Using PfR benefits network owners in two ways:

Reducing bandwidth costs and improving network performance. Many enterprises purchase multiple WAN links from multiple carriers, with some links allocated as backups for primary service interruptions. These redundant links cost money yet sit mostly idle. With multiple links, cost savings can be quickly realized by minimizing traffic across those with "tiered-pricing".

Beyond cost, multiple links often have different performance characteristics. PfR enables networks to shift traffic as necessary to optimize a variety of chosen metrics, from application performance to bandwidth cost. Further, PfR will reroute traffic to properly operating links when parts of the network have degraded or completely failed.

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