Which additional feature does MPLS DiffServ tunneling support?
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A. B. C. D.B.
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_te_diffserv/configuration/15-mt/mp-te-diffserv-15-mt-book/mp-diffserv-tun-mode.htmlMPLS DiffServ tunneling supports the additional feature of matching EXP and DSCP values.
MPLS (Multiprotocol Label Switching) is a protocol used to forward traffic between network nodes by assigning a label to each packet. DiffServ (Differentiated Services) is a method for providing quality of service (QoS) in IP networks by prioritizing traffic based on its classification.
MPLS DiffServ tunneling is a technique used to provide QoS for traffic that is carried over an MPLS network. This technique involves the use of MPLS tunnels, which are virtual paths through the network that are established between two endpoints. These tunnels are used to carry traffic between the endpoints while preserving the QoS requirements of the traffic.
One of the key features of MPLS DiffServ tunneling is the ability to match the EXP (Experimental) and DSCP (Differentiated Services Code Point) values of the traffic being carried. These values are used to classify the traffic and determine its QoS requirements. By matching these values, the MPLS network can ensure that the traffic is forwarded with the appropriate QoS treatment.
PHB (Per-Hop Behavior) layer management is not an additional feature supported by MPLS DiffServ tunneling. PHB refers to the way in which packets are treated at each hop in the network, and it is an essential part of the DiffServ QoS model. However, MPLS DiffServ tunneling does not provide any additional management capabilities for PHBs.
Using GRE (Generic Routing Encapsulation) tunnels to hide markings is also not an additional feature supported by MPLS DiffServ tunneling. GRE tunnels are a method for encapsulating packets within other packets, and they can be used to hide the original markings of the packet. However, this is not a feature that is specific to MPLS DiffServ tunneling.
Interaction between MPLS and IGP (Interior Gateway Protocol) is not an additional feature supported by MPLS DiffServ tunneling either. IGP is a routing protocol used to exchange routing information within an autonomous system (AS). While MPLS can be used in conjunction with IGP to provide traffic engineering capabilities, this is not a feature that is specific to MPLS DiffServ tunneling.