Alex, With regards to the Polycom phones the DSCP settings are set. I'll forward you a doc off-list explaining how to read the Polycom settings.
With regards to sipXecs and setting RTP and SIP DSCP values, I agree. Mike On Fri, Jun 24, 2011 at 5:48 AM, Tony Graziano <tgrazi...@myitdepartment.net > wrote: > if it doesn't you need to update sipx so you get the fs patch that fixes > stutter on media server > On Jun 24, 2011 5:06 AM, "Alex Brown" <alex...@bellsouth.net> wrote: > > OK, I've reconfigured the port as follows to mark all ingress traffic > > with a dscp value of 46 (ef): > > > > interface GigabitEthernet1/0/7 > > stp edged-port enable > > broadcast-suppression pps 3000 > > port access vlan 162 > > undo jumboframe enable > > description sipXecs > > traffic-priority inbound ip-group 2000 rule 0 dscp ef > > priority-trust cos > > > > Thank you very much for your help. Hopefully this improves things. > > > > > > > > On 6/22/2011 11:59 AM, Michael Picher wrote: > >> Yea, you don't want to 'trust' dscp because sipXecs doesn't set it... > >> you want to force dscp 46 on that port for all traffic... > >> > >> Thanks, > >> Mike > >> > >> On Wed, Jun 22, 2011 at 11:14 AM, Alex Brown <alex...@bellsouth.net > >> <mailto:alex...@bellsouth.net>> wrote: > >> > >> On 6/22/2011 9:45 AM, Michael Picher wrote: > >> > Which port is your sipXecs system plugged into? I don't see a > >> port with > >> > DSCP 46 forced. > >> > > >> > >> My sipXecs system is plugged into port 7 on a 3Com 4200G. Here's the > >> configuration for that port: > >> > >> interface GigabitEthernet1/0/7 > >> stp edged-port enable > >> broadcast-suppression pps 3000 > >> port access vlan 162 > >> undo jumboframe enable > >> priority-trust cos > >> > >> I have just changed the configuration to the following, changing the > >> priority-trust from cos to dscp: > >> > >> interface GigabitEthernet1/0/7 > >> stp edged-port enable > >> broadcast-suppression pps 3000 > >> port access vlan 162 > >> undo jumboframe enable > >> priority-trust dscp > >> > >> The 3Com switches allow for the automatic setting of the COS to 6 and > >> the DSCP to 46 when ports are configured to be a part of the "voice > >> vlan." "Voice VLAN" is a feature of the 3Com 4200 switches. Our voice > >> vlan is 162 and because the port (interface GigabitEthernet1/0/7) is > >> already in VLAN 162, I believe its DSCP value is already set to 46 > >> because when, as a test, I tried to add the "voice vlan enable" command > >> to that port, it told me the following: > >> > >> [4200G]interface GigabitEthernet1/0/7 > >> [4200G-GigabitEthernet1/0/7]voice vlan enable > >> Can't enable voice vlan because the port is in voice vlan and auto > >> mode has been set! > >> [4200G-GigabitEthernet1/0/7] > >> > >> When I look at the status for the voice VLAN, I see the following: > >> > >> [4200G]display voice vlan status > >> Voice Vlan status: ENABLE > >> Voice Vlan ID: 162 > >> Voice Vlan security mode: Security > >> Voice Vlan aging time: 1440 minutes > >> Current voice vlan enabled port mode: > >> PORT MODE COS DSCP > >> --------------------------------------------- > >> GigabitEthernet1/0/4 AUTO 6 46 > >> GigabitEthernet1/0/5 AUTO 6 46 > >> GigabitEthernet1/0/6 AUTO 6 46 > >> GigabitEthernet1/0/8 AUTO 6 46 > >> GigabitEthernet1/0/9 AUTO 6 46 > >> GigabitEthernet1/0/10 AUTO 6 46 > >> GigabitEthernet1/0/11 AUTO 6 46 > >> GigabitEthernet1/0/12 AUTO 6 46 > >> GigabitEthernet1/0/13 AUTO 6 46 > >> GigabitEthernet1/0/14 AUTO 6 46 > >> GigabitEthernet1/0/15 AUTO 6 46 > >> GigabitEthernet1/0/18 AUTO 6 46 > >> GigabitEthernet1/0/19 AUTO 6 46 > >> GigabitEthernet1/0/20 AUTO 6 46 > >> GigabitEthernet1/0/21 AUTO 6 46 > >> GigabitEthernet1/0/22 AUTO 6 46 > >> GigabitEthernet1/0/23 AUTO 6 46 > >> GigabitEthernet1/0/24 AUTO 6 46 > >> > >> [4200G] > >> > >> The voice VLAN is a dynamic VLAN that automatically detects the presence > >> of IP phones based on their MAC addresses. Since the sipXecs server is > >> not a Polycom phone, it does not appear in this dynamically updated > >> list. > >> > >> The following statement is from the 3Com Switch 4200G Family > >> Configuration Guide: > >> > >> In order to improve the transmission quality of voice traffic, the > >> switch by default re-marks the precedence of the traffic in the voice > >> VLAN as follows: > >> - Set the CoS (802.1p) precedence to 6. > >> - Set the DSCP precedence to 46. > >> > >> > >> _______________________________________________ > >> sipx-users mailing list > >> sipx-users@list.sipfoundry.org <mailto:sipx-users@list.sipfoundry.org> > >> List Archive: http://list.sipfoundry.org/archive/sipx-users/ > >> > >> > >> > >> > >> -- > >> Michael Picher > >> eZuce > >> Director of Technical Services > >> O.978-296-1005 X2015 > >> M.207-956-0262 > >> @mpicher <http://twitter.com/mpicher> > >> www.ezuce.com <http://www.ezuce.com> > >> > > > > > > _______________________________________________ > > sipx-users mailing list > > sipx-users@list.sipfoundry.org > > List Archive: http://list.sipfoundry.org/archive/sipx-users/ > > _______________________________________________ > sipx-users mailing list > sipx-users@list.sipfoundry.org > List Archive: http://list.sipfoundry.org/archive/sipx-users/ > -- Michael Picher eZuce Director of Technical Services O.978-296-1005 X2015 M.207-956-0262 @mpicher <http://twitter.com/mpicher> www.ezuce.com
_______________________________________________ sipx-users mailing list sipx-users@list.sipfoundry.org List Archive: http://list.sipfoundry.org/archive/sipx-users/
