CCNA R&S version 3 Topic: Quality of Service (QoS) - Trusting Devices

CCNA R&S version 3 Topic: Quality of Service (QoS) - Trusting Devices

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One of the topics on the CCNA R/S version 3 exam is Quality of Service (QoS). This video shows you a specific topic on the 200-125 (CCNA R/S version 3) and 200-105 (ICND2) blueprints, trusting devices.
Cisco route and switch technologies cover a wide range of topics, one of which is Quality of Service (QoS).
However, if you want to learn want to learn more Cisco R/S topics (including topics from ROUTE 300-101, SWITCH 300-115, TSHOOT 300-135, and CCNA 200-125) from Kevin, visit:

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Kevin Wallace, CCIEx2 #7945 (Collaboration and R&S)

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CCNA R&S version 3 Topic: Quality of Service (QoS) - Trusting Devices
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[samuelkimani]

Thank you so much Kevin. You are an excellent trainer. So clear and concise.

[andreslopez]

Mr. Wallace great video as always, ca you please answer one question for me ?. here is the scenario

let's assume that were talking about a layer 2 topology, I go and set the trust boundary at the access layer switch on the connected IP Phone interface for example interface GI1/0/1. I go and configure all the setting demonstrative here on this video. What configuration I most do on the trunk links connecting the two (2) switches access and distribution ?

here's what I think and please correct me if I wrong.

I think I don't have to do anything because when I set my trust boundary at the interface level and if a frame enter the switch from a Cisco IP Phone it trust the marking from it and add the value to the header and then carriers it to the distribution switch.

I understand that the markings get rewrite at layer 3 crossing from the distribution switch to the core or to the rest of the network, I'm just interested to know the configuration on the layer 2 up-link (802.1q) to from the access to the distribution switch.

[PakistanAlgerie]

hi kevin, you are awsome, i love your trainings

[mariomatejka]

Given the configuration used in this example. Would the DSCP of the voice traffic coming from the phone get changed from 46 to 40?

[Hiwot]

Kevin, Thank you so much! Great lecture!

[dailypandas]

Hey Kevin, great video and explanation!
I was wondering... if I have a third party ip phone or a third party softphone installed on my computer and that device does not send cos or dscp marking. How would I set up QoS for its packets to take precedence?
Thank you very much!!

[leogregorio]

hello Kevin, could you send me The links of all your QOS vídeos? o have a trouble with IP PHONES over my wireless controller only and o need to implement QOS for it..