Hi,
On Tue, Mar 26, 2002 at 01:03:38PM -0500, Melmoth, Will wrote:
> Just found this thread while researching my own problems with DS3 and Cisco
> PA-T3 cards. I have a microwave radio provided DS3 between two buildings
> connected to a PA-T3 card in a 7206 router on one end and a PA-T3 in a
> Flex-wan module in a 6509 switch on the other side. I have had ongoing
> problems with the link dropping, carrier transitions, CRC errors, etc. But
> the radio statistics said it was running error free. There is very little
> useful configuration information for these PA-3T cards and Cisco TAC was no
> help. So I have been making configuration changes by trial and error to see
> what improves the situation. The point of all this is to let you know that I
> found setting both cards to "framing bypass" has greatly improved the
> interface error statistics.
Hmmm. This shouldn't actually improve error statistics, but it will
reduce error detection capabilities, and as such might lead to lower
error *counters*...
We had a "flakey" E3 recently that went up/down/up a couple of times per
day, only being "down" for a few seconds each time. The carrier found
nothing, and the problem went away when we enabled scrambling on the
line, as in:
interface s3/0
scramble
followed by a "clear int s3/0" (otherwise it won't change the hardware
settings). Dunno whether that applies to T3 as well...
gert
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Gert Doering - Munich, Germany gert@greenie.muc.de
fax: +49-89-35655025 gert.doering@physik.tu-muenchen.de
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