Subject: [Sigtran] Re: IPSTP for IPSP-IPSP communciation

From: "陈旭" <[email-masked]>
Date: Fri, 27 Jul 2007 16:51:37 +0800

Dear Asveren, Tolga,

	 Thank you for your reply!
     Our suggestion is  focus on the ASP-SG-ASP,and the similar to what once was described in M3UA SG-SG communication draft.  We can use M2PA between SGs,but we still have the problems in  ASP-SG-ASP  situation.

Best Regard
Chen Xu
China Mobile
[email-masked]

======= 2007-07-26 22:53:12 您在来信中写道：=======

>Chen Xu,
>
>(Changing the subject line for easier tracking)
>
>What you suggest seems similar to what once was described in M3UA SG-SG communication draft.
>
>Overall, I can understand the need for IPSTP type of functionality in big networks for ease of management. Similar relay type of functionality is present in some other IP based protocols as well. Diameter relay agents are a good example for that. 
>
>Considering that the goal is coming up with solutions addressing real life needs, I personally think this is something we need to investigate in the WG.
>
>   Thanks,
>   Tolga
>
>
>
>>  Problem description
>> 
>>  M3UA specification doesn$B!G(Jt  define signaling network  management
>>  function
>>  M3UA is designed for SG-IPSEP and IPSEP-IPSEP applications,
>>  therefore network level management function isn$B!G(Jt required.
>>  SSNM messages defined in M3UA are only used for interworking with SS7.
>>  China Mobile has a large number of subscribers and has built the
>>  largest soft-switch network in the world, its signaling network
>>  will be the multi-level and multi-area mode.
>>  It will has two signalling routeing  scene:IPSEP-IPSTP-IPSTP-IPSEP
>>  and IPSEP-IPSTP-IPSEP
>>  The interworking  function with MTP3 in M3UA can realize the
>>  signaling network  management for  IPSEP-IPSTP-IPSTP-IPSEP scene;
>>  Current M3UA  can not  realize the signaling network  management
>>  for  IPSEP-IPSTP-IPSEP scene.
>> 
>>  Requirement for Extension of RFC4666
>> 
>>  Define the Application for IPSTP-IPSEP interface.(Still uses SGP-
>>  ASP procedures)
>>  Define the signalling network management function$B!$(Jmessages ,and
>>  procedures.(Describe how to use SSNM messages to support signaling
>>  network management for IPSEP-(M3UA)-IPSTP-(M3UA)-IPSEP scene. )

= = = = = = = = = = = = = = = = = = = =

　　　　　　　　致
礼！
 
	陈旭
----------------------------------------
中国移动通信研究院
核心网研究所
地址：北京市宣武区西便门内大街53号甲,100053
电话：66006688－3163
手机：13701142467
邮件：[email-masked]

2007-07-27
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