Brocade Multi-Service IronWare QoS and Traffic Management Configuration Guide (Supporting R05.6.00) - Manual (Page 72)

58 Multi-Service IronWare QoS and Traffic Management Configuration Guide
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Egress port and priority based rate shaping
3
Configuring port-based rate shaping
When setting rate shaping for a port, you can limit the amount of bandwidth available on a port
within the limits of the port’s rated capacity.
NOTE
The egress rate shaping on a port-based and priority based rate shaper is configured in increments
of 1Kbps
These limits provide a minimum and maximum rate that the port can be set to. They also provide
the increments at which the port capacity can be set. In operation, you can set any number
between the minimum and maximum values. The device will automatically round-up the value to
the next higher increment.
To set a 10 Gbps port to the incremental port capacity over 2 Gbps, use the following command.
Brocade(config)# interface ethernet 2/2
Brocade(config-if-e10000-2/2)# qos shaper 2000000
Syntax: [no] qos shaper rate
The rate variable sets the rate you want to set for the port within the limits available.
Configuring port and priority-based rate shaping
When setting rate shaping for a priority queue, you can limit the amount of bandwidth available for
a specified priority within the limits of the capacity of the port that the priority is configured on. You
can set the limit for the priority to any value from one to the port’s maximum rating and the device
will automatically round-up the value to the next increment supported. This will be a slightly higher
value than what you specify with the command. For example, if you set the rate for priority 2 on a
10G port to 2,000,000,100, the actual rate would be slightly higher.
NOTE
The egress rate shaping burst size for a port and priority-based shaper is 4096 bytes.
To set the capacity for priority 2 traffic on a 10 Gbps port to the incremental capacity over 2 Gbps,
use the following command.
Brocade(config)# interface ethernet 2/2
Brocade(config-config-cpu-port)# qos shaper priority 2 2000000
Syntax: [no] qos shaper priority priority-level rate
The priority-level variable specifies the priority that you want to set rate shaping for on the port
being configured.
The rate variable sets the rate you want to set for the priority.
The priority can be from 0 through 7.
The rate parameter sets the rate shaping value for the priority queue configured on the CPU port.
The acceptable value can be from 1 through 1000000 Kbps.
The no option is used to reset the port shaping rate for the priority queue.