green wrote at 2010-03-04 22:35 -0600: > Alex Samad wrote at 2010-03-04 16:18 -0700: > > On Thu, 2010-03-04 at 15:17 -0700, green wrote: > > > green wrote at 2010-02-12 08:03 -0700: > > > > An automatic detection of down/up bandwidth would be great... > > > > > > Is it even possible to implement traffic shaping without knowing the available > > > bandwidth? > > > > If you setting to fix limits why not ? > > I'm not setting fixed limits, I am prioritizing traffic by type/connection/IP. > > > > For example, can I set up egress shaping on the internet interface without ever > > > specifying a bandwidth limit? In that case will the queues be always empty? At some point in my research, I seem to have answered my question. Some of this came from LARTC and some from elsewhere (which I can't find now). For the root qdisc, shaping must occur when a high speed interface is connected to a slower device (like a cable modem). Otherwise the queue is in the cable modem rather than in the Linux device. I am assuming then that shaping is not necessary when the interface is to a client device, like ethernet or wireless to another host. That is, something like SFQ will work without being under a HTB rate-limiting qdisc. (I think there is a proper way to differentiate between these two types of a connections...?)
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