On May 15, 2007, at 2:15 PM, Matthew Fredrickson wrote: > > On May 15, 2007, at 3:38 AM, sai jayram AKV wrote: > >> hi. >> >> There is a mistake in isup_send_message function of isup.c >> >> rl.sls is assigned sls_next(ss7), assuming there are 16 signaling >> links amd sls in incrementsd one after other. >> >> There will be a problem if the number of signaling links are less >> than 16. >> >> sls_next may be modified so that 16 is replaced by numlinks. > > I have seen many different possible ways of doing this. I have not > seen a good answer yet for how this works. It Q.763, it says in the > spec under section 1.1 (routing label) that the "SLS bits are set to > the four least significant bits of the CIC". Can you point to a > specification or document that can verify your recommendation? > > It is not exactly correct the way it is written right now. For ANSI > networks, it doesn't do SLS balancing properly across all possible > values, and for ITU, it maybe that it need be changed to follow what > the ITU recommendation says, instead of the cross ANSI/ITU mix I have > currently. For what it is worth, after doing a little bit of research, I updated it (for ITU SS7) to be in accordance with the specifications (using the least four significant bits of the CIC) until I hear something else. Matthew Fredrickson
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