vSAN Latency on NSX edge VMs with no visible cache/capacity disk /network bandwidth issues
Article ID: 397574
Updated On:
Products
Issue/Introduction
Write latency in the Area Operations graphs shows latency of over 250 ms.
Environment
ESXi 7.0 Update 3
NSX-T 3.1.3.7.4
Cause
The log-lines observed indicate an underlaying issue where Control connection (BFD) was dropped by the physical switch. More inspection at physical switch may be needed.
The Edge logs show the last ARP reply was at 15:51:48. After that, there are no more ARP replies seen in the logs.
syslog.2:135551:2025-04-30T15:50:22.686Z #######.###.##.########.### NSX 5936 SWITCHING [nsx@6876 comp="nsx-edge" subcomp="datapathd" s2comp="arp" level="INFO"] ARP reply received for ###.##.###.### from ##:##:##:##:##:## on lrouter port ########-####-####-####-############
syslog.2:136774:2025-04-30T15:51:22.590Z #######.###.##.########.### NSX 5936 SWITCHING [nsx@6876 comp="nsx-edge" subcomp="datapathd" s2comp="arp" level="INFO"] ARP reply received for ###.##.###.### from ##:##:##:##:##:## on lrouter port ########-####-####-####-############
Resolution
Contact your physical switch vendor for assistance.
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