If the performance of the current system software does not meet requirements, you can update the system software package to enhance system performance.
There are two methods to obtain a system software package: remote download or local download. For details on how to obtain a system software package, refer to the configuration guide of the corresponding product.
During device operation, the system software may need to be modified due to system bugs or new function requirements. The traditional way is to upgrade the system software after powering off the device. This, however, interrupts services and affects QoS.
Loading a patch into the system software achieves system software upgrade without interrupting services on the device and improves QoS.