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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Packet over SONet/SDH (POS) experience?
> From: [email protected] (Ran Atkinson) > To: [email protected], [email protected] > Cc: [email protected], [email protected] > On Oct 19 8:12, William Allen Simpson wrote: > % Has anyone (that has deployed) been having incident reports? > > There are known operational incidents where an adversary sent > an IP packet designed to set the SONET scrambling algorithm ["f(x)"] > to all zeros. This caused the SONET device to lose communications > syncronisation and the circuit to go down, requiring a manual reset. > Truly an ugly situation. > Please detail: - what dates? - which circuit paths? - which vendor equipment? - from whence we will derive, which vendor chipset? > I've known about this issue ever since the PPP/SONET spec was > published, but have withheld public comment until someone else > mentioned the issue on a public list. > Too bad you were not involved in the discussion 3-5 years ago.... > PS: I'm not on the PPP or PPPSDH lists, so if folks on those lists > want me to see any followups, those folks will need to Cc: me > directly. > > PPS: The followups list definitely will need trimming. Please > edit appropriately if you followup... > Ran, the original did not have those followups, and I'm kind of annoyed that you added them.... I really did _not_ need 4 copies, and I expect that the other NANOG folks will be less than enthused as well! [email protected] Key fingerprint = 17 40 5E 67 15 6F 31 26 DD 0D B9 9B 6A 15 2C 32
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