[Forces-protocol] Re: Instance Select

Hormuzd,

----- Original Message -----
From: "Khosravi, Hormuzd M" <hormuzd.m.khosravi@intel.com>
Subject: RE: Instance Select

Weiming,

I haven't seen any compelling example (real NE) to need this kind of
functionality in the protocol.
[Weiming]I think i'v repeated this necessity several times . Sorry you can not
feel it, but I'm sure if you'v got a test platform to practically do something,
you'l have more strong feel on the desire for this :)
Therefore, I don't think this complexity needs to be added...
[Weiming] I don't agree it adds much complexity.
at most we
need a Broadcast Instance ID definition (Send msgs to all LFBs of a
particular Type).
[Weiming]That's not enough. I'v shown some examples to state this.

But I will be happy to hear what Jamal, others have to
say on this ? I am not religious either way...

regards
Hormuzd

-----Original Message-----
From: Wang,Weiming [mailto:wmwang@mail.hzic.edu.cn]
Sent: Wednesday, October 20, 2004 9:48 PM
To: forces-protocol@ietf.org
Cc: Khosravi, Hormuzd M; hadi@znyx.com; Joel M. Halpern;
ram.gopal@nokia.com; Yang, Lily L; Alan DeKok; zsolt@nc.rr.com; Steven
Blake (petri-meat); Deleganes, Ellen M
Subject: Instance Select

Hi Jamal, Hormuzd, etc,

To summarize the discussions on multiple instances, I try to propose
following
scheme for instance selection, which follows Robert's idea and Jamal's
format,
as:

PL level PDU : = MAINHDR<LFBselect>+
LFBselect := LFBCLASSID InsSelect <OPER>+
InsSelect := InstanceID <RangeMark | Instance ID >+
RangeMark := '0xFFFFFFFF'; the value is the same as Broadcast Instance
address,
no worry of ambiguity here.

The InsSelect is a TLV, whose structure is shown as:

main hdr (eg type = config)
     |
     |
     +-- T = LFBselect
     |        |
     |        +- LFBCLASSID = target LFB class
     |        |
     |        |
     |        +- T = InsSelect
     |        |   |
     |        |   V = InstanceID <RangeMark | Instance ID >+
     |        |
     |        +- T = operation { ADD, DEL, GET, etc}
     ...

Best Regards,
Weiming

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