optimal pppoe options?

[Turgut Kalfaoglu]

Hi. I noticed that my pppoe (for VDSL2) runs with these options:

noauth
refuse-eap
user 'xxxxxxxxxxxx'
password 'xxxxxxxxxxxx'
nomppe nomppc
plugin rp-pppoe.so nic-eth0
mru 1452
mtu 1452
persist
holdoff 10
maxfail 0
ipcp-accept-remote ipcp-accept-local noipdefault
ktune
default-asyncmap nopcomp noaccomp
novj nobsdcomp nodeflate
lcp-echo-interval 6
lcp-echo-failure 10
lcp-echo-adaptive
unit 0
linkname wan0
+ipv6

I was wondering if I would get better performance if I enable any of these compression options?

PS: I noticed that the novj nobsdcomp nodeflate line is hard-coded into Merlin's pppd.c source code..
Strange.. I wonder why they would disable compression.. For me, every bit of bandwidth helps.

Many thanks, -turgut

 

[RAH-66]

pppoe mtu/mru 1492

 

[Turgut Kalfaoglu]

pppoe mtu/mru 1492

Googling I found that the smaller mtu is actually better because it fits without padding into atm frames

 

[RAH-66]

In general, this setting is controlled by the ISP (the default for PPPoE - 1492). If you do less, then the rest will be filled with the next frame, respectively, it will be divided into different parts and increase the load on the processor.

 

[heysoundude]

I was wondering if I would get better performance if I enable any of these compression options?

PS: I noticed that the novj nobsdcomp nodeflate line is hard-coded into Merlin's pppd.c source code..
Strange.. I wonder why they would disable compression.. For me, every bit of bandwidth helps.

Many thanks, -turgut

data compression/expansion takes processor cycles/time and impacts latency...both no-win conditions.
if you need to put more through the pipe, get a bigger pipe