Not sure what queue type PPPoE defaults too, likely default-small which seems to be pfifo with 10 packets on my pppoe server. What I am thinking is of a queue type that would be rate-limiting say an online backup at say 0.5 megabits per second upstream, the max for there pppoe profile. A different new stream would come along and the queue type would push that one initially to front of queue so as to give it a fair chance to get started while pushing existing connections to back of queue. Not sure if that makes sense or is possible. Even if it is it might simply max out the CPUs on the CCR mikrotik router keeping track of all this for hundreds of pppoe sessions.
On Wed, Sep 30, 2015 at 11:16 AM, Ken Hohhof <af...@kwisp.com> wrote: > I thought Mikrotik PPPoE queues were always default-small, or is that > because I use RADIUS? > > Personally I use RED but I think there are several choices that will work > well, as long as you don't make the queue size too small. (10 packets is > too small, around 50 is good.) > > I suspect your users who max out their upstream are just seeing what happens > when you max out your upstream, it will make things seem sluggish even if > there is plenty of downstream left. That's how the Internet works. Not > sure you're doing anything wrong. > > BTW, the reason I use RED is that as the queue fills up, the probability of > a packet being dropped increases, hopefully invoking TCP congestion control > to slow the rate of the traffic gracefully. That said, it's probably not a > popular choice. > > > -----Original Message----- From: Matt > Sent: Wednesday, September 30, 2015 10:32 AM > To: af@afmug.com > Subject: [AFMUG] Mikrotik Queue Types > > > Saw in the ePMP knowledge base that they recommend changing queue type > from default to wireless-default. > > In one of my mikrotik pppoe servers I look and see default is pfifo > with 50 packets. Wireless-default is sfq with 5s and 1514bytes. > > What would advantages or reason for the change? > > I don't user epmp yet but on my PPPoE server I frequently have > complaints from users that have there upstream maxed out by one thing > or another complain about there connection. I wander if switching to > sfq might help there? Or it might simply max my Mikrotik CPUs out. >
