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Instructor: Lawrence Landweber,Jun Murai
No. 20 11/08/1999
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Update Handling
BGP speaker receives an update with routes
Decision process
D (attributes of route) ------> non neg integer
D specifies the degree of preference for a route
route to dest with highest preference used
Note that D does not depend on the existence or non-existence of other routes
D is based on policy considerations, not necessarily on the cost of routes