tlsFdbPortId 1.3.6.1.4.1.6527.3.1.2.4.2.4.1.5

When the value of tlsFdbLocale is 'sap', this object, along with tlsFdbEncapValue, specifies the SAP associated with the MAC address defined by tlsFdbMacAddr. This object is otherwise insignificant and should contain a value of 0.