Re: RE: [P2PSIP] Open issues with client has multiple associated peers

Please see my inputs inline [RRR]

----- Original Message -----
From: Song Yongchao 
Date: Tuesday, January 29, 2008 6:06
Subject: RE: [P2PSIP] Open issues with client has multiple associated peers
To: 'Song Yongchao' , 'P2PSIP Mailing List' 

> I need to modify the second question to make it more clear.
> 
> I think most proposals agree that one client can have multiple 
> associatedpeers to keep the service continuity. The open issues are:
> 
> (1) Should there be a primary associated peer? And when this peer 
> fails, the
> client switches to another associated peer? I am not sure of about it.

[RRR] I think the answer is none from the protocol point of view. However, if clients wants to make something as its primary, secondary, etc., it should be left for implementations. It is a different area how a client will these choices.

> (2)Should the client learn more peers information that can be the 
> client'sassociated peers through its now associated peer? And when 
> one of its
> associated peers fails, it joins another to keep enough associated 
> peers for
> choice? I think probably this is what we needed.

[RRR] Yes, definitely. I guess that it is the beauty of the P2P protocol to make as reliable as one can make.
> 
> (3)Should there be a notification mechanism between a client and its
> associated peer? So the client can timely know the status of the 
> associatedpeer, and avoid choosing the congested or busy peer to 
> serve him? I think we
> do need it.

[RRR] I think that the performance criteria for choosing a peer should be a general one as it is the usual case in any communications networks. For example, in the IP network, the routers also have some general criteria how to choose the netxt hop router out of many neighboring routers. In the same token, the P2P protocol should also follow the similar mechanisms that are obvious.
> 
> Best Regards,
> Song Yongchao
> Email: melodysong@huawei.com
> 
> 
> 
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