Modes – Brocade Network OS Command Reference v4.1.0 User Manual

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Network OS Command Reference

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modes

Enables and disables operating modes for port groups.

Synopsis

modes mode_name

no modes mode_name

Operands

mode_name

lb (Automatic Login Balancing)

Defaults

Command Modes

Port Grouping configuration

Description

Enables or disables operating modes for a specific port group. Login Balancing (LB) is the only
mode that you can enable. Automatic Login Balancing is enabled by default for a port group when
the port group is created. If LB mode is enabled for a port group and a VF_Port goes offline, logins
in the port group are redistributed among the remaining VF_Ports. Similarly, if an N_Port comes
online, port logins in the port group are redistributed to maintain a balanced N_Port-to-VF_Port
ratio.

Usage Guidelines

You must be in Port Grouping configuration mode for a specific port group to use this command.
Entering no modes mode name disables the mode.

Consider the following when using LB mode with show running-config ag and show ag commands:

•

The only Port Grouping mode that you can enable or disable is LB mode.

•

When LB mode is disabled in a port group, the show running-config ag, show ag map, and
show ag commands display the configured VF_Port to N_Port mapping. This is because
configured and active mapping are the same.

•

When LB mode is enabled in a port group, show ag and show ag map displays the active
mapping only because VF_Port to N_Port mapping is based on the current distributed load
across all N_Ports. The show running-config ag command displays the configured mapping
only.