Re: [LARTC] Strange behavior deleting filters

["Rodrigo P. Telles" <telles@devel-it.com.br>]

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Andre,

I don't now, when I've had that problem, I didn't find anything about that !
I've tried to report this problem, but all mails that I sent to the list, they
had simply desappeared, and I've found this "solution" (for my case this
solution is good). Later, my mail was started to work and I forgot to notify the
list about that.
I remembered that when I saw your mail about filter rules :-)

I expect that someone have an idea about that, because is impossible that only
you and me are having this behavior.

Telles

Andre Correa wrote:
|
| Hi Rodrigo, tks for the answer. It sounds like a starting point but this
| is not that good if there are several filters pointing to classes with
| high load. In this case lower prio classes will really have higher
| priority.
|
| Isn't it supposed to work as expected: delete only the right filter? May
| it be reported as a bug? Is it a known behavior?
|
| tks...
|
| Andre
|
|
| Rodrigo P. Telles wrote:
|
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|> Andre,
|>
|> I've had the same problem when I try to remove one filter rule.
|> This is ocurred when you have the same prio for all filter rules. I've
|> "solved"
|> my problem using diferent "prio" values in filter rules.
|> I don't now if this is a BUG !
|>
|> Anything else ?
|>
|> Telles
|>
|> Andre Correa wrote:
|> |
|> | Hi list, I'm playing with tc and found a strange behavior when I try to
|> | delete filters. For example, this simple scenario:
|> |
|> | tc qdisc add dev eth1 root handle 1: htb default 100
|> | tc class add dev eth1 parent 1: classid 1:1 htb rate 128Kbit
|> | tc class add dev eth1 parent 1: classid 1:2 htb rate 258Kbit
|> | tc class add dev eth1 parent 1: classid 1:100 htb rate 32Kbit
|> | tc filter add dev eth1 parent 1: protocol ip prio 1 u32 match ip src
|> | 10.10.10.20 match ip dst 63.63.63.63 flowid 1:1
|> | tc filter add dev eth1 parent 1: protocol ip prio 1 u32 match ip src
|> | 10.10.10.20 flowid 1:2
|> |
|> | works just fine, but when I try to delete oen of the filters with
|> | something like this:
|> |
|> | tc filter del dev eth1 parent 1: protocol ip prio 1 u32 match ip src
|> | 10.10.10.20 flowid 1:2
|> |
|> | both filters are deleted.
|> |
|> | I've found a post from Dimitry V. Ketov in the kernel list on may/2003
|> | with a situation like this one, but there are no answers.
|> |
|> | I'm using 2.4.23 and iptables 1.2.7a. Any clues what can be the cause?
|> | I'm suposed to be able to delete filters separately right? May it be
|> a bug?
|> |
|> | Deleting the whole qdisc is not an opition in my setup and trying to
|> | delete the parent class gives me a "device or resource busy" error
|> | because of the filters. tc class del doesn't seen to delete its "child"
|> | filter.
|> |
|> | tks for any information...
|> |
|> | Andre
|> |
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|> |
|> |
|>
|> - --
|> - ------------------------------------------------------
|> Rodrigo P. Telles <telles@devel-it.com.br>
|> Gerente de Projetos - http://www.devel-it.com.br
|> Devel-IT - Uma empresa do Grupo TDKOM
|> - ------------------------------------------------------
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|>
|
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|

- --
- ------------------------------------------------------
Rodrigo P. Telles <telles@devel-it.com.br>
Gerente de Projetos - http://www.devel-it.com.br
Devel-IT - Uma empresa do Grupo TDKOM
- ------------------------------------------------------
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