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3-6
C
3: C
E
R
M
HAPTER
ONFIGURING THE
DGE
OUTER
ODULE
Carrier NVRAM Settings
The ONcore carrier can store configuration settings in its NVRAM
(non-volatile random access memory), which it can use when powering on
in either a managed or unmanaged hub. Two NVRAM DIP switches control
whether or not the carrier uses NVRAM settings. For information on setting
the NVRAM DIP switches, refer to Enabling or Disabling NVRAM
Configuration on page 2-10.
When the ONcore carrier ships from the factory, the NVRAM does not
contain any configuration settings.
The carrier stores configuration settings in NVRAM when either of the
following occurs:
You use a DMM configuration command or an SNMP manager to change a
carrier configuration setting. For example, if you use the SET PORT
NETWORK command to change a carrier port network assignment, the
carrier stores the new network assignment in its NVRAM.
The carrier stores the new setting as soon as you issue the command. The
SAVE command does not affect the contents of NVRAM.
The DMM sends configuration settings to the carrier during a hot swap. For
a definition of hot swap, refer to Hot Swapping an ONcore Module on
page 3-7.
Carrier DIP Switch Settings
The carrier contains a DIP switch that you can use to configure network
assignments. For more information on DIP switch settings, refer to
Configuring the ONcore Carrier DIP Switches on page 2-9.
Carrier Default Settings
In some cases, the carrier uses default configuration settings contained in its
software. The default network assignment for the ONcore carrier is Isolate_1.
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