Internet Infrastructure Review (IIR) Vol.67
November 2025

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• Executive Summary[466KB]
• 1) Periodic Observation Report "Broadband Traffic Report Traffic Continues to Grow Steadily"[2MB]

  This document provides a comprehensive analysis of traffic trends in broadband and mobile services operated by IIJ.

• 2) Periodic Observation Report "Effectiveness of Defensive Action and IIJ's Approach to Sender Domain Authentication (ARC)"[1.1MB]

  It presents a report on the "defense measures" that IIJ began fully implementing in 2024 and offers an in-depth examination of the adoption of sender domain authentication and route encryption, highlighting the latest developments both within Japan and internationally.

• 3) Focused Research "Answering Calls to Move Away from VMware —The Tight Relationship Between Kubernetes and Virtual Environments"[164KB]

  The document discusses the reassessment of virtualization infrastructure prompted by the VMware issue, as well as the practical applications and challenges associated with transitioning to next-generation platforms utilizing Kubernetes at IIJ.

• 4) Focused Research "The 3G Sunset and MVNOs"[698KB]

  It also details IIJ's initiatives in preparation for the scheduled discontinuation of NTT Docomo's 3G service at the end of March 2026, including operational differences based on device implementation and specific response strategies.