This post is a follow-up to our blog last week about a small Czech provider briefly causing global Internet mayhem via a single errant routing announcement. In this incident, SuproNet (AS 47868) announced its one prefix, 94.125.216.0/21, to its backup provider, Sloane Park Property Trust (AS 29113),...

As part of Viacom and Time Warner Cable’s current spat over licensing fees Viacom has resorted to putting a pop-up message on it’s websites targeted towards Time Warner customers. Unfortunately they somehow include the college network that I help run as if we were Time Warner residential...

As readers of this blog will know, Renesys collects Internet routing data — a lot of it. We use this data in a variety of ways: in determining the impact of cable breaks, natural disasters and deliberate partitionings; in uncovering the source of hijacks or other questionable activity; in anal...

Update, 12:49 p.m.: You can try Google Chrome at http://www.google.com/chrome and I hope every Windows user takes it for a spin. It’s only a seven megabyte download, which means it’s really fast to download and try. Update, 12:46 p.m.: Chromium, the site dedicated to open-sourcing Google...

A Border Gateway Protocol ( BGP ) Autonomous System ( AS ) is identified by a number in the range 1 to 65535. AS numbers in the range 1 to 64511 are assigned by InterNIC . These are reserved and globally unique AS numbers. AS numbers in the range 64512 to 65535 are known as private AS numbers , and ...

Mzahid: /* B */ Bilişim sektöründe kullanılan kısaltmaların listesi. == A == {| | width="70px" | AA | [[Antialiasing]] |- | AAA | ''a''uthentication, ''a''uthorization and ''a''ccounting |- | AAC | [[Advanced Audio Coding]] |- | AACS | [[Advanced Access Content System]] |- | AAL | [[...

I see and hear a lot of confusion about next generation networks (NGN).  In most cases people are using the term roughly as the ITU-T defines it: A Next Generation Network (NGN) is a packet-based network able to provide services including Telecommunication Services and able to make use of multi...

It is highly desirable for Path Computation Clients (PCCs) to be able to dynamically discover a set of Path Computation Elements (PCEs) when PCCs/PCEs request a path computation to PCEs within an AS and across ASs. In such a scenario, specifically BGP/MPLS IP-VPNs, it is advantageous to use BGP to d...

Earlier this week Computerworld had an interesting article that caught my attention: Opinion: The 10 secrets of bad CIOs "In my decade as a CIO, I've seen a lot of turnover in the IT industry," said John Halamka - CIO of CareGroup Health System and Harvard Medical School. "Each time I hear about a C...

A few hours ago, Pakistan Telecom (AS 17557) began advertising a small part of YouTube's (AS 36561) assigned network. This story is almost as old as BGP. Old hands will recognize this as, fundamentally, the same problem as the infamous AS 7007 from 1997, a more recent ConEd mistake of early 2006 and...