TransACT pppoe dropouts

Andrew Bartlett abartlet at samba.org
Thu Oct 17 21:07:25 EST 2002


Rasjid Wilcox wrote:
> 
> On occasions my pppoe connection to Webone seems to become very unstable.
> 
> I'm currently getting a drop-out every hour or so (sometimes every 10 minutes
> or so).  I have previously have had connections up for over a week, and I
> have not changed any configs here that I can think of.
> 
> Is anyone else experiencing this?  If not (ie, it is just me), then what is
> the best way of debugging this kind of stuff.  I'd like to actually know
> something before complaining to Webone, as I currently have no idea if it is
> my end or theirs.

This looks like it's at your end, but Webone can usually tell you quite
useful details from their logs.

> /var/log/messages simply says (for example):
> Oct 17 10:16:47 kenobi pppd[2880]: No response to 2 echo-requests
> Oct 17 10:16:47 kenobi pppd[2880]: Serial link appears to be disconnected.
> Oct 17 10:16:47 kenobi pppd[2880]: Connection terminated.
> Oct 17 10:16:47 kenobi pppd[2880]: Connect time 5.0 minutes.
> Oct 17 10:16:47 kenobi pppd[2880]: Sent 12461 bytes, received 11687 bytes.
> Oct 17 10:16:47 kenobi pppd[2880]: Exit.
> 
> which is not particularly helpful.
> 
> My pppoe connection goes out over eth1, and from ifconfig:
> eth1      Link encap:Ethernet  HWaddr 00:60:67:3E:13:CC
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:22227 errors:0 dropped:55 overruns:0 frame:67
>           TX packets:17001 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:2 txqueuelen:100
>           Interrupt:12 Base address:0xa000
> 
> I note there are a number of dropped RX packets.  However, I have not idea if
> this is normal for a pppoe interface or not.  There are no dropped packets on
> the ppp0 link itself.

The dropped packets could certinaly indicate a problem - that's packets
between your ethernet card, and the xDSL modem.

Might be worth checking the cabling.

Andrew Bartlett

-- 
Andrew Bartlett                                 abartlet at pcug.org.au
Manager, Authentication Subsystems, Samba Team  abartlet at samba.org
Student Network Administrator, Hawker College   abartlet at hawkerc.net
http://samba.org     http://build.samba.org     http://hawkerc.net



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