
58 Chapter 2: End-to-End QoS: Quality of Service at Layer 3 and Layer 2
This example reserves 56 kbps of bandwidth for the LLQ, which means that, under
congestion, there will also be a policer that limits the VOICE class to 56 kbps. Again, when
applied to an interface, this policy can be verified with the show policy-map interface
command. The use of this command is currently limited to the FlexWAN module.
Classification and Marking at Layer 2
Before the days of VoIP and IP-based video conferencing, Layer 3 packet marking was the
only packet marking that was ever discussed. Seemingly, Layer 3 markings were all that
would ever be needed; the reasoning ...