In an end-to end Layer 2 service, which technology provides the capability to detect, verify, isolate, and report faults across a provider network?
A. BFD
B. CFM
C. UDLD
D. carrier detect
In an end-to end Layer 2 service, which technology provides the capability to detect, verify, isolate, and report faults across a provider network?
A. BFD
B. CFM
C. UDLD
D. carrier detect