Re: need help with tc filters

Linux Advanced Routing and Traffic Control

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Bob,

Thanks, those filters that you sent do work. So, any tips? Is the "prio" qdisc superfluous if I am already using htb? What was it about my filters that didn't work?

I will fiddle with this a bit...  this helps a lot.

Jim

Bob Puff@NLE wrote:
Hi Jim,

Try something a little more simple:

tc qdisc del dev $IF root
tc qdisc add dev $IF root handle 1: htb default 11
tc class add dev $IF parent 1: classid 1:1 htb rate 384kbit
tc class add dev $IF parent 1:1 classid 1:10 htb prio 0 rate 384kbit burst 3k
tc class add dev $IF parent 1:1 classid 1:11 htb prio 3 rate 384kbit

# "bulk" ssh on port 20022 goes to 1:11: (low priority)
tc filter add dev $IF parent 1:0 protocol ip prio 1 u32 \
       match ip sport 20022 0xffff flowid 1:11
       tc filter add dev $IF parent 1:0 protocol ip prio 1 u32 \
       match ip dport 20022 0xffff flowid 1:11

# ICMP goes fast:
tc filter add dev $IF parent 1:0 protocol ip prio 0 u32 \
       match ip protocol 1 0xff flowid 1:10

Some minor changes in numbers there.  Class 1:10 is fast, 1:11 is bulk.

Bob


Jim Lawson wrote:

Hi,

I am attempting to set up some simple outbound shaping following the
LARTC HOWTO.

The HTB qdisc seems to work as the documentation says, but my filters
don't seem to be working.  All of the packets go to the default queue
regardless of what filters I set, it seems.  (according to tc -s qdisc
show)

I am trying to get this working on my openwrt box (whiterussian rc6),
but when testing it on my Debian etch box for comparison, I see the same
behavior.

I'm hoping someone can point out what I'm doing wrong with the filters...

FYI: "vlan1" is the outbound interface of my wrt54g.

Script follows:

IF=vlan1

insmod cls_u32
insmod sch_htb
insmod sch_prio
insmod sch_sfq

#
#  qdisc/class tree


#       1:      root (HTB)  qdisc
#       |
#      1:10     class rate 384000bit
#       |
#      10:      prio qdisc
#    /  |  \
#  10:1 |   10:3
#  |  10:2    |
# 101:  |     |         sfq
#      102:   |         sfq
#            103:       sfq


tc qdisc del dev $IF root

tc qdisc add dev $IF root handle 1: htb default 10

tc class add dev $IF parent 1: classid 1:10 htb rate 384kbit burst 3k

# This automatically creates 10:1, 10:2, 10:3
tc qdisc add dev $IF parent 1:10 handle 10: prio

# Add sfq qdisc to each of the priority classes

tc qdisc add dev $IF parent 10:1 handle 101: sfq

tc qdisc add dev $IF parent 10:2 handle 102: sfq

tc qdisc add dev $IF parent 10:3 handle 103: sfq

# "bulk" ssh on port 20022 goes to 103: (low priority)
tc filter add dev $IF parent 1:0 protocol ip prio 1 u32 \
       match ip sport 20022 0xffff flowid 103:
       tc filter add dev $IF parent 1:0 protocol ip prio 1 u32 \
       match ip dport 20022 0xffff flowid 103:

# ICMP goes fast?

tc filter add dev $IF parent 1:0 protocol ip prio 2 u32 \
       match ip protocol 1 0xff flowid 101:



_______________________________________________
LARTC mailing list
LARTC@xxxxxxxxxxxxxxx
http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc


_______________________________________________
LARTC mailing list
LARTC@xxxxxxxxxxxxxxx
http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc

[Index of Archives]     [LARTC Home Page]     [Netfilter]     [Netfilter Development]     [Network Development]     [Bugtraq]     [GCC Help]     [Yosemite News]     [Linux Kernel]     [Fedora Users]
  Powered by Linux