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Underrun issues

Drew Browning
Level 1
Level 1

So I have an ASA 5540 and I am seeing a ton of underruns.  I found this and thought it was pretty helpful for overruns, but i was looking for a more concrete description of underruns:

Interface overruns, no buffer and underruns often show that the firewall cannot process all the traffic it is receiving on its NIC. Overruns and no buffers indicate that input traffic is too much on a given interface. The interface maintains a receive ring where packets are stored before they are processed by the ASA. If the NIC is receiving traffic faster than the ASA can pull them off the receive ring, the packet will be dropped and either the no buffer or overrun counter will increment. Underruns behavior similarly but deal with the transmit ring instead.

Can someone give me a little more of a detailed answer on underruns please and how to fix it?

Interface GigabitEthernet0/2 "", is up, line protocol is up
Hardware is i82546GB rev03, BW 1000 Mbps, DLY 10 usec
Auto-Duplex(Full-duplex), Auto-Speed(1000 Mbps)
Input flow control is unsupported, output flow control is on
Description: DMZ
Available but not configured via nameif
MAC address 0025.45ce.ad9e, MTU not set
IP address unassigned
341260055 packets input, 237764697259 bytes, 0 no buffer
Received 7438282 broadcasts, 0 runts, 0 giants
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 pause input, 0 resume input
5441785 L2 decode drops
367128772 packets output, 277200381471 bytes, 191816 underruns
1308248 pause output, 1308248 resume output
0 output errors, 0 collisions, 0 interface resets
0 late collisions, 0 deferred
0 input reset drops, 0 output reset drops, 0 tx hangs
input queue (blocks free curr/low): hardware (255/230)
output queue (blocks free curr/low): hardware (252/0)

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