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quality of service

Hi all, can anyone please explain to me the link between the qos values you put in and the queing methods used? are they totally seperate?

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Cisco Employee

Re: quality of service

Hi Carl,

QoS values is the way to identified your packets. It's usually based on DSCP field.

Packets marked with the same QoS value will have the same QoS treatment as they belong to the same Class of Service.

I suppose when you said queuing, you refer to scheduling which decides which packet should be transmitted on the wire. WFQ, CBWFQ, LLQ, MDRR are examples of Cisco implementation of scheduling algorithm.

So you're right. QoS values are used for Classification and scheduling algo is part of congestion management

http://www.cisco.com/en/US/docs/ios/qos/configuration/guide/qos_overview_ps6350_TSD_Products_Configuration_Guide_Chapter.html

Hope this helps

Thanks

Laurent.

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