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BugZero updated this defect 45 days ago.
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VMware | 97464
HCX - NE appliance VM service pipeline down/up event
Last update date:
4/4/2024
Affected products:
HCX
Affected releases:
No affected releases provided.
Fixed releases:
No fixed releases provided.
Description:
Symptoms
An HCX Network Extension (NE) appliance VM may experience intermittent service pipeline flap events where the service pipeline is reported as down and then reported as up again during the next poling cycle 1 minute later. Another key signature is that during the service pipe down event both the transport (fou) tunnel and IPsec tunnel that the service pipe line is carried inside of are both reported as up between the onPrem and cloud NE appliance pair The NE service pipeline involves IP connectivity between the onPrem NE appliance VM and cloud NE appliance VM pair The NE service pipeline down event is typical only seen on one of the NE appliances in a given NE appliance pair at either the onPrem or cloud site The NE service pipeline events can be observed either on the HCX Manager UI or vCenter UI at the following locations: HCX Manager UI >> Administration >> Alerts vCenter UI >> [select NE VM] >> Monitor >> Tasks and Events >> Events
Purpose
To document a known issue
Cause
The poling for NE service pipeline availability between an onPrem and cloud NE appliance pair is currently too aggressive. If only a single probe is lost or delayed it results in a service pipeline down event For comparison, the IPsec tunnel requires 3 consecutive failed probes to report the IPsec tunnel as down in order to avoid false positives due to temporary CPU or network utilization spikes or data loss in the network path between sites NOTE - this issue does not apply to the HCX Interconnect (IX) appliance VM that is used for migrations. The service pipeline for an IX appliance has a different use case which is to connect to the local WAN Optimization (WAN-Opt) appliance VM at the same site
Impact / Risks
There is no impact to NE operations or network traffic
Resolution
This issue will be resolved in a future software release
Workaround
None
