Discover the additional feature supported by MPLS DiffServ tunneling in the Cisco SPCOR 350-501 certification exam. Learn how matching EXP and DSCP values enhances QoS in MPLS networks.
Table of Contents
Question
Which additional feature does MPLS DiffServ tunneling support?
A. matching EXP and DSCP values
B. PHB layer management
C. using GRE tunnels to hide markings
D. interaction between MPLS and IGP
Answer
A. matching EXP and DSCP values
Explanation
MPLS DiffServ tunneling supports the additional feature of matching EXP (Experimental) and DSCP (Differentiated Services Code Point) values. This feature allows for a more granular and flexible approach to Quality of Service (QoS) in MPLS networks.
By matching EXP and DSCP values, network administrators can:
- Preserve the original QoS markings of packets entering the MPLS network.
- Map the DSCP values of incoming packets to the appropriate EXP values in the MPLS header.
- Maintain consistent QoS treatment across the MPLS network based on the EXP values.
- Ensure that the original DSCP values are restored when packets exit the MPLS network.
This feature enables seamless interoperability between IP and MPLS networks, allowing for end-to-end QoS across different network domains. It also provides a mechanism for implementing differentiated services and traffic prioritization within the MPLS network.
Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) 350-501 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) 350-501 exam and earn Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) 350-501 certification.