eth0 errors +WARNINGs: packets is + outside range

I got this error messages from munin monitoring service and following was the error messages :

=========
eth0 errors
WARNINGs: packets is 1.52 (outside range [:1]).
=========

So, my basic concept is either eth0 is being overloaded or isn't compatible with kernel or OS. So, I checked the settings of the eth0 and RX(receive) and TX(transmit) packet errors and I found that there is error at RX. I have pasted the results here.

========
root@server [/proc/net]#ethtool eth0
eth0 Link encap:Ethernet HWaddr 00:22:19:7A:7D:96
inet addr:178.250.55.14 Bcast:178.250.55.127
Mask:255.255.255.128
inet6 addr: fe80::222:19ff:fe7a:7d96/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:162432463 errors:3770202 dropped:0 overruns:0
frame:3770202
TX packets:258975594 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2965541413 (2.7 GiB) TX bytes:3157382941 (2.9 GiB)
Interrupt:169 Memory:f8000000-f8012800
root@server [/proc/net]#
========

You can use other commands to check the continuous traffic statistics of the card like :

-----------------
root@server [~]# watch -n 1 cat /proc/net/dev
-----------------
root@server [~]# sar -n DEV|more
-----------------
root@server [~]# netstat -plan --interfaces=eth0
-----------------

I contacted the owner of the server and he assured me that the maximum speed of the NIC is 1GB/sec. So, I increased it using the following command and that fixed the notification error messages:

==================
root@server [~]#ethtool -s eth0 speed 1000 duplex full
==================
By : blog.snapshotit.com