[Asterisk-Users] 802.1p , precedence and TOS

Eugenio De Vena edevena at gsy.it
Thu Apr 21 11:58:28 MST 2005


well tos is already set and working ( I debugged the packet in and out ) and
they work
but to and precedence work at layer 3 i.e. in the ip header so they are
considered by routers
and layer3 switches. I want the 802.1p switch to pass voice traffic
priorized on the lan not the wan.
The way to do this is at level 2 ( mac level ) . The only language switch
understand, because they do not
go at IP level ( at least 3com 3300 ... )
Eugenio

----- Original Message ----- 
From: "Steve Blair" <blairs at isc.upenn.edu>
To: "Asterisk Users Mailing List - Non-Commercial Discussion"
<asterisk-users at lists.digium.com>
Sent: Thursday, April 21, 2005 6:56 PM
Subject: Re: [Asterisk-Users] 802.1p , precedence and TOS


>
>   Why wouldn't you just use tos=<some value like 0xb8> or tos=lowdelay
> depending upon the config file in question? Remember there is an overlap
> between IP precedence bits and some DSCPs for backward compatability.
> Honor that overlap and you can use DiffServ processing logic even if your
> device can only set an IP prec. value.
>
> Eugenio De Vena wrote:
>
> >well I thought that with diffserv it could be done, I will double check
and
> >let you know,
> >thanks for you hint.
> >Eugenio
> >
> >----- Original Message ----- 
> >From: "SCollins" <smjjscollins at comcast.net>
> >To: "Asterisk Users Mailing List - Non-Commercial Discussion"
> ><asterisk-users at lists.digium.com>
> >Sent: Thursday, April 21, 2005 1:49 PM
> >Subject: Re: [Asterisk-Users] 802.1p , precedence and TOS
> >
> >
> >
> >
> >>I Don't know if this is a solution that is not better suited for your
> >>Linux Distro, using vconfig and a 802.1q/1p aware NIC, on the * Server,
to
> >>create and prioitize the Ingress and Egress Voice VLAN traffic.
> >>
> >>Would you not agree?
> >>
> >>Sean
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >
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>
> -- 
>
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>
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