安装Cisco Business 220 Series Switch后,局域网内的一台Redhat系统电脑输入mount命令,挂载另外一台Redhat系统电脑文件时,出现 'mount: mount to NFS server '192.168.2.1' failed: RPC Error: Program not registered'.更换其它旧的交换机后,不会出现此问题。再次换回Cisco Business 220 Series Switch后问题依旧。请问是否需要在Cisco Busin...