Alcatel-Lucent 7750 Configuration Manual page 307

Interface Configuration
The operational state of the entity is disabled as well as the operational state of any entities contained within.
The no form of this command administratively enables an entity.
Special Cases
card — The default state for a card is no shutdown.
interface group handler (IGH) — The default state for an IGH is shutdown.
mda — The default state for a mda is no shutdown.
lag — The default state for a Link Aggregation Group (LAG) is shutdown.
port — The default state for a port is shutdown.
path — The default state for a SONET/SDH path is shutdown.
7750 SR Interface Configuration Guide Page 307