I need to buy an 1 Gbps Hub. Can anyone suggest a Good Branded Hubs...
Sounds like a SPAN will do.
Local SPAN, RSPAN, and ERSPAN sessions allow you to monitor traffic on one or more ports, or one or more VLANs, and send the monitored traffic to one or more destination ports. With Release 12.2(18)SXD and later releases, you can configure per-VLAN filtering on destination trunk ports.
Here are more details in SPAN and how to configure it: