Blade ICE RACKSWITCH G8124-E Manuale Utente

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  Chapter 9: Quality of Service

BMD00220, October 2010

 shows the basic QoS model used by the switch. 

QoS Model 

The basic QoS model works as follows: 

Classify traffic: 



Read DSCP value. 



Read 802.1p priority value. 



Match ACL filter parameters. 

Perform actions:



Define bandwidth and burst parameters



Select actions to perform on in-profile and out-of-profile traffic



Deny packets



Permit packets



Mark DSCP or 802.1p Priority



Set COS queue (with or without re-marking)

Queue and schedule traffic: 



Place packets in one of the COS queues. 



Schedule transmission based on the COS queue. 

Ports

 ACL
Filter

Permit/Deny

Classify

Packets

Perform

Actions

Egress

Ingress

  COS
Queue

Queue and

Schedule