I believe that you can have a mixed CTN where one CEC doesn't have STP, but in that case the external time source must be the 9037 and I'm pretty sure that at least one of the CECs must be both STP and 9037 capable. I don't know what the implications are from converting from a pure STP environment back to a mixed environment, but it seems like when we did the conversion to STP there was some sort of fall-back provision.
Of course if you've been STP-only for some time there may be caveats that makes building a mixed environment unpalatable. Like I said, I don't remember the details, but there are a couple of redbooks out there on STP conversion and failure recovery scenarios. I would hope you could find the answer in one of those. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
