What overhead?

Look at variant 1.

IMO, it is not useful to take on a new WG item that directly competes with an 
existing one that is a superset already.

Joe

> On May 16, 2018, at 8:22 PM, 徐小虎(义先) <[email protected]> wrote:
> 
> It doesn't matter whether or not it's already there. IMHO, given the 
> popularity of different overlay technologies such as VXLAN and MPLS-in-UDP in 
> practice, GUE initially and mainly targeted as a DC overlay approach has 
> little change to be widely deployed within data centers. 
> 
> As such, if the only possible applicability of GUE is for directly carrying 
> IP over UDP, I don't understand why we need such a overhead associated with 
> the variation of GUE. In another word, why not directly assign a port to 
> indicate IP-in-UDP, instead of using the GUE protocol variant number to 
> indicate. By the way, this the GUE protocol variant number usage reminds me 
> of the notorious misuse of the first nibble of the MPLS payload to indicate 
> the type of the MPLS payload:)
> 
> Xiaohu
> 
> 
> ------------------------------------------------------------------
> From:Joe Touch <[email protected]>
> Send Time:2018年5月16日(星期三) 15:45
> To:徐小虎(义先) <[email protected]>
> Cc:Tom Herbert <[email protected]>; Internet Area <[email protected]>; 
> intarea-chairs <[email protected]>; draft-xu-intarea-ip-in-udp 
> <[email protected]>
> Subject:Re: [Int-area] 回复: Request a WG adoption call for 
> draft-xu-intarea-ip-in-udp
> 
> It’s not complex. It’s already there. So there continues to be no reason to 
> waste either a port number or further time discussing this draft.
> 
> Joe
> 
> On May 15, 2018, at 9:01 PM, 徐小虎(义先) <[email protected]> wrote:
> 
> IMHO,there seems no need to introduce such complexity into GUE just for the 
> purpose of saving one port number.
> 
> Xiaohu 
> 
> 
> 
> 
> 
> 来自钉钉专属商务邮箱
> ------------------------------------------------------------------
> 发件人:Tom Herbert<[email protected]>
> 日 期:2018年05月16日 11:55:49
> 收件人:徐小虎(义先)<[email protected]>
> 抄 送:Erik Kline<[email protected]>; Internet Area<[email protected]>; 
> draft-xu-intarea-ip-in-udp<[email protected]>; 
> intarea-chairs<[email protected]>
> 主 题:Re: [Int-area] Request a WG adoption call for draft-xu-intarea-ip-in-udp
> 
> On Tue, May 15, 2018 at 8:33 PM, 徐小虎(义先) <[email protected]> wrote:
> > Hi Eric,
> >
> > Good question. This draft (draft-xu-intarea-ip-in-udp) describes a native
> > UDP encapsulation scheme for IP packets, which is straightforward and
> > light-weighted, just as MPLS-in-UDP [RFC7510] and TRILL-in-UDP
> > (https://tools.ietf.org/html/draft-ietf-trill-over-ip-16#page-20) and etc.
> >
> GUE variant 1 implements native UDP encapsulation for IPv4 and IPv6.
> Except for a different port number, there is no protocol difference
> between that and doing IP in UDP as separate protocol.
> 
> Tom
> 
> 
> > Best regards,
> > Xiaohu
> >
> > ------------------------------------------------------------------
> > From:Erik Kline <[email protected]>
> > Send Time:2018年5月16日(星期三) 11:07
> > To:徐小虎(义先) <[email protected]>
> > Cc:intarea-chairs <[email protected]>;
> > draft-xu-intarea-ip-in-udp <[email protected]>;
> > Internet Area <[email protected]>
> > Subject:Re: [Int-area] Request a WG adoption call for
> > draft-xu-intarea-ip-in-udp
> >
> > Should this document make some comment about its relation, or lack of
> > relation, to https://tools.ietf.org/html/draft-ietf-intarea-gue ?
> > On Wed, 16 May 2018 at 11:53, 徐小虎(义先) <[email protected]>
> > wrote:
> >
> >> Hi co-chairs,
> >
> >> We would like to request a WG adoption call for this draft (
> > https://tools.ietf.org/html/draft-xu-intarea-ip-in-udp-07) since it has
> > been stable enough and the solution as described in this draft is needed in
> > practice.
> >
> >> Best regards,
> >> Xiaohu (on behalf of all co-authors)
> >> _______________________________________________
> >> Int-area mailing list
> >> [email protected]
> >> https://www.ietf.org/mailman/listinfo/int-area
> >
> >
> >
> > _______________________________________________
> > Int-area mailing list
> > [email protected]
> > https://www.ietf.org/mailman/listinfo/int-area
> >
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