thread Brian E Carpenter
On 2007-02-20 15:31, Fred Baker wrote: 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

RE: [PCN] Re: WG Review: Congestion and Pre-Congestion Notification(pcn)

2007-02-20 Thread Pekka Savola
On Mon, 19 Feb 2007, [EMAIL PROTECTED] wrote: [logical components being:] encoding and transport along forward path from marker to egress, metering of congestion information at the egress, and transport of congestion information back to the controlling ingress. I'd like to see it explicitly

Re: [PCN] Re: WG Review: Congestion and Pre-Congestion Notification(pcn)

2007-02-20 Thread Fred Baker
On Feb 20, 2007, at 4:51 AM, Pekka Savola wrote: It seems that are assuming the transport needs to happen in the packet itself. While this is a possible approach, I don't see that it needs to be the only one. For example, a mechanism where the mutually trusting network components would

Re: [PCN] Re: WG Review: Congestion and Pre-Congestion Notification(pcn)

2007-02-20 Thread Fred Baker
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.