Dynamic Authorization is the official name for Change of Authorization(CoA). Cisco TAC personnel have said that it`s very common for them to receive customer calls stating that they are receiving many Dynamic Authorization Failed errors in the Live Log. Also that 99 percent of the time, the issue is a misconfiguration of the NAD.
Don`t approve buying different series router in company, because you can install IOS for 4400 routers on 4300 🙂 Ok, If it happend you should recover previous image for normal downloading. Let`s Ctrl+Break
New Year holidays it is a magic time when you can update/upgrade/install/remove anything in enterprise network. Business are giving you a chance to work and make your network more powerful 🙂
High CPU usage was occurring when the switch was upgraded from 15.0(2)SG2 to 15.2(2)E4. After exhaustive troubleshooting, it was found that the problem was significant with mac moving. After reviewing the STP instances for VLAN, nothing existed. It was later found that the following statements were configured in the switch all the time. no spanning-tree […]