While troubleshooting a networking issue, you notice that there are packets that are continually traversing the network and unable to reach their destination. It is determined that the reason for this is due to the routing algorithm containing incorrect paths to a network node. This is an example of what type of common issue?
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A routing loop forms because of errors in the routing algorithm that causes a path to form that results in a loop. This can happen when 2 nodes think that the path to a third node is incorrectly through each other (X thinks the path to Z is through Y. Y thinks the path to Z is through X).
Wikipedia
A routing loop is a common problem with various types of networks, particularly computer networks. They are formed when an error occurs in the operation of the routing algorithm, and as a result, in a group of nodes, the path to a particular destination forms a loop.In the simplest version, a routing loop of size two, node A thinks that the path to some destination (call it C) is through its neighbouring node, node B. At the same time, node B thinks that the path to C starts at node A.
Thus, whenever traffic for C arrives at either A or B, it will loop endlessly between A and B, unless some mechanism exists to prevent that behaviour.
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