I've got two Dell 5424 switches. On each switch, I have three VLANs: 1, 103, and 215. For reasons I won't go into now, I need to uplink both switches via their 103 and their 215 VLANs. The uplinks are untagged, not sharing any VLANs. That is port 1 on the first switch is on VLAN 103 only and that port 1 links to port 1 on the second switch, which is also only on VLAN 103. Same for the 215 uplink--one port to one port and each port only on VLAN 215.  When I do this, however, spanning tree kicks in and blocks one of the uplinks, so either VLAN 103 traffic will traverse its link or VLAN 215 traffic will traverse its link, but not both. I've been looking into MSTP to get around this problem, but I don't know if it will actually help. So, that is my question: Does MSTP allow two switches to have multiple uplinks between them each of which handles separate VLAN traffic without any of the uplinks being blocked?

Thanks.