Send documentation comments to mdsfeedback-doc@cisco.com
50-74
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-17256-03, Cisco MDS NX-OS Release 4.x
Chapter 50 Configuring iSCSI
iSNS Cloud Discovery
The iSNS cloud discovery feature provides information to the iSNS server on the various interfaces
reachable from an initiator by partitioning the interfaces on a switch into disjointed IP clouds. This
discovery is achieved by sending messages to all other known IPS ports that are currently up and,
depending on the response (or the lack of it), determines if the remote IPS port is in the same IP network
or in a different IP network.
Cloud discovery is initiated when the following events occur:
• Manual requests from the CLI initiate cloud discovery from the CLI. This action causes the
destruction of existing memberships and makes new ones.
• Auto-discovery of the interface results in an interface being assigned to its correct cloud. All other
cloud members are not affected. The membership of each cloud is built incrementally and is initiated
by the following events:
–
A Gigabit Ethernet interface comes up. This can be a local or remote Gigabit Ethernet interface.
–
The IP address of a Gigabit Ethernet interface changes.
–
The VRRP configuration on a port changes.
The iSNS server distributes cloud and membership information across all the switches using CFS.
Therefore, the cloud membership view is the same on all the switches in the fabric.
Note For CFS distribution to operate correctly for iSNS cloud discovery, all switches in the fabric must be
running Cisco SAN-OS Release 3.0(1) or NX-OS 4.1(1b) and later.
Configuring iSNS Cloud Discovery
This section describes how to configure iSNS cloud discovery and includes the following topics:
• Enabling iSNS Cloud Discovery, page 50-74
• Initiating On-Demand iSNS Cloud Discovery, page 50-74
• Configuring Automatic iSNS Cloud Discovery, page 50-75
Enabling iSNS Cloud Discovery
To enable iSNS cloud discovery using Fabric Manager, follow these steps:
Step 1 Choose End Devices > iSNS.
You see the iSNS configuration in the Information pane.
Step 2 Click the Control tab and select enable from the Command drop-down menu for the cloud discovery
feature.
Step 3 Click the Apply Changes icon to save this change.
Initiating On-Demand iSNS Cloud Discovery
To initiate on-demand iSNS cloud discovery using Fabric Manager, follow these steps:
To Next Page
Loading...
Need help?
General
