Brocade Communications Systems 53-1003126-02 Enabling MFNM mode, Disabling MFNM mode, Displaying the current MFNM mode timeout value, Setting the current MFNM mode timeout value, Port Grouping policy considerations

• Be aware that modifying Automatic Login Balancing mode default settings using the

agautomapbalance command may yield uneven distribution of F_Ports to N_Ports. In such cases,

you might consider a manual login distribution that forces a rebalancing of F_Ports to N_Ports.

• To control automatic rebalancing to avoid disruptions when the Port Grouping policy is enabled, refer

to Rebalancing F_Ports on page 60.

Enabling MFNM mode

1. Connect to the switch and log in using an account assigned to the admin role.

2. Enter the ag --pgsetmodes command with the appropriate options to enable MFNM mode. This

command changes the monitoring mode from "default" to "managed." In the following example,

MFNM mode is enabled for port group 3.

switch:admin> ag --pgsetmodes 3 "mfnm"

Managed Fabric Name Monitoring mode has been enabled for Port Group 3

Disabling MFNM mode

1. Connect to the switch and log in using an account assigned to the admin role.

2. Enter the ag --pgdelmodes command with the appropriate options to disable MFNM mode. In the

following example, MFNM mode is disabled for port group 3.

switch:admin> ag --pgdelmodes 3 "mfnm"

Managed Fabric Name Monitoring mode has been disabled for Port Group 3

3. Enter the ag --pgshow command to display the port group configuration. If disabled, "mfnm" should

not display under PG_Mode for port 3.

For more details on this command and its operands, refer to the Fabric OS Command Reference

Manual .

Displaying the current MFNM mode timeout value

1. Connect to the switch and log in using an account assigned to the admin role.

2. Enter the ag --pgfnmtov command to display the current MFNM timeout value.

switch:admin> ag --pgfnmtov

Fabric Name Monitoring TOV: 120 seconds

Setting the current MFNM mode timeout value

1. Connect to the switch and log in using an account assigned to the admin role.

2. Enter the ag --pgfnmtov command, followed by a value in seconds.

switch:admin> ag --pgfnmtov 100

This sets the timeout value to 100 seconds.

Port Grouping policy considerations

Following are the considerations for the Port Grouping policy:

• A port cannot be a member of more than one port group.

• The PG policy is enabled by default in Fabric OS v6.0 and later. A default port group "0" (PG0) is

created, which contains all ports on the AG.

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