> -----邮件原件----- > 发件人: Henderickx, Wim (Wim) [mailto:[email protected]] > 发送时间: 2013年11月25日 14:29 > 收件人: Xuxiaohu; [email protected] > 抄送: [email protected] > 主题: Re: 答复: New Version Notification for > draft-xu-l3vpn-virtual-subnet-02.txt > > It is not about TTL 1, no TTL decrement should happen for intra-subnet > forwarding at all On top you need to modify the data-plane to achieve this, > since it now needs to find out if it is intra or inter subnet where current > PE(s) > don’t have to do this.
Sure, it needs some change to the implementation of PE routers. That's why we need a draft to specify the implementation requirements. > On 25/11/13 07:22, "Xuxiaohu" <[email protected]> wrote: > > >Wim, > > > >It said clearly "if the source and destination addresses of a packet > >whose TTL is set to 1 belong to the same extended subnet, both ingress > >and egress PE routers MUST NOT decrement the TTL of such packet." Did > >you doubt that the PE routers could know whether the source and > >destination address belong to the same extended subnet? > > > >Xiaohu > > > >> -----邮件原件----- > >> 发件人: Henderickx, Wim (Wim) > [mailto:[email protected]] > >> 发送时间: 2013年11月25日 14:08 > >> 收件人: Xuxiaohu; [email protected] > >> 抄送: [email protected] > >> 主题: Re: New Version Notification for > >>draft-xu-l3vpn-virtual-subnet-02.txt > >> > >> On the TTL issue I believe this is not addressing the issue. We can > >>say don’t decrement but when and how will the PE(s) do or don’t. > >> > >> On 25/11/13 03:22, "Xuxiaohu" <[email protected]> wrote: > >> > >> >Hi all, > >> > > >> >Major changes since the -01 version include: > >> > > >> >1) add a section about TTL consideration; > >> >2) remove the section of PE Router FIB Reduction; > >> >3) remove the section of PE Router RIB Reduction; > >> > > >> >Any further comments are welcome. BTW, the removed sections as > >> >mentioned above would be described in separate docs. > >> > > >> >Best regards, > >> >Xiaohu > >> > > >> >> -----邮件原件----- > >> >> 发件人: [email protected] [mailto:[email protected]] > >> >> 发送时间: 2013年11月25日 10:10 > >> >> 收件人: Brendan Fee; Susan Hares; Fan Yongbing; Xuxiaohu; Xuxiaohu; > >> >>Christian Jacquenet; Truman Boyes; Yongbing Fan > >> >> 主题: New Version Notification for > >> >>draft-xu-l3vpn-virtual-subnet-02.txt > >> >> > >> >> > >> >> A new version of I-D, draft-xu-l3vpn-virtual-subnet-02.txt > >> >> has been successfully submitted by Xiaohu Xu and posted to the > >> >>IETF repository. > >> >> > >> >> Filename: draft-xu-l3vpn-virtual-subnet > >> >> Revision: 02 > >> >> Title: Virtual Subnet: A L3VPN-based Subnet Extension Solution > >> >> Creation date: 2013-11-25 > >> >> Group: Individual Submission > >> >> Number of pages: 13 > >> >> URL: > >> >> > >>http://www.ietf.org/internet-drafts/draft-xu-l3vpn-virtual-subnet-02.t > >>xt > >> >> Status: > >> >>http://datatracker.ietf.org/doc/draft-xu-l3vpn-virtual-subnet > >> >> Htmlized: > >> >>http://tools.ietf.org/html/draft-xu-l3vpn-virtual-subnet-02 > >> >> Diff: > >> >> http://www.ietf.org/rfcdiff?url2=draft-xu-l3vpn-virtual-subnet-02 > >> >> > >> >> Abstract: > >> >> This document describes a Layer3 Virtual Private Network (L3VPN)- > >> >> based subnet extension solution referred to as Virtual Subnet, > >>which > >> >> can be used as a kind of Layer3 network virtualization overlay > >> >> approach for data center interconnect. > >> >> > >> >> > >> >> > >> >> > >> >> Please note that it may take a couple of minutes from the time of > >> >>submission until the htmlized version and diff are available at > >> >>tools.ietf.org. > >> >> > >> >> The IETF Secretariat > >> > > >
