Cisco
300-415 · Question #268
300-415 Question #268: Real Exam Question with Answer & Explanation
The correct answer is C: Recover the vManage controller that is down in a high availability cluster.. The exhibit shows a WAN Edge device attempting to connect to multiple vManage instances, one of which appears to be down based on the duplicated system IP and multiple connection attempts, indicating a vManage HA cluster issue.
Controller Deployment
Question
Refer to the exhibit. An engineer is troubleshooting a control connection issue on a WAN Edge that device shows socket errors. The packet capture shows some ICMP packets dropped between the two devices. Which action resolves the issue?
PEER TYPE PEER PROTOCOL PEER SYSTEM IP PEER ID SITE ID DOMAIN ID PEER PRIVATE IP PEER PRIVATE PORT
vsmart dtls 10 1.1.8 1 0 1.1.1.1 12447
vmanage dtls 10.1.1.7 1 1 2.2.2.2 12647
vmanage dtls 10.1.1.7 1 1 2.2.2.2 12867
LOCAL COLOR STATE ERROR ERROR UNIT
gold up LISFD NOERRR 45
gold up LISFD NOERRR 70
gold up LISFD NOERRR 69
Options
- ARemove IP duplication in the network and configure a unique IP address.
- BRecover vBond or wait for the controller to reload, which could be caused by a reset.
- CRecover the vManage controller that is down in a high availability cluster.
- DChange the system IP or restart the WAN Edge if the system IP is changed.
Explanation
The exhibit shows a WAN Edge device attempting to connect to multiple vManage instances, one of which appears to be down based on the duplicated system IP and multiple connection attempts, indicating a vManage HA cluster issue.
Common mistakes.
- A. While IP duplication can cause issues, the duplicated entry for vManage with the same system IP but different ports is indicative of a vManage HA setup, not necessarily an accidental IP duplication that needs removing.
- B. The exhibit does not directly indicate an issue with vBond, and recovering vBond would not address a problem specific to vManage connections if vBond itself is operational.
- D. Changing the system IP of the WAN Edge or restarting it might temporarily alleviate some issues but would not fix a fundamental problem with a vManage controller in an HA cluster.
Concept tested. Troubleshooting SD-WAN control connections, vManage HA
Topics
#SD-WAN Control Plane#vManage High Availability#Troubleshooting#WAN Edge Connectivity
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