On Jun 21, 2007, at 8:17 AM, TCB wrote: > I have the a problem testing libss7 w ss7linktest . I receive SIO > from Telco and Send back SIOS , i this > this right , a quick check on ITU Q.781 - 1.4 shows me This is incorrect, based on your debug output. See below. > > PURPOSE: To check "Aligned ready" Timer T1 and "Proving period" > Timer T4 (Normal) > PRE-TEST CONDITIONS: Link out of service > EXPECTED SIGNAL UNIT SEQUENCE: > SP B > SP A > Link Link > <------------------------- 1?0 SIOS > 1?0 SIOS -------------------------> > : start > <------------------------- 1?0 SIO > 1?0 SIO -------------------------> > <------------------------- 1?0 SIN > 1?0 SIN -------------------------> > > T4 (Pn) > <------------------------- 1?0 FISU > T1 > <------------------------- 1?0 SIOS > > > root at ss7:~/libss7-trunk# ./ss7linktest 1 itu 27 1 > Starting link 1 > Link state change: IDLE -> NOTALIGNED > Len = 4 [ ff ff 01 00 ] > FSN: 127 FIB 1 > BSN: 127 BIB 1 > >[0] LSSU SIO > > Len = 2 [ ff ff ] > FSN: 127 FIB 1 > BSN: 127 BIB 1 > <[0] LSSU SIOS > > Link state change: NOTALIGNED -> NOTALIGNED > Len = 4 [ ff ff 01 00 ] > FSN: 127 FIB 1 > BSN: 127 BIB 1 > >[0] LSSU SIO Your interpretation of these messages is incorrect. > is what you send and < is what you receive. libss7 is sending SIO (to notify the other end to bring the link up) and receiving SIOS from the other end. It sounds like a problem with the other side. Maybe the link isn't turned up Matthew Fredrickson
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