Hi Luis and all,
Thanks for the effort. The information is really useful and comprehensive. I think it lays a very good foundation to discuss and proceed with potential ALTO extensions. With the rationale that, in my opinion, sets the expectations for each data source, I am wondering whether it is beneficial to discuss gaps and constraints as well. For example, I used to work on providing ALTO maps using SDN, or more precisely, using Open Daylight. Open Daylight has very good (among the best AFAIK) YANG support and the topology models were already support a few years back. One problem, however, was that using the topology information alone cannot generate high-precision network map or cost map: you still need to know where the hosts are attached and what is the routing. Thus, it has to be combined with other data sources, for example, host tracker in the SDN case or BGP/BGP-LS in provider networks, or be limited to specific networks, for example, those using link state routing protocols. I am not saying that the document should summarize the gaps and/or constraints of all the data sources. Rather, I feel that the topic might be a useful input to the interim meeting and to future ALTO extensions. Best, Kai -----Original Messages---- From:"LUIS MIGUEL CONTRERAS MURILLO" <luismiguel.contrerasmuri...@telefonica.com> Sent Time:2023-04-18 06:23:51 (Tuesday) To: "mohamed.boucad...@orange.com" <mohamed.boucad...@orange.com>, "IETF ALTO" <alto@ietf.org> Cc: "Qin Wu" <bill...@huawei.com> Subject: Re: [alto] Proposed Agenda for Interims #2-5 Hi Med, Qin, WG, In order to provide inputs for: * interim #3: Deployment Catalysts · Proposals to fix the integration complexity and integration with data sources Jordi and I have been working on collecting some references that we consider as potential data sources of relevance for the WG and possible integration with ALTO. We have collected those inputs here: https://docs.google.com/spreadsheets/d/1P4GrhQz_t17jIWg-3b1ycldhBWEEgIAAUZe2vjeO_1U/edit#gid=0 Please, feel free to access and check, all of you should be able to add/drop comments as well (let me know in case you need some permission for that). In the table we cover potential data sources, the rationale for considering them, existing reference work, as well as impacts on current ALTO. We hope this could be a basis for discussion for interim #3, but also to trigger discussions on the mailing list so we as WG can go to the interim with a more clear notion of the data sources and their implications. Thanks Best regards Luis De: alto <alto-boun...@ietf.org> En nombre de mohamed.boucad...@orange.com Enviado el: martes, 4 de abril de 2023 8:58 Para: IETF ALTO <alto@ietf.org> CC: Qin Wu <bill...@huawei.com> Asunto: [alto] Proposed Agenda for Interims #2-5 Hi all, Please find below the proposed agenda for the forthcoming interims * interim #2: WGLC follow-up of OAM/Transport I-Ds * interim #3: Deployment Catalysts Reuse existing network resources to identify ALTO resources (e.g., BGP communities) Proposals to fix the integration complexity and integration with data sources * interim #4: OAM/Transport I-Ds * interim #5: Deployment Catalysts Security/privacy isolation Comments and suggestions are welcome. 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