Description: The module type of the port connector. This object refers to the hardware implementation of the port. It will be 'embedded' if the hardware equivalent to Gigabit interface card ( GBIC ) is part of the line card and is unremovable. It will be 'glm' if its a gigabit link module ( GLM ). A GLM has a different form factor than GBIC. GLM is not supported by our switch. It will be 'gbicWithSerialID' if the GBIC serial id can be read, else it will be 'gbicWithoutSerialID'. It will be 'sfpWithSerialID', if the small form factor ( SFP ) pluggable GBICs serial id can be read, else it will be 'sfpWithoutSerialID'. Since this is a characteristic of a physical port, this object is not applicable for Port Channel ports, i.e., the value is instantiated but its value is irrelevant.