0 Replies Latest reply on May 19, 2016 11:00 AM by heklager

    QOS with Netvanta 3120 and Netvanta 7100

    heklager New Member

      I have a branch office connected to the main office with an Netvanta 3120 access router.

      We have a Netvanta 7100 at the main office.

       

      The phone used at the branch office are Polycom VVX300.

       

      The connexion speed specified by the provider for the branch office is a PPPOE connection at 15/10 (15mb download, 10mb upload).

       

      I applied some kind of a QoS to the WAN interface as per Adtran documentation found on this forum.

       

      However, the VoIP call quality degrades a lot when there's a large file download at the same time.

      I started a 1gb download test file and we can't have a normal conversation from the point.

       

      Here is my basic QoS setup :

       

      qos map VoIP 10

        match dscp 26 46

        priority unlimited  (note : 2048 was the previous value)

      !

      vlan 1

        name "Default"

      !

      vlan 2

        name "voip"

      !

      interface loop 1

        ip address 10.10.11.1 255.255.255.255

        ip mtu 1500

        no shutdown

      !

      interface eth 0/1

        description WAN

        ip address dhcp

        ip access-policy Public

        ip crypto map VPN

        dynamic-dns dyndns blablabla.dynalias.org mcthon encrypted 1b1d6f862121d2018527972ec70d4b02290f

        qos-policy out VoIP

        no awcp

        no shutdown

        no lldp send-and-receive

      !

      interface switchport 0/1

        no shutdown

        switchport mode trunk

      !

      interface switchport 0/2

        no shutdown

        switchport mode trunk

      !

      interface switchport 0/3

        no shutdown

        switchport mode trunk

      !

      interface switchport 0/4

        no shutdown

        switchport mode trunk

      !

      interface vlan 1

        ip address 172.16.11.254 255.255.255.0

        ip access-policy Private

        no shutdown

      !

      interface vlan 2

        ip address 10.10.11.254 255.255.255.0

        ip mtu 1500

        ip access-policy Private

        no rtp quality-monitoring

        media-gateway ip primary

        no awcp

        no shutdown

      !

      interface ppp 1

        ip address negotiated

        ip mtu 1500

        ip access-policy Public

        ip crypto map VPN

        no fair-queue

        pppoe service-name bellnet.ca

        ppp pap sent-username blablabla@bellnet.ca password encrypted 363e94091cf3f1f71e81651decec5e91b7ef

        no shutdown

        cross-connect 1 eth 0/1 ppp 1

       

       

      Would you please help me, thanks in advance !