Ascend Archive
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Re: (ASCEND) Random momentary routing failures
this is probably not what is happening but check to make sure that it isn't.
make sure that pools only is set to yes. If someone dials in and decides to
grab the IP of your default gateway or your ethernet interface, you will be
screwed. that won't explain the frame relay profiles switching but its worth
a shot to begin with.
Twice in one day i lost the ethernet interface of a max at a remote pop.
there were no errors or dropped calls but the message log did show dial in
attempts during the outage so setting pools only = yes stopped that from
re-occuring.
try to issolate exactly what is in common with the things that are going
down. things like "is your external CSU/DSU connected to the same UPS as the
hub?"
I might just be writing crap but i am interested in knowing how you resolve
this issue. it may help me in diagnosing a similar problem in the future.
Leon McCalla
-----Original Message-----
>The Max has a PRI and a Frame line with two DLCIs. On the local Ethernet is
>a machine that queries it via SNMP every minute for traffic graphing and to
>make sure it's responding. If it doesn't respond, I get paged.
>
>Occasionally, I get paged that it's down, along with everything beyond it
>and some devices on the local Ethernet (presumably those that happen to get
>queried while the Max is acting up). A minute later, on the monitoring
>device's next query, everything comes back up.
>
>The Max always says it's been up for a while, so it didn't reset. There's
>nothing in the Fatal Error log and Syslog shows nothing out of the
ordinary.
>
>So it looks like the monitoring system lost it's mind, right?
>
>Right, except that usually one or both of the two Frame profiles
>simultaneously move to different interfaces.
>
>So it looks like the Frame line went down, twice, right? Right, except why
>did the Max stop responding to SNMP queries both times?
>
>Also, even local devices on the Ethernet are reported as down at the time,
>which looks like the Ethernet is flaky. Except the Frame profiles move
>around! Other profiles mey too, but I haven't tracked them so far.
>
>I've been back and forth with Support on this, but so far I don't think
>anyone is getting the picture.
>
>Is anyone else seeing anything like this?
>
>Peter Lalor
>Infoasis
>plalor@infoasis.com
>http://www.infoasis.com/
>415-459-7991 x102
>415-459-7992 fax
>
>
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