Greetings,
Internet2 and CAIDA are developing a tool to visualize the AS-level topology of the global R&E ecosystem. The tool currently uses pre-policy routing data from Internet2, and we hope to expand it to incorporate pre-policy data from additional R&E networks.
We would like to explore how this AS-level topology work might connect with the physical topology mapping being developed by the working group.
Brenna Meade and I will be presenting these tools at TNC26. We are also hosting the BoF “Coordinating BGP Policy and Tooling Across the Global R&E Infrastructure” on Thursday from 9:00–10:30 a.m.
For working group members attending TNC26, we would welcome the opportunity to discuss how these two efforts might complement one another. We would also like to arrange a time to demonstrate the tool to the working group and get your input.
Here are a few links that demonstrate how the tool depicts AS topology for different networks:
SURFnet: https://rootbeer.internet2.edu/re-topology-report/#asn=1103&also=112%2C2...
NORDUnet https://rootbeer.internet2.edu/re-topology-report/#asn=2603&also=224%2C2...
University of Hawaii: https://rootbeer.internet2.edu/re-topology-report/#asn=6360&also=3477%2C...
KISTI https://rootbeer.internet2.edu/re-topology-report/#asn=17579&also=1237%2...
Looking forward to the discussion,
steve
Steven Wallace Director - Routing Integrity Internet2 ssw@internet2.edu
Steven Wallace Director - Routing Integrity Internet2 ssw@internet2.edu
Hello Steve,
Thank you for your message and for bringing this perspective to the discussion. We find the approach very interesting and promising.
From our side, we see a strong opportunity to develop different proof of concept GREN Map by integrating complementary layers, which could enrich the overall representation of the ecosystem:
* L1 (Physical): Aligned with the original GNA-G Map concept, representing the infrastructure. * L2/L3 (Logical / Service Layer): A more flexible representation of services and capabilities operating over the physical layer, potentially leveraging data aggregated from the RENs themselves (topology maps and shared data). * L3 (Routing / Topology Layer): Derived from routing information (e.g., BGP/AS-level views), where we see strong synergy with this Internet2 and CAIDA initiative.
We believe that combining these perspectives could provide a richer, multi-dimensional view of research and education networks.
As a next step, we would like to invite you to attend our demo at TNC26 on Thursday at 2:00 PM. Our session is titled "Building Smarter Networks". During the presentation, we will showcase a new visualization proposal that can apply these concepts and facilitate the mapping of these layers. It will be a great opportunity to discuss this in more detail in person.
We can then organize a follow-up session after TNC26 where you could present your work in depth, and we can jointly explore concrete collaboration opportunities, including the potential for a PoC.
Additionally, we would like to invite you to a GREN Map meeting on June 3rd to discuss a broader topic: how should we consistently represent the different types of networks and initiatives in our ecosystem?
Looking forward to continuing this conversation.
Best regards,
--- Gustavo Araújo |Coordenador de P&D | R&D Coordinator Gerência de P&D em Ciberinfraestrutura (GCI) | Cyberinfrastructure R&D Management Tel.: +55 61 9 8379-7918 | Teams: gustavo.araujo@rnp.brmailto:gustavo.araujo@rnp.br www.rnp.brhttp://www.rnp.br
[cid:34aec5e0-faa5-4888-b4db-e3b153da2b78]
________________________________ De: Steven Wallace ssw@internet2.edu Enviado: domingo, 17 de maio de 2026 21:19 Para: gren-mapping-wg@lists.nordu.net gren-mapping-wg@lists.nordu.net Cc: k claffy kc@caida.org; Brenna Meade bmeade@internet2.edu Assunto: [GREN-Mapping-WG] seeking a potential connection between the mapping effort and RE Topology Report
[Some people who received this message don't often get email from ssw@internet2.edu. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ]
Greetings,
Internet2 and CAIDA are developing a tool to visualize the AS-level topology of the global R&E ecosystem. The tool currently uses pre-policy routing data from Internet2, and we hope to expand it to incorporate pre-policy data from additional R&E networks.
We would like to explore how this AS-level topology work might connect with the physical topology mapping being developed by the working group.
Brenna Meade and I will be presenting these tools at TNC26. We are also hosting the BoF “Coordinating BGP Policy and Tooling Across the Global R&E Infrastructure” on Thursday from 9:00–10:30 a.m.
For working group members attending TNC26, we would welcome the opportunity to discuss how these two efforts might complement one another. We would also like to arrange a time to demonstrate the tool to the working group and get your input.
Here are a few links that demonstrate how the tool depicts AS topology for different networks:
SURFnet: https://rootbeer.internet2.edu/re-topology-report/#asn=1103&also=112%2C2...
NORDUnet https://rootbeer.internet2.edu/re-topology-report/#asn=2603&also=224%2C2...
University of Hawaii: https://rootbeer.internet2.edu/re-topology-report/#asn=6360&also=3477%2C...
KISTI https://rootbeer.internet2.edu/re-topology-report/#asn=17579&also=1237%2...
Looking forward to the discussion,
steve
Steven Wallace Director - Routing Integrity Internet2 ssw@internet2.edu
Steven Wallace Director - Routing Integrity Internet2 ssw@internet2.edu _______________________________________________ GREN Mapping WG mailing list -- gren-mapping-wg@lists.nordu.net To unsubscribe send an email to gren-mapping-wg-leave@lists.nordu.net
Hi Gustavo,
This all sounds good. I look forward to seeing you at TNC26.
Can you share the logistics for the June 3rd meeting?
thanks,
steve
On 18 May 2026, at 10:08, Gustavo Hermínio de Araújo wrote:
Hello Steve,
Thank you for your message and for bringing this perspective to the discussion. We find the approach very interesting and promising.
From our side, we see a strong opportunity to develop different proof of concept GREN Map by integrating complementary layers, which could enrich the overall representation of the ecosystem:
L1 (Physical): Aligned with the original GNA-G Map concept, representing the infrastructure.
L2/L3 (Logical / Service Layer): A more flexible representation of services and capabilities operating over the physical layer, potentially leveraging data aggregated from the RENs themselves (topology maps and shared data).
L3 (Routing / Topology Layer): Derived from routing information (e.g., BGP/AS-level views), where we see strong synergy with this Internet2 and CAIDA initiative.
We believe that combining these perspectives could provide a richer, multi-dimensional view of research and education networks.
As a next step, we would like to invite you to attend our demo at TNC26 on Thursday at 2:00 PM. Our session is titled "Building Smarter Networks". During the presentation, we will showcase a new visualization proposal that can apply these concepts and facilitate the mapping of these layers. It will be a great opportunity to discuss this in more detail in person.
We can then organize a follow-up session after TNC26 where you could present your work in depth, and we can jointly explore concrete collaboration opportunities, including the potential for a PoC.
Additionally, we would like to invite you to a GREN Map meeting on June 3rd to discuss a broader topic: how should we consistently represent the different types of networks and initiatives in our ecosystem?
Looking forward to continuing this conversation.
Best regards,
Gustavo Araújo |Coordenador de P&D | R&D Coordinator Gerência de P&D em Ciberinfraestrutura (GCI) | Cyberinfrastructure R&D Management Tel.: +55 61 9 8379-7918 | Teams: gustavo.araujo@rnp.brmailto:gustavo.araujo@rnp.br www.rnp.brhttp://www.rnp.br
[cid:34aec5e0-faa5-4888-b4db-e3b153da2b78]
De: Steven Wallace ssw@internet2.edu Enviado: domingo, 17 de maio de 2026 21:19 Para: gren-mapping-wg@lists.nordu.net gren-mapping-wg@lists.nordu.net Cc: k claffy kc@caida.org; Brenna Meade bmeade@internet2.edu Assunto: [GREN-Mapping-WG] seeking a potential connection between the mapping effort and RE Topology Report
[Some people who received this message don't often get email from ssw@internet2.edu. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ]
Greetings,
Internet2 and CAIDA are developing a tool to visualize the AS-level topology of the global R&E ecosystem. The tool currently uses pre-policy routing data from Internet2, and we hope to expand it to incorporate pre-policy data from additional R&E networks.
We would like to explore how this AS-level topology work might connect with the physical topology mapping being developed by the working group.
Brenna Meade and I will be presenting these tools at TNC26. We are also hosting the BoF “Coordinating BGP Policy and Tooling Across the Global R&E Infrastructure” on Thursday from 9:00–10:30 a.m.
For working group members attending TNC26, we would welcome the opportunity to discuss how these two efforts might complement one another. We would also like to arrange a time to demonstrate the tool to the working group and get your input.
Here are a few links that demonstrate how the tool depicts AS topology for different networks:
SURFnet: https://rootbeer.internet2.edu/re-topology-report/#asn=1103&also=112%2C2...
NORDUnet https://rootbeer.internet2.edu/re-topology-report/#asn=2603&also=224%2C2...
University of Hawaii: https://rootbeer.internet2.edu/re-topology-report/#asn=6360&also=3477%2C...
KISTI https://rootbeer.internet2.edu/re-topology-report/#asn=17579&also=1237%2...
Looking forward to the discussion,
steve
Steven Wallace Director - Routing Integrity Internet2 ssw@internet2.edu
Steven Wallace Director - Routing Integrity Internet2 ssw@internet2.edu _______________________________________________ GREN Mapping WG mailing list -- gren-mapping-wg@lists.nordu.net To unsubscribe send an email to gren-mapping-wg-leave@lists.nordu.net
Steven Wallace Director - Routing Integrity Internet2 ssw@internet2.edu
Hi Steven,
I send you an invite.
Regards,
--- Gustavo Araújo |Coordenador de P&D | R&D Coordinator Gerência de P&D em Ciberinfraestrutura (GCI) | Cyberinfrastructure R&D Management Tel.: +55 61 9 8379-7918 | Teams: gustavo.araujo@rnp.brmailto:gustavo.araujo@rnp.br www.rnp.brhttp://www.rnp.br
[cid:66f1d545-81cb-4b98-9bb3-f70a79cecfa9]
________________________________ De: Steven Wallace ssw@internet2.edu Enviado: segunda-feira, 18 de maio de 2026 13:44 Para: Gustavo Hermínio de Araújo gustavo.araujo@rnp.br Cc: gren-mapping-wg@lists.nordu.net gren-mapping-wg@lists.nordu.net; k claffy kc@caida.org; Brenna Meade bmeade@internet2.edu Assunto: Re: [GREN-Mapping-WG] seeking a potential connection between the mapping effort and RE Topology Report
Hi Gustavo,
This all sounds good. I look forward to seeing you at TNC26.
Can you share the logistics for the June 3rd meeting?
thanks,
steve
On 18 May 2026, at 10:08, Gustavo Hermínio de Araújo wrote:
Hello Steve,
Thank you for your message and for bringing this perspective to the discussion. We find the approach very interesting and promising.
From our side, we see a strong opportunity to develop different proof of concept GREN Map by integrating complementary layers, which could enrich the overall representation of the ecosystem:
* L1 (Physical): Aligned with the original GNA-G Map concept, representing the infrastructure. * L2/L3 (Logical / Service Layer): A more flexible representation of services and capabilities operating over the physical layer, potentially leveraging data aggregated from the RENs themselves (topology maps and shared data). * L3 (Routing / Topology Layer): Derived from routing information (e.g., BGP/AS-level views), where we see strong synergy with this Internet2 and CAIDA initiative.
We believe that combining these perspectives could provide a richer, multi-dimensional view of research and education networks.
As a next step, we would like to invite you to attend our demo at TNC26 on Thursday at 2:00 PM. Our session is titled "Building Smarter Networks". During the presentation, we will showcase a new visualization proposal that can apply these concepts and facilitate the mapping of these layers. It will be a great opportunity to discuss this in more detail in person.
We can then organize a follow-up session after TNC26 where you could present your work in depth, and we can jointly explore concrete collaboration opportunities, including the potential for a PoC.
Additionally, we would like to invite you to a GREN Map meeting on June 3rd to discuss a broader topic: how should we consistently represent the different types of networks and initiatives in our ecosystem?
Looking forward to continuing this conversation.
Best regards,
--- Gustavo Araújo |Coordenador de P&D | R&D Coordinator Gerência de P&D em Ciberinfraestrutura (GCI) | Cyberinfrastructure R&D Management Tel.: +55 61 9 8379-7918 | Teams: gustavo.araujo@rnp.brmailto:gustavo.araujo@rnp.br www.rnp.brhttp://www.rnp.br
[cid:34aec5e0-faa5-4888-b4db-e3b153da2b78]
________________________________ De: Steven Wallace ssw@internet2.edu Enviado: domingo, 17 de maio de 2026 21:19 Para: gren-mapping-wg@lists.nordu.net gren-mapping-wg@lists.nordu.net Cc: k claffy kc@caida.org; Brenna Meade bmeade@internet2.edu Assunto: [GREN-Mapping-WG] seeking a potential connection between the mapping effort and RE Topology Report
[Some people who received this message don't often get email from ssw@internet2.edu. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ]
Greetings,
Internet2 and CAIDA are developing a tool to visualize the AS-level topology of the global R&E ecosystem. The tool currently uses pre-policy routing data from Internet2, and we hope to expand it to incorporate pre-policy data from additional R&E networks.
We would like to explore how this AS-level topology work might connect with the physical topology mapping being developed by the working group.
Brenna Meade and I will be presenting these tools at TNC26. We are also hosting the BoF “Coordinating BGP Policy and Tooling Across the Global R&E Infrastructure” on Thursday from 9:00–10:30 a.m.
For working group members attending TNC26, we would welcome the opportunity to discuss how these two efforts might complement one another. We would also like to arrange a time to demonstrate the tool to the working group and get your input.
Here are a few links that demonstrate how the tool depicts AS topology for different networks:
SURFnet: https://rootbeer.internet2.edu/re-topology-report/#asn=1103&also=112%2C2...
NORDUnet https://rootbeer.internet2.edu/re-topology-report/#asn=2603&also=224%2C2...
University of Hawaii: https://rootbeer.internet2.edu/re-topology-report/#asn=6360&also=3477%2C...
KISTI https://rootbeer.internet2.edu/re-topology-report/#asn=17579&also=1237%2...
Looking forward to the discussion,
steve
Steven Wallace Director - Routing Integrity Internet2 ssw@internet2.edu
Steven Wallace Director - Routing Integrity Internet2 ssw@internet2.edu _______________________________________________ GREN Mapping WG mailing list -- gren-mapping-wg@lists.nordu.net To unsubscribe send an email to gren-mapping-wg-leave@lists.nordu.net
Steven Wallace Director - Routing Integrity Internet2 ssw@internet2.edu
gren-mapping-wg@lists.nordu.net
-
Gustavo Hermínio de Araújo -
Steven Wallace