I’d suggest that the IGP is still not a dump truck. Putting labels on the side 
of it doesn’t make the situation better.

I’m opposed to this work.

Tony


> On Nov 10, 2022, at 3:07 AM, Aijun Wang <[email protected]> wrote:
> 
> Agree.
> 
> It is simple to put different application information onto different planes, 
> but it brings the complex for operator to manage such planes, and the inter 
> communication among different planes.
> 
> Lacks of deployments for Geninfo in IS-IS can also predict the future fate of 
> such approaches in some sense.
> 
> 
> Aijun Wang
> China Telecom
> 
>> On Nov 10, 2022, at 10:48, Robert Raszuk <[email protected]> wrote:
>> 
>> 
>> Thx Acee ... 
>> 
>> Since you mentioned "sparse" and since you highlighted that OSPF is better 
>> then ISIS for this as it runs over IP I took a risk if not using flooding is 
>> an option. 
>> 
>> Well ... apparently not. 
>> 
>> Of course you could build lots of parallel GT planes and still flood in each 
>> across interested parties for a given type of info present in such a plane, 
>> but this comes with much more overhead then pub-sub. 
>> 
>> Cheers,
>> R.
>> 
>> 
>> On Thu, Nov 10, 2022 at 11:34 AM Acee Lindem (acee) <[email protected] 
>> <mailto:[email protected]>> wrote:
>> Hi Robert,
>> 
>>  
>> 
>> From: Robert Raszuk <[email protected] <mailto:[email protected]>>
>> Date: Wednesday, November 9, 2022 at 10:37 AM
>> To: Acee Lindem <[email protected] <mailto:[email protected]>>, lsr <[email protected] 
>> <mailto:[email protected]>>
>> Subject: OSPF-GT
>> 
>>  
>> 
>> Hi Acee,
>> 
>>  
>> 
>> The point of sparse GT makes it much more attractive. 
>> 
>>  
>> 
>> With that I have two questions/suggestions to make it even more useful.
>> 
>>  
>> 
>> #1 Would you consider adding reflection function to spares mode GT ?
>> 
>>  
>> 
>> Within a flooding scope (e.g., area) , reflection is inherent in the 
>> flooding algorithm. One thing that applications will need to specify is 
>> whether or not information is re-originated outside the flooding scope 
>> (e.g., does the ABR re-originate application LSAs into other areas).
>> 
>>  
>> 
>>  
>> 
>> #2 If you do #1 would you considet pub-sub model ?
>> 
>>  
>> 
>> I wouldn’t change basic OSPF flooding. So, one could support pub-sub but 
>> everyone in the OSPF application routing domain would receive a superset of 
>> subscribed information (or the application would have to do something 
>> unnatural from an OSPF standpoint to limit the neighbors receiving the 
>> information, e.g., dynamically assign areas for unique subscriptions). I 
>> think other protocols are better suited to pub-sub.
>> 
>>  
>> 
>> Thanks,
>> Acee
>> 
>>  
>> 
>> Then this could be used for lot's of current use cases ... some of them even 
>> discussed today :)
>> 
>>  
>> 
>> Thx
>> 
>> R 
>> 
>> _______________________________________________
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>> https://www.ietf.org/mailman/listinfo/lsr
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