VoVaN wrote: >I've been using this modem for quite a while without a single problem, but >now.... my provider has recently upgraded downstream from 3Mb to 6Mb and I >noticed some random delays with ping: > >64 bytes from pop.wxs.nl (195.121.6.53): icmp_seq=63 ttl=252 time=6.50 ms >64 bytes from pop.wxs.nl (195.121.6.53): icmp_seq=64 ttl=252 time=7.28 ms >64 bytes from pop.wxs.nl (195.121.6.53): icmp_seq=65 ttl=252 time=9.06 ms >64 bytes from pop.wxs.nl (195.121.6.53): icmp_seq=66 ttl=252 time=1031 ms >64 bytes from pop.wxs.nl (195.121.6.53): icmp_seq=67 ttl=252 time=32.6 ms >64 bytes from pop.wxs.nl (195.121.6.53): icmp_seq=68 ttl=252 time=7.39 ms >64 bytes from pop.wxs.nl (195.121.6.53): icmp_seq=69 ttl=252 time=7.13 ms > >So, once per 10-80 packets I'm getting realy long (~1000ms) delay just for a >_SINGLE_ packet, then everything is fine again and responce time stays in >between 7-11ms. This was never happening before upgrade. Do you have any clue >what could be wrong there? There's no relevant messages logged by kernel or >something else. >Just for the info: I tried another modem (ethernet), just to be sure that it >isn't provider's problem and the ping is fine. I'm using 2.6.14 kernel, but >with 2.6.13 I can see exactly the same behaviour. >BTW, I'm monitoring average ping times by mrtg, so there is a graph at >http://bsd.net.home/stats/ping/ping.html, so you can clearly see how it was >before (15-11-05 18:00) and after. > >Regards, >Vladimir. > >Liste de diffusion modem ALCATEL SpeedTouch USB >Pour se dйsinscrire : mailto:[EMAIL PROTECTED] > > > > Hi,
Just a shot but could it have something to with linespeed being 6Mb but xfer-rate still 3Mbps? KPN only has upgraded the linespeed but is still limiting the bandwidth at 3Mbps. I tried it myself and and I also got delays but not that extreem: 8ms regular and once in a while 50ms. fc1, 2.4.22, usb speedtch rev 0 kernel driver, pppd 2.4.4b1 Michiel Liste de diffusion modem ALCATEL SpeedTouch USB Pour se dйsinscrire : mailto:[EMAIL PROTECTED]
