On Monday 02 June 2003 18:41, Cain, Joseph wrote: > I sent this the other day, but I must have misaddressed it since > this is my first posting to this list. It arrived fine. But none of the other list members had an answer on your questions. > Sorry for the newbie questions. > > Bibb Cain > > > -----Original Message----- > > From: Cain, Joseph > > Sent: Thursday, May 29, 2003 5:18 PM > > To: 'lartc@xxxxxxxxxxxxxxx' > > Cc: Cain, Joseph > > Subject: pfifo_fast and prio > > > > A couple of quick questions about using priority queuing. I am > > doing experiments with ad hoc routing protocols and I want > > to ultimately have 3 or 4 classes of traffic. At present I am > > using the default pfifo_fast queuing discipline on the wireless > > interface with 3 classes of traffic and with a 100 packet > > buffer on the interface. > > 1) Is there a way to allocate a fixed amount of buffer space > > to each of the 3 bands with pfifo_fast? I suspect not, but I > > don't see any documentation on this. My guess is that it is > > one big block of memory that could be filled by lower > > priority packets and reject new higher priority packets when full. > > I think we have encountered congested situations where > > higher priority traffic may be blocked because the buffer > > is full of lower priority packets. Will this be true? > > 2) I want to eventually replace this pfifo_fast queuing discipline > > with the prio queuing discipline with 4 bands and with defined > > amounts of buffer space allocated to each band when I understand how to > > do it. The examples I have seen in the HOWTO for configuring this seem to > > indicate > > that the prio queuing discipline automatically comes up with 3 bands, but > > I didn't see > > any examples of tc commands to configure additional bands > > or allocate buffer to the bands. Is this possible and is there > > a tc document that provides the necessary commands? > > Or could you show me the necessary commands? > > > > Thanks for the help. > > > > Bibb Cain > > _______________________________________________ > LARTC mailing list / LARTC@xxxxxxxxxxxxxxx > http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/ Stef -- stef.coene@xxxxxxxxx "Using Linux as bandwidth manager" http://www.docum.org/ #lartc @ irc.oftc.net
