X-Git-Url: http://git.onelab.eu/?p=iproute2.git;a=blobdiff_plain;f=README.iproute2%2Btc;fp=README.iproute2%2Btc;h=0000000000000000000000000000000000000000;hp=edd79c0ec1e696ed8f3a8e175ad17c337f428d47;hb=3331a68859fd71047bb1f309048960b48eab2d83;hpb=2bd4a72f2100be7ad7d9518cb1d49bb2a5b71994

diff --git a/README.iproute2+tc b/README.iproute2+tc
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-iproute2+tc*
-
-It's the first release of Linux traffic control engine.
-
-
-NOTES.
-* csz scheduler is inoperational at the moment, and probably
-  never will be repaired but replaced with h-pfq scheduler.
-* To use "fw" classifier you will need ipfwchains patch.
-* No manual available. Ask me, if you have problems (only try to guess
-  answer yourself at first 8)).
-
-
-Micro-manual how to start it the first time
--------------------------------------------
-
-A. Attach CBQ to eth1:
-
-tc qdisc add dev eth1 root handle 1: cbq bandwidth 10Mbit allot 1514 cell 8 \
-avpkt 1000 mpu 64
-
-B. Add root class:
-
-tc class add dev eth1 parent 1:0 classid 1:1 cbq bandwidth 10Mbit rate 10Mbit \
-allot 1514 cell 8 weight 1Mbit prio 8 maxburst 20 avpkt 1000
-
-C. Add default interactive class:
-
-tc class add dev eth1 parent 1:1 classid 1:2 cbq bandwidth 10Mbit rate 1Mbit \
-allot 1514 cell 8 weight 100Kbit prio 3 maxburst 20 avpkt 1000 split 1:0 \
-defmap c0
-
-D. Add default class:
-
-tc class add dev eth1 parent 1:1 classid 1:3 cbq bandwidth 10Mbit rate 8Mbit \
-allot 1514 cell 8 weight 800Kbit prio 7 maxburst 20 avpkt 1000 split 1:0 \
-defmap 3f
-
-etc. etc. etc. Well, it is enough to start 8) The rest can be guessed 8)
-Look also at more elaborated example, ready to start rsvpd,
-in rsvp/cbqinit.eth1.
-
-
-Terminology and advices about setting CBQ parameters may be found in Sally Floyd
-papers. 
-
-
-Pairs X:Y are class handles, X:0 are qdisc heandles.
-weight should be proportional to rate for leaf classes
-(I choosed it ten times less, but it is not necessary)
-
-defmap is bitmap of logical priorities served by this class.
-
-E. Another qdiscs are simpler. F.e. let's join TBF on class 1:2
-
-tc qdisc add dev eth1 parent 1:2 tbf rate 64Kbit buffer 5Kb/8 limit 10Kb
-
-F. Look at all that we created:
-
-tc qdisc ls dev eth1
-tc class ls dev eth1
-
-G. Install "route" classifier on root of cbq and map destination from realm
-1 to class 1:2
-
-tc filter add dev eth1 parent 1:0 protocol ip prio 100 route to 1 classid 1:2
-
-H. Assign routes to 10.11.12.0/24 to realm 1
-
-ip route add 10.11.12.0/24 dev eth1 via whatever realm 1
-
-etc. The same thing can be made with rules.
-I still did not test ipchains, but they should work too.
-
-Setup of rsvp and u32 classifiers is more hairy.
-If you read RSVP specs, you will understand how rsvp classifier
-works easily. What's about u32... That's example:
-
-
-
-#! /bin/sh
-
-TC=/home/root/tc
-
-# Setup classifier root on eth1 root (it is cbq)
-$TC filter add dev eth1 parent 1:0 prio 5 protocol ip u32
-
-# Create hash table of 256 slots with ID 1:
-$TC filter add dev eth1 parent 1:0 prio 5 handle 1: u32 divisor 256
-
-# Add to 6th slot of hash table rule to select tcp/telnet to 193.233.7.75
-# direct it to class 1:4 and prescribe to fall to best effort,
-# if traffic violate TBF (32kbit,5K)
-$TC filter add dev eth1 parent 1:0 prio 5 u32 ht 1:6: \
-	match ip dst 193.233.7.75 \
-	match tcp dst 0x17 0xffff \
-	flowid 1:4 \
-	police rate 32kbit buffer 5kb/8 mpu 64 mtu 1514 index 1
-
-# Add to 1th slot of hash table rule to select icmp to 193.233.7.75
-# direct it to class 1:4 and prescribe to fall to best effort,
-# if traffic violate TBF (10kbit,5K)
-$TC filter add dev eth1 parent 1:0 prio 5 u32 ht 1:: \
-	sample ip protocol 1 0xff \
-	match ip dst 193.233.7.75 \
-	flowid 1:4 \
-	police rate 10kbit buffer 5kb/8 mpu 64 mtu 1514 index 2
-
-# Lookup hash table, if it is not fragmented frame
-# Use protocol as hash key
-$TC filter add dev eth1 parent 1:0 prio 5 handle ::1 u32 ht 800:: \
-	match ip nofrag \
-	offset mask 0x0F00 shift 6 \
-	hashkey mask 0x00ff0000 at 8 \
-	link 1:
-
-
-Alexey Kuznetsov
-kuznet@ms2.inr.ac.ru