Trunking with 7206, 3550 & 2950 Hopefully easy to anwser.

We are taking out a T1 and putting in fiber between sites. need help configuring fiber connection, i am a little new with this so any help will be appreciated.
Below is a description of the layout.

Router- 7200
Switch-3550 fiber switch
Switch-2950

The 7200 and 3550 are in one location (DO ?district office)

The 2950 is located at Hidalgo (MH) vlan ID 10 (just changed to this vlan)

7200 has gig 0/0 with sub interfaces
Gig 0/0.10 is the subinterface with the gateway address for the 2950 at MH
Using dot1q

3550 gig 0/6 connection to 2950 gig 0/2

3550 gig 0/10 connected to 7200 gig Ethernet 0/0.1 encap dot1q 10

Link light on 3550 interface 6 has a green light.
No link light on 2950 at MH

If any thing is needed to help solve this, please let me know.

Thank you,

Nic