You are designing a network running both IPv4 and IPv6 to deploy QoS. Which consideration is correct about the QoS for IPv4 and IPv6?
A.
IPv4 and IPv6 traffic types can use queuing mechanisms such as LLQ, PQ, and CQ.
B.
IPv6 packet classification is only available with process switching, whereas IPv4 packet classification is available with both process switching and CEF.
C.
IPv6 and IPv4 traffic types can use a single QoS policy to match both protocols.
D.
Different congestion management mechanisms need to be used for IPv4 and IPv6 traffic types.
QoS queuing mechanisms such as LLQ (Low Latency Queuing), PQ (Priority Queuing), and CQ (Custom Queuing) operate at the interface level and are protocol-independent. Both IPv4 and IPv6 packets can be classified, queued, and scheduled using these mechanisms.
Why other options are incorrect:
B: Modern platforms support classification for IPv6 with hardware-based CEF.
C: Separate class-maps are typically required for IPv4 and IPv6.
D: The same queuing/congestion mechanisms apply to both IPv4 and IPv6.
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