This object is applicable for 'mplsLSP' and 'mplsPw' service types. When fsElpsPgConfigServiceType is 'mplsLSP' : - This object should be configured with the object identifier of the row in the MPLS tunnel table corresponding to the protection instance of the working LSP (ie. protection LSP). - In case of co-routed MPLS LSP, this object indicates the co-routed (forward and reverse) path of the protection LSP. In case of associated MPLS LSP, this object indicates the forward path of the protection LSP. When fsElpsPgConfigServiceType is 'mplsPw' : - This object should be configured with the object identifier of the row in the MPLS Pseudo wire table corresponding to the protection instance of the working PW (ie. protection PW). This object is applicable only when the fsElpsPgConfigType object is configured as 'individual' type. When the fsElpsPgConfigType object is configured as 'list', this object will return a value of '0' and any attempt to configure this object to any value will throw an error.