Auto QOS

[mightyking]

Hello Experts,

I am using auto QOS in the switch level (3750) and need your help to configure the QOS in the router (3845). We have 2Mb bandwidth on the WAN side and we do video conference quite often. Could you please let me know what would the best QOS config be? Do you guys recommend CRTP?

Thanks,

MK

[dijohn]

Depends on the WAN Link speed?.. Cisco recommends cRTP on slow links [768kbps and less].

Set the bandwidth of the links..and try AUTOQOS.. it usually works well.. After which you can tweak the parameters.

HTH

PS:rate useful posts.!

[dijohn]

Here's a white paper on AutoQos

http://www.cisco.com/en/US/tech/tk543/tk759/technologies_white_paper09186a00801348bc.shtml

[mightyking]

Hi Dijohn,

Thanks for the reply. Can you please send me an example of how to configure the QOS in a 3845 router over a 2Mb link?

Thanks,

MK

[dijohn]

here's the QOS Guide

http://www.cisco.com/en/US/docs/ios/qos/configuration/guide/qos_frhqf_support_ps6441_TSD_Products_Configuration_Guide_Chapter.html#wp1089267

I would say...hardcode the Bandwidth on the interface to 2mbps and do a auto qos setup. Manually add classes/traffic types if needed after wards.

http://www.cisco.com/application/vnd.ms-powerpoint/en/us/guest/tech/tk759/c1482/ccmigration_09186a0080133fd7.ppt

AutoQos will take care of RTP/Voice  Signalling.

Auto Qos for VOIP White paper

http://www.cisco.com/en/US/technologies/tk543/tk879/technologies_white_paper0900aecd800a8561_ps6613_Products_White_Paper.html

Go through them, they will be helpful in deciding to go autoqos or not.

HTH

PS: Rate usegful posts.!

[mightyking]

Thx.....

[dijohn]

If your questions were answered then please mark this post as ANSWERED.

[dijohn]

Here's a link with the Enterprise QOS configuration.

http://www.cisco.com/en/US/docs/solutions/Enterprise/WAN_and_MAN/QoS_SRND/QoS-SRND-Book.html