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Inside Cisco IOS Software Architecture (CCIE Professional Development) by Russ CCIE #2635 White, Curtis CCIE #1521 Murphy, Vijay CCIE #1606 Bollapragada

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Custom Queuing

Custom queuing is a platform-independent congestion management mechanism very similar to priority queuing. Custom queuing provides fairness in servicing the queues, unlike priority queuing, which can potentially starve non–high priority queues. Going back to the grocery store line example, let's say the clerk can now service only up to a certain number of customers from the club card line before returning to the customers in the non–club card line, and vice-versa. The clerk now alternates between the two lines, checking out the number of people allowed in one line before switching to the other line.

Custom queuing allows 16 configurable queues, each with a count specifying how many bytes of data should be delivered from the queue ...

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