On Thu, 13 Jul 2000 mmm3@cornell.edu wrote:
This is one for the books, definitely.
Here's the setup:
Total control chassis Card Firmware Hardware One dual PRI card 3.1.5 4.0.0 12 digiquad modem cards 6.1.6 2.0.0 2 DSP cards 2.0.51 0.52.0 1 ARC 4.1.59 19.0.0 1 HiPerNMC 6.2.17 2.0 2 PSUs
We are having trouble downloading one particular file through this chassis and ONLY this chassis. I have checked and re-checked the settings and the ONLY thing different on this chassis is a 15-minute session limit and the Carrier Loss Detect Delay is set to 2 seconds. The file will consistently download to 69 or 72%, then the connection to the server dies; however, the modem connection remains viable. I am absolutely stumped. I've doubled the MTU size and swapped the ARC so far. Any clues? If you reply off-list, please cc ljc1@cornell.edu as I will be on vacation and checking email sporadically.
Are you having this problem appear both on the quad and the HiPerDSP? Increasing the MTU size is not a good thing. I would suggest that you set the MTU on the HiPer arc to 576 and do not change anything on the client side. This should fix the issue. Also if this problem is only on the Quad or the DSP alone then check your PPP settings on the ARC - you want to see if PPP on the modem is enabled or disabled. Disable the PPP on the modem and try your download again with mtu set to 576. -V
********************************************************* Michelle M. Mogil Network and Computing Systems 735 Rhodes Hall, Cornell University, Ithaca, NY 14853 vox: (607) 255-0516, fax: (607) 255-8521 email: mmm3@cornell.edu **********************************************
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