350-501 MPLS and Segment Routing Practice Question
An MPLS TE tunnel is configured with an explicit path. Which RSVP message is used by the headend to signal the path and carry the Explicit Route Object (ERO) listing the hops?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
PATH
The PATH message is sent downstream from the headend and contains the ERO that specifies the explicit route.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
RESV
Why it's wrong here
RESV is sent back upstream to reserve resources.
- ✗
PATH_TEAR
Why it's wrong here
PATH_TEAR is used to tear down the tunnel.
- ✗
RESV_CONFIRM
Why it's wrong here
Not a standard RSVP-TE message.
- ✓
PATH
Why this is correct
PATH carries the ERO and label request.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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