Hi Guru of Linux. I am using a Server how a monitoring equipment:

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probe:~ # sar -n DEV 1
Linux 2.6.32.12-0.7-default (lav1)      01/16/2013      _x86_64_

12:52:19 PM     IFACE   rxpck/s   txpck/s    rxkB/s    txkB/s   rxcmp/s   txcmp/s  rxmcst/s
12:52:20 PM        lo     87.00     87.00     46.15     46.15      0.00      0.00      0.00
12:52:20 PM      eth4 163838.00      0.00  32331.13      0.00      0.00      0.00      0.00
12:52:20 PM      eth7 308229.00      0.00 193079.61      0.00      0.00      0.00      0.00
12:52:20 PM      eth5      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:20 PM      eth6      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:20 PM      eth0      3.00      0.00      0.26      0.00      0.00      0.00      0.00
12:52:20 PM      eth1      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:20 PM      eth2      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:20 PM      eth3      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:20 PM eth0.2517      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:20 PM eth0.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:20 PM eth1.2517      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:20 PM eth1.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:20 PM eth2.2517      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:20 PM eth2.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:20 PM eth3.2517      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:20 PM eth3.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:20 PM eth4.2517  82528.00      0.00  15271.60      0.00      0.00      0.00      0.00
12:52:20 PM eth4.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:20 PM eth5.2517      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:20 PM eth5.2518  12533.00      0.00   2277.89      0.00      0.00      0.00      0.00
12:52:20 PM eth6.2517      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:20 PM eth6.2518      1.00      0.00      0.07      0.00      0.00      0.00      1.00
12:52:20 PM eth7.2517 151998.00      0.00  92767.46      0.00      0.00      0.00      0.00
12:52:20 PM eth7.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00

12:52:20 PM     IFACE   rxpck/s   txpck/s    rxkB/s    txkB/s   rxcmp/s   txcmp/s  rxmcst/s
12:52:21 PM        lo    144.00    144.00     78.21     78.21      0.00      0.00      0.00
12:52:21 PM      eth4      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:21 PM      eth7      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:21 PM      eth5  25132.00      0.00   4829.46      0.00      0.00      0.00      0.00
12:52:21 PM      eth6      1.00      0.00      0.08      0.00      0.00      0.00      1.00
12:52:21 PM      eth0      2.00      2.00      0.13      2.54      0.00      0.00      0.00
12:52:21 PM      eth1      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:21 PM      eth2      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:21 PM      eth3      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:21 PM eth0.2517      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:21 PM eth0.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:21 PM eth1.2517      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:21 PM eth1.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:21 PM eth2.2517      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:21 PM eth2.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:21 PM eth3.2517      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:21 PM eth3.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:21 PM eth4.2517  81521.00      0.00  15201.78      0.00      0.00      0.00      1.00
12:52:21 PM eth4.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:21 PM eth5.2517      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:21 PM eth5.2518  11809.00      0.00   2131.78      0.00      0.00      0.00      0.00
12:52:21 PM eth6.2517      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:21 PM eth6.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:21 PM eth7.2517 147471.00      0.00  88237.93      0.00      0.00      0.00      0.00
12:52:21 PM eth7.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00

12:52:21 PM     IFACE   rxpck/s   txpck/s    rxkB/s    txkB/s   rxcmp/s   txcmp/s  rxmcst/s
12:52:22 PM        lo      3.00      3.00      2.03      2.03      0.00      0.00      0.00
12:52:22 PM      eth4 163496.00      0.00  32599.05      0.00      0.00      0.00      1.00
12:52:22 PM      eth7 296820.00      0.00 182314.56      0.00      0.00      0.00      0.00
12:52:22 PM      eth5      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:22 PM      eth6      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:22 PM      eth0      2.00      2.00      0.13      2.54      0.00      0.00      0.00
12:52:22 PM      eth1      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:22 PM      eth2      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:22 PM      eth3      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:22 PM eth0.2517      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:22 PM eth0.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:22 PM eth1.2517      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:22 PM eth1.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:22 PM eth2.2517      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:22 PM eth2.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:22 PM eth3.2517      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:22 PM eth3.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:22 PM eth4.2517  80764.00      0.00  15002.59      0.00      0.00      0.00      0.00
12:52:22 PM eth4.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:22 PM eth5.2517      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:22 PM eth5.2518  12465.00      0.00   2234.42      0.00      0.00      0.00      0.00
12:52:22 PM eth6.2517      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:22 PM eth6.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:22 PM eth7.2517 148826.00      0.00  89501.38      0.00      0.00      0.00      1.00
12:52:22 PM eth7.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00

12:52:22 PM     IFACE   rxpck/s   txpck/s    rxkB/s    txkB/s   rxcmp/s   txcmp/s  rxmcst/s
12:52:23 PM        lo      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:23 PM      eth4      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:23 PM      eth7      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:23 PM      eth5  24659.00      0.00   4853.58      0.00      0.00      0.00      0.00
12:52:23 PM      eth6      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:23 PM      eth0      2.00      2.00      0.13      2.54      0.00      0.00      0.00
12:52:23 PM      eth1      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:23 PM      eth2      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:23 PM      eth3      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:23 PM eth0.2517      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:23 PM eth0.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:23 PM eth1.2517      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:23 PM eth1.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:23 PM eth2.2517      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:23 PM eth2.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:23 PM eth3.2517      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:23 PM eth3.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:23 PM eth4.2517  81628.00      0.00  15352.01      0.00      0.00      0.00      0.00
12:52:23 PM eth4.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:23 PM eth5.2517      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:23 PM eth5.2518  12765.00      0.00   2335.39      0.00      0.00      0.00      0.00
12:52:23 PM eth6.2517      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:23 PM eth6.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00
12:52:23 PM eth7.2517 149436.00      0.00  89991.55      0.00      0.00      0.00      0.00
12:52:23 PM eth7.2518      0.00      0.00      0.00      0.00      0.00      0.00      0.00
^C
probe:~ #
As you can see the problem appear in the eth4, eth7 and eth5. The problem is that in one time appear data and the other not.


This is the driver of my Netwrok Card:

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probe:~ # ethtool -i eth4
driver: ixgbe
version: 3.1.17-NAPI
firmware-version: 0.9-3
bus-info: 0000:11:00.0
probe:~ #
Any guru that could help me please