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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: PPP over SONET (RFC-1619)
> > RFC-1619 is a Proposed Standard, and may change based on the > implementation experience of the vendors as it goes to Draft Standard. > > The only problem discovered so far is that some PTT equipment vendors > did not implement the SONET Loss of State (LOS) test requirement of 2.3 > micro-seconds (119 unchanging zero/one bits at OC3), and instead > implemented 73-bits, the minimum from G.958 for a badly designed timing > recovery circuit. Many vendors are currently 'going around' Bellcore > by applying proprietary solutions to problems and convincing the RBOCs > that it doesn't matter if they are in long term partnerships. > > ISO -- pick a standard, any standard. > > This, in turn, may require an extra scrambling to be required. Not a > big hardware commitment, though, but a serious annoyance. > Interesting. If this happens, I can see lots of fun when trying to do intercarrier interconnects. Of course, they will first have to reconcile these issues with their current SONET infrastructures. Shikhar (Standard Disclaimer: the opinions expressed are strictly my own and are not those of Bellcore)
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