The address of the device to be pinged.
If the value of the corresponding instance of
fcPingAddressType object is 'wwn', then this
object will contain an 8 octet long WWN.
If the value of the corresponding instance of
fcPingAddressType object is 'fcid', then this
object will contain a 3 octet long FCID.
This object MUST be set to a valid value before
or concurrently with setting the corresponding
instance of fcPingRowStatus to 'active'.