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[mpls-tp] 答复: Proposal of using GAL for PW

Pei Zhang(联通集团技术部) <hq-zhangp@chinaunicom.cn> Fri, 02 July 2010 01:04 UTC

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To: "Larry" <larryli888@yahoo.com.cn>, <mpls-tp@ietf.org>, <pwe3@ietf.org>
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Hi, 

I agree with Han's proposal. The CW on many equipments is option in our network. 



Pei Zhang
Technology Department, 
China Unicom Network Communications Group Company Limited
Mobile: +86-15601359026
E-Mail: hq-zhangp@chinaunicom.cn



-----邮件原件-----
发件人: mpls-tp-bounces@ietf.org [mailto:mpls-tp-bounces@ietf.org] 代表 Larry
发送时间: 2010年6月30日 17:38
收件人: mpls-tp@ietf.org; pwe3@ietf.org
抄送: lihan@chinamobile.com
主题: [mpls-tp] Proposal of using GAL for PW

Dear all:

    In section 4.2 in RFC5586, it is defined that GAL MUST NOT be used with PWs in MPLS-TP. The PWE3 control word [RFC4385] MUST be present when the ACH is used to realize the associated control channel.
    In real application, a lot of MPLS and MPLS-TP equipments do not support control word. It is proposed to use the GAL to identify associated control channel in PW layer.

Best regards,

                Han Li

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Han Li, Ph.D 
China Mobile Research Institute
Unit 2, 28 Xuanwumenxi Ave, Xuanwu District, Beijing 100053, China 
Fax: +86 10 63601087 
MOBILE: 13501093385 
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