[SunHELP] Problem with a modem port hang

[Dick Heyman]

USR Sportster modem
RTS/CTS has been set - no control over the other modem - it's the alpha-paging
company - they actually suggest NO flow control - doesn't seem to matter.

I'll check on the DTE.
Thanks,
Dick

>>> "Fogg, James" <JFogg at vicinity.com> 01/02 8:29 AM >>>
I am not familiar with your particulars, but I would check the following...
1) make sure the modem is configured to disconnect on dropped or winked DTE.
2) make sure both ends are configured to use carrier detect.

There are also two ways to configure flow control. One uses RTS/CTS (more
common) and the other uses DTR/DSR (I thnk).

It would help if you mentioned what modem is being used.

~ -----Original Message-----
~ From: Dick Heyman [mailto:dheyman at fcgov.com]
~ Sent: Wednesday, January 02, 2002 10:16 AM
~ To: sunhelp at sunhelp.org
~ Subject: [SunHELP] Problem with a modem port hang
~
~
~ I am using kermit over port /dev/cua/b on an UltraSparc 5 for
~ Alphanumeric
~ paging.
~
~ The problem is that the port will often hang and I can't
~ recover without a
~ reboot.
~
~ Occasionally the port will hang and release when I power
~ cycle the modem but
~ not always.
~
~ The last entry in my modem log is always "NO CARRIER".  I
~ always start and
~ complete my scripts with a hangup.
~
~ Any and all help much appreciated.
~
~ Dick Heyman
~ Network Engineer
~ City of Fort Collins
~ 215 North Mason St
~ P.O. Box 580
~ Fort Collins CO, 80521
~ (970) 221-6283
~ dheyman at fcgov.com
~ _______________________________________________
~ SunHELP maillist  -  SunHELP at sunhelp.org
~ http://www.sunhelp.org/mailman/listinfo/sunhelp
~
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