CBQ max bounded rate in tc ??

Kishore V Chitrapu (chitrapu@cotton.vislab.olemiss.edu)
Tue, 15 Jun 1999 09:22:33 -0500

Hi,
The following is the script which I am using to allocate bandwidth to
different classes . Somehow I cann't allocate more than 2.4Mbps to a
class if I use *bounded* for CBQ in tc (iproute2 April ver)
But if I don't use 'bounded'(ie if I share the bandwidth with the other
classes) it can go beyond 2.4Mbps and even upto 100Mbps.

I tried to allocate 100Mbps bounded, it gives somewhere 99Mbps- okand it
works like this till 96Mbps, if I give 50Mbps bounded it allocates only
2.4Mbps
Lower than 2.4Mbps its ok and doing its job.

-------------------------------------------------------------------
eepro100 network cards are being used on Pentiums with RedHat 6.0,
2.2.5-15 kernel ver
===============================================================================

/usr/sbin/tc qdisc add dev eth0 root handle 1: cbq bandwidth 100Mit allot \
1514 cell 8 avpkt 1000 mpu 64

/usr/src/tc class add dev eth0 parent 1:0 classid 1:1 cbq bandwidth 100Mbit \
rate 100Mbit allot 1514 cell 8 weight 10Mbit prio 8 maxburst 20 \
avpkt 1000

/usr/sbin/tc class add dev eth0 parent 1:1 classid 1:2 cbq bandwidth
100Mbit rate $1 \
weight 100Kbit prio 5 allot 1514 avpkt 1024 mpu 64 bounded

/usr/sbin/tc filter add dev eth0 parent 1:0 prio 5 handle 1: u32 divisor \
256

/usr/sbin/tc filter add dev eth0 parent 1:0 prio 5 u32 ht 1:6: match ip
dst 10.1.1.3 \
match tcp dst $2 0xffff classid 1:2
/usr/sbin/tc filter add dev eth0 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:
--------------------------------------------------------------------------------
Thanks in advance for your suggestions
Kishore

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