Configuration Guide User guide

598 FastIron Configuration Guide
53-1002494-02
Dynamic buffer allocation for FCX, FWS, and ICX devices
Configuring values for the ICX 6430
Port buffer and descriptor values in Table 108 are default values for software traffic classes. For
the ICX 6430, traffic classes are mapped to shared hardware queues (refer to “Queues for the ICX
6430 switch” on page 1973. Refer to the following are considerations for configuring your own
values and buffer profiles.
• User-defined values have precedence over default values. For example, if default values for
TC2, TC3, and TC4 are 96 and you configure 80 for TC3, then the hardware TC1 will be 80
(software TC2, TC3, and TC4 are mapped to hardware TC1).
• The higher user-configured value has precedence. For example, if the software TC2 default
value is 96 (which is also the value of TC3 and 4), if you configure 100 for TC2 and 120 for TC3,
then the hardware TC1 value will be 120 (software TC2, TC3, and TC4 are mapped to hardware
TC1).
Displaying the user-configurable buffer profile configuration on FCX and ICX
devices
To display the specified user-configurable buffer profile configuration, use the show
qd-buffer-profile <user-profile-name> command.
To display all the user-configurable buffer profiles configured on the device, use the show
qd-buffer-profile active-profile command.
To display all the buffer profiles configured on the device, use the show qd-buffer-profile all
command.
The following example shows that the user-configurable buffer profile “OneGigProfile” is configured
for 1 Gbps ports with the number of buffers and descriptors allocated to each queue. Note that
buffers and descriptors displayed in this example are not necessarily default values.
Brocade(config)# show qd-buffer-profile OneGigProfile
User Buffer Profile: OneGigProfile Port-type: 1Gig
Total Buffers = 8096 Total Descriptors = 8096
Per Queue details: Buffers Descriptors
Traffic Class 0 50 38
Traffic Class 1 50 38
Traffic Class 2 50 38
Traffic Class 3 50 38
Traffic Class 4 50 38
Traffic Class 5 50 38
Traffic Class 6 132 132
Traffic Class 7 20 20
Syntax: show qd-buffer <user-profile-name> | all
Table 110 defines the fields in the output of the show qd-buffer all command.
TABLE 110 Field definitions for the output of show qd-buffer-profile command
Field Description
User Buffer Profile The name of the user-configurable buffer profile
Port-type The type of the port: 1 Gbps or 10 Gbps or All
Total Buffers The total number of buffers allocated to the port
Total Descriptors The total number of descriptors allocated to the port