Awesome thanks Lonnie. Some great options there.
Not at 1.4 yet (coming soon) so might try the iPoE option initially.
The PPPoE options look very interesting. Think I may do some fine tuning in my
1.4.4 release. Would be interesting to see if CAKE improves anything too.
Regards
Michael Knill
On 10/2/22, 12:57 am, "Lonnie Abelbeck" <li...@lonnie.abelbeck.com> wrote:
Hi Michael,
Nicely described issue.
1) Adjust lcp-echo-* settings (requiring AstLinux 1.4.1 or later)
By default the pppoe ppp peer options include:
--
lcp-echo-interval 20
lcp-echo-failure 3
--
Try adding a PPPOE_PPP_OPTIONS variable in your /mnt/kd/rc.conf.d/user.conf
file:
--
PPPOE_PPP_OPTIONS="lcp-echo-interval 5 lcp-echo-failure 10"
--
or also add lcp-echo-adaptive
--
PPPOE_PPP_OPTIONS="lcp-echo-interval 5 lcp-echo-failure 10
lcp-echo-adaptive"
--
Test and adjust values accordingly.
2) Adjust QoS
Possibly (AstLinux 1.4.4 or later) CAKE support in the traffic shaper would
help, but no evidence it would.
3) Changing the service to IPoE
I have always thought to avoid PPPoE if possible, so if IPoE is an
available choice, that may be a good idea.
Lonnie
> On Feb 8, 2022, at 10:49 PM, Michael Knill
<michael.kn...@ipcsolutions.com.au> wrote:
>
> Hi Group
>
> I have a site that for years intermittently has periods where it loses
PPPoE connectivity on a regular basis. After further investigation by one of my
techs, it appears that when this is happening there is significant upstream
congestion on the service due to a Veeam backup in progress.
> Note that I have set traffic shaping and the voice is not affected
however it is when the PPPoE drops the connection e.g.
> Feb 9 12:40:33 3060-ETS_Ref-CM1 daemon.info pppd[362]: No response to 3
echo-requests
>
> We have always blamed the access provider but have not been able to
pinpoint the issue. I'm now thinking that possibly during this high congestion,
LCP Echo Request/Reply are being delayed and/or dropped meaning that Astlinux
thinks connectivity is lost and it resets the connection.
>
> So my questions are:
> • Is this possible?
> • If so, how can I fix it? Something in QoS? Can I change the PPPoE
parameters for LCP echos maybe?
> • Would changing the service to IPoE fix the problem e.g. only DHCP
then?
>
> Thanks all.
> Regards
>
> Michael Knill
> Managing Director
>
> D: +61 2 6189 1360
> P: +61 2 6140 4656
> E: michael.kn...@ipcsolutions.com.au
> W: ipcsolutions.com.au
>
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