Intelligence
Latest Articles
Latest intelligence on infrastructure operators, policy decisions, market moves, and digital power shifts.
CASE FILE
The Signature Still Verified. The Identifier Had Changed
A new measurement submitted to the IETF shows how 64 different CBOR encodings can preserve one valid COSE signature while producing 64 different hashes of the transmitted statement. The cryptography did not fail. The storage boundary did: a system that reads and re-encodes before…
AFNOG
AfNOG’s ‘Soon-to-Be-Deployed’ Tutorial Scope Leaves Readiness Undefined
AfNOG’s 2007 call described advanced training on technology soon to be deployed without defining readiness.
Leaders
Razvan C. Oprea and the Discipline of Naming Operational Limits
The most revealing moments in Razvan C. Oprea’s public work are not declarations of success. They are the moments when a measurement fails to show what it was expected to show, when a research project draws a line around what its data can establish, or when a technical strategy…
History
The Handle Was the Same. The Credential Could Be Different: RFC 1509
Two programs present the same pointer-sized value to a security service. One reaches Alice’s credential. The other may reach Bob’s—or nothing at all. No bit in the value has changed. The caller has. RFC 1509 made this possible on purpose, because its handle was never the…
CASE FILE
The SID Field Was Present. The SID Was Still Missing: RFC 9831
A controller sent a Segment Type I with its SID-present flag set. The receiving headend could count all 16 octets of the field. Every octet was zero. That was not malformed silence: RFC 9831 permits the controller to describe the behavior it wants while leaving the executable SID…
IETF
The Model Behind the Label Stack: RFC 9902 and the Operational Contract for IS-IS Segment Routing
One enable leaf can start advertising IS-IS Segment Routing extensions, but safe activation depends on the protocol-independent SR label resources already configured beneath it. RFC 9902 makes that seam visible: the switch belongs to IS-IS, while the resources it invokes belong…
North America Regional ISP Trends
Tucows’ US$3m Ting Exit Is a Control Reset, Not a US$150m Discount
Tucows’ July agreement around Ting Fiber looks tempting to compress into one dramatic number. That would erase the useful part of the filing. Tucows purchased and retired the outstanding preferred units for US$3m, made a US$5m loan, accepted further conditional financial or…
History
The Bits TCP Kept for the Future
Six quiet positions in TCP's 1981 header carried no immediate function. Their importance lay in the discipline around that emptiness: send them as zero, leave them available, and let a later standard define meaning without moving the boundary of the base header. Two decades…
IETF
Reveal Less, Prove Enough: RFC 9901 and the Control Surface of Selective Disclosure
One issuer-signed credential can disclose an address to one verifier and a birthdate to another because its signed JSON carries salted digests while the holder presents only selected cleartext Disclosures. That mechanism is defined by RFC 9901, an IETF Standards Track…
AFNOG
AfNOG’s Non-Commercial Tutorial Principle Leaves Its Meaning Undefined
AfNOG’s 2007 call said tutorials should be non-commercial but did not define that boundary.
History
The Bit That Made TCP’s Acknowledgment Number Mean Something
Every TCP segment reserves 32 bits for an acknowledgment number, but the number is not automatically evidence. One control bit decides whether those bits describe the next sequence number the sender expects—or are simply not significant at all.
AFNOG
AfNOG’s Two-Day Tutorial Preference Leaves One-Day Consideration Undefined
AfNOG’s 2007 call preferred two full days for tutorials and said one-day requests might be considered.
Leaders
Patrick Aisenberg and the Operating Discipline Behind the Cloud Transition
Calling a hosting business a cloud provider is easy. Rebuilding the operating model so that customers can see, trust and govern what happens behind the label is much harder. Patrick Aisenberg’s public record at Linkbynet is useful because it captures that distinction…
History
The Number That Told TCP Where Data Began: Data Offset
TCP's header can grow when options are present, so the first application byte cannot live at one fixed position. A four-bit field solves the ambiguity: Data Offset counts the complete header in 32-bit words. Options may end early and padding may remain, but the encoded…
AFNOG
AfNOG’s Parallel Invitation for Suggestions Makes Next-Step Discretion Visible
AfNOG’s 2007 call listed a detailed proposal package, then welcomed suggestions and expressions of interest even without all the requested information.
History
The Header That Was Never Sent: Why TCP Checksums IP Addresses
TCP validates more than the bytes in its own segment. Before calculating or checking the mandatory checksum, each endpoint conceptually places selected IP fields in front of the TCP header: the source and destination addresses, protocol identity and TCP length. This pseudo-header…
Leaders
Jason Speers and the Hidden Handoffs Inside a Digital-First ISP
Babbl presents home internet as something that should be easier to buy and easier to manage: no contract, self-installation and support that does not begin with a call-centre queue. Founder Jason Speers’ public record shows why that simplicity is an operating design rather than…
AFNOG
AfNOG’s Contradictory 2007 Deadline Turns Calendar Accuracy Into a Governance Control
AfNOG’s archived 2007 call published a proposal deadline after the event while placing notification and programme publication months before that deadline.
History
The Two Flags That Took Up Space: Why TCP Counts SYN and FIN
TCP numbers bytes, yet two control events also advance its sequence space. SYN stands before the first data octet and FIN stands after the last, giving connection opening and closing the same acknowledgment and retransmission protection as the stream without turning either flag…
Story
RIPE NCC Counted 1,799 Registry Checks. Its Public Target Has No Cohort Ledger
Seven RIPE NCC member updates report 1,799 Assisted Registry Checks completed from January through July 2026. That is nearly three-quarters of the annual 2,400-check commitment. It is a clear production count. It is not yet a coverage account: the public series does not say how…