There are 3 types of routing strategies.

1. Hot potato
The message is delivered to the shortest output queue

2. Pre-Determined
In this mode the message itself contains information on how the message should be routed

3. Directory
Routing table: This finds the shortest way possible to arrive to destination
Here the router decides how to forward packets based on a routing table where for a specific destination it will first try the first preference  followed by the second if unsuccessful etc….

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