We moved our data center from on place to another .The network cabinet includes " HP Blade System C7000 enclosure". we have two vlans , one of them is DMZ. In the old place , the HP Blade was connected to two Cisco switches ,on one of them DMZ port was configered and on the another Cisco switch non-DMZ port was configured .Now our " HP Blade System C7000 enclosure" use one CISCO switch and the DMZ and non-DMZ ports are configured on the same CISCO switch and when we restart any server from any vlan ,the server will not be able to connect to the network although all of the servers have static IPs.
and after logon to the server , a message appears telling us there is a conflict with the mac address of the gateway. the same mac address conflicts when restarting any server from any vlan.