You can use the vlan stat command to display and view statistics of all VLANs configured on a network interface.
The following example displays the statistics of all VLANs on a storage system named toaster:
toaster> vlan stat e4
Vlan Physical Interface: e4 (5 hours, 50 minutes, 38 seconds) --
Vlan IDs: 3,5
GVRP: enabled
RECEIVE STATISTICS
Total frames: 0 | Total bytes: 0 | Multi/broadcast: 0
Untag drops: 0 | Vlan tag drops: 0
TRANSMIT STATISTICS
Total frames: 8 | Total bytes: 368
Vlan Interface: e4-3 (0 hours, 20 minutes, 45 seconds) --
ID: 3 MAC Address: 00:90:27:5c:58:14