Enable link trap on the port.
default snmp trap link-status
default snmp trap link-status port {slot/port[/sub-port][-slot/port[/sub-port]][,...]}
no snmp trap link-status
no snmp trap link-status port {slot/port[/sub-port][-slot/port[/sub-port]][,...]}
snmp trap link-status
snmp trap link-status enable
snmp trap link-status port {slot/port[/sub-port][-slot/port[/sub-port]][,...]}
snmp trap link-status port {slot/port[/sub-port][-slot/port[/sub-port]][,...]} enable
Identifies the slot and port in one of the following formats: a single slot and port (slot/port), a range of slots and ports (slot/port-slot/port), or a series of slots and ports (slot/port,slot/port,slot/port). If the platform supports channelization and the port is channelized, you must also specify the sub-port in the format slot/port/sub-port.
The default is enabled.
GigabitEthernet Interface Configuration