Subject: Re: [mpls] New Version Notification for draft-ietf-mpls-in-udp-02.txt

From: Xuxiaohu <[email-masked]>
Date: Sun, 9 Jun 2013 02:23:42 +0000

Hi all,

A new version of I-D, draft-ietf-mpls-in-udp-02.txt is available now.

One technical change from the previous version is: only a single UDP destination port number is now required to indicate MPLS, instead of requiring two port numbers to indicate upstream-assigned MPLS and downstream-assigned MPLS respectively. As for whether the top label in the MPLS label stack is downstream-assigned or upstream-assigned, it SHOULD be determined based on the tunnel destination IP address. That is to say, if the destination IP address is a multicast address, the top label SHOULD be upstream-assigned, otherwise if the destination IP address is a unicast address, it SHOULD be downstream-assigned.

Any comments and suggestions are welcome.

Best regards,
Xiaohu (on behalf of all co-authors of this doc)

> -----邮件原件-----
> 发件人: [email-masked] [mailto:[email-masked]]
> 发送时间: 2013年6月9日 10:11
> 收件人: Nischal Sheth; Lucy yong; Xuxiaohu; Fan Yongbing; Xuxiaohu; Carlos
> Pignataro; Yongbing Fan
> 主题: New Version Notification for draft-ietf-mpls-in-udp-02.txt
> 
> 
> A new version of I-D, draft-ietf-mpls-in-udp-02.txt
> has been successfully submitted by Xiaohu Xu and posted to the
> IETF repository.
> 
> Filename:	 draft-ietf-mpls-in-udp
> Revision:	 02
> Title:		 Encapsulating MPLS in UDP
> Creation date:	 2013-06-09
> Group:		 mpls
> Number of pages: 9
> URL:
> http://www.ietf.org/internet-drafts/draft-ietf-mpls-in-udp-02.txt
> Status:          http://datatracker.ietf.org/doc/draft-ietf-mpls-in-udp
> Htmlized:        http://tools.ietf.org/html/draft-ietf-mpls-in-udp-02
> Diff:            http://www.ietf.org/rfcdiff?url2=draft-ietf-mpls-in-udp-02
> 
> Abstract:
>    Existing technologies to encapsulate Multi-Protocol Label Switching
>    (MPLS) over IP are not adequate for efficient load balancing of MPLS
>    application traffic, such as MPLS-based Layer2 Virtual Private
>    Network (L2VPN) or Layer3 Virtual Private Network (L3VPN) traffic
>    across IP networks. This document specifies additional IP-based
>    encapsulation technology, referred to as MPLS-in-User Datagram
>    Protocol (UDP), which can facilitate the load balancing of MPLS
>    application traffic across IP networks.
> 
> 
> 
> 
> The IETF Secretariat