Modifying system parameter default values, Egress buffer thresholds for qos priorities – Brocade TurboIron 24X Series Configuration Guide User Manual

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Brocade TurboIron 24X Series Configuration Guide

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Egress buffer thresholds for QoS priorities

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.

TurboIron(config)#system-max ip-route 120000

TurboIron(config)#write memory

TurboIron(config)#exit

TurboIron#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 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.

Egress buffer thresholds for QoS priorities

NOTES:

The terms QoS priority and traffic class are used interchangeably in this section and
mean the same thing.

Buffer threshold level-3 to maximum does not change the buffering behavior of the
device in release 04.2.00 and later.

The switch uses egress buffer threshold levels to dynamically adjust each port egress queue
(outbound transmit queue) based on QoS priority (traffic class) and jumbo frame support. When
the egress buffer queue is full, any new packets destined for the egress queue will be dropped.

The following egress buffer thresholds can be adjusted by an administrator:

Egress Buffer Threshold for all Traffic Classes for a port – When this is configured, the
specified egress buffer threshold will be applied to all traffic classes (0 – 7) on a port.

rmon-entries

RMON control table entries

session-limit

Session entries

spanning-tree

Spanning tree instances

view

SNMP views

virtual-interface

Virtual routing interfaces

vlan

VLANs

mld-max-group-addr

MLD group limit

igmp-snoop-mcache

IGMP snooping cache entries

mld-snoop-mcache

MLD snooping cache entries

TABLE 51

System parameters in show default values command (Continued)

This system parameter...

Defines the maximum number of...

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