Dear user,
Correct Answer: ABD.
A routing loop is a serious network problem which happens when a data packet is continually routed through the same routers over and over. The data packets continue to be routed within the network in an endless circle. A routing loop can have a catastrophic impact on a network, and in some cases, completely disabling the network. Normally Routing Loop is a problem associated with Distance Vector Protocols.
How routing loops affect network performance?
• A major portion of the precious bandwidth which is available for normal user traffic of the affected routers will be consumed by looping IP datagram packets.
• The major portion of the processing power of the affected routers is used to process the looping IP datagram packets.
Routing Loop can happen in large internetworks when a second topology change emerges before the network is able to converge on the first change. Convergence is the term used to describe the condition when all routers in an internetwork have agreed on a common topology. Link state protocols tend to converge very quickly, while distance vector protocols tend to converge slowly.
The following methods are used to avoid Routing Loops.
Thank you.