200-150 · Question #252
Refer to the exhibit. Which statement about the output from SW2 is true?
The correct answer is A. SW2 discovers SW1 as an LLDP neighbor on port Ethl/1. The 'show lldp neighbors' output on SW2 reflects SW2's local perspective, listing devices that SW2 itself has discovered and the local ports through which they are reachable.
Question
Refer to the exhibit. Which statement about the output from SW2 is true?
Exhibit
Options
- ASW2 discovers SW1 as an LLDP neighbor on port Ethl/1.
- BSW1 discovers SW2 as an LLDP neighbor on port Eth1/1.
- CSW2 discovers SW1 as an LLDP neighbor on port Eth1/2
How the community answered
(36 responses)- A94% (34)
- B3% (1)
- C3% (1)
Why each option
The 'show lldp neighbors' output on SW2 reflects SW2's local perspective, listing devices that SW2 itself has discovered and the local ports through which they are reachable.
When 'show lldp neighbors' is run on SW2, the local device is SW2 and the neighbor table shows remote devices discovered by SW2; an entry showing SW1 on port Eth1/1 means SW2's local interface Eth1/1 has received LLDP advertisements from SW1, confirming SW2 is the discovering device.
The output belongs to SW2, not SW1; interpreting it as SW1 discovering SW2 reverses the local and remote device roles shown in the LLDP neighbor table.
The interface column in the LLDP neighbor table output indicates Eth1/1 as the local port where SW1 is discovered, not Eth1/2; selecting Eth1/2 misreads the port field in the exhibit.
Concept tested: Interpreting LLDP neighbor table output and port perspective
Source: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/93x/system-management/guide/b-cisco-nexus-9000-series-nx-os-system-management-configuration-guide-93x/b-cisco-nexus-9000-series-nx-os-system-management-configuration-guide-93x_chapter_0100.html
Topics
Community Discussion
No community discussion yet for this question.