The port type:
generalPurposeStatic - statically configured (always on) port,
generalPurposeDynamic - dynamic port, which could be both
configured with different maximum number
of interfaces and unconfigured,
securityStatic - static port equipped with encryption
(IPSEC) hardware.
securityDynamic - dynamic port with encryption (IPSEC)
hardware, which could be both
configured with different maximum number
of interfaces and unconfigured.