QoS Beginner

[danny9797]

Hello,

I'm new in to QoS. I have some noob questions.

Is QoS free? How do you manage QoS?

The biggest question...does all Cisco routers and switches support QoS?

Thanks

[royalblues]

Quality of Service (QoS) refers to the capability of a network to provide better service to selected network traffic over various technologies, including Frame Relay, Asynchronous Transfer Mode (ATM), Ethernet and 802.1 networks, SONET, and IP-routed networks that may use any or all of these underlying technologies. The primary goal of QoS is to provide priority including dedicated bandwidth, controlled jitter and latency (required by some real-time and interactive traffic), and improved loss characteristics. Also important is making sure that providing priority for one or more flows does not make other flows fail. QoS technologies provide the elemental building blocks that will be used for future business applications in campus, WAN, and service provider networks

All switches and routers support some level of QoS by default, whereas for advance QoS levels we require IOS with better feature sets

http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/qos.htm

QOS solution reference network design

http://www.cisco.com/application/pdf/en/us/guest/netsol/ns432/c649/ccmigration_09186a008049b062.pdf

HTH, rate if it does

Narayan

[MUHAMMAD SHAHEEN]

Hi Narayan,

You have solved my problem. Thank you so much. I was looking for QOS Solution refrence for a while.

Regards

Shaheen

[danny9797]

Thanks a lot

If an IOS upgrade is needed, does Cisco provide it free of download or must it be purchased?

[royalblues]

Danny,

You would require a valid CCO contract with Cisco for downloading IOS

Narayan