Firmware Upgrade with Minimal Traffic Loss

When updating firmware on a device, you typically begin by putting the device into maintenance mode so that traffic is diverted away from the device onto alternate paths. After performing the update, reboot the device, activate the new firmware, and take the device out of maintenance mode.

Alternatively, if it is not necessary to divert traffic away from the device, you can leave the device in active mode while updating the firmware. This enables the firmware to download faster.