Deploying VOIP and QOS

9,860 pts.
Tags:
Cisco
Cisco Routers
Firewalls
HP switches
PIX
QoS
VoIP
We want to deploy VOIP to our network. We first need to implement QOS how can we do that? We have all HP switches and Cisco routers. The firewall is also a Cisco (PIX).
ASKED: October 19, 2010  3:25 PM
UPDATED: October 30, 2010  8:42 PM

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Hi, KarlG.

As I understand things, the switches only need to support QOS header info to use it for prioritizing traffic. You would define Classes of service based of DSCP (diffserv) or another supported method, and the switches would respect those.

The routers are more of an issue, and the firewall, or any other edge device, is the really important location for QOS prioritization.

Fortunately, Cisco documents things really well.
Here is an official Cisco page for <a href=”http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_tech_note09186a008084de0c.shtml”>QOS policies</a>, and
here is a more “to-the-point” <a href=”https://supportforums.cisco.com/docs/DOC-1574″>forum discussion</a> of putting them into practice.

I hope that helps.

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  • Karl Gechlik
    [...] Have questions about deploying VoIP and QOS? Radyair provided an in-depth explanation and some great [...]
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