【原创】
3850现在使用的比较多,也是现在主推的1U 三层汇聚核心交换机(小心网络),设备性能也是非常不错的,很多时候我们会出于某些必要的或者优化的原因升级IOS ,比如做堆叠,比如解决bug等问题,升级IOS 一般都是通过tftp来升级,但是现在可以通过U盘来升级,更快且更方便,但是U盘有什么需要注意的呢? 之前就有几个朋友升级使用U盘不成功,我这里找了个资料分享大家:
The USB Type A port provides access to external USB flash devices, also known as thumb drives or USB keys. The port supports Cisco USB flash drives with capacities from 128 MB to 8 GB (USB devices with port densities of 128 MB, 256 MB, 1 GB, 4 GB, 8 GB are supported). You can use standard Cisco IOS command- line interface (CLI) commands to read, write, erase, and copy to or from the flash device. You can also configure the switch to boot from the USB flash drive.
使用FAT32格式,最大支持8G,记得不要用其他格式哦,否则识别不出来或者文件读取不了
图片参考,圈圈的是USB console