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Scalable network infrastructure in Layer 3 with BGP
Growth Spurt
Existing Setups
The network design described here is also interesting for existing setups that suffer from the disadvantages of the tree layout. The BGP-based setup can be quite easily introduced retroactively. To to so, you do not need to do much more than install additional network cards in the existing servers, which you then configure via BGP.
You can also use BGP to connect separate networks that were previously unable to communicate for historical reasons. In such setups, you will very likely find isolated networks that prevent changes to the central infrastructure of the core routers. An IP fabric solution provides a reliable solution in this case.
Infos
- "Valueing IT Requires New Methods" by Barry Boehm. IEEE International Conference on Exploring Quantifiable IT Yields (EQUITY), March 19, 2007, Amsterdam, The Netherlands, http://www.cs.vu.nl/equity2007/equity-report.php
- "The Myth of the Cost of Defect" by Thomas Klein: http://thklein.com/en_US/cost-of-defect/
- Quagga: http://www.nongnu.org/quagga/
- Bird: http://bird.network.cz/?index
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