<P>I presently use TBF with this syntax:</P> <P>tc qdisc add dev eth0 parent 1:100 tbf buffer=15000/8 LIMIT=30000 MTU=1500</P> <P>parent class is a cbq with rate=128Kbit</P> <P>when I want to add PEAK, I&nbsp;get&nbsp;always RTNETLINK error: Invalid argument. Maybe be I don't understand this parameter. What I know about it, it's that it can control short-term burst traffic, and it's what I need to do.</P> <P>&nbsp;</P> <ADDRESS>---</ADDRESS> <ADDRESS>Jean-Francois Lemieux</ADDRESS> <ADDRESS>IT CONSULTANT</ADDRESS> <ADDRESS>MCJ CONSEIL INC</ADDRESS><BR><BR>--- <br>Jean-Francois Lemieux <br>Directeur des projets <br>MCJ Conseil Inc. <br> <br><p><br><hr size=1><b>Do You Yahoo!?</b><br> - Get personalized email addresses from <a href=http://personal.mail.yahoo.com/>Yahoo! Mail Personal Address</a> - only $35 a year!