文档介绍：赫思曼交换机Firmware 升级说明
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Software Update
Software Update
A software update replaces the installed operating pletely by the new software release.
It is possible to upgrade to a new software version as well as to downgrade to an older software version.
If a stored configuration exists, it will only be preserved by a software upgrade. When performing a software downgrade, its contents may be pletely or partially.
If the downgrade to an older software version results in error messages and repeated device reboots, then delete the configuration by entering the System Monitor 1 and applying its menu "Erase main configuration file", please. If you use an ACA, you have to delete the configuration file "*.cfg" on the ACA manually. Alternatively, you can boot without the ACA.
CAUTION
Prior to a software update, disconnect all redundant connections.
When updating, please consider that an unsaved configuration will be lost and the default values will e active.
Please be patient while updating, the update process needs some minutes plete.
On all L2E variants there is no backup image. Make sure that the update has ended essfully before restarting the switch.
After a esful update, the switch can be restarted.
Check the redundancy configuration again before you reconnect all redundant connections.
three options for loading the software
Update over TFTP
Update over ACA 21-USB
Update over HTTP
保存设置
赫思曼交换机升级后,没有保存到 Flash 中的设置会被丢弃,因此在升级交换机前应该将交换机 RAM 中的设置保存到 Flash 中。
通常对赫思曼交换机所做的设置——也就是按Set按钮后生效的设置——都是保存在交换机 RAM 中的,一旦交换机重启,这些设置都将丢失;必须把交换机的设置保存到交换机的 Flash中,才能保证交换机重启后有效数据不会丢失。
保存设置的方法是:进入Basics -> Load/Save 页面,选中 Save 下的Local项,然后点击 Save configuration按钮。
Software Updates
如果交换机升级后的的软件版本高于老的软件版本,则保存在交换机 Flalsh 中的设置不会丢失。
警告:
交换机升级过程中严禁断电。
交换机升级完成后建议通过软件方式重启交换机,新的软件才生效。
不建议采用断电方式重启交换机。
在升级时请选择与交换机固件版本相匹配的软件包进行升级。
如交换机为MS 20 – 0800XXXEHC,;
交换机为MS 20 – 0800XXXPHC,。
其中E代表Entanced,说明交换机的固件版本为增强版本;
P代表Professional,说明交换机的固件版本为专业版