From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Slinn Date: Thu, 21 Oct 2004 23:13:36 +0000 Subject: [LARTC] Resetting traffic history Message-Id: <417842A0.8030002@zamples.com> MIME-Version: 1 Content-Type: multipart/mixed; boundary="------------040704020106050507070704" List-Id: References: <416D89ED.6090508@zamples.com> In-Reply-To: <416D89ED.6090508@zamples.com> To: lartc@vger.kernel.org This is a multi-part message in MIME format. --------------040704020106050507070704 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit I'm a tc newbie, and I think I am close to being able to use it to control one of the virtual web sites on our Gentoo Linux server. The site has it's own IP address. I have a bit of a problem in that the way I originally configured tc, the busy site grabbed all the bandwidth, leaving none for the other (and more important) sites. Here is how I had configured it: tc qdisc replace dev $NIC root tbf rate $RATE_TOTAL latency 50ms burst $BURST The total data rate was pegged within acceptable limits, but the problem is that data stopped flowing after tc was active after a few hours. The busy site had a few peak periods and presumably used up all the traffic allotment. Perhaps tc remembers the traffic between invocations? I then tried a slightly more sophisticated setup: tc qdisc del dev $DEV root tc qdisc add dev $NIC root handle 1: cbq avpkt 1000 bandwidth 1000mbit tc class add dev $NIC parent 1: classid 1:1 cbq rate $RATE_PROBLEM allot 1500 prio 5 bounded # isolated tc filter add dev $NIC parent 1: protocol ip prio 16 u32 match ip dst $IP flowid 1:1 Unfortunately, I still don't get any traffic flowing while tc is active now. Seems that I need to reset something. Any suggestions? I've shut down the problem site and disabled tc while I try to figure out a solution. Thanks for your help! Mike mslinn at mslinn.com --------------040704020106050507070704 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit I'm a tc newbie, and I think I am close to being able to use it to control one of the virtual web sites on our Gentoo Linux server. The site has it's own IP address. I have a bit of a problem in that the way I originally configured tc, the busy site grabbed all the bandwidth, leaving none for the other (and more important) sites. Here is how I had configured it:

tc qdisc replace dev $NIC root tbf rate $RATE_TOTAL latency 50ms burst $BURST

The total data rate was pegged within acceptable limits, but the problem is that data stopped flowing after tc was active after a few hours. The busy site had a few peak periods and presumably used up all the traffic allotment. Perhaps tc remembers the traffic between invocations?

I then tried a slightly more sophisticated setup:

tc qdisc del dev $DEV root
tc qdisc add dev $NIC root handle 1: cbq avpkt 1000 bandwidth 1000mbit
tc class add dev $NIC parent 1: classid 1:1 cbq rate $RATE_PROBLEM allot 1500 prio 5 bounded # isolated
tc filter add dev $NIC parent 1: protocol ip prio 16 u32 match ip dst $IP flowid 1:1

Unfortunately, I still don't get any traffic flowing while tc is active now. Seems that I need to reset something. Any suggestions? I've shut down the problem site and disabled tc while I try to figure out a solution.

Thanks for your help!

Mike
mslinn at mslinn.com
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