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SuperSizing the Data Center: Big Data and Jumbo Frames

For many of the same reasons IPv6 migration is moving slower than perhaps it should given the urgent need for more IP addresses (to support all those cows connecting to the Internet) is the sheer magnitude of such an effort. Without the ability for IPv6-only nodes to talk to IPv4-only nodes, there’s a lot of careful planning that has to happen around the globe to ensure success and continued communication between the two incompatible protocols. In many ways, Jumbo Frames – despite performance advantages – suffer from the same technological incompatibility. Remember that Jumbo Frames – 9000 bytes – are incompatible with regular old sized Ethernet frames (1500 bytes). It makes sense for much the same reasons – you simply can’t stuff 9000 bytes into a frame designed to hold 1500. And one of the basic rules of Ethernet is that the smallest MTU (maximum transmission unit) used by any component in a network path determines the maximum MTU for all traffic that flows along that path.

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Source: Latest News from Cloud Computing Journal | 22 Feb 2012 | 9:32 am

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