Thanks Devildoc, My concern is that when doing this configuration I am not comfortable when I find a contradiction since the configuration of the ACL Workaround has a implicit "Trust-Cos" which I suppose will Trust the CoS in ALL THE MOMENTS. In the other side I have the configuration of Conditional Trust, which means that the CoS will be Trusted just when an IP Phone is detected and the rest of the time the CoS will be Untrusted.
Do you notice the contradiction? Don't the ACL Workaround will interfere the correct working of the Conditional Trust , ever trusting the CoS and not just when and Phone is detected ? . I want to find the logic of this Have a nice day, De: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] En nombre de Devildoc Enviado el: 12 June 2008 09:16 Para: OSL CCIE Voice Lab Exam Asunto: Re: [OSL | CCIE_Voice] 6500 QoS / ACL Workaround inConditional Trust Yes, you do. The trusted COS value will not be forwarded to the L3 PFC due to the limitation of the line card for 10/100 ports, so you'll have to apply the ACL workaround to ensure that the COS values are forwarded properly to the PFC for marking. Without the ACL workaround, all COS values will be reset to 0 when get forwarded to the PFC. JD ________________________________ Date: Wed, 11 Jun 2008 17:24:54 -0400 From: [EMAIL PROTECTED] To: ccie_voice@onlinestudylist.com Subject: Re: [OSL | CCIE_Voice] 6500 QoS / ACL Workaround in Conditional Trust Supposing I am using a 10/100 48 ports blade. (non-giga) Does anybody knows if is needed to apply the ACL Workaround for TRUST-COS to the ports configured to Conditional Trust. In example, if I configure conditional trust in the following way; set port qos 3/1-3 cos 0 set port qos 3/1-3 cos-ext 1 set port qos 3/1-3 trust-ext untrust set port qos 3/1-3 trust-device ciscoipphone For the upper config, Is it needed to apply the next ACL Workaround ??, or is it really not necessary when using conditional-trust and will hurt because it will trust-cos all times and not just when the IP phone is detected???? set port qos 3/1-3 vlan-based set qos acl ip TRUST-COS trust-cos any commit qos acl TRUST-COS set qos acl map TRUST-COS 220 Thanks Christian Narvaez Magenta, Chile ________________________________ Enjoy 5 GB of free, password-protected online storage. Get Windows Live SkyDrive. <http://www.windowslive.com/skydrive/overview.html?ocid=TXT_TAGLM_WL_Ref resh_skydrive_062008>
