Whether the firewall needs to be restarted during patch upgrade

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The hot patch does not require the device be restarted, but the cold patch does require.

Other related questions:
Upgrading the firewall patch
Delete the patch of the old version, load the patch of the new version, and activate it. The hot patch does not require the device be restarted. For operation details, see the relevant patch release notes and upgrade guide.

Do CE series switches need to be restarted after patches are installed
No. For problems that have occurred on a switch or card, refer to precautions in release notes to determine whether the switch or card needs to be restarted.

Do I need to upgrade the data.bin file independently when upgrading the U1900?
If the U1900 is upgraded to a version earlier than V200R003C20, you need to upgrade the data.bin file independently. If the U1900 is upgraded to a version later than V200R003C20 using the LMT, you do not need to upgrade the data.bin file because the LMT can upgrade the data automatically.

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