To ensure that you have a channel-capable MDA, verify that the MDA-type you are configuring by entering a show mda slot-id command.
The MDAs shown in the MDA Provisioned column in the following output are a 12-port channelized DS3 MDA (m12-ds3) on card 1, MDA slot 1, and a 1-port channelized OC12-SFP MDA (m1-choc12-sfp) on card 1, MDA slot 2.
A:ALA-A# show mda 1
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MDA 1/1
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Slot Mda Provisioned Equipped Admin Operational
Mda-type Mda-type State State
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1 1 m12-ds3 m12-ds3 up provisioned
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ALA-A# show mda 2
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MDA 1/2
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Slot Mda Provisioned Equipped Admin Operational
Mda-type Mda-type State State
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1 2 m1-choc12-sfp m1-choc12-sfp up provisioned
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A:ALA-A#