That is correct. But it is still a good practice to correct it if anything else is required in other tasks.
Regards, Tyson Scott - CCIE #13513 R&S, Security, and SP Managing Partner / Sr. Instructor - IPexpert, Inc. Mailto: [email protected] Telephone: +1.810.326.1444, ext. 208 Live Assistance, Please visit: www.ipexpert.com/chat eFax: +1.810.454.0130 IPexpert is a premier provider of Self-Study Workbooks, Video on Demand, Audio Tools, Online Hardware Rental and Classroom Training for the Cisco CCIE (R&S, Voice, Security & Service Provider) certification(s) with training locations throughout the United States, Europe, South Asia and Australia. Be sure to visit our online communities at www.ipexpert.com/communities and our public website at www.ipexpert.com <http://www.ipexpert.com/> From: [email protected] [mailto:[email protected]] On Behalf Of Morgan C Sent: Monday, September 20, 2010 7:50 AM To: [email protected] Subject: [OSL | CCIE_RS] 3750 Trust dscp (vol3 lab 10) Hello, Just for clarification : On a 3560, a port in 'mls qos trust dscp' mode will derived his internal dscp from the dscp inside the received packet, so the egress packet (if dscp transparency is not activated) will also contains the dscp value. If this is right I don't understand the solution of task 3.3 in volume3 lab 10 : Ensure that received EF-marked packets have correct marking when they leave the switch. SOlution : mls qos mls qos map cos-dscp 0 8 16 24 32 46 4_856 int f0/1 mls qos trust dscp If we trust dscp there's no need for cos to dscp marking. And only mls qos trust dscp answer to the question. Could you clarify ? Thanks
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