[Int-area] 答复: 答复: Is the UDP destination port number resource running out?// re: I-D Action: draft-ietf-intarea-gue-04.txt

Xuxiaohu <xuxiaohu@huawei.com> Sat, 20 May 2017 03:58 UTC

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From: Xuxiaohu <xuxiaohu@huawei.com>
To: Joe Touch <touch@isi.edu>, Tom Herbert <tom@herbertland.com>
CC: "int-area@ietf.org" <int-area@ietf.org>
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Date: Sat, 20 May 2017 03:57:48 +0000
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Hi Joe,

> -----邮件原件-----
> 发件人: Joe Touch [mailto:touch@isi.edu]
> 发送时间: 2017年5月20日 11:41
> 收件人: Xuxiaohu; Tom Herbert
> 抄送: int-area@ietf.org
> 主题: Re: [Int-area] 答复: Is the UDP destination port number resource running
> out?// re: I-D Action: draft-ietf-intarea-gue-04.txt
> On 5/19/2017 6:39 PM, Xuxiaohu wrote:
> > If the saving is beneficial, it'd better to assign a dedicated port
> > number for each UDP payload type( e.g., IP packet), rather than
> > combining the UDP port number dedicated for GUE and the version field
> > within the GUE header together to indicate whether the UDP payload is
> > GUE or IP (or even other payload type if the GUE is devoted to help
> > save the UDP port number resource for the IETF community:))
> FWIW, IANA strives to assign one port for a service.

Great. Hence IPvx should be taken as a service rather than taking IPvx and GUE as a service, IMO.

> Services are expected to have version fields and subtype demultiplexing
> indicators, to so that all message variants of current and future versions can use
> a single port number.

Sure, the version field within the IPvx packet could be used for demultiplexing purpose.

Best regards,

> Joe