Hi, guys,
I got the question: One of the ASA interface ( 1G fiber ):
fwcore/sec/act# sh int gi1/0
Interface GigabitEthernet1/0 "users", is up, line protocol is up
Hardware is i82576F rev01, BW 1000 Mbps, DLY 1000 usec
(Full-duplex), 1000 Mbps(1000 Mbps)
Input flow control is unsupported, output flow control is on
Description: users
86173530 packets input, 33896659673 bytes, 0 no buffer
Received 34 broadcasts, 0 runts, 0 giants
.........
129749164 packets output, 129169262455 bytes, 0 underruns
.........
Traffic Statistics for "users":
86173511 packets input, 32096200361 bytes
129749164 packets output, 126747520525 bytes
215421 packets dropped
1 minute input rate 5060 pkts/sec, 3666802 bytes/sec
1 minute output rate 5168 pkts/sec, 3739753 bytes/sec
1 minute drop rate, 9 pkts/sec
5 minute input rate 5055 pkts/sec, 3765713 bytes/sec
5 minute output rate 4944 pkts/sec, 3616803 bytes/sec
5 minute drop rate, 8 pkts/sec
----------------------------------------
GigabitEthernet1/0:
Intel i82576F rev01, port id 9
Subsystem Vendor ID: 0xb20
Major Configuration Parameters
Device Name : en_igb
PCI Bus:Dev.Func : 11:00.00
Num of Transmit Rings : 1
Num of Receive Rings : 1
Max Frame Length : 1518
TX Pre-Fetch Threshold (PTHRESH) : 8
TX Write-Back Threshold (WTHRESH) : 16
TX Host Threshold (HTHRESH) : 1
Soft Reset : 1
Link Status : UP
Link Speed : 1000Auto
General Control Registers:
Device Control (CTRL) : 0x00dc1a41
Device Status (STATUS) : 0x00080783
Extn Device Control (CTRL_EXT) : 0x10dc0c00
MDI Control (MDIC) : 0x10000000
SerDes ANA (SERDESCTL) : 0x80000400
Copper/Fiber Switch Control (CONNSW) : 0x00000600
VLAN Ether Type (VET) : 0x00008100
LED Control (LEDCTL) : 0x07068302
Packet Buffers Control Registers:
Receive Packet Buffer Size (RXPBS) : 64 KBytes
Transmit Packet Buffer Size (RXPBS) : 40 KBytes
Switch Packet Buffer Size (RXPBS) : 20 KBytes
..........................
Transmit Ring [0]:
Control (TXDCTL) : 0x02100108
Base Address (TDBAH/L): 00000000-cd1f9000
Length (TDLEN) : 8192
Num of TX Descriptors : 512
Head/Tail (TDH/TDT) : 214/214
Driver Head/Tail : 214/214
tx_pkts : 992549
tx_bytes : 1106772432
Receive Ring [0]:
Control (RXDCTL) : 0x02010810
Split RxCntrl (SRRCTL): 0x720f8002
Base Address (RDBAH/L): 00000000-cd1fd000
Length (RDLEN) : 8192
Num of RX Descriptors : 512
Head/Tail (RDH/RDT) : 459/458
Driver Head/Tail : 459/458
rx_pkts : 500140
rx_bytes : 172422266
rx_lec : 0
num_rxbufs : 511
1. The interface got around 60Mbps speed, which is low speed utilization compared to 1Gbps interface, what is the reason so many packet dropped ( default QOS configuration ) ?
2. Any way to improve the interface performance ?
Thankx