> # Configuring iSLB

> Note For iSLB, all switches in the fabric must be running Cisco MDS SAN-OS Release 2.1(1a) or later.

> This section covers the following topics:

> - Configuring iSLB Using Device Manager
> - Assigning VSAN Membership for iSLB Initiators
> - Configuring and Activating Zones for iSLB Initiators and Initiator Targets
> - Restricting iSLB Initiator Authentication
> - Mutual CHAP Authentication
> - Configuring Load Balancing Using VRRP

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