Hard Function Change is referred to as Function Change (FCH) and is used for installing, removing and upgrading software blocks in the AP. It is performed on the passive node and is started with command fchstart (see Figure 8-2). The operator are prompted to perform the appropriate changes during this procedure.
主要是爱立信交换机AP系统软件和硬件升级时候使用的
Soft Function Change (SFC) allows the operator to edit parameters and configuration files for applications in run-time without a fail-over or reboot.
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