Routing Table Principles

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Routing Table Principles

Postby lik » Sat Mar 13, 2010 2:22 pm

Let's introduce three routing table principles, as described by Alex Zinin in his book, Cisco IP Routing.

Principle 1:
"Every router makes its decision alone, based on the information it has in its own routing table."
Principle 2: "The fact that one router has certain information in its routing table does not mean that other routers have the same information."
Principle 3: "Routing information about a path from one network to another does not provide routing information about the reverse, or return path."
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