Parts of internet break as ‘512k day’ reached by routers

Thursday, August 14, 2014 On Tuesday many internet routers, used to find the pathways to different parts of the web, reached their memory limit of 512,000 entries in the tables they use to store the routes, causing problems for many users. A router is used to direct a user towards the area of the internet where they will find the content they are looking for, e.g. a web page. The recent problem was caused by the arbitrary memory limit built into the design of many aging routers. A limit was…

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As/400 And I Series Job System Demystified

By John Andersen One of the most essential items every system administrator and operator must understand on the AS/400, iSeries and System i power system platforms is the job and batch systems. These two portions of the system are key for performing any task in a timely manner. The job system on the midrange platform is both robust and elegant in design. At a very basic level jobs are first submitted into job queues for immediate or later processing by subsystems. By default the job queues are FIFO based, that…