accel-ppp.org

Do this in your RADIUS server. It's not a job for a BRAS.

It might be worth switching to a X540 or X520. They are relatively cheap and see if that solves your problem?

I'm using 0x8100 rather than 0x8a88. It doesn't really matter either way I've found. I can reproduce it if I do a: pppoe interface add eth3.1234 What I see in the tcpdump capture on the interface is: - PADI comes in with S and C tags - PADO goes out with S tag only My config is this: vlan-mon=re:eth...

Yep, as per the following config:

[core]
...
thread-count=8

You should have one thread per core. I haven't turned my mind to if one thread per hyper-thread would be better.

Hi I haven't had a chance to look into this yet, but I've noticed, that in a 802.1ad QinQ environment, if I add a PPPoE interface (e.g. eth3.1234) via accel-cmd, then the PADO response to the PADI is missing the (inside) C-tag. If I restart accel-ppp with that same interface present, but up first be...

How many threads do you have configured? It should be (at least) one per CPU.

I posted on GitHub some improvements for L2TP as well - CLI and performance. They might be of assistance to you. I've found the only real performance bottleneck of accel-ppp is the performance of the hardware to handle enough network interrupts, which is great!

I came across this today: https://serverfault.com/questions/732055/intel-x540-t1-10gige-nic-works-but-extremely-slow-high-latency-on-ubuntu-14-04 Disable LRO if enabling ip forwarding or bridging WARNING: The ixgbe driver supports the Large Receive Offload (LRO) feature. This option offers the lowes...

Try turning off with 'ethtool' any VLAN tag related acceleration and see if that solves your issue.

It's pretty easy to do from RADIUS. The policy layer belongs in AAA, not in the BNG. Look into FreeRADIUS + the ip pool module it has.