C2951 Software (C2951-UNIVERSALK9-M), Version 15.2(4)M3,现在已经连续两周死机,端口灯全灭!重新加电后,在 log中有“%IFMGR-7-NO_IFINDEX_FILE: Unable to open nvram:/ifIndex-table No such file or directory ”的提示!输入命令:dir nvram:ifindex-talbe时,提示"%Error opening nvram:/ifindex-table ...