>From: Mikko Lahti <makko at cygate.fi> > >Our customer has a problem with Max20's crashing frequently. Does someone >have experience of similar problems before? Or, can someone give >advice how to find out what makes the boxes to crash? IME, the following makes the DSL Max 20/DSL Terminator 100 unstable: 1. Flapping profiles (cause crashes). 2. RADIUS Authentication (various problems, including crashes). 3. OSPF (can cause Ethernet to go deaf). 4. Physical disconnect of DS-3 (fixed in 8.0.3). 5. Turning them on. ;-) >They have some dozens of Max20's, equipped with either one or two SDSL-16 >cards. Most of the Max20's crash frequently. After a crash, a power reset is >needed to get the box up and running again. Some of the boxes crash very >frequently, up to 4 or 5 times a day. The software level is 7.10.6. They almost always come up again after a crash, IME. Only once or twice I've seen routing be flaky and I had to reset again. Have you tried fsave, nvramclear? >Things that seem to affect the probability to crash: >- - Number of SDSL cards in the box. > Boxes with two cards crash more frequently. > However, boxes with only one SDSL card crash also, > but not so frequently. >- - Number of lines used on those cards. > More lines in use => more probable to crash. We only use one with a single SDSL card. It is totally stable, running 8.0.3. The rest use T1 and/or ATM DS-3. >The Max20's are configured to: >- - PPP >- - RADIUS authentication >- - customer subnets are parts of C-class networks Try migrating a single box to local profiles (you can still use RADIUS for accounting). Does it get better? >In the beginning, only static routes were used. Later, RIP2 has been >used. This change seemed to have no effect on the crashes. RIP is not a problem. >Syslog does not give any information about the crashes. The boxes die >without giving any syslog messages. Also, there's no information >coming to a RADIUS server at the time of a crash. Is there a way to >get more information, what is happening in a Max20 at the moment of >a crash? What does the fatal error log show? Diagnostics>'fatal' >The customer has tried 8.0.3 software, but it had even more problems. Such as? It's better than all previous releases for me. -- Peter Lalor Infoasis plalor at infoasis.com http://www.infoasis.com/ "Where's my burrito?" -- Homer ++ Ascend Users Mailing List ++ To unsubscribe: send unsubscribe to ascend-users-request at bungi.com To get FAQ'd: <http://www.nealis.net/ascend/faq>