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" <[email protected]> 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 <[email protected] >> <mailto:[email protected]>> 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 >> [email protected] <mailto:[email protected]> >> 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 > [email protected] > List Archive: http://list.sipfoundry.org/archive/sipx-users/
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