entstat and Interrupts?

What does the "Interrupts" mean when I run entstat -d?

Everything looks good except for that.

TIA

# entstat -d en0
-------------------------------------------------------------
ETHERNET STATISTICS (en0) :
Device Type: 2-Port 10/100/1000 Base-TX PCI-X Adapter (14108902)
Hardware Address: 00:09:6b:6b:df:84
Elapsed Time: 5 days 10 hours 6 minutes 51 seconds

Transmit Statistics: Receive Statistics:
-------------------- -------------------
Packets: 8869761 Packets: 5879068
Bytes: 662716063 Bytes: 359950930
Interrupts: 0 Interrupts: 5877451
Transmit Errors: 0 Receive Errors: 0
Packets Dropped: 0 Packets Dropped: 0
Bad Packets: 0
Max Packets on S/W Transmit Queue: 16
S/W Transmit Queue Overflow: 0
Current S/W+H/W Transmit Queue Length: 1

Elapsed Time: 5 days 10 hours 6 minutes 50 seconds
Broadcast Packets: 378 Broadcast Packets: 3691
Multicast Packets: 0 Multicast Packets: 0
No Carrier Sense: 0 CRC Errors: 0
DMA Underrun: 0 DMA Overrun: 0
Lost CTS Errors: 0 Alignment Errors: 0
Max Collision Errors: 0 No Resource Errors: 0
Late Collision Errors: 0 Receive Collision Errors: 0
Deferred: 0 Packet Too Short Errors: 0
SQE Test: 0 Packet Too Long Errors: 0
Timeout Errors: 0 Packets Discarded by Adapter:
0
Single Collision Count: 0 Receiver Start Count: 0
Multiple Collision Count: 0
Current HW Transmit Queue Length: 1

General Statistics:
-------------------
No mbuf Errors: 0
Adapter Reset Count: 0
Adapter Data Rate: 200
Driver Flags: Up Broadcast Running
Simplex 64BitSupport ChecksumOffload
PrivateSegment LargeSend DataRateSet

2-Port 10/100/1000 Base-TX PCI-X Adapter (14108902) Specific Statistics:
------------------------------------------------------------------------
Link Status : Up
Media Speed Selected: Auto negotiation
Media Speed Running: 100 Mbps Full Duplex
PCI Mode: PCI-X (100-133)
PCI Bus Width: 64-bit
Latency Timer: 144
Cache Line Size: 128
Jumbo Frames: Disabled
TCP Segmentation Offload: Enabled
TCP Segmentation Offload Packets Transmitted: 18372
TCP Segmentation Offload Packet Errors: 0
Transmit and Receive Flow Control Status: Disabled
Transmit and Receive Flow Control Threshold (High): 45056
Transmit and Receive Flow Control Threshold (Low): 24576
Transmit and Receive Storage Allocation (TX/RX): 16/48

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