Red Hat Bugzilla – Bug 15628
Terrible Performance on PPP Connections
Last modified: 2008-05-01 11:37:57 EDT
I get terrible dialup ppp performance on a pinstrip toshiba satellite
4080xcdt laptop with a xircom eth/56k modem combo pcmcia card. Same works
fine under windows. Using both Att business and uunet/msn as providers and
also trying to switch of all compression on the line i get declining ppp
performance, actually IP Performance after ppp finished on the dialup
line. I get some packets through the first few seconds then go down to 100
bytes/second, then to nearly zero packets. Connect is at 31200 over an
ISDN phone system that convers the modem signals (a quite usual setup).
I get normal good performance when using the ethernet interface on the
pcmcia combo card for network connections.
I had to diable vj compression to stop a continuous flow of ConfReq / Rej
packets, but that didnt help the main problem.
On Alan Cox Suggestion I tried hdparm -u1 but that didnt help either.
Please verify this with a newer version of Red Hat Enterprise Linux or Fedora
Core and reopen it against the new version if it still occurs.
Closing as "not a bug" for now.