新买的思科c9200+4端口1/10g模块。通过2条光纤对接2台c9332交换机。做3层Port-channel。C9200上显示对端lacp无法启动。并且C9200通过IP直连C9332端口也不通。换了h3c 5560没问题。这思科的c9200难道有软件限制？

I had a problem with the upgrade of super engine 2T IOS  yesterday. I was downgraded from IOS 15 SY7 to IOS 15 SY2. When the 15.0 SY2 software is imported to BootDisk, it is also set to start from 15 SY2. Reload switch, the following error occurs. b...