Configuration Guide User guide

584 FastIron Configuration Guide
53-1002494-02
Dynamic buffer allocation for QoS priorities for FastIron X Series devices
Modifying system parameter default values
Information for the configurable tables appears under the columns that are shown in bold type in
the above examples. To simplify configuration, the command parameter you enter to configure the
table is used for the table name. For example, to increase the capacity of the IP route table, enter
the following commands.
Brocade(config)#system-max ip-route 120000
Brocade(config)#write memory
Brocade(config)#exit
Brocade#reload
Syntax: system-max ip-route <num>
The <num> parameter specifies the maximum number of routes in the IP route table. The
minimum value is 4096. The maximum value is 524288 (subject to route patterns for FSX). The
default is 80000 IP routes.
NOTE
If you accidentally enter a value that is not within the valid range of values, the CLI will display the
valid range for you.
To increase the number of IP subnet interfaces you can configure on each port on a device running
Layer 3 code from 24 to 64, enter the following commands.
Syntax: system-max ip-subnet-port <num>
The <num> parameter specifies the maximum number of subnet addresses per port and can be
from 24 – 128. The default is 24.
Dynamic buffer allocation for QoS priorities for
FastIron X Series devices
NOTE
This section applies to FastIron X Series devices only. To configure dynamic buffer limits on FastIron
WS, Brocade FCX Series, and ICX devices, refer to “Dynamic buffer allocation for FCX, FWS, and ICX
devices” on page 589.
By default, Brocade IronWare software allocates a certain number of buffers to the outbound
transmit queue for each port, based on QoS priority (traffic class). The buffers control the total
number of packets permitted in the outbound transmit queue for the port. For each port, the
Brocade device defines the maximum outbound transmit buffers, also called queue depth limits,
as follows:
Brocade(config)#system-max ip-subnet-port 64
Brocade(config)#write memory
Brocade(config)#exit
Brocade#reload