Configuration Guide User guide

FastIron Configuration Guide 1953
53-1002494-02
Rate shaping overview
Configuring outbound rate shaping for a port
To configure the maximum rate at which outbound traffic is sent out on a port, enter commands
such as the following.
Brocade(config)#interface e 1/2
Brocade(config-if-e1000-2)#rate-limit output shaping 1300
The above commands affect FastIron X Series and Brocade FCX Series systems differently:
• On FastIron X Series devices, the configured 1300 Kbps outbound rate shaping on port 2 is
rounded up to the nearest multiple of 651 Kbps, which is 1302 Kbps. This value is the actual
limit on the port for outbound traffic.
• On Brocade FCX Series devices, the configured outbound rate shaper of 651 Kbps on port
1/15 is rounded to 616 Kbps. The configured 1300 Kbps limit on port 15 is rounded to 1232
Kbps..
Syntax: [no] rate-limit output shaping <value>
Configuring outbound rate shaping for a specific priority
To configure the maximum rate at which outbound traffic is sent out on a port priority queue, enter
commands such as the following.
Brocade(config)#interface e 1/2
Brocade(config-if-e1000-2)#rate-limit output shaping 500 priority 7
The above commands affect FastIron X Series and Brocade FCX Series systems differently:
• On FastIron X Series devices, the configured 500 Kbps limit for outbound traffic on Priority
queue 7 on port 2 is rounded up to the nearest multiple of 651 Kbps, which is 651 Kbps.
• On Brocade FCX Series devices, the configured 500 Kbps limit for outbound traffic on priority
queue 7 on port 2 is rounded to a value that is programmable by the hardware, which is 440
Kbps.
Syntax: [no] rate-limit output shaping <value> priority <priority-queue>
Specify 0-7 for <priority-queue>
Configuring outbound rate shaping for a trunk port
This feature is supported on individual ports of a static trunk group and on LACP trunk ports.
However, it is not supported on LACP trunk ports for FCX devices.
To configure the maximum rate at which outbound traffic is sent out on a trunk port, enter the
following on each trunk port where outbound traffic will be shaped.
Brocade(config)#trunk e 1/13 to 1/16
Brocade(config-trunk-13-16)#config-trunk-ind
Brocade(config-trunk-13-16)#rate-limit output shaping ethe 1/15 651
Brocade(config-trunk-13-16)#rate-limit output shaping ethe 1/14 1300
The above commands configure an outbound rate shaper on port 1/14 and port 1/15. The
commands affect FastIron X Series devices and Brocade FCX Series devices differently: