RE: (ASCEND) GURUS: max 4000 ISDN connection STALLING! help

[Adam Neat <adamneat@ipax.com.au>]

On Friday, March 26, 1999 6:39 AM, Peter Lalor [SMTP:plalor@infoasis.com] 
wrote:
> >From: Adam Neat <adamneat@ipax.com.au>
> >
> >we have a client using a max 4048 connecting to us (6.1.4+) over 256K 
ISDN.
>
> Presumably as four DS0s on an E1...
>
> >When the link is running hot at 80 - 100% utilisation, the link seems to
> >stall. The Maxes (we have one on our end too) still keep the line up (4 
B
> >channels) but there is no traffic. We cant transfer any data between the
> >two nodes.
>
> I've seen saturated ISDN lines cause extremely slow throughput and loss. 
I
> imagine that the same occurs with any link. You can only stuff so much
> through a pipe of a given size.
>
> >Its only during their peak times (the client is an ISP) with high
> >utilisation.
> >
> >They are really having a hard time with it and their customers are 
getting
> >tired of hte problem.
>
> One could say they need a bigger pipe...
>
> If I discovered that my ISP was running a saturated 256k ISDN line...
> they'd be my ISP no more.
>
> >We've had the Telco's out checking the lines and all sorts of things.
> >
> >On our side, we have about 30 other connections on this particular 
router
> >on our end, and they are all running with no probs.
>
> Try toggling LQM. Be sure the settings are the same at each end.
>


Thanks Peter.

Yes, they connect to us over 4 B's from their E1.

The link actually stays up (according do the two maxes at either side). 
But, the layer 3, it almost seems, dies. No 'traffic' goes over the link.

Ada


------------------------------------------------
                  IPAX Systems
              Melbourne, Australia
            National Systems Manager
            Ops Tel:   1800 894 894
            Ops Fax:  03 - 9801-8533
        Web Site http://www.ipax.com.au
------------------------------------------------


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