Hi all, This topic may be interesting to L2VPN, L3VPN and even NVo3 folks.
Any comments are welcome. Best regards, Xiaohu/ Marshall/Lucy > -----邮件原件----- > 发件人: Xuxiaohu > 发送时间: 2012年4月28日 10:55 > 收件人: '[email protected]' > 抄送: '[email protected]'; Lucy yong > 主题: fwd: New Version Notification for draft-xu-mpls-in-udp-00.txt > > Hi all, > > Equal Cost Multi-Path (ECMP) and Link Aggregation Group (LAG) are widely used > in the core of IP-enabled Packet Switch Networks (PSN) for load-balancing > purposes. Most core routers (i.e., P routers) in the IP-enabled PSN are > capable of > load-balancing IP traffic flows across ECMP paths and/or LAG based on the hash > of the five-tuple of UDP/TCP packets (i.e., source IP address, destination > IP > address, source port, destination port, and protocol) or some fields in the IP > header of non-UDP/TCP packets (e.g., source IP address, destination IP > address). > > However, with existing IP-based encapsulation methods as defined in [RFC4023] > such as MPLS-in-IP and MPLS-in-GRE, distinct customer traffic flows of various > MPLS applications (e.g., MPLS-based L2VPN or L3VPN) between a given PE pair > would be encapsulated with the same IP or GRE tunnel header prior to > traversing > the core. Since the encapsulating traffic is neither TCP nor UDP traffic, core > routers could only perform hash calculation on the fields in the IP header of > IP or > GRE tunnels. As a result, core routers could not achieve an effective > load-balancing for these traffic flows in the network due to the lack of > adequate > entropy information. > > This document specifies one additional IP-based encapsulation technology for > MPLS packets referred to as MPLS-in-UDP, which is intended to facilitate > load-balancing the traffic of various MPLS applications such as MPLS-based > L2VPN > and L3VPN in the core of IP-enabled PSN. > > Any comments are welcome. > > Best regards, > Xiaohu > > -----邮件原件----- > 发件人: [email protected] [mailto:[email protected]] > 发送时间: 2012年4月28日 10:18 > 收件人: Xuxiaohu > 抄送: Lucy yong; [email protected] > 主题: New Version Notification for draft-xu-mpls-in-udp-00.txt > > A new version of I-D, draft-xu-mpls-in-udp-00.txt has been successfully > submitted by Xiaohu Xu and posted to the IETF repository. > > Filename: draft-xu-mpls-in-udp > Revision: 00 > Title: Encapsulating MPLS in UDP > Creation date: 2012-04-28 > WG ID: Individual Submission > Number of pages: 7 > > Abstract: > This document specifies one additional IP-based encapsulation > technology for MPLS packets referred to as MPLS-in-UDP, which is > intended to facilitate load-balancing the traffic of various MPLS > applications such as MPLS-based L2VPN and L3VPN in the core of IP- > enabled packet switch networks. > > > > > > The IETF Secretariat
