Rado, I guess the issue centers around every linux box I have shows the pfifo_qdisc when I do an 'ip link show'. But when I do a tc it does not do this. This definitely tells me that tc is not reading the qdiscs properly which also probably means it is not setting them right either. Problem is that is compiles properly and does not give me an errors during build. This is really starting to drive me crazy. Appreciate your help. Thanx, Roy -----Original Message----- From: Radoslav Kolev [mailto:radolin@xxxxxx] Sent: Monday, March 01, 2004 5:03 AM To: Roy Walker Subject: Re: Strange tc issue Hi, Roy! Roy Walker wrote: > When the system starts up it already shows a qdisc attached to eth0. > This is just in bringing up the interface and not setting any commands > with tc: > > qdisc pfifo_fast 0: dev eth0 [Unknown qdisc, optlen=20] > Every interface has a QDISC when it's brought up, and by default this is the pfifo_fast qdisc, which does no shaping but just passes packets to the interface on a First In First Our basis. So this a perfectly normal thing (beast :-) for the Douglas adam fans). > The system will work fine in this scenario. It's only when I try to > apply any other qdiscs to ANY interface in the system (regardless of > whether it is eth0 or not), that I loose all inbound connectivity to > the system. It will allow me to connect with tcp outbound, but icmp > does not work outbound or inbound. > I'm not sure about that, check your iptables configurations. Also old versions of HTB used to drop any traffic not filtered into a class, may be a similar problem. Greetings, Rado
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