Hi I am hoping someone can help me out with a couple of issues with a switch we are using. We have an SG 300-52 that is used for untagged inter vlan routing on a network of over 100 users with and I am wondering if the switch is appropriate for the task.
The log file keeps showing the following messages:
2147480831 2012-Jul-06 13:14:45 Warning %IPFFT-W-SFFTREDYELLOW: IP SFFT Table Overflow, aggregated (1)
2147480831 2012-Jul-06 13:14:45 Warning %IPFFT-W-SFFTREDYELLOW: IP SFFT Table Overflow
Even if I restart the switch the messages will start appearing after less than a day. Which while I know is a table overflow I don't know how to resolve the issue.
In terms of the switch performance on the new vlan (vlan10) that the SG300-52 is setup for there are only a few servers but there are no domain controllers on this vlan so the switch has to handle all routing for DNS, WINS etc. The tranfer speeds are excellent but when a user is using vlan10 within windows explorer frequently the screen will pause sometimes for upto a minute before displaying the network depending on how many drives are mapped to the original vlan (vlan1). This is a problem that I am more used to occurring because of dead shortcuts so I'm surprised it's happening accross the vlan, so I'm quite prepared to be told this is not a switch issue but it only occurs on vlan10.
Originally the idea was to have a new domain controller on the new vlan but due to issues with the new DC being Server 2008 and the discovery that production were still using some legacy pc's to login has meant the plean is on hold.
Is anyone able to shine some light on the issues I'm having?
The switch was configured using these guidelines:
Robert, this means the small business switches are good edge switches for large networks and good core switches for small networks. For this particular scenario, I would recommend your core switch should be a Catalyst switch then you can drop the SX300 switch in to an access layer position.
For smaller networks (less than 100 users), the SX300 switches do perform pretty well so it's not a bad switch, it is simply not designed for anything larger.