I purchased a netgear gs108 (supports 1000mbps) switch to use the second nic card of a backup server and 5 other servers to speed up backups. Our main network switch only supports 100 mbps. I thought that by using the second nic card of each server and connecting it to the netgear gs108, the backup would be faster. The backup is faster but the browser list eventually shows no devices when viewed from my network places, entire network, etc. Is there a way I can isolate the second nic card of each server connected to the netgear switch so that other servers in the domain will not try to access it?