QoS for Voice Traffic

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Feb 28th, 2010
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There are two sites and we are going to implement end to end Qos.

Site1: Avaya IP phones are connected (Users)

Site2: IPT Servers are connected

Bandwidth Requirement is 9.6 Mbps between two sites for Voice traffic.

Below is the topology Detail:

Avaya Phones are connected ----L2--àCisco 3750G ---L2---à Cisco 6509-----L3----->Cisco 7206--------àWAN ---------àCisco 7609-------àCisco 6509-------àCisco 3750G—Access link---------àIPT SERVERS

As per above topology, what will be the configuration for End to End Quality of Service? And what configuration need to apply on Access Switches ports on which  Avaya phones are connected and  the ports on which Core switch are  connected?

And Also what configuration need to apply on Core switches  on both side and what will be configuration on both routers?

Appreciating providing configuration for end to end QOS.

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gogasca Sun, 02/28/2010 - 16:19
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Check Cisco QoS SRND it will give you a better idea where to start

Mark Rigby Mon, 03/01/2010 - 07:17
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I would say that one of the first things you need to accomplish is to find out if your Avaya handsets mark outgoing voice traffic with either DSCP or COS so that you can take steps to classify then prioritize voice traffic at both Layer 2 and Layer 3.


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