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NOGS
Routing, peering and resilience problems surface first at network operator groups. We cover NANOG, APRICOT, LACNOG, AfNOG, MENOG and SANOG, and bring you the operational lessons before they become industry practice.
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Latest Coverage
Latest from NOGS
192 articles
NANOG
Richard Steenbergen found a purchasing rule inside the optical port
A pluggable optic looks like a replaceable part. Steenbergen opened its management interface and found a small computer, a diagnostic instrument and, sometimes, a vendor's permission slip for buying the next one.
NANOG
Matt Griswold has six founding networks. The Chicago IX vote was still being written.
The ports have prices and the founders have names. Griswold's NANOG slides promise that connected networks will vote on the exchange's future, then say the voting structure is still being finalized. At an IX, the cost of leaving rises after the first BGP sessions come up.
NANOG
Iliana Xygkou found 15 networks erasing a route-leak warning. Two got the call.
The BGP standard says its Only to Customer marker must survive the trip. Xygkou and Bryton Herdes followed the marker across real peers. At one large network, a configuration changed; at another, the warning still vanished in their October record.
NANOG
Renato Ornelas had room at one PNI. The Cup still imported 165 Gbps.
The local cache was full and one peering site had hit its limit. A second site still had space. Ornelas's World Cup traces show why an empty port is not the same thing as a local route.
NANOG
Adel Iazzag’s hottest AI-fabric port refuses to stay put
Mixture-of-Experts training can send many GPUs toward one destination, then move the crowd to another. Iazzag’s NANOG 98 talk puts the cost of that wandering incast on the network design and the scheduler that places the work.
NANOG
Bryton Herdes put the wrong AS first. Seven Tier-1s let the route in.
A route can keep a respectable origin while lying about the neighbor that delivered it. Herdes sent a deliberate mismatch to Tier-1 peers and found that the first check in the chain was missing at half the doors he tested.
NANOG
Maynard Koch sent one IPv6 probe. A loop answered more than 250,000 times.
Maynard Koch’s routing-loop research turns an obscure configuration mistake into a visible bill: unused IPv6 space, a default route and no NULL route can keep a packet circling until a faulty router multiplies the response.
NANOG
Craig Johnson kept BGP green while two service routes vanished
One deleted prefix-list qualifier left the session alive and the service unreachable in Craig Johnson’s NANOG 98 lab. His case shows why a network change needs both the behavior of real software and a model of the network that actually exists.
NANOG
Dmytro Shypovalov gave Segment Routing a bandwidth meter. The production switch stays off.
Segment Routing removed state from transit routers. At NANOG 98, Dmytro Shypovalov showed where the missing traffic-rate feedback has to go—and why a working demonstration still leaves an operator with a production decision.
NANOG
Shruthi Sepuri asks the green dashboard to prove the answer is right
A service can keep its uptime, latency and error charts spotless while quietly returning the wrong decision. At NANOG 98, Shruthi Sepuri argued that reliability has to follow the workflow all the way to its output.
NANOG
Marian Rychtecký: BGP’s “graceful” restart left 121 seconds without routes
A firewall upgrade was meant to hide a failover. Instead, an Established session carried zero prefixes while traffic kept heading toward a firewall with no routes to send it onward.
APRICOT
APRICOT Opens at $300 for Everyone. The Member Gate Appears on 16 November.
APRICOT 2027 has opened registration with a two-week price truce: a conference pass costs USD 300 whether or not the buyer belongs to APNIC or APNOG. Once that window closes, the same event charges USD 350 to members and USD 500 to everyone else. The clock, more than the…
NANOG
NANOG Changed Four Rules. Only 178 Members Voted.
Four bylaw amendments won between 89.5% and 97.7% of votes cast in NANOG’s 2026 election. The same official record lists 702 eligible voters and 178 ballots: a 25.4% participation rate. Those are two different denominators, and the distinction is the story.
NANOG
5003 Means 400ZR Here. Automation Needs the Meaning, Not the Number.
A NANOG 98 slide exposes a quiet seam in optical automation: a common field can carry a device-specific number. Portable control needs the mode definition and target capability evidence beside it.
NANOG
RPKI Drops the Route. The Owner Gets No Receipt.
At NANOG 98, KAIST’s iROV proposal asks a pointed operational question: when origin validation rejects a route, why should the network that owns the prefix learn nothing about where the route died or what it cost?
LACNOG
LACNIC 46’s two lists put remote at 30%, then 21%
The official portal lists 1,247 registration rows and a separate 946-row Asistentes roster. Remote entries make up 30.4% of the first list and 21.0% of the second.
NANOG
One IP, 3,000 Ports, Two Rollbacks: NANOG 98’s Six-Month Migration
A NANOG 98 case study used BGP FlowSpec to move a hard-coded raw-TCP service in pieces. The result depended on one detail the RFC does not promise: the network’s exact redirect action.
NANOG
BGP Said Established. The Routes Were Gone for 121 Seconds
During a firewall high-availability upgrade, NIX.CZ’s Router B showed BGP sessions as `Established` while its routing table held no prefixes for 121 seconds. An IPv6 peer-context error stalled Graceful Restart across both address families and sent traffic into a black hole.
APRICOT
APRICOT’s deadline says January. The microphone may be booked by then
The conference has a last date for pitches and a much earlier race for the stage. Its own call makes the distinction impossible to miss.
BDNOG
bdNOG22 names 15 fellows, but leaves its applicant pool unseen
The Bangladesh Network Operators Group has published the 2026 fellowship roster and support terms. The public record identifies recipients, but not the size of the applicant pool or whether they attended.
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NOG Profiles by Region
NANOG
North American operator community for interconnection and routing practice.
Open NANOGMENOG
Middle East network operator dialogue with deployment-focused sessions.
Open MENOGAPRICOT
Asia-Pacific operations and policy interface conference ecosystem.
Open APRICOTJANOG
Japan operator community execution and resilience signal stream.
Open JANOGSANOG
South Asian operator collaboration and engineering knowledge exchange.
Open SANOGAfNOG
Africa-focused network operators community and technical training ecosystem.
Open AfNOGLACNOG
Latin American operator coordination and interconnection quality.
Open LACNOG