Interface TenGigabitEthernet 2/0/34 statistics (ifindex 8993701921)Ĭheck for crc errors on esx host: esxcli network nic stats get -n vmnic1 NIC statistics for vmnic1 Packets received: 135817879 Packets sent: 82253912 Bytes received: 156239259329 Bytes sent: 53856798358 Receive packets dropped: 0 Transmit packets dropped: 0 Multicast packets received: 637031 Broadcast packets received: 0 Multicast packets sent: 0 Broadcast packets sent: 0 Total receive errors: 32614 Receive length errors: 1866 Receive over errors: 0 Receive CRC errors: 32596 Receive frame errors: 0 Receive FIFO errors: 0 Receive missed errors: 0 Total transmit errors: 0 Transmit aborted errors: 0 Transmit carrier errors: 0 Transmit FIFO errors: 0 Transmit heartbeat errors: 0 Transmit window errors: 0 If crc errors are found, refresh (rerun) the command every few seconds to see if the crc errors are incrementing. Sw0# show int stats detail int Ten 2/0/34 If MTU config appears to be ok, check for crc errors.įor checking crc errors on a switch, refer to the switch vendor documentation for the appropriate command.

Name PCI Driver Link Speed Duplex MAC Address MTU Description VMware HCIA Distributed Switch 4352 vmnic1,vmnic0 Vmk2 16384 IPv6 fe80::250:56ff:fe6f:e3c9 64 00:50:56:6f:e3:c9 1500 65535 true STATIC, PREFERREDĬheck the MTU setting for the esxcfg-vswitch -lĭVS Name Num Ports Used Ports Configured Ports MTU Uplinks

Reference for more information on this Health Check Test.Ĭheck top-of-rack switch MTU settings per the switch vendor documentation.Ĭheck MTU setting for the node/portgroup referenced in the MTU warning esxcfg-vmknic -l | grep vmk2 Check switch ports and/or esx hosts for crc errors. Check MTU size on top-of-rack switch, and on all vsphere components DVS, vmk(s), vmnics.Ģ.

Vsphere mtu 9000