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    Confirming QoS for VOIP on Procurve 2848

    Scheduled Pinned Locked Moved IT Discussion
    voipqostaggingprocurveyealinkdscp taggingdscpvlan
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    • DashrenderD
      Dashrender
      last edited by

      Do the phones set that priority themselves?

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      • DustinB3403D
        DustinB3403
        last edited by

        @Dashrender I haven't gotten to look at the phones yet. I honestly don't know, something I should look into.

        DashrenderD 1 Reply Last reply Reply Quote 0
        • DashrenderD
          Dashrender @DustinB3403
          last edited by

          @dustinb3403 said in Confirming QoS for VOIP on Procurve 2848 - Procurve:

          @Dashrender I haven't gotten to look at the phones yet. I honestly don't know, something I should look into.

          If they aren't, then what would be setting the priority?

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          • DustinB3403D
            DustinB3403
            last edited by

            This is the details on the phone

            Network and Security

            SIP v1 (RFC2543), v2 (RFC3261)
            Call server redundancy supported
            NAT transverse: STUN mode
            Proxy mode and peer-to-peer SIP link mode
            IP assignment: static/DHCP/PPPoE
            HTTP/HTTPS web server
            Time and date synchronization using SNTP
            UDP/TCP/DNS-SRV(RFC 3263)
            QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS DSCP
            SRTP for voice
            Transport Layer Security (TLS)
            HTTPS certificate manager
            AES encryption for configuration file
            Digest authentication using MD5/MD5-sess
            OpenVPN, IEEE802.1X
            IPv6

            So it does do 802.1p/Q tagging for VLANs, as well as Layer 3 ToS DSCP

            DashrenderD 1 Reply Last reply Reply Quote 0
            • DashrenderD
              Dashrender @DustinB3403
              last edited by

              @dustinb3403 said in Confirming QoS for VOIP on Procurve 2848 - Procurve:

              So it does do 802.1p/Q tagging for VLANs, as well as Layer 3 ToS DSCP

              You mean it can. Have you checked that it's enabled by default? Perhaps this is part of the settings you have to do when you pick what VLAN to put voice on. Of course ML folks all say, you shouldn't bother with a VLAN, waste of time.

              DustinB3403D 1 Reply Last reply Reply Quote 0
              • DustinB3403D
                DustinB3403 @Dashrender
                last edited by

                @dashrender said in Confirming QoS for VOIP on Procurve 2848:

                @dustinb3403 said in Confirming QoS for VOIP on Procurve 2848 - Procurve:

                So it does do 802.1p/Q tagging for VLANs, as well as Layer 3 ToS DSCP

                You mean it can. Have you checked that it's enabled by default? Perhaps this is part of the settings you have to do when you pick what VLAN to put voice on. Of course ML folks all say, you shouldn't bother with a VLAN, waste of time.

                That is the goal, I do not want to configure any additional VLANs, if the phone can pass this information without additional "effort" wonderful.

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                • DustinB3403D
                  DustinB3403
                  last edited by

                  So I found this, which recommends setting QoS by using DSCP priority (forum post first answer).

                  But I have no idea to know how the packets are being tagged with this information.

                  Does this make any sense?

                  Paging @scottalanmiller and @JaredBusch

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                  • JaredBuschJ
                    JaredBusch
                    last edited by

                    Yealink is on by default. Other models I do not know.

                    DustinB3403D 1 Reply Last reply Reply Quote 0
                    • DustinB3403D
                      DustinB3403 @JaredBusch
                      last edited by

                      @jaredbusch So if 802.1p / Layer 3 DSCP is enabled, then I shouldn't have to modify these switches, considering the defaults have DSCP 101110 already enabled.

                      Right?

                      JaredBuschJ 1 Reply Last reply Reply Quote 0
                      • JaredBuschJ
                        JaredBusch @DustinB3403
                        last edited by

                        @dustinb3403 said in Confirming QoS for VOIP on Procurve 2848:

                        @jaredbusch So if 802.1p / Layer 3 DSCP is enabled, then I shouldn't have to modify these switches, considering the defaults have DSCP 101110 already enabled.

                        Right?

                        Phones only do DSCP, while 802.1 is on the switching and routing.

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                        • DustinB3403D
                          DustinB3403
                          last edited by

                          That is the default DSCP settings on one of my switches, assuming that we use Yealink (99.99999% certainty) we should be good, just need to configure our firewall.

                          0_1502721855562_iexplore_2017-08-14_10-43-43.png

                          scottalanmillerS 1 Reply Last reply Reply Quote 0
                          • scottalanmillerS
                            scottalanmiller @DustinB3403
                            last edited by

                            @dustinb3403 said in Confirming QoS for VOIP on Procurve 2848:

                            That is the default DSCP settings on one of my switches, assuming that we use Yealink (99.99999% certainty) we should be good, just need to configure our firewall.

                            0_1502721855562_iexplore_2017-08-14_10-43-43.png

                            As long as nothing else is setting itself above that.

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                            • DustinB3403D
                              DustinB3403
                              last edited by

                              111 000 is set to priority 7 as well, let me look through the entire list.

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                              • DustinB3403D
                                DustinB3403
                                last edited by

                                So there are 3 items with a priority of 7

                                101110
                                111000
                                100110

                                There are 3 items with a priority of 6

                                100010
                                100100
                                110000

                                Should I be looking for any other DSCP codepoints?

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                                • scottalanmillerS
                                  scottalanmiller
                                  last edited by

                                  As long as the switches are honouring priority, you should be fine.

                                  In reality, even if they don't, you should be fine.

                                  DashrenderD 1 Reply Last reply Reply Quote 0
                                  • DustinB3403D
                                    DustinB3403
                                    last edited by

                                    So I know this is going to get me lambasted.

                                    Should I create a custom application type for specific UDP/TCP ports and set a priority there as well? Or should I not bother and see how things perform from the start?

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                                    • DashrenderD
                                      Dashrender @scottalanmiller
                                      last edited by

                                      @scottalanmiller said in Confirming QoS for VOIP on Procurve 2848:

                                      As long as the switches are honouring priority, you should be fine.

                                      In reality, even if they don't, you should be fine.

                                      Right, unless the switches are saturated, and then you have other problems.

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                                      • JaredBuschJ
                                        JaredBusch
                                        last edited by

                                        By default Yealink phones use these DSCP tags.

                                        RTP on 46 and SIP on 26.

                                        A lot of online guide for setting up DSCP tagging use RTP on 48. Just be aware of that.

                                        0_1502723202213_9b3c7e71-cbed-4f08-b1db-2747fd284b1e-image.png

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                                        • DustinB3403D
                                          DustinB3403 @JaredBusch
                                          last edited by DustinB3403

                                          @jaredbusch, thanks. So 26 (011 010) is set for a Priority of 4, 46 (101 110) is set to a priority of 7.

                                          48 (110 000) is set to priority 6.

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                                          • JaredBuschJ
                                            JaredBusch @DustinB3403
                                            last edited by

                                            @dustinb3403 said in Confirming QoS for VOIP on Procurve 2848:

                                            @jaredbusch, thanks. So 26 (011 010) is set for a Priority of 4, 46 (101 110) is set to a priority of 7.

                                            48 (110 000) is set to priority 6.

                                            That should be fine then.

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