mediumMultiple Choice
300-410 Practice Question: Runs the following command on Router P1: P1# show…
A network engineer runs the following command on Router P1:
P1# show mpls ldp neighbor
Peer LDP Ident: 10.0.0.2:0, Local LDP Ident: 10.0.0.1:0 TCP connection: 10.0.0.2.646 - 10.0.0.1.48632 State: Oper, Msgs sent/rcvd: 120/118, Downstream Up time: 00:12:34 LDP discovery sources: GigabitEthernet0/0, Src IP addr: 10.1.1.2 Addresses bound to peer LDP Ident:
10.0.0.2 192.168.1.1
Based on this output, which statement is correct?
⚠ Common exam trap
The trap here is that candidates see 'Downstream' and assume it means the session is down, when it actually refers to the direction of label binding advertisement (downstream label distribution).
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
✓
The LDP session is up and functioning correctly.
The output shows 'State: Oper', which indicates the LDP session is in the Operational state — the normal, fully-established state for an LDP session. The TCP connection is present (10.0.0.2.646 - 10.0.0.1.48632), messages are being exchanged (120 sent / 118 received), and the uptime of 00:12:34 confirms the session has been stable. All of these indicators confirm the LDP session is up and functioning correctly.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The LDP session is down.
Why it's wrong here
State: Oper confirms the session is operational, with TCP established and messages exchanged. It is tempting because LDP troubleshooting often starts by checking session state, and this statement would be correct if the state showed Initialised, Idle or NonExistent instead of Oper.
- ✓
The LDP session is up and functioning correctly.
Why this is correct
The session shows State: Oper with 120 messages sent and 118 received, confirming the TCP connection is established and label advertisements are flowing. Oper state with incrementing message counters indicates the LDP session between the peers is up and functioning.
- ✗
The router is not receiving label bindings from the neighbor.
Why it's wrong here
The output shows Msgs sent/rcvd 120/118 and Downstream, indicating label bindings are being exchanged successfully. It is tempting because a Downstream entry can be misread as a fault, but Downstream here describes the label distribution mode, and it would be correct only if counters stalled or no Downstream appeared.
- ✗
The LDP router ID is misconfigured.
Why it's wrong here
The router IDs 10.0.0.1:0 and 10.0.0.2:0 are distinct and consistent with the bound addresses, so no misconfiguration is evident. It is tempting because LDP identifiers must be unique, and this statement would be correct if both peers advertised the same identifier.
Visual reference
Go deeper
Related to this question
Learn chapter
ACL-Based Traffic Filtering and Policy-Based Routing
Key term
MPLS Label Distribution
MPLS Label Distribution is the process by which routers exchange labels that tell them how to forward packets across a network without looking at the IP address each time.
Key term
LDP Protocol
LDP, or Label Distribution Protocol, is a protocol that routers use to automatically exchange labels that enable MPLS (Multiprotocol Label Switching) to create fast, efficient paths for data packets across a network.
About these practice questions
Courseiva writes every 300-410 question from scratch — 1,401 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Cisco exam blueprint
This 300-410 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 300-410 exam.