An engineer must extend Layer 2 between two campus sites connected through an MPLS backbone that encapsulates Layer 2 and Layer 3 data. Which action must the engineer perform on the routers to accomplish this task?
Answer :
A. Configure QoS for MPLS and E-ACCESS: This involves quality of service settings and is not directly related to extending Layer 2 over MPLS.
B. Configure a EtherChannel for E-LAN: EtherChannel is used for bundling multiple physical links into a single logical link, not for extending Layer 2 across an MPLS backbone.
C. Configure a pseudowire for E-LINE: This is the correct method. A pseudowire provides a virtual point-to-point connection over an MPLS network, supporting Layer 2 extension.
D. Configure Cisco MPLS TE for use with E-TREE: MPLS Traffic Engineering (TE) is used for optimizing the path selection in an MPLS network, and E-TREE is a different service type. This is not the correct action for extending Layer 2 between two sites.
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8 months, 3 weeks ago