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HP 8/40 Access Gateway Administrator's Guide (53-1001760-01, June 2010) - Page 57

Rebalancing F_Ports

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Port Grouping policy 3 Port Group 3 created successfully 3. Enter the ag --pgshow command to verify the port group was created. switch:admin> ag --pgshow PG_ID PG_Name PG_Mode N_Ports F_Ports 0 pg0 lb,mfnm none none 2 SecondFabric - 0;2 4;5;6 3 FirstFabric lb 1;3 10;11 Rebalancing F_Ports To minimize disruption that could occur once F_Ports go offline or when additional N_Ports are brought online you can modify the default behavior of the automatic login balancing feature by disabling or enabling rebalancing of F_Ports when F_Port offline or N_Port online events occur. 1. Connect to the switch and log in using an account assigned to the admin role. 2. Enter the agautomapbalance --enable command with appropriate operands to enable automatic login redistribution of F_Ports. In the following example, rebalancing of F_Ports in port group 1 in Access Gateway is enabled when an F_Port online event occurs. switch:admin> agautomapbalance --enable -fport -pg 1 3. Enter the agautomapbalance --disable - all command with appropriate operands to disable automatic login distribution of N_Ports for all PGs in the Access Gateway when an N_Port online event occurs. switch:admin> agautomapbalance --disable -nport -all 4. Enter the agautomapbalance --disable - all command with appropriate operands to disable automatic login distribution of F_Ports for all port groups in the Access Gateway when an F_Port online event occurs. switch:admin> agautomapbalance --disable -fport -all 5. Enter the agautomapbalance --show command to display the automatic login redistribution settings for port groups. In the following example, there are two port groups, 0 and 1. switch:admin> agautomapbalance --show AG Policy: pg PG_ID LB mode nport fport 0 Enabled Enabled Disabled 1 Disabled - - This command also displays the automatic login redistribution settings for N_Ports and F_Ports as shown in the following example. switch:admin> agautomapbalance --show AG Policy: Auto Access Gateway Administrator's Guide 37 53-1001760-01

Section	Page
About This Document	13
How this document is organized	13
Supported hardware and software	13
What’s new in this document	14
Document conventions	15
Text formatting	15
Command syntax conventions	15
Notes, cautions, and warnings	15
Notice to the reader	16
Key terms	16
Additional information	17
Brocade resources	17
Other industry resources	17
Optional Brocade features	18
Getting technical help	18
Document feedback	19
Access Gateway Basic Concepts	21
In this chapter	21
Brocade Access Gateway overview	21
Comparing Native Fabric and Access Gateway modes	21
Fabric OS features in Access Gateway mode	23
Access Gateway port types	24
Comparison of Access Gateway ports to standard switch ports	24
Access Gateway hardware considerations	25
Configuring Ports in Access Gateway mode	27
In this chapter	27
Enabling and disabling Access Gateway mode	27
Port state description	29
Access Gateway mapping	30
Port-based mapping	30
Device-based mapping	35
Considerations for Access Gateway mapping	42
N_Port configurations	44
Displaying N_Port configurations	45
Unlocking N_Ports	45
Managing Policies and Features in Access Gateway Mode	47
In this chapter	47
Access Gateway policies overview	47
Displaying current policies	47
Access Gateway policy enforcement matrix	48
Advanced Device Security policy	48
How the ADS policy works	48
Enabling and disabling the Advanced Device Security policy	49
Setting the list of devices allowed to log in	49
Setting the list of devices not allowed to log in	50
Removing devices from the list of allowed devices	50
Adding new devices to the list of allowed devices	50
Displaying the list of allowed devices on the switch	51
ADS policy considerations	51
Upgrade and downgrade considerations for the ADS policy	51
Automatic Port Configuration policy	51
How the APC policy works	51
Enabling and disabling the APC policy	52
Automatic Port Configuration policy considerations	52
Upgrade and downgrade considerations for the APC policy	53
Port Grouping policy	53
How port groups work	53
Adding an N_Port to a port group	54
Deleting an N_Port from a port group	55
Removing a port group	55
Renaming a port group	55
Disabling the Port Grouping policy	55
Port Grouping policy modes	56
Creating a port group and enabling Automatic Login Balancing mode	56
Rebalancing F_Ports	57
Enabling Managed Fabric Name Monitoring mode	58
Disabling Managed Fabric Name Monitoring mode	58
Displaying the current fabric name monitoring timeout value	58
Setting the current fabric name monitoring timeout value	59
Port Grouping policy considerations	59
Upgrade and downgrade considerations for the Port Grouping policy	60
Device Load Balancing Policy	60
Enabling WWN Load Balancing	60
Disabling Device Load Balancing	60
Device Load Balancing considerations	61
Persistent ALPA Policy	61
Enabling Persistent ALPA	62
Disabling Persistent ALPA	62
Persistent ALPA device data	62
Removing device data from the database	62
Displaying device data	63
Clearing ALPA values	63
Persistent ALPA policy considerations	63
Upgrade and downgrade considerations for Persistent ALPA	63
Failover	64
Failover with port-based mapping	64
Failover with device-based mapping	66
Enabling and disabling Failover on a N_Port	67
Enabling and disabling Failover for a port group	67
Upgrade and downgrade considerations for Failover	68
Failback	68
Failback configurations in Access Gateway	68
Enabling and disabling Failback on an N_Port	69
Enabling and disabling Failback for a port group	70
Upgrade and downgrade considerations for Failback	70
Trunking in Access Gateway mode	70
How Trunking works	70
Configuring Trunking on the Edge switch	71
Configuration management for trunk areas	72
Enabling trunking	73
Disabling F_Port trunking	74
Trunking monitoring	74
Trunking considerations for the Edge switch	74
Trunking considerations for Access Gateway module	77
Upgrade and downgrade considerations for Trunking in Access Gateway mode	77
Adaptive Networking on Access Gateway	78
Upgrade and downgrade considerations with Adaptive Networking in AG mode enabled	79
Adaptive Networking on Access Gateway considerations	79
Per Port NPIV login limit	80
Setting the login limit	80
Considerations for the Brocade 8000	80
SAN Configuration with Access Gateway	83
In this chapter	83
Connectivity of multiple devices overview	83
Direct target attachment	83
Considerations	83
Target aggregation	84
Access Gateway cascading	84
Fabric and Edge switch configuration	85
Verifying the switch mode	85
Enabling NPIV on M-EOS switches	86
Connectivity to Cisco Fabrics	87
Enabling NPIV on a Cisco switch	87
Rejoining Fabric OS switches to a fabric	87
Reverting to a previous configuration	87
Troubleshooting	89

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Access Gateway Administrator’s Guide

53-1001760-01

Port Grouping policy

Port Group 3 created successfully

Enter the

pgshow

command to verify the port group was created.

switch:admin>

ag --pgshow

PG_ID PG_Name

PG_Mode

N_Ports

F_Ports

-----------------------------------------------

pg0

lb,mfnm

none

SecondFabric

0;2

4;5;6

FirstFabric

1;3

10;11

Rebalancing F_Ports

To minimize disruption that could occur once F_Ports go offline or when additional N_Ports are

brought online you can modify the default behavior of the automatic login balancing feature by

disabling or enabling rebalancing of F_Ports when F_Port offline or N_Port online events occur.

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

Enter the

agautomapbalance

enable

command with appropriate operands to enable

automatic login redistribution of F_Ports. In the following example, rebalancing of F_Ports in

port group 1 in Access Gateway is enabled when an F_Port online event occurs.

switch:admin>

agautomapbalance --enable -fport -pg 1

Enter the

agautomapbalance

disable - all

command with appropriate operands to disable

automatic login distribution of N_Ports for all PGs in the Access Gateway when an N_Port

online event occurs.

switch:admin> agautomapbalance --disable -nport -all

Enter the

agautomapbalance

disable - all

command with appropriate operands to disable

automatic login distribution of F_Ports for all port groups in the Access Gateway when an

F_Port online event occurs.

switch:admin> agautomapbalance --disable -fport -all

Enter the

agautomapbalance

show

command to display the automatic login redistribution

settings for port groups. In the following example, there are two port groups, 0 and 1.

switch:admin>

agautomapbalance --show

AG Policy: pg

--------------------------------------------

PG_ID LB mode nport fport

--------------------------------------------

0 Enabled

Enabled

Disabled

1 Disabled

---------------------------------------------

This command also displays the automatic login redistribution settings for N_Ports and

F_Ports as shown in the following example.

switch:admin>

agautomapbalance --show

-------------------------------------------------

AG Policy: Auto