An engineer must configure the SD-WAN Edge router to identify DSCP 26 traffic coming from the router’s local site and then change the DSCP value to DSCP 18 before sending it over to the SD-WAN fabric. What are the two ways to create the required configuration? (Choose two.)
To configure an SD-WAN Edge router to identify DSCP 26 traffic and change it to DSCP 18, the appropriate methods involve QoS and Access Control List policies. QoS policies allow for the rewriting of DSCP values to manage bandwidth and traffic prioritization effectively. Access Control List policies enable defining specific traffic rules to apply such changes at the Edge router level. Route policies focus on controlling route information rather than DSCP values, while data policies typically apply to centralized configurations, which is not applicable here.
C, D, and E can all do this with Data policies, but the question says configure the Edge Router, so it has to be a Localized policy, eliminating E.
[A] & [C] is correct due to being a localized specific policy!
route policy is a control policy not data so it won't do affect qos in any way. It is C and D
mmmm As Zamochit say, QoS Map only permit to define the BW , buffer, burst ,Scheduling type, drop type and forwarding class. D and E it seems correct.
Please disregard the above, a rare oversight on my behalf, after further coverage, the answers are [C] & [D] Credit to @menna_nasr16 on the validity! Reference:- https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/qos/ios-xe-17/qos-book-xe/forwarding-qos.html#c_Forwarding_and_QoS_Overview_12257.xml
CD correct
D AND E. I am on vmanage on live and add QoS map is not permitting to rewrite DSCP, is only related to define the BW , buffer, burst ,Scheduling type, drop type and forwarding class. D is permitting it , and also E (but i am agree that the question was saying the edge router, so, it seems not globaly, but , like QOS MAP it not permitting it, then D and E for me.)