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FW: FW: (ASCEND) Pipeline 220, 130 CSU hangs...


-----Original Message-----
From:	Curt Iverson [SMTP:ccivers@uswest.com]
Sent:	Monday, August 24, 1998 10:01 AM
To:	Duane Jenson
Subject:	Re: FW: (ASCEND) Pipeline 220, 130 CSU hangs...

> -----Original Message-----
> From:	Tim Basher [SMTP:basher@alpha.ces.cwru.edu]
> Sent:	Saturday, August 22, 1998 8:32 PM
> To:	ascend-users@max.bungi.com
> Subject:	Re: (ASCEND) Pipeline 220, 130 CSU hangs...
>
> > We have a Pipeline 220 and we're running Frame-relay over a T1 with
> B8ZS,
> > ESF.  The link comes up fine, but after about 15 mins., the CSU
> seems to
> > hang, and no more incoming traffic.  The analyzer shows pings still
> going
> > out at this point, and coming back, but they never get back through
> the
> > router.
>
> What does the "WAN Stat" display show?  Are "Rx Pkt", "Tx Pkt", "CRC"
> increasing?  What does the "wanDisplay 16" diagnostic command show?
> Is the routing table (the termsrv "show ip route" command) still okay?

I believe the WAN Stat shows call disconnected??? and there are no more packets being TX or RX, or acknowledged by the router atleast, but you can see the packets( RIP's every 60 seconds from the ISP???) being received on the WG DA-30 from the ISP it is connected thru on one static route.  There are no CRC's what so ever.
> Assuming this is a T1 analyzer, does it show the LMI packets being
> exchanged?  Does the "Sessions" display the WAN session as up or down?

We were jack'd in at the NIU on the MONITOR Bantam jack's with the router's brought down to eliminate the Extended Dmarc. Yes, it would show LM being exchanged for about 15 minutes then the router will quit ack'ing the LM responses from the FR switch, then of course LM drops after 4 polls.  We have even tried shutting off LM polling on both the FR switch and the Pipeline, Reboot the Pipeline, then again you can see data passing, but after about 15 minutes the Pipeline goes to sleep again.  Then, If you ping the ISP from a workstation off of the E0 you can see the pings go out and come back but the router doesn't ack them and the pings on the workstation sez timed out.
> What version of software are you sing on the Pipeline 220?

We tried several different models of Pipelines (2)220's and (1)130 but they are reacted similar each running different Version's of Software.
I think Version's 5.1.4 and 6.1
> What type of Link Mgmt do you have configured?

It was setup for Annex-D but doesn't matter because even with no LM it still hangs.
The Ascend tech we talked to even had us try only Channels 2-20 (Not sure why) but that didn't react any different than before.  The Common trouble seems to be the integrated CSU on the Pipeline's.  Because when we put a different Vendor's External CSU and a different Vendors router on the T1 it came up and ran FINE for an hour.  We have sent the Capture files to our lab and also to Ascend to try and get a handle on this issue.


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