beautypg.com

Brocade FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide User Manual

Page 56

background image

Port buffer and descriptors values on ICX 6450 devices

1

(Continued)

TABLE 11

1 Gbps buffers

10 Gbps buffers

1Gbps descriptors

10 Gbps descriptors

TC3

144

192

144

192

TC4

144

192

144

192

TC5

192

256

192

256

TC6

192

256

192

256

TC7

192

256

192

256

1 Values are the same for stand-alone and stacking systems.

Configuring values for the ICX 6430

Port buffer and descriptor values in

Table 10

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" section in the FastIron Ethernet Switch Traffic Management Guide . 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.

device(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

The following table defines the fields in the output of the show qd-buffer all command.

Displaying the user-configurable buffer profile configuration on FCX and ICX devices

56

FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide

53-1003086-04