Cisco VoIP QoS configuration

Posted on 2010-01-07
Last Modified: 2012-05-08
Regarding voice over ip, do I need to setup qos on my internal network the same as I would do on the WAN routers? I currently have a voice VLAN configured.

interface Vlan212
 description VoIP
 ip address
 ip helper-address

What else do I need to do or am I ok from an internal network perspective?
Question by:dtadmin
    LVL 21

    Expert Comment

    I would use the same QOS settings end to end to assure the proper priority is appled enterprise wide.
    LVL 9

    Expert Comment

    You likely won't need a ton of QoS on your LAN unless you have a lot of unequal links. QoS for voice is usually a must at the WAN edge, but not really within a small to medium LAN.

    Author Comment

    all LAN ports are 100Mbps. I have a 4Gbps etherchannel between my core switch and distribution switch.
    LVL 9

    Accepted Solution

    With those speeds you shouldn't have issues with congestion locally. There could be exceptions if you're running some very high bandwidth applications, but on a normal network it shouldn't be an issue.

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