Cisco
300-610 · Question #26
Which protocol prevents fiber failures from causing a Layer 2 loop in a dark fiber DCI?
The correct answer is B. UDLD. UDLD is Uni-directional Link Detection protocol that is used to detect if there is a problem with rx/tx in the fiber strands that may cause switching loop.
Data Center Network Design
Question
Which protocol prevents fiber failures from causing a Layer 2 loop in a dark fiber DCI?
Options
- ABFD
- BUDLD
- CMCP
- DLLDP
How the community answered
(39 responses)- A5% (2)
- B92% (36)
- C3% (1)
Explanation
UDLD is Uni-directional Link Detection protocol that is used to detect if there is a problem with rx/tx in the fiber strands that may cause switching loop.
Topics
#UDLD#Layer 2 loop prevention#DCI#fiber failure
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