Home » Cisco » 642-885 » Which field in the IPv6 header can be used to set the DSCP value?
Which field in the IPv6 header can be used to set the DSCP value?
A. Flow Label
B. Type of Service
C. Traffic Class
D. Precedence
E. EXP
Correct Answer: C
Explanation/Reference:
Explanation:
Traffic Class
The Traffic Class field is an 8 bit field that is used to signify the importance of the data contained within this specific packet. With IPv4, this information was signified with the TOS field and supported both IP precedence and Differentiated Services Code Point (DSCP). The Traffic Class field used with IPv6 supports DSCP solely; this specification uses the first 6 bits to indicate the Per Hop Behavior (PHB) of the contained data; these PHB’s are defined in RFC 2474 and its additions.
