Dear Cisco Users !
I have a test about Spanning Tree Protocol.On the Switch 2950, I have three ports (1,2,3) in the same vlan( default)
The first connected to the router 1841.
The second connect to Convertor leaded to my NOC
The third used to backup and it connect to modem ADSL .
So I need to configure Fail Over System with STP. But I get the problem. When I unplug cable on the second port, Switch will active the third port , but I can not access Internet, and then I reboot , I can access the internet through the ADSL line.
Please give me some advices,
Thank you so much