Subject: Fw: [GSMP] more changes to the base draft

From: "Wang,Weiming" <[email-masked]>
Date: Wed, 26 Nov 2003 16:52:58 +0800

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From: Avri Doria <[email-masked]>
Date: Wed, 26 Nov 2003 20:54:54 +0900

Hi Weiming,

comments inline.

On onsdag, nov 26, 2003, at 17:52 Asia/Seoul, Wang,Weiming wrote:

>
>  Hi Avri,
>
>  I'm writing to seek the possiblity in GSMP base header to add 
> following items:
>
>  1. A proirity flag to indicate the processing priority for the 
> message.

Can you explain how you would think this should be used?

>  2. An optional checksum part in GSMP for error control.

Again, can you explain how you would want to see this used?

>
>  If possible, I also ask to leave some space in the Version field for 
> possible including of other
>  possible protocols like GRMP 
> (http://www.ietf.org/internet-drafts/draft-wang-forces-grmp-01.txt).

  If the two protocols were to be merged it would seem to make the most 
sense to me for there to be one base protocol which supported the MPLS 
and GMPLS mode as well as the router mode.  I would personally be 
uncomfortable with one version of the protocol for switches and one for 
routers.  In many respects I think that the support  one would need for 
adding messages for router support already exists.

If this merge is something that is of interest to the Wg and something 
we can get IESG support for (i think it would require a charter 
amendment) then I think we could certainly work out the details here on 
the list.

I do think your first 2 requests can be discussed within the current  
work without any charter  problems.  For the other, I would like to 
hear from other list members on whether it is something that the WG 
should pursue.

a.

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From: "Wang,Weiming" <[email-masked]>
Date: Thu, 27 Nov 2003 18:03:50 +0800

Hi Avri,

Pls see inline. Thank you for reply.

Weiming

----- Original Message ----- 
From: "Avri Doria" <[email-masked]>
To: <[email-masked]>
Sent: Wednesday, November 26, 2003 7:54 PM
Subject: Re: Fw: [GSMP] more changes to the base draft

> Can you explain how you would think this should be used?

I suppose the timeliness for protocol messages like in ForCES may also be reqired by GSMP, and even, GSMP
may require this a little more, for GSMP needs to manage the connections from GSMP controller. A priority applying 
to some urgent messages like branch connection management may help in some cases.  

> Again, can you explain how you would want to see this used?
Also as being considered in GRMP, GSMP may sometimes be encapsulated on mediums that themselves cannot 
supply error control, like directly on Ethernet and ATM.  I also think GSMP is more probable to be encapsulated 
over such transport layer. Althougt GSMP may deal with the transmission errors in this case via the message field 
consistency, I just think a checksum may deal with this more specifically and easily. The idea to add the checksum is
the same as in UPD, only where a all zero of checksum is used to turn it off. When we set a flag for it, the bits can be saved
when checksum is turned off.

> amendment) then I think we could certainly work out the details here on 

Actually how a multiservice architecture is defined is important toward above
question. I do hope more progress can be made in MSF to help this. 

> hear from other list members on whether it is something that the WG 

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