Skip to main content

Intelligence

Latest Articles

Latest intelligence on infrastructure operators, policy decisions, market moves, and digital power shifts.

A variable TCP header of option blocks ends at a highlighted Data Offset boundary where the application-data region begins.

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…

Sep 6, 2026
A detailed checklist and a simpler suggestion card meet at an unresolved next-step junction.

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.

Sep 6, 2026
A TCP segment between two endpoints with a translucent pseudo-header feeding address, protocol and length context into its checksum.

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…

Sep 6, 2026
Editorial portrait of Jason Speers in a modern internet operations environment

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…

Sep 6, 2026
Learning-history paths pass through a transparent decision junction toward limited workshop seats and support.

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.

Sep 6, 2026
Two control positions bracket a continuous TCP data sequence, placing SYN before the bytes and FIN after them.

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…

Sep 5, 2026
Seven monthly rails feed a counter while repeat loops lead to an unfinished cohort ledger.

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…

Sep 5, 2026
Learning-history paths pass through a transparent decision junction toward limited workshop seats and support.

AFNOG

AfNOG’s Speaker-Cost Rule Separates Programme Access From Travel Support

AfNOG’s 2007 call waived registration for presenters and instructors but expected them to fund their own travel because organisational funds were limited.

Sep 5, 2026
A transparent security gateway passes a procession of matching data capsules while holding aside one harmless machine-shaped client before a luminous registry core.

Story

APNIC’s RDAP Blocked About 10% of Requests for Not Looking Like Browsers

For 18 hours in January, a machine-readable registry protocol lost requests because the software introducing itself at the edge did not resemble a common browser. APNIC’s own incident notice supplies the number and the cause. The harder question is what evidence should stand…

Sep 5, 2026
A continuous TCP byte stream moves between two endpoint buffers as a PSH impulse encourages progress without creating a message boundary.

History

The Push That Was Never a Message Boundary: TCP's PSH Flag

An application asks TCP to push a buffer because waiting for later data could stall the exchange. TCP marks the last segment it creates from that buffer with PSH. Yet the mark does not turn that segment into a message: the sender's write, the packets on the wire, the receiver's…

Sep 5, 2026
Learning-history paths pass through a transparent decision junction toward limited workshop seats and support.

AFNOG

AfNOG’s Reproduction-Permission Rule Turns a Talk Into a Commons Asset

AfNOG’s 2007 call asked contributors not only for a proposal, but also for permission to reproduce and publish the resulting presentation.

Sep 5, 2026
One TCP endpoint has lost its state while the other retains a connection, and a reset clears the mismatch.

History

The Connection One Side Forgot: TCP's Half-Open Reset

A TCP connection can look alive from one endpoint and already be gone from the other. The classic specifications called that split a half-open connection. Their recovery examples turn the next packet into a test of shared memory: sequence expectations collide, a reset makes the…

Sep 5, 2026
Editorial illustration of distributed DNS infrastructure, software release branches and maintainers coordinating vulnerability disclosure.

Global Institutional Trends

Who controls the clock when ISC software has a vulnerability?

Internet Systems Consortium’s authority over supported BIND and Kea releases is real, but it is not the authority of a regulator or a universal command centre. It is stewardship power: the ability to concentrate information, coordinate disclosure, produce an official remediation…

Sep 5, 2026
Conceptual illustration of an ordered block of AS numbers moving through a registry gateway into AFRINIC's inventory over a network map of Africa.

Story

AFRINIC Added 1,024 AS Numbers to Its Inventory. Its Notice Does Not Identify the Eligibility Trigger

AFRINIC Added 1,024 AS Numbers to Its Inventory. Its Notice Does Not Identify the Eligibility Trigger intelligence summary explains the development, the public evidence available to readers, the organisations involved, the regional context, market exposure, and the infrastructure…

Sep 5, 2026
Learning-history paths pass through a transparent decision junction toward limited workshop seats and support.

AFNOG

AfNOG’s Repeat-Attendance Rule Turns Training History Into Access Authority

AfNOG’s 2005 workshop notice made prior training, subsequent use, available space and financial support part of a single access decision.

Sep 5, 2026
Two equal TCP endpoints exchange crossing signals and converge on one connection.

History

When Both Sides Knocked at Once: TCP's Simultaneous Open

The standard picture of TCP begins with a client knocking and a server listening. The protocol itself has never required that casting. Its original 1981 specification described what happens when two endpoints knock at once: their SYN segments cross, each side becomes both…

Sep 5, 2026
Technical proposal cards pass through a transparent shortlist gate into a finite conference agenda.

AFNOG

AIS’s Shortlist Rule Turns Agenda Time Into Editorial Authority

The AIS 2025 presentation call invited a wide technical community, then made clear that limited programme time would place only shortlisted abstracts on the agenda.

Sep 5, 2026
Editorial illustration of six regional folders around an empty advisory chair, with a separate report binder and an undated milestone board.

Story

AFRINIC Named Six Regional Bylaws Review Members. Its Appointment Notice Leaves the Reporting Calendar Open

AFRINIC’s 2 March 2026 announcement identifies six Bylaws Review Committee members, one for each listed African sub-region, as well as the chair and secretariat. The linked terms define substantial reporting duties, but the frozen pages do not give dates for progress reports or…

Sep 5, 2026
A restarted network host waits behind a translucent boundary while old amber packet trails fade and a separate clean blue connection path becomes safe to use.

History

The Host That Had to Wait Before Speaking: TCP's Quiet Time After Restart

A restarted machine may look clean precisely because it has forgotten too much. TCP's original quiet-time rule addressed that paradox: if a host lost the sequence numbers used before a crash, it was told to emit nothing for one maximum segment lifetime. Silence was not a repair…

Sep 5, 2026
An unfinished governance binder linked by a copper line to complete evidence, decision and review cards.

Story

The New RIR Draft Says Enforceability Does Not Wait for the Procedure

Article 1.3 of the new RIR Governance Document draft says a missing common implementation procedure does not stop the document from being enforced. The next clause, added in Version 3, says a decision must still follow the procedure relevant to the entity making it, including any…

Sep 5, 2026