Date: Tue, 2 May 2006 17:47:54 -0400 From: "Michael W. Oliver" <michael@gargantuan.com> To: tpeixoto@widesoft.com.br Cc: freebsd-net@freebsd.org, ferdinand.goldmann@jku.at Subject: Re: Packet loss with traffic shaper and routing Message-ID: <20060502214754.GL11342@gargantuan.com> In-Reply-To: <55494.200.230.201.250.1146590354.squirrel@www.widemail.com.br> References: <49594.200.230.201.250.1146063341.squirrel@www.widemail.com.br> <444F8E89.2050905@wildcard.net.uk> <56286.200.230.201.250.1146067775.squirrel@www.widemail.com.br> <1146073590.1089.80.camel@sky.mediasat.ro> <59615.200.230.201.250.1146083577.squirrel@www.widemail.com.br> <44506D87.1020808@jku.at> <4456B1E0.9040408@widesoft.com.br> <20060502040911.GG11342@gargantuan.com> <55494.200.230.201.250.1146590354.squirrel@www.widemail.com.br>
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On 2006-05-02T14:19:14-0300, tpeixoto@widesoft.com.br wrote:
>> On 2006-05-01T22:12:00-0300, tpeixoto@widesoft.com.br wrote:
>>> Please, take a look in my previous post.
>>> I guess the problem lies with IPFW and dummynet.
>>> How do you shape your clients?
>>>=20
>>> Here we have (for each client):
>>>=20
>>> ipfw pipe 1 config bw 512Kbit/s
>>> ipfw pipe 2 config bw 512Kbit/s
>>> ipfw add pipe 1 ip from any to any mac any 00:11:22:33:44:55 in
>>> ipfw add pipe 2 ip from any to any mac 00:11:22:33:44:55 any out
>>=20
>> I am no ipfw or dummynet expert, but I read some of your other posts and
>> noticed that you are using 3200 rules and 3200 pipes, and are matching
>> the mac address. Do you have to match the mac, or can you do this by IP
>> address? According to the IPFW man page, if you specify a mask with
>> your pipe configuration, you can match on every bit which would
>> dynamically create the pipes based on the size of the parent pipe. I
>> think it would be something like...
>>=20
>> ipfw pipe 1 config bw 512kbit/s mask src-ip 0xffffffff
>> ipfw pipe 2 config bw 512kbit/s mask dst-ip 0xffffffff
>> ipfw add pipe 1 ip from any to any in
>> ipfw add pipe 2 ip from any to any out
>>=20
>> Like I said, I am no expert, but figured I would spew this to the list
>> anyway.
>
> I see that.
> But if I got this right, I cannot set up speeds individually.
> We have different speeds for each host.
>=B7
> Thanks for your time.
Well, if my understanding is correct, you can think of each pipe config
as a template to be used in the generation of dynamic pipes. So, for
each speed/size of pipe you want, create two pipes, one with all-ones
mask for src and the other with all-ones mask for dst...
x=3D0
for each in 64 128 192 256 384 512 576 640;
do
x=3D$(($x+1))
ipfw pipe ${x} config bw ${each}kbit/s mask src-ip 0xffffffff
x=3D$(($x+1))
ipfw pipe ${x} config bw ${each}kbit/s mask dst-ip 0xffffffff
done
so, for each speed you would have a pipe for in (src) and out (dst), and
then you can just use the template instead of creating 3200 pipes. this
doesn't really help your 'allow' rule situation, but I figured I would
offer anyway.
--=20
Mike Oliver, KI4OFU
[see complete headers for contact information]
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