For my Lan, I have created two Vlan; Vlan 10 = for Users and Vlan 20 = For Database Servers
there are 15 Lan computer/laptop and 5 SQL database server (Dell Server) connected through same 24 port cisco 2960 switch. Means, 15 + 5 port occupied.
I have applied access list on cisco switch to restrict communication between vlan 10 and vlan 20.
But My main purpose to create two Vlan is not for any kind of communication or restriction. My main Purpose is that Users traffic do not distrub or choke or affect the Database servers. then what will i need to do for that
is VLAN Concept is sufficient for my concern OR I will need to buy seperate Cisco Switch to connect 5 database servers OR Else. ???
Thanks for posting the configuration of the switch. It helps to make clear what is going on. And what it shows is that there is one port configured for a trunk connection between your 2960 and the core. Interface Gig0/1 carries all traffic from the 2960 to the core. the servers are sending their traffic that needs to get to the core over this interface. And the user traffic that needs to get to the core uses this interface as well. So it is possible (and perhaps likely) that traffic from servers attempting to use this interface is competing with traffic from users attempting to use this interface.
In my post I attempted to explain how you could avoid competition between user traffic and server traffic attempting to get to the core. But since my explanation was not clear, then let me try to explain it again. When you have one trunk port carrying traffic for both VLANs there is competition for access to that interface. So the solution is that you do not configure interface Gig0/1 as a trunk (and as member of a port channel) but you configure it as an access port in the server VLAN (which appears to be VLAN 20 if I understand your config correctly). And then you connect interface Gig0/2 from the 2960 to the core. In my previous post I suggested that you make this interface an access port for the user VLAN (which appears to be VLAN 10). But I see that this switch has both VLAN 10 and VLAN 13. You have not told us about VLAN 13 or what it is. But assuming that it needs to communicate with the core then I would suggest that interface Gig0/2 be configured as a trunk and that it carry traffic for VLANs 10 and 13. If you do this then the traffic from the user VLAN can not compete with the traffic from the server VLAN.