Cisco Systems MDS 9000 Configuring a List of Switch WWNs In a Fabric, Activating Fabric Binding

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Cisco MDS 9000 Family Fabric Manager Configuration Guide

OL-6965-03, Cisco MDS SAN-OS Release 2.x

Chapter 22 FICON Configuration

Fabric Binding Configuration

To enable fabric binding using Fabric Manager, follow these steps:

Step 1 Choose Fabric > VSANxxx > Fabric Binding in the Logical Domain pane and then click the Controls

tab in the Information pane.

Step 2 Set the Command drop-down menu to enable for the VSAN(s) on which you want to enable fabric

binding.

Step 3 Click the Apply Changes icon in the Information pane to enable fabric binding.

Configuring a List of Switch WWNs In a Fabric

A user-specified fabric binding list contains a list of switch WWNs (sWWNs) within a fabric. If a sWWN

attempts to join the fabric, and that sWWN is not in the list or the sWWN is using a domain ID that

differs from the one specified in the allowed list, the ISL between the switch and the fabric is

automatically isolated in that VSAN and the switch is denied entry into the fabric.

The persistent domain ID must be specified along with the sWWN. Domain ID authorization is required

in FICON VSANs where the domains are statically configured and the end devices reject a domain ID

change in all switches in the fabric.

To configure a list of switches for fabric binding using Fabric Manager, follow these steps:

Step 1 Choose Fabric > VSANxxx > Fabric Binding in the Logical Domain pane and then click the Config

Database tab in the Information pane.

Step 2 Click the Create Row icon to add a switch to the list of allowed switches for fabric binding.

Step 3 Click the Apply Changes icon in the Information pane to enable the fabric binding.

The fabric binding maintains a configuration database (config-database) and an active database. The

config-database is a read-write database that collects the configurations you perform. These

configurations are only enforced upon activation. This activation overwrites the active database with the

contents of the config database. The active database is read-only and is the database that checks each

switch that attempts to log in.

By default, the fabric binding feature is not activated. You cannot activate the switch if entries existing

in the config database conflict with the current state of the fabric. For example, one of the already logged

in switches may be denied login by the config database. You can choose to forcefully override these

situations.

Note After activation, any already logged in switch that violates the current active database will be logged out,

and all switches that were previously denied login because of fabric binding restrictions are reinitialized.

The fabric binding feature must be enabled in each switch in the fabric that participates in the fabric

binding. By default, this feature is disabled in all switches in the Cisco MDS 9000 Family.