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An Early Peek at the BlackBerry PlayBook

Posted by Adam Chappell on February 17, 2011
Posted in: Uncategorized. Tagged: barcelona, blackberry, playbook. Leave a comment

PlayBook Home Screen

It was with much anticipation and excitement that Research in Motion, arguably pioneers of practical smartphone technology, revealed their new iPad-tackling PlayBook tablet device at GSMA’s Mobile World Congress in Barcelona this week. Continue reading…

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Facebook Social Engineering

Posted by Adam Chappell on February 2, 2010
Posted in: Computer Security. Tagged: facebook, social engineering. Leave a comment

So after returning from a slight blog writing hiatus (for a variety of reasons), I find myself logged into Facebook late one Sunday afternoon when a former work colleague that I haven’t seen for a while pops up on the integrated IM system. Continue reading…

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Quagga chokes on large 4-octet AS numbers

Posted by Adam Chappell on May 11, 2009
Posted in: BGP, Internet. Tagged: bgp, quagga. Leave a comment

Last weekend – a bank holiday weekend in the UK – saw a rather significant BGP-related disruption on the Internet. Fortunately it didn’t affect the mainstream router vendors, but caused service interruptions for anyone dependent on certain versions of the Quagga routing protocol suite (an open-source collection of routing protocol implementations with a configuration management interface that closely resembles mainstream Cisco routers). Continue reading…

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Problems with BGP Prepending

Posted by Adam Chappell on February 21, 2009
Posted in: BGP, Internet. Tagged: bgp, nanog. 2 Comments

I’ve spent considerable time this week working on a problem caused by accidental and unintentional BGP AS Path prepending. For those not in the know, AS Path prepending is the so-called practice of artificially extending the BGP AS Path attribute associated with one’s Internet routes in order to influence the preference in route selection on foreign networks. Continue reading…

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Capacity Planning and Traffic Engineering with Packet Design

Posted by Adam Chappell on February 8, 2009
Posted in: Traffic Engineering. Tagged: isis, ospf, packet design. 1 Comment

I was afforded today a brief overview of Packet Design’s software products in the areas of capacity planning and traffic engineering on IP networks. Continue reading…

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Submarine Cable Breaks

Posted by Adam Chappell on January 7, 2009
Posted in: Uncategorized. Tagged: interoute. Leave a comment

One of the most exciting things about working in a large telecommunications company such as Interoute is the unifying effect of people all around the company when faced with a crisis. Such crises are thankfully rare in occurrence, but in the early morning of Friday December 19 Continue reading…

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Network Planning with Cariden Mate

Posted by Adam Chappell on October 10, 2008
Posted in: MPLS. Tagged: cariden. 1 Comment

Over the last few weeks, I’ve been spending time evaluating Cariden Mate – a software tool designed to assist the task of capacity planning and traffic engineering on large scale IP networks. As a result I can provide a brief review of its capabilities. Continue reading…

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