Has anyone come accross this error message before

I am running 10.2.0.3 oracle database

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tnsping IBI

TNS Ping Utility for HPUX: Version 10.2.0.2.0 - Production on 10-OCT-2006 17:05:27

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Message 3511 not found; No message file for product=network, facility=TNSMessage 3512 not found; No message file for product=network
, facility=TNSAttempting to contact (DESCRIPTION = (SDU = 32768) (TDU = 32768) (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP) (HOST = i
eux1) (PORT = 1527))) (CONNECT_DATA = (SID = IBI) (GLOBAL_DATA = IBI)))
Message 3509 not found; No message file for product=network, facility=TNS