Explain how Datapath Memory-Pool exhaustion on an NSX edge can impact VM's on L2E extended segments regardless of which SDDC the VMs are on.
Mempool usage alerts on L2E Source SDDC's NSX manager
Packet loss on VM's tied to L2E segments
Wavefront showing packet drops due to memory on the Edge
When the Edge datapath's mempool usage is over 85% of capacity, the Edge will trigger a vmwNSXEdgeMpoolUsage event to show in the related logs as well as the NSX Manager.
Example:
1 edge NSX 1895 FABRIC [nsx comp="nsx-edge" subcomp="datapathd.stats(stats9)" level="ERROR" eventId="vmwNSXEdgeMpoolUsage"] {"event_state":85,"event_external_reason":"Edge datapath memory usage is over 85%","event_src_comp_id":"<ID>","event_sources":{"id":"<ID>"}}
NSX Manager Alerts:
If Wavefront service is enabled then you may see below events: