Re: Rép : [LARTC] about default filter command

[Vincent Dautremont]

i'm a bit lost with the command line of "tc class add"
first i do that and it works
>> # tc qdisc add dev eth0 root handle 1: prio
>> # tc filter add dev eth0 protocol ip parent 1: prio 1 u32 match ip  
>> dport 22 0xffff flowid 1:1
then i do
# tc class add dev eth0 parent:1.0 classid1:2
and the result is "RTNETLINK answers: File Exist"
which seams normal to me because when i create the prio qdisc with  
the first command it add automatically 3 classes (1:1, 1:2, 1:3)

No, i think the problem is not here. It must be the 'how-to' i refer  
to which must be false.
So how to choose  1 of the 3 queue of prio as the default  
one. ...that remains a mistery.

anyway thanks for your help.
Vincent.

Le 27 juil. 07 à 04:00, 吴明津 a écrit :

> you should try to add the class that the filter said unknown flowid
>
> On 7/27/07, Vincent Dautremont <vdautrem at ulb.ac.be> wrote:
>>  Are you sure ?
>> because that's not what is written in the how-to
>> http://lartc.org/howto/lartc.qdisc.classful.html
>> check section 9.5.3 which says that three classes are  
>> automatically created
>> by default.
>> and in section 9.5.3.2 :
>> # tc qdisc add dev eth0 root handle 1: prio
>> ## This *instantly* creates classes 1:1, 1:2, 1:3
>>
>> Vincent.
>>
>> Le 27 juil. 07 à 03:45, 吴明津 a écrit :
>>
>>
>> It seems  you miss the class .
>>
>> On 7/27/07, Vincent Dautremont <vdautrem at ulb.ac.be> wrote:
>> Le 26 juil. 07 à 13:55, Georgi Alexandrov a écrit :
>>
>>
>> > Vincent Dautremont wrote:
>> >
>> >> Hi,
>> >> here I have another newcomer question :-)
>> >> in the section 9.6.1 of this how too
>> >>
>> http://tldp.org/HOWTO/Adv-Routing-HOWTO/lartc.qdisc.filters.html
>> >> we can read commands about filters :
>> >> ------------------------------------------
>> >>
>> >> # tc filter add dev eth0 protocol ip parent 10: prio 1 u32 match \
>> >>   ip dport 22 0xffff flowid 10:1
>> >> # tc filter add dev eth0 protocol ip parent 10: prio 1 u32 match \
>> >>   ip sport 80 0xffff flowid 10:1
>> >> # tc filter add dev eth0 protocol ip parent 10: prio 2 flowid 10:2
>> >>
>> >> What does this say? It says: attach to eth0, node 10: a priority 1
>> >> u32
>> >> filter that matches on IP destination port 22 *exactly* and send
>> >> it to
>> >> band 10:1. And it then repeats the same for source port 80. The  
>> last
>> >> command says that anything unmatched so far should go to band
>> >> 10:2, the
>> >> next-highest priority.
>> >>
>> >> ------------------------------------------
>> >>
>> >> i try to do this at home as i want my ssh traffic prioritary to  
>> other
>> >> traffic but the problem is with the last command ! it simply don't
>> >> work.
>> >> The last command that says default trafic goes to prio 2  
>> doesn't work
>> >>
>> >> # tc filter add dev eth0 protocol ip parent 10: prio 2 flowid 10:2
>> >>
>> >> just give me the error: "Unknown filter flowid, hence option  
>> 1:2 is
>> >> unparsable"
>> >>
>> >> So I don't get what do I must do in order to say that the default
>> >> trafic
>> >> goes on priority 2 of the prio filter
>> >>
>> >> is this how too always valid with the current version of tc ? did
>> >> i do
>> >> something wrong ?
>> >>
>> >> Thank you for your help.
>> >>
>> > <snip>
>> >
>> > You should have posted *all* your tc rules.
>> >
>> > --
>> > regards,
>> > Georgi Alexandrov
>> >
>> > key server - pgp.mit.edu :: key id - 0x37B4B3EE
>> > Key fingerprint = E429 BF93 FA67 44E9 B7D4  F89E F990 01C1 37B4  
>> B3EE
>> >
>> >
>> Ok, thanks for you advise, here are all my tc rules :
>>
>>
>> # tc qdisc add dev eth0 root handle 1: prio
>> # tc filter add dev eth0 protocol ip parent 1: prio 1 u32 match ip
>> dport 22 0xffff flowid 1:1
>> # tc filter add dev eth0 protocol ip parent 1: prio 2 flowid 1:2
>> ----
>> does this lack one rule ? anyway the last one is not accepted by tc.
>>
>> Vincent.
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