vlan 802.1q

Hi all, I posted this in networking but thought i would ask here as well. Just wondering why hardly any camera vendors support 802.1Q vlan tagging. Does any body know brands that do ? I am curious as to why the camera vendors don't implement it. Any comments feedback would be greatly...

Hi, Just wondering why hardly any camera vendors support vlan tagging. Does any body know brands that do ? I am curious as to why the camera vendors don't implement this. Any comments feedback would be greatly appreciated. Thanks