Randon Network Dropout

[acibat0530]

Hi,

I have SG200 50/50 Port Switch and the devices that connect into it are servers and workstations

Few days and until we experience network dropouts and when take a look at the switch log it gives me this?

    2147483423   2011-Jul-22 16:34:53 Informational   %LINK-I-Up:  gi3, aggregated (1)       

    2147483424   2011-Jul-22 16:34:53 Warning   %STP-W-PORTSTATUS: gi3: STP status Forwarding, aggregated (1)       

    2147483425   2011-Jul-22 16:34:50 Warning   %LINK-W-Down:  gi3, aggregated (1)       

    2147483426   2011-Jul-22 16:34:37 Informational   %LINK-I-Up:  gi3       

    2147483427   2011-Jul-22 16:34:37 Warning   %STP-W-PORTSTATUS: gi3: STP status Forwarding       

    2147483428   2011-Jul-22 16:34:27 Warning   %LINK-W-Down:  gi3       

Device connected to gi3 is a Web Server

This is also happening on more ports ie 20-printer, 13-Cisco Wireless Access Point, 24 File Server etc

which I don't know what is going on. With my research, it said something about

spanning protocol. Is this possible to disabled?

The other cisco switch where desktop are also connected doesn't have this error.

My firmware is 1.1.0.73

Boot Version 1.0.0.1

Any ideas will highly be appreciated.

Thanks

AC

[maranellotech]

I have started seeing this problem as well on my SG200-50 recently. It seems to happen when the switch is under a more than normal load (transferring a large file, etc.). Usually a reboot of the switch makes the problem go away for a month or so but it keeps coming back and is getting annoying.

Sent from Cisco Technical Support iPhone App

[acibat0530]

Hi Derek,

My post was year old but to give you some idea, I disabled the STP if you are not using it really.

Now, I get these logs as well but only when a particular device was switch OFF & ON.

Also, rebooting the switch helps performance specially when it is running for quite a long time.

Hope this helps.

AC