Dot1q and 6248 Interconnects Connectivity

Hello,
Is dot1q supported on the 6248 Interconnects? We have a few 3750's and we have FC connected from the 3750's to the interconnects with the following configuration:
Int gx/x/x
Switchport mode trunk
Switchport trunk encap dot1q
Switchport trunk allowed vlan 100,105,110,120,130,140,150
No cdp enable
Int gx/x/x
Switchport mode trunk
Switchport trunk encap dot1q
Switchport trunk allowed vlan 100,105,110,120,130,140,150
No cdp enable
Is this type of connection supported? If so, can someone point me to some documentation.....
Thanks

Ok so maybe an SFP issue....
Ethernet1/31
    transceiver is present
    type is Unknown Type-(unknown)
    name is CISCO-FINISAR
    part number is FTLF8528P2BCV-CS
    revision is D
    serial number is FNS154703MG
    nominal bitrate is 8500 MBit/sec
    Link length supported for 50/125um fiber is 50 m
    Link length supported for 50/125um fiber is 150 m
    Link length supported for 62.5/125um fiber is 20 m
    cisco id is --
    cisco extended id number is 4
Ethernet1/32
    transceiver is present
    type is Unknown Type-(unknown)
    name is FINISAR CORP.
    part number is FTLF8524P2BNV
    revision is A
    serial number is U9K0XD6
    nominal bitrate is 4200 MBit/sec
    Link length supported for 50/125um fiber is 150 m
    Link length supported for 62.5/125um fiber is 70 m
    cisco id is --
    cisco extended id number is 4

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Dot1q and 6248 Interconnects Connectivity

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