Date: Sat, 29 Apr 2000 11:39:13 +0200 From: Alexander Strauss <strauss@astracom.net> To: freebsd-isdn@freebsd.org Subject: [Fwd: NetBSD RAW-IP Problem] Message-ID: <390AADC1.65F4D68E@astracom.net>
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Hi, in the meantime I've tried the same with a SyncPPP connection - same problem, ~ 70% packet loss when sending large packets...no chance to get a FTP transfer through. Playing with MTU sizes won't change anything on that behaviour... root@alex-i4b:/usr/src/i4b/driver:(15)# ping -s 10000 matahari PING matahari.mktg.tide.ti.com (137.167.205.70): 10000 data bytes 10008 bytes from 137.167.205.70: icmp_seq=0 ttl=255 time=2605.575 ms 10008 bytes from 137.167.205.70: icmp_seq=1 ttl=255 time=3092.091 ms 10008 bytes from 137.167.205.70: icmp_seq=2 ttl=255 time=3781.507 ms 10008 bytes from 137.167.205.70: icmp_seq=3 ttl=255 time=4272.504 ms 10008 bytes from 137.167.205.70: icmp_seq=4 ttl=255 time=4961.288 ms 10008 bytes from 137.167.205.70: icmp_seq=5 ttl=255 time=5453.076 ms 10008 bytes from 137.167.205.70: icmp_seq=6 ttl=255 time=6142.071 ms 10008 bytes from 137.167.205.70: icmp_seq=7 ttl=255 time=6633.131 ms 10008 bytes from 137.167.205.70: icmp_seq=9 ttl=255 time=7623.009 ms 10008 bytes from 137.167.205.70: icmp_seq=11 ttl=255 time=8420.784 ms 10008 bytes from 137.167.205.70: icmp_seq=13 ttl=255 time=9410.000 ms 10008 bytes from 137.167.205.70: icmp_seq=15 ttl=255 time=10399.712 ms ^C^C ----matahari.mktg.tide.ti.com PING Statistics---- 41 packets transmitted, 12 packets received, 70.7% packet loss round-trip min/avg/max/stddev = 2605.575/6066.229/10399.712/2506.544 ms This ping has been performed with a i4b <--> i4l raw IP connection, using SyncPPP is even bader than that. So my question: Is *anyone* out there who's got a *working* BSD <--> Linux ISDN connection? Please let me know... Thank you, Alex Alexander Strauss wrote: > > >On Fri, Apr 28, 2000 at 11:17:50AM +0200, Alexander Strauss wrote: > >> If I ping the remote system, it seems to work. Also an rlogin works the > >> first time, but at any point the rlogin sessions hangs and won't come > >> back. Same with FTP: > > > >try a ping wit a long packet size. I strongly suspect some MTU problem > >leading to lost packets... you might want to manually limit the route MTU > >or interface MTU to make it work. > > > >Regards, > > -is > > You're right - when pinging with a large packet size (>=7000) I see the > same behaviour as with the other applications. But also if I limit the > interface MTU on both systems to 500 (the lowest possible value), my > transfers are not going through... > > Any other ideas? > > Thanks, > Alex > > -- > best regards, > Alexander Strauss <strauss@astracom.net> -- best regards, Alexander Strauss <strauss@astracom.net> To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isdn" in the body of the message
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