Symbolic Name; Switch Administrative States; Broadcast Support; In-Band Management - HP StorageWorks 8/20q User Manual

Symbolic name

The symbolic name is a user-defined name of up to 32 characters that identifies the switch. The symbolic
name is used in the displays and data windows to help identify switches. The following characters may not
be used in the symbolic name: pound sign (#), semi-colon (;), and comma (,).

Switch administrative states

The switch administrative state determines the operational state of the switch. The switch administrative
state exists in two forms: configured administrative state and current administrative state.
The configured administrative state is the state that is saved in the switch configuration and is preserved
across switch resets. Enterprise Fabric Management Suite always makes changes to the configured
administrative state. The configured administrative state appears in the Switch Properties dialog box.
The current administrative state is the state that is applied to the switch for temporary purposes and is not
retained across switch resets. The current administrative state is set using the Set Switch command. For
information about the command line interface, see the HP StorageWorks 8/20q Fibre Channel Switch
Command Line Interface Guide or the HP StorageWorks SN6000 Fibre Channel Switch Command Line
Interface Guide.
The switch administrative state values are:
• Online—Switch is available.
• Offline—Switch is unavailable.
• Diagnostics—Switch is in diagnostics mode, is unavailable, and tests can be run on all ports of the
switch.

Broadcast support

Broadcast is supported on the switch and enables TCP/IP support. Broadcast is implemented using the
proposed standard specified in Multi-Switch Broadcast for FC-SW-3, T1 1 Presentation Number
T1 1/02-031v0. Fabric Shortest Path First (FSPF) is used to set up a fabric spanning tree used in transmission
of broadcast frames. Broadcast frames are retransmitted on all ISLs indicated in the spanning tree and all
online N_Ports and NL_Ports. Broadcast zoning is supported with zones. The default setting is Enabled.

In-band management

In-band management is the ability to manage switches across inter-switch links. Enterprise Fabric
Management Suite, SNMP, management server, and the application programming interface use the
in-band management capability. The switch comes from the factory with in-band management enabled. If
you disable in-band management on a particular switch, you can no longer communicate with that switch
by means other than a direct Ethernet or serial connection.

Fabric device management interface

Fabric Device Management Interface (FDMI) provides a means to gather and display device information
from the fabric and enables FDMI-capable devices to register certain information with the fabric, when
FDMI is Enabled. Enterprise Fabric Management Suite reports any and all FDMI information reported by
the entry switch, if FDMI is enabled on the entry switch. To view FDMI data, FDMI must be enabled on the
entry switch and on all other switches in the fabric which are to report FDMI data.
FDMI is comprised of the fabric-to-device interface and the application-to-fabric interface. The
fabric-to-device interface enables a device's management information to be registered. The
application-to-fabric interface provides the framework by which an application obtains device information
from the fabric. Use the FDMI HBA Entry Limit field on the Switch Properties dialog box to configure the
maximum number of HBAs that can be registered with a switch. If the number of HBAs exceeds the
maximum number, the FDMI information for those HBAs cannot be registered.
Select the FDMI Enabled option on the Switch Properties dialog box to enable or disable FDMI. If FDMI is
enabled on an HBA, the HBA forwards information about itself to the switch when the HBA logs into the
switch. If FDMI is Enabled on a switch, the switch stores the HBA information in its FDMI database.
Disabling FDMI on a switch clears the FDMI database. If you disable FDMI on a switch and then re-enable
it, you must reset the ports to cause the HBAs to log in again, and thus forward HBA information to the
switch.
HP StorageWorks 8/20q and SN6000 Fibre Channel Switch Enterprise Fabric Management Suite User Guide 95