[LARTC] QoS isssue

[LARTC] QoS isssue

[Andreani Luca]

Dear all,

I have a linux box with two NICs: eth0 (10 Mbit) and pvc0 (64Kbit) (pvc over
frame-relay with a WAN card).
I have two kinds of traffic incoming on eth0: Best effort traffic (TOS=0)
and VoIP traffic (TOS=5).
I want to simply configure the linux box so that It priorizes the VoIP
packets so that all VoIP packets are sent before transmitting the BE
packets. Which command I need with tc?
Looking at LARTC Howto It seems that I can match only packets with TOS 2,4,8
and 16... I didn't understand very well that part...

Luca Andreani


_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

Re: [LARTC] QoS isssue

[Stef Coene]

On Tuesday 22 October 2002 15:38, Andreani Luca wrote:
> Dear all,
>
> I have a linux box with two NICs: eth0 (10 Mbit) and pvc0 (64Kbit) (pvc
> over frame-relay with a WAN card).
> I have two kinds of traffic incoming on eth0: Best effort traffic (TOS=0)
> and VoIP traffic (TOS=5).
> I want to simply configure the linux box so that It priorizes the VoIP
> packets so that all VoIP packets are sent before transmitting the BE
> packets. Which command I need with tc?
> Looking at LARTC Howto It seems that I can match only packets with TOS
> 2,4,8 and 16... I didn't understand very well that part...
TOS  is just 8 byte, so I think you can do this :

u32 match ip tos 0x05 0xff 


Stef

-- 

stef.coene@docum.org
 "Using Linux as bandwidth manager"
     http://www.docum.org/
     #lartc @ irc.oftc.net

_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

Re: [LARTC] QoS isssue

[Stef Coene]

On Tuesday 22 October 2002 21:22, Stef Coene wrote:
> On Tuesday 22 October 2002 15:38, Andreani Luca wrote:
> > Dear all,
> >
> > I have a linux box with two NICs: eth0 (10 Mbit) and pvc0 (64Kbit) (pvc
> > over frame-relay with a WAN card).
> > I have two kinds of traffic incoming on eth0: Best effort traffic (TOS=0)
> > and VoIP traffic (TOS=5).
> > I want to simply configure the linux box so that It priorizes the VoIP
> > packets so that all VoIP packets are sent before transmitting the BE
> > packets. Which command I need with tc?
> > Looking at LARTC Howto It seems that I can match only packets with TOS
> > 2,4,8 and 16... I didn't understand very well that part...
>
> TOS  is just 8 byte, so I think you can do this :
oops, 8 bits ....

> u32 match ip tos 0x05 0xff

Stef

-- 

stef.coene@docum.org
 "Using Linux as bandwidth manager"
     http://www.docum.org/
     #lartc @ irc.oftc.net

_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/