To: Ron McKinnon who wrote (3770 ) 3/7/1998 10:53:00 AM From: Moe Damghani Read Replies (3) | Respond to of 4429
From Yahoo thread.... An associate received the following email update from UBS(?) securities: "Wall Street Tech" is the email newsletter on Telecom Equipment, Data Networking, Telecom Software and Internet Technology by Nikos Theodosopoulos, Scott Heritage, Mike Agarwala and Anton Wahlman at UBS Securities LLC. For comments or to unsubscribe to the list, please send an email to anton.wahlman@ubs.com or call 212-821-3675. An excel model is enclosed. Nikos Theodosopoulos 212-821-6951 nikos.theodosopoulos@ubs.com Scott Heritage 212-821-6828 scott.heritage@ubs.com Mike Agarwala 212-821-3192 michael.agarwala@ubs.com Anton Wahlman 212-821-3675 anton.wahlman@ubs.com ______________________________________________________________________ Our research indicates that the recent SS7 failure was in fact exacerbated by a software glitch in the DSC STP. It appears that the DSC STP basically shut-down due to the generation of higher than normal network management messages within the STP. DSC apparently has identified this software glitch and has developed a software patch to fix the problem. This would be the second software problem that DSC STPs have experienced within this customer's network since October of 1997. The good news for DSC is that it appears they have a software fix. The bad news is that the company is at risk of losing some credibility with their STP software quality control in the industry in the near to intermediate term. We do not know how, if any, this event will impact DSC's STP business in the US given the real time nature of these events. Highlights: As a follow up to yesterday's note, our research has further indicated that a software glitch in the DSC STP exacerbated the length of the SS7 network failure that was originally caused by a transmission error in the network. We believe the DSC STP shut down after generating a higher than normal network management messages in response to the transmission error in the network. While the creation of these messages is normal, the shutdown of the STP is not. We believe DSC has determined a software patch for this fix and will probably discuss this patch with customers in a timely manner. The good news for DSC is that a fix appears to be known. The bad news for DSC, however, is that this would be the second software issue within this customer's SS7 network since October of 1997. This may cause a short to intermediate term credibility issue for DSC's STP software quality control. Given that these events are occuring in real time, we do not have any sense if these recent issues will impact DSC's STP business in the short to intermediate term. These issues, however, could only be neutral at best. UBS Securities LLC makes a market in this security. ÿ