Hi Ron, This sounds good to me. Thanks!
-- Carlos. On Aug 8, 2013, at 8:00 PM, Ronald Bonica <rbon...@juniper.net> wrote: > Folks, > > I think that we have agreed to the following: > > - We should include a reference to S5.3 of RFC 3168, reminding implementers > that when reassembling a packet, if any packet has ECN set, the reassembled > packet MUST have ECN set. While this may be orthogonal to the draft, it is > included as a courtesy. > > - We don't need to add any text about copying DSCP or ECN bits back and forth > between the payload and delivery headers, as this issues are beyond the scope > of the document. > > Have we in fact agreed on this? > > Ron > > >> -----Original Message----- >> From: Eggert, Lars [mailto:l...@netapp.com] >> Sent: Thursday, August 08, 2013 3:26 AM >> To: Carlos Pignataro (cpignata) >> Cc: Ronald Bonica; Bob Briscoe; Internet Area >> Subject: Re: [Int-area] draft-bonica-intarea-gre-mtu and ECN >> >> Hi, >> >> On Aug 7, 2013, at 22:18, Carlos Pignataro (cpignata) >> <cpign...@cisco.com> wrote: >>> In other words, noting S5.3 of RFC 3168 in draft-bonica-intarea-gre- >> mtu does not add as compared to not noting it -- the requirement >> already exists, and is applicable to any frag/reassembly, including >> GRE, any other tunnel, or any other protocol, as the ECN considerations >> at the IP layer. RFC 3168 specifies transport considerations for TCP >> and not for GRE also. >> >> you're correct. In practice, however, not everyone is familiar with the >> contents of all related RFCs when implementing a given protocol >> extension, and I think pointing implementors at relevant related specs >> - esp. when mandatory to support - is a courtesy. >> >>> Net-net, in my humble opinion, since draft-bonica-intarea-gre-mtu >> concerns itself with fragmentation strategies for GRE, these two ECN >> issues (ECN at reassembly and tunnels) seem orthogonal to the scope and >> goal of the document, and better dealt with in a separate place instead >> of intertwining them in draft-bonica-intarea-gre-mtu. >> >> Which document specifies the reassembly of fragments carried in GRE? >> >> Lars >
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