Can anyone comment on the DSCP quality of service settings on your Asterisk server? The network we're setting up has data on the default VLAN, Asterisk server and phones on VLAN 4, and we're using Polycom phones with a PC hooked up to the phone's pass-thru port. What iptables settings are you using on the Asterisk server for DSCP? What are your Polycom DSCP settings? We're using the Linksys SGE2000P POE switch which supports QOS via DSCP. Thanks a lot for any info. Steve
We're using 184 here (aka TOS 5/EF). Not set by iptables though, instead it is set in sip.conf (tos_sip/tos_audio) and on our Polycom/Cisco phones. -----Original Message----- From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Steve Johnson Sent: Wednesday, December 05, 2007 12:49 To: asterisk-users at lists.digium.com Subject: [asterisk-users] Asterisk server and DSCP QOS Can anyone comment on the DSCP quality of service settings on your Asterisk server? The network we're setting up has data on the default VLAN, Asterisk server and phones on VLAN 4, and we're using Polycom phones with a PC hooked up to the phone's pass-thru port. What iptables settings are you using on the Asterisk server for DSCP? What are your Polycom DSCP settings? We're using the Linksys SGE2000P POE switch which supports QOS via DSCP. Thanks a lot for any info. Steve _______________________________________________ --Bandwidth and Colocation Provided by http://www.api-digital.com-- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Thanks, Darryl,
To clarify:
in /etc/asterisk/sip.conf you have the lines:
tos_sip=cs3 ; Sets TOS for SIP packets.
tos_audio=ef ; Sets TOS for RTP audio packets.
and in your Polycom configuration [I'm using Polycom's sip 2.2.0] you
have something like (this is the one I'm uncertain about):
<QOS>
<Ethernet>
<RTP qos.ethernet.rtp.user_priority="5"/>
<CallControl
qos.ethernet.callControl.user_priority="5"/>
<Other qos.ethernet.other.user_priority="2"/>
</Ethernet>
<IP>
<RTP qos.ip.rtp.dscp="184"
qos.ip.rtp.min_delay="1"
qos.ip.rtp.max_throughput="1" qos.ip.rtp.max_reliability="0"
qos.ip.rtp.min_cost="0" qos.ip.rtp.precedence="5"/>
<CallControl qos.ip.callControl.dscp="184"
qos.ip.callControl.min_delay="1"
qos.ip.callControl.max_throughput="0"
qos.ip.callControl.max_reliability="0"
qos.ip.callControl.min_cost="0"
qos.ip.callControl.precedence="5"/>
</IP>
</QOS>
Thanks again!
Steve
Darryl Duncan wrote:
We're using 184 here (aka TOS 5/EF).
Not set by iptables though, instead it is set in sip.conf
(tos_sip/tos_audio) and on our Polycom/Cisco phones.
-----Original Message-----
Subject: [asterisk-users] Asterisk server and DSCP QOS
Can anyone comment on the DSCP quality of service settings on your
Asterisk server?
The network we're setting up has data on the default VLAN, Asterisk
server and phones on VLAN 4, and we're using Polycom phones with a PC
hooked up to the phone's pass-thru port.
What iptables settings are you using on the Asterisk server for DSCP?
What are your Polycom DSCP settings? We're using the Linksys SGE2000P
POE switch which supports QOS via DSCP.
Thanks a lot for any info.
Steve
Looks fine to me, you only need to specify DSCP or TOS (may need to
check the manual for which it takes first).
-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Steve
Johnson
Sent: Wednesday, December 05, 2007 14:02
To: asterisk-users at lists.digium.com
Subject: [asterisk-users] Re: Asterisk server and DSCP QOS
Thanks, Darryl,
To clarify:
in /etc/asterisk/sip.conf you have the lines:
tos_sip=cs3 ; Sets TOS for SIP packets.
tos_audio=ef ; Sets TOS for RTP audio packets.
and in your Polycom configuration [I'm using Polycom's sip 2.2.0] you
have something like (this is the one I'm uncertain about):
<QOS>
<Ethernet>
<RTP qos.ethernet.rtp.user_priority="5"/>
<CallControl
qos.ethernet.callControl.user_priority="5"/>
<Other qos.ethernet.other.user_priority="2"/>
</Ethernet>
<IP>
<RTP qos.ip.rtp.dscp="184"
qos.ip.rtp.min_delay="1"
qos.ip.rtp.max_throughput="1" qos.ip.rtp.max_reliability="0"
qos.ip.rtp.min_cost="0" qos.ip.rtp.precedence="5"/>
<CallControl qos.ip.callControl.dscp="184"
qos.ip.callControl.min_delay="1"
qos.ip.callControl.max_throughput="0"
qos.ip.callControl.max_reliability="0"
qos.ip.callControl.min_cost="0"
qos.ip.callControl.precedence="5"/>
</IP>
</QOS>
Thanks again!
Steve
Darryl Duncan wrote:
We're using 184 here (aka TOS 5/EF).
Not set by iptables though, instead it is set in sip.conf
(tos_sip/tos_audio) and on our Polycom/Cisco phones.
-----Original Message-----
Subject: [asterisk-users] Asterisk server and DSCP QOS
Can anyone comment on the DSCP quality of service settings on your
Asterisk server?
The network we're setting up has data on the default VLAN, Asterisk
server and phones on VLAN 4, and we're using Polycom phones with a PC
hooked up to the phone's pass-thru port.
What iptables settings are you using on the Asterisk server for DSCP?
What are your Polycom DSCP settings? We're using the Linksys SGE2000P
POE switch which supports QOS via DSCP.
Thanks a lot for any info.
Steve
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Hi! Steve Johnson wrote:> The network we're setting up has data on the default VLAN, Asterisk > server and phones on VLAN 4, and we're using Polycom phones with a PC > hooked up to the phone's pass-thru port. >If you are using VLAN, than you also look at new options in trunk cos_sip and cos_audio to set 802.1p. (If you run Linux). It will help with QoS too. -- Best regards, Igor A. Goncharovsky ________________________________ ICQ: 648337 mailto: igi-go at ya.ru ________________________________