Brocade FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide - Manual (Page 51)

Sample configuration for buffer profile with qd-descriptor and qd-buffer
commands on FCX and ICX
This sample configuration assumes a four-unit stack with the following topology.
Note that there is no packet processor 3 or 7, because stack units 2 and 4 are
24-port devices.
• Stack unit 1, 48 ports - Packet processor numbers 0 and 1
• Stack unit 2, 24 ports - Packet processor number 2
• Stack unit 3, 48 ports - Packet processors 4 and 5
• Stack unit 4, 24 ports - Packet processor number 6
The following commands allocate available buffers to be used by priority 0
queues in the four-unit stack.
qd-descriptor 0 1 4095
qd-descriptor 1 1 4095
qd-descriptor 2 1 4095
qd-descriptor 4 1 4095
qd-descriptor 5 1 4095
qd-descriptor 6 1 4095
qd-descriptor 0 2 4095
qd-descriptor 1 2 4095
qd-descriptor 2 2 4095
qd-descriptor 4 2 4095
qd-descriptor 5 2 4095
qd-descriptor 6 2 4095
qd-descriptor 0 1 4095 0
qd-descriptor 1 1 4095 0
qd-descriptor 2 1 4095 0
qd-descriptor 4 1 4095 0
qd-descriptor 5 1 4095 0
qd-descriptor 6 1 4095 0
qd-descriptor 0 2 4095 0
qd-descriptor 1 2 4095 0
qd-descriptor 2 2 4095 0
qd-descriptor 4 2 4095 0
qd-descriptor 5 2 4095 0
qd-descriptor 6 2 4095 0
qd-buffer 0 1 4095
qd-buffer 1 1 4095
qd-buffer 2 1 4095
qd-buffer 4 1 4095
qd-buffer 5 1 4095
qd-buffer 6 1 4095
qd-buffer 0 2 4095
qd-buffer 1 2 4095
qd-buffer 2 2 4095
qd-buffer 4 2 4095
qd-buffer 5 2 4095
qd-buffer 6 2 4095
qd-buffer 0 1 4095 0
qd-buffer 1 1 4095 0
qd-buffer 2 1 4095 0
qd-buffer 4 1 4095 0
qd-buffer 5 1 4095 0
qd-buffer 6 1 4095 0
qd-buffer 0 2 4095 0
qd-buffer 1 2 4095 0
qd-buffer 2 2 4095 0
qd-buffer 4 2 4095 0
qd-buffer 5 2 4095 0
qd-buffer 6 2 4095 0
Configuring user-configurable buffer profiles on FCX and ICX devices
A buffer profile is a mechanism to arbitrarily allocate the egress buffers and descriptors limits to be
applied to a port and its queues. Users can define a limit for a port and its queues by configuring the
buffer profiles on the device. Therefore, user-configurable buffer profiles provide a template to allocate
Configuring user-configurable buffer profiles on FCX and ICX devices
FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide 51
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