April 2026 - NANOG - lists.nanog.org

What’s Changed at NANOG and Why It Matters + MORE
by Nanog News 10 Apr '26

10 Apr '26

*** What’s Changed at NANOG and Why It Matters* ------------------------------------------------------------ *Let Us (Re)Introduce Ourselves to Your Network + Peers* *NANOG's technical focus remains as strong as ever.* What has changed is the way the community supports participation, technical exchange, and collaboration between conferences. See what else has changed or send this to a Newcomer. *READ MORE *( https://nanog.org/stories/articles/whats-changed-at-nanog-and-why-it-matter… ) *** NANOG Committee Spotlight: Election Committee* ------------------------------------------------------------ *Get Involved in NANOG — Join a NANOG Committee* The purpose of the Elections Committee is to assist the Board of Directors by conducting elections for NANOG Board positions, proposed amendments to governing documents, and to conduct any other election-related matters as directed by the NANOG Board. *MORE INFO* ( https://nanog.org/about/who-we-are/committees/elections-committee/) *** Spotlight on Compudopt: Earth Month + E-Waste Recycling* ------------------------------------------------------------ *Network upgrades generate retired hardware every year.* Through responsible IT asset disposition, those devices can be securely wiped, refurbished, and redeployed to families in need. Partner with Compudopt today for compliant device recovery and turn e-waste into digital opportunity, leading to a cleaner tomorrow! *MORE INFO *(http://www.compudopt.org/itad ) *** Don't Get Left in the Digital Dust!* ------------------------------------------------------------ *Take Advantage of Standard Rates + Register Now* Stay in the know + join your tribe. NANOG 97 will take place in Bellevue, WA, Jun. 1-3. *REGISTER NOW* (https://nanog.org/events/nanog-97/register/) *** Stay Connected* ------------------------------------------------------------ http://www.facebook.com http://www.instagram.com/nanog_org/ http://www.linkedin.com/company/nanog/ https://www.twitter.com/nanog/ http://nanog.org

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Contact needed: AS15169 Peering/GGC Escalation (Bogota Edge Exhaustion)
by cesarmeza＠superredes.co 10 Apr '26

10 Apr '26

Hello NANOG community, I apologize for reaching out here, but we have exhausted all official support channels for over two months and are dealing with a severe capacity crisis. We are looking for a direct contact or Duty Manager at Google Peering / GGC Strategy for LATAM. Our ASN: AS270075 (Super Redes SAS - Colombia) The Issue: Google's rack capacity in the Bogota metro area is completely exhausted. This was confirmed to us via a Google NOC internal bug leak (b/478722514). Because of this, our 100G PNIs have been artificially hard-capped at 10G. We had to administratively shut down the peering links to stop massive flapping and are now bleeding >15 Gbps of Google-destined traffic to paid transit. The Ignored Mitigation: We meet all volume criteria (~30 Gbps) and requested a local GGC node to mitigate this 40+ days ago (Ticket #2175456459). The request remains completely ignored with zero human response from the Edge team. The NOC refuses to provide an ETR for the physical capacity issue. If anyone from AS15169 is reading this, or if anyone can back-channel this to the right person, we desperately need a human to look at ticket #2175456459 so we can deploy this cache and restore service stability. Thank you in advance, [Cesar Meza] [Director NOC] Super Redes SAS (AS270075) Cesar Alberto Meza Seijas Director NOC Super Redes SAS T: +57 606 3495750 | E: cesarmeza(a)superredes.co (mailto:{cesarmeza@superredes.co}) www.superredes.com.co (https://www.superredes.com.co) Carrera 27 #81-57 Casa 16, Corales Pereira, Risaralda, Colombia El contenido de este correo electrónico es confidencial y está destinado únicamente al destinatario especificado en el mensaje. Está estrictamente prohibido compartir cualquier parte de este mensaje con terceros, sin el consentimiento por escrito del remitente. Si recibió este mensaje por error, responda a este mensaje y continúe con su eliminación, para que podamos asegurarnos de que tal error no ocurra en el futuro.

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Kentucky Data Link // CONTACTS?
by Evan M. Gillman 09 Apr '26

09 Apr '26

Hi All, Is there anyone on this list from Windstream that has some historical knowledge regarding the Kentucky Data Link network and potential fiber in / around Cave City, KY? Thanks again. Evan M. Gillman | transitbroker.com | P. 212.420.1222 | M. 917.664.0707

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Site Reliability Engineering - Focus of NANOG 97 + MORE
by Nanog News 08 Apr '26

08 Apr '26

*** Site Reliability Engineering - Focus of NANOG 97* ------------------------------------------------------------ *Join Us in Bellevue (Jun.1-3)* NANOG 97’s content will showcase how network operators are using SRE tools and methodologies in the real world to reduce network and application downtime and increase reliability. *SRE topics we plan to include in NANOG 97’s programming include:* * Monitoring and observability * Incident management * Capacity planning * Change management *READ MORE* ( https://nanog.org/stories/articles/site-reliability-engineering-focus-of-na… ) *REGISTER FOR N97* (https://nanog.org/events/nanog-97/) *** NANOG Committee Spotlight: Mentorship Committee* ------------------------------------------------------------ *Get Involved in NANOG — Join a NANOG Committee* The Mentorship Committee strengthens the NANOG community by delivering programs that support early‑career engagement, improve first‑time attendee experiences, and foster continuous professional mentorship and development. *MORE INFO* (https://nanog.org/outreach/nanog-mentorship-program/) *** Reminder: Submit Your Content 🎯* ------------------------------------------------------------ *Transform Your Best Idea into a NANOG Talk* If you are interested in sharing your experiences, ideas, or the latest technologies with the greater NANOG community, submit a presentation proposal including draft slides no later than Monday, April, 27. *CALL FOR CONTENT *(https://nanog.org/program/call-content/) *** Video of the Week - The Network Automation Map: Navigate Your Journey with the NAF Automation Framework* ------------------------------------------------------------ *With OpsMill, Damien Garros + Nokia, Wim Henderickx* At 1k views since our last meeting, this video is catching some eyeballs. *WATCH NOW* ( https://www.youtube.com/watch?v=MCeDVWOrnIs&list=PLO8DR5ZGla8i1P6NjMTMxvym0… ) *** Stay Connected* ------------------------------------------------------------ http://www.facebook.com http://www.instagram.com/nanog_org/ http://www.linkedin.com/company/nanog/ https://www.twitter.com/nanog/ http://nanog.org

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Spoofer Report for NANOG for Mar 2026
by CAIDA Spoofer Project 08 Apr '26

08 Apr '26

In response to feedback from operational security communities, CAIDA's source address validation measurement project (https://spoofer.caida.org) is automatically generating monthly reports of ASes originating prefixes in BGP for systems from which we received packets with a spoofed source address. We are publishing these reports to network and security operations lists in order to ensure this information reaches operational contacts in these ASes. This report summarises tests conducted within usa, can. Inferred improvements during Mar 2026: ASN Name Fixed-By 209179 WI-FI-DOM 2026-03-04 54256 2026-03-11 27364 ACS-INTERNET 2026-03-12 152179 2026-03-15 138915 KAOPU-HK 2026-03-16 36352 AS-COLOCROSSING 2026-03-19 Further information for the inferred remediation is available at: https://spoofer.caida.org/remedy.php Source Address Validation issues inferred during Mar 2026: ASN Name First-Spoofed Last-Spoofed 3356 LEVEL3 2016-03-06 2026-03-30 12083 WOW-INTERNET 2016-11-09 2026-03-31 14051 SUREWEST 2017-10-26 2026-03-28 22883 CONDENAST 2019-05-29 2026-03-25 21804 ACCESS-SK 2019-06-09 2026-03-31 52643 N&G Tecnologia LTDA 2019-09-24 2026-03-20 393397 LREC-LRT 2020-08-02 2026-03-23 36352 AS-COLOCROSSING 2020-10-08 2026-03-20 55016 IMPER-AS-1 2021-05-18 2026-03-29 22773 ASN-CXA-ALL-CCI-22773-RDC 2021-10-24 2026-03-25 12183 TALKIE-COMMUNICATIONS 2022-12-10 2026-03-28 400282 2023-04-27 2026-03-30 393577 SCCNET 2023-05-03 2026-03-27 394684 AS-GOLD 2024-01-17 2026-03-28 27425 ASN-IDK-27425 2024-02-21 2026-03-12 53755 IOFLOOD 2024-02-23 2026-03-28 393530 TLU 2024-05-22 2026-03-25 19935 CRRS 2024-05-29 2026-03-19 265561 LANTOINTERNET SA DE CV 2024-09-06 2026-03-26 54334 ROYA 2025-03-13 2026-03-31 273843 2025-04-02 2026-03-31 204969 AS_CIRTEL 2025-10-22 2026-03-20 32425 SKB3-ARIN-BGP 2025-12-12 2026-03-09 212238 CDNEXT 2026-02-18 2026-03-25 20162 UTDALLAS 2026-03-03 2026-03-31 35958 CCN42 2026-03-27 2026-03-27 Further information for these tests where we received spoofed packets is available at: https://spoofer.caida.org/recent_tests.php?country_include=usa,can&no_block… Please send any feedback or suggestions to spoofer-info(a)caida.org

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Cloudflare DNS contact?
by Betsy Schwartz 08 Apr '26

08 Apr '26

We're getting reports of users trying to log in or request 2FA emails from Cloudflare sites (ex: California DMV) but seeing errors that our well.com domain isn't recognized as valid. Well.com has been around since 1993 and our primary DNS hasn't changed since perhaps 2012. . Excerpts appended for reference. I strongly suspect these errors are related to a Cloudflare security check for valid email domains. Hoping someone here can validate or disprove this. If it's a Cloudflare issue, any contacts here? When I poke at an open cloudflare DNS server and look up the A for well.com I get a disturbing error: : server can't find well.com.well.sf.ca.us: well.sf.ca.us is an antique (but valid) A record in the sf.ca.us zone and has no business appearing here. Did something drop a period or CRLF on a list somewhere? When I query AWS and Google DNS servers, our DNS looks correct and unchanged Thank you very much for any pointers! Betsy -- Correct info: > set type=any > well.com Server: 8.8.8.8 Address: 8.8.8.8#53 Non-authoritative answer: Name: well.com Address: 23.22.72.90 well.com nameserver = ns-1783.awsdns-30.co.uk. well.com nameserver = ns-1103.awsdns-09.org. well.com nameserver = ns-805.awsdns-36.net. well.com nameserver = ns-459.awsdns-57.com. well.com origin = ns-1103.awsdns-09.org mail addr = awsdns-hostmaster.amazon.com <snip> well.com mail exchanger = 15 xmx.well.com. <snip> -- whois well.com [Querying whois.verisign-grs.com] Domain Name: WELL.COM Registry Domain ID: 4562093_DOMAIN_COM-VRSN Registrar WHOIS Server: whois.enom.com Registrar URL: http://www.enomdomains.com Updated Date: 2020-01-24T18:46:10Z Creation Date: 1993-01-25T05:00:00Z Registry Expiry Date: 2029-01-26T05:00:00Z <snip> Name Server: NS-1103.AWSDNS-09.ORG Name Server: NS-1783.AWSDNS-30.CO.UK Name Server: NS-459.AWSDNS-57.COM Name Server: NS-805.AWSDNS-36.NET <snip>

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BGP Stuck Routes Operational Experience Survey
by ixygkou3＠gatech.edu 07 Apr '26

07 Apr '26

Dear NANOG community members, We are researchers from Georgia Tech investigating the phenomenon of BGP stuck routes (also known as "zombie routes")—prefixes that persist in routing tables despite being withdrawn by their origin AS. While recent research using BGP beacons (including our work presented at IMC 2025 [1]) confirms that zombie routes occur regularly and can persist for long periods, there is a gap in understanding the operational reality of this issue. We observe the data, but we need to hear from operators to understand the real-world impact and their mitigation responses. We invite you to participate in a brief, anonymous survey to help us assess the extent and impact of this phenomenon in operational settings and to identify common practices for mitigating it. Survey Link: https://forms.office.com/r/9BuWqN0n0J Privacy & Data Usage: This survey is anonymous. We are not collecting any PII (Personally Identifiable Information) data. Thank you for your time and for your contributions to this Internet measurement study. [1] I. Xygkou, A. Chariton, X. Dimitropoulos, and A. Dainotti. "A First Look into Long-lived BGP Zombies". IMC '25. https://doi.org/10.1145/3730567.3764469 Best regards, Iliana Xygkou PhD student Georgia Institute of Technology

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Anyone from Edgoo here?
by William Herrin 06 Apr '26

06 Apr '26

My ISP is your customer and you appear to be incorrectly applying strict reverse path filtering on their BGP managed link. If that's accurate, congratulations: you broke the Internet. Or at least the part of it encompassing 199.33.224.0/23. Please contact me so we can figure this out. Regards, Bill Herrin -- For hire. https://bill.herrin.us/resume/

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Operational feedback on policy redundancy
by manwar＠illinois.edu 06 Apr '26

06 Apr '26

Hello, I am a PhD student currently looking at the long-term management of network policies and intents. In studying a large-scale production dataset from a service provider, I found that over 95% of the operational intents were semantically redundant (meaning they were completely shadowed or subsumed by broader, older rules). I am trying to understand if this high level of policy bloat matches the actual experience of operators in the field: Redundancy: Is cleaning up shadowed or redundant rules a regular part of your workflow, or do they just tend to stay in the system for years once they're active? Conflicts: How often do you run into cases where multiple goals (which all seem fine on their own) accidentally create a conflict when they are enforced together over the same traffic? Resolutions: Is there a standard way you "relax" or prioritize these goals when you find they are fighting each other? Thank you for any operational insights you can share. Best regards, Mubashir Anwar University of Illinois Urbana-Champaign

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Fwd: CHI-NOG-13 - Call for Presentations - May 28th, 2026
by Tom Kacprzynski 03 Apr '26

03 Apr '26

CHI-NOG 13 – Chicago Network Operators Group May 28, 2026 | Chicago, IL The Chicago Network Operators Group (CHI-NOG) is a vendor-neutral organization dedicated to fostering a regional community of network professionals. Our mission is to share insights into the latest technology trends, encourage collaboration, and provide valuable networking opportunities. We are excited to announce that CHI-NOG will host its thirteenth annual conference on May 28, 2026, in downtown Chicago. For detailed information, visit the event page: https://chinog.org/chi-nog-13/ ------------------------------ *CALL FOR PRESENTATIONS* The CHI-NOG Program Committee invites proposals for presentations on cutting-edge networking technologies, including (but not limited to) the following topics. *Abstract Submission Deadline: April 6, 2026* Service Provider Networks - Internet Backbone Operations - Broadband and Transport Technologies - Optical Networking - Mobile Networks - Midwest / Chicago Infrastructure Development - Network Traffic Engineering and Network Planning - Advanced BGP/MPLS Technologies - SRv6 and MPLS Segment Routing - Research on Internet Operations and Deployment Enterprise Networking - Enterprise architecture - SD-WAN - OT Networking - Corporate network operations - Low-latency / Financial Networks Datacenter Infrastructure - Datacenter Infrastructure - Datacenter Network Fabrics - High-performance computing networks - AI cluster networking Peering & Interconnection - Interconnection and Peering - Internet Exchange Points (IXPs) - Content Delivery Networks (CDNs) AI Networking - AI Network Infrastructure - AI Ops - Introduction to AI Technologies - Networking for AI workloads Security - Network Security - Zero Trust Networking - Internet Routing Security (RPKI) - DNSSEC Automation - Network Automation and Programmability - Infrastructure as Code - Automation frameworks and tooling Observability - Network Monitoring - Network Observability - Telemetry and analytics - Troubleshooting large-scale networks Career - Career advancement in networking - Leadership and professional development Other - Topics that do not fit into the categories above ------------------------------ PRESENTATION GUIDELINES Session Duration Standard presentations are 30 minutes, including Q&A. Extended sessions (up to 60 minutes) may be considered upon request. Content Focus Presentations should emphasize original technical insights and real-world operational experience. Marketing or commercial product promotion is discouraged. *KEY DATES* Call for Presentations: March 9, 2026 Abstract Submission Deadline: April 6, 2026 Selection Notification: April 15, 2026 Full Presentation Submission: May 15, 2026 Conference Date: May 28, 2026 ------------------------------ *HOW TO SUBMIT* Submit your abstract proposal using the submission form: https://chinog.org/chi-nog-13/abstract-submission/ All accepted speakers will receive complimentary tickets to the conference and an exclusive hoodie. For examples of past presentations, visit: https://www.youtube.com/user/chicagonog/videos The CHI-NOG Program Committee looks forward to receiving your submissions and seeing you at the event. Tom Kacprzynski CHI-NOG Program Committee Chair

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