What is a characteristic of the Pipe model for MPLS QoS?

The correct answer is B. The same QoS policy is applied to all customer traffic on the egress PE. The Pipe model for MPLS QoS separates the QoS marking and handling between the MPLS core and the customer's network: Pipe model characteristic: - The customer's QoS markings (DSCP) are preserved from ingress to egress, and the MPLS core uses its EXP bits for QoS decisions…

MPLS and Segment Routing

Question

Options

AThe MPLS EXP bits are set by the CE
BThe same QoS policy is applied to all customer traffic on the egress PE
CIf the outer EXP is changed it is copied to the DSCP value
DThe DSCP value determines how the packet is forwarded

How the community answered

(40 responses)

A
3% (1)
B
80% (32)
C
5% (2)
D
13% (5)

Explanation

The Pipe model for MPLS QoS separates the QoS marking and handling between the MPLS core and the customer's network: Pipe model characteristic: - The customer's QoS markings (DSCP) are preserved from ingress to egress, and the MPLS core uses its EXP bits for QoS decisions. - The egress PE applies a uniform QoS policy to the traffic without modifying the customer's original DSCP markings. This ensures that the customer's QoS requirements are maintained transparently while allowing the service provider to enforce its QoS policies within the MPLS core.

Topics

#MPLS QoS#Pipe Model#EXP bits#DSCP

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