[cisco-nas] AS5350 Connection Problems

Internet Coordinator ncinet at nemontel.net
Fri Sep 5 10:05:12 EDT 2003


We experienced this issue in March when we upgraded all 15 of our
5350s.  We didn't have time to worry about it at the time so we
downgraded back to 12.1-5.xm8 which also downgraded the firmware for the
nextport modems.  Now that we have time re upgraded all boxes to
12.3(1a) and added a modemcap

modemcap entry next:MSC=&FS0=0S29=6S21=3

This has corrected thing BUT we needed to put in an INIT String for GWT
v92, BCM v92 and PCTel v92 modems.  Normally correcting it with +ms=v90
or +ms=v90,0

Not sure if this will clear it up for you but this was what we did to
get updated past the IPv4 bug.

thanks

Greg


"Francisco (fxdomin2)" wrote:

> We're running into something similar, however, it's on
> AS5300's with 12.2-2.XB11
> Our network provider who "manages" these units says that
> it's due to the existence of several viruses (mblast and
> nachi) on the internet causing ICMP related issues.
> Apparently, the Cisco Advanced Network Services Engineers
> (ANS) is working on the issue for the last three weeks, but,
> they haven't found a workaround.
>
> If anyone has seen this or is experiencing this, have a fix,
> etc. please let us know (Dennis, have you seen this?).
>
> Currently we need to have our as5300's reloaded every 2
> hours to bring the unit back to a useable state (all 25 of
> them). If left too long before rebooting, no traffic will
> pass (so no telnet etc.), users get stuck, and we regularly
> get fast busy signals. From a financial standpoint, this is
> killing our business.
>
> -----Original Message-----
> From: cisco-nas-bounces at puck.nether.net
> [mailto:cisco-nas-bounces at puck.nether.net]On Behalf Of John
> McKinney
> Sent: Friday, September 5, 2003 12:53 AM
> To: cisco-nas at puck.nether.net
> Subject: [cisco-nas] AS5350 Connection Problems
>
>         We seem to have a spuratic problem with users connecting,
> but then
> not being able to send/receive any data. The call will start
> like normal,
> then after about 8K of data, sessions just stops sending or
> receiving
> anything. I experienced it myself Sunday afternoon from my
> dial-up
> connection. Since this is a production enviroment I am
> having trouble
> tracking the problem. Even pings from my dialup computer to
> our local
> severs will stop. I could ping the AS5300, but nothing on
> the ethernet
> side. I switched to my laptop and it did the same thing. I
> drove to the
> office and everything was fine. I drove home, the problem
> was gone. I have
> in the past told yours to reboot, that windows was causing
> the problem but
> this is not the case. I think rebooting is just buying time
> until the
> problem goes away. This seems to come and go, but lately I
> am
> hearing more and more complaints. Where do we go from here?
> Phone
> conditions seem normal, no excessive retrains or noise.
>
> 2 AS5350's, not sure if one or both are doing it. Both are
> less than 1
> year old.
>
> IOS 12.2-2.XB11
>
> One has beening running XB11 for several weeks, the other 2
> days. Before
> that we were using XB8. The problem was present before the
> upgrade.
>
> Any suggestions would be greatly appreciated.
>
> Thank You,
> John McKinney
>
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