Gossip Article: What are the Implications of Routing Loops?

Jumat, 09 Januari 2009

What are the Implications of Routing Loops?

A routing loop can have a devastating effect on a network, resulting in degraded network performance or even a network downtime.

A routing loop can create the following conditions:

Link bandwidth will be used for traffic looping back and forth between the routers in a loop.
A router's CPU will be strained due to looping packets.
A router's CPU will be burdened with useless packet forwarding that will negatively impact the convergence of the network.
Routing updates may get lost or not be processed in a timely manner. These conditions would introduce additional routing loops, making the situation even worse.
Packets may get lost in "black holes."

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