VOIP & port trunk question

Discussion in 'Cisco' started by terrydoc, Jan 30, 2008.

  1. terrydoc

    terrydoc Guest

    I have two sites connected over an MPLS network. The main telephony
    (Avaya) switch is in SiteA. The remote SiteB has 2 x 50 user offices
    (Office1 & Office2) with a local telephony server. This site has Cisco
    POE switches. I want to have two data VLANs for each of the offices
    (say VLAN10 & VLAN20). All 100 IP phones should be on the same voice
    VLAN (say VLAN220). Is this setup correct:

    switches for 50 user Office1 have data VLAN 10 and Voice VLAN 220;
    trunking port has native VLAN10 and allowed VLAN220

    switches for 50 user Office2 have data VLAN 20 and Voice VLAN 220;
    trunking port has native VLAN20 and allowed VLAN220

    Thanks, Ned
    terrydoc, Jan 30, 2008
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  2. terrydoc

    Thrill5 Guest

    Each site needs to have its own data and voice VLANs. You don't want to
    bridge traffic over an MPLS circuit (especially voice traffic) and bridging
    and routing over the same link is pretty messy. Just setup routing between
    the two, and enable QoS. You will probably need "gold" CAR on your MPLS
    circuit, and make sure your voice traffic is marked in accordance with your
    vendors requirements for "gold" CAR.
    Thrill5, Feb 6, 2008
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