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A comment on Why firewalls won’t matter in a few years. Parent comment

Re:Why firewalls won’t matter in a few years by thomble on Friday May 29, 2015 @01:32PM (#9626009)
Lateral flows of data within a network, as opposed to traffic that goes through a gateway.
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Re:Why firewalls won’t matter in a few years by danellis on Friday May 29, 2015 @01:36PM (#9626052)
Interesting. Never heard the term before.
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Re:Why firewalls won’t matter in a few years by RyJones on Friday May 29, 2015 @01:56PM (#9626208)
I think it's from American football - east/west is lateral movement, north/south towards/away from the goal lines.

Apparently this has nothing to do with getting sun in your eyes.

http://stupidquestionarchives.blogspot.com/2008/03/football-...

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Re:Why firewalls won’t matter in a few years by scurvy on Friday May 29, 2015 @05:57PM (#9627742)
I'd guess it more has to do with physical colo/datacenter layouts. Traffic moving between racks is considered east/west*. Traffic moving in and out of your routers (and through to the meet-me-room) would take place over fiber pairs up into the ceiling or down through the floor.

Just a guess.

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