sysautomation
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ifconfig
Hi
ifconfig command in Linux shows bandwidth usage such has following:
My question is when this is reset? I mean it shows download and upload of 1.1 GB and 2.1 GB but from when? From last reboot, last day or since beginning?
ifconfig command in Linux shows bandwidth usage such has following:
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:18198145 errors:0 dropped:0 overruns:0 frame:0
TX packets:1948701 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1211789095 (1.1 GiB) TX bytes:2354380018 (2.1 GiB)My question is when this is reset? I mean it shows download and upload of 1.1 GB and 2.1 GB but from when? From last reboot, last day or since beginning?
Manfred Bertl
AFIAK, the counter is reset every time you restart the interface.
This is a messy situation, because the counters are kept in the kernel. There are two cases, only one of which is addressable.
If the network interface is built into the kernel, there's nothing that can be done except a reboot.
If the network interface is a loadable module, it's possible to reset the counters without a reboot -- but -- it's messy and takes networking down briefly.
First find the module name for eth0.
Assume that eth0 uses the e1000 module. Write a cronscript to do this little kludge below (hourly, daily, whatever, however often you want the counters reset).
I would not use this on anything other than a home machine. It will take networking down without notice regardless of what the machine is doing.
See also http://askubuntu.com/questions/348038/how-to-reset-ifconfig-counters
If the network interface is built into the kernel, there's nothing that can be done except a reboot.
If the network interface is a loadable module, it's possible to reset the counters without a reboot -- but -- it's messy and takes networking down briefly.
First find the module name for eth0.
ethtool -i eth0Assume that eth0 uses the e1000 module. Write a cronscript to do this little kludge below (hourly, daily, whatever, however often you want the counters reset).
ifconfig eth0 down
modprobe -r e1000
modprobe e1000
ifconfig eth0 upI would not use this on anything other than a home machine. It will take networking down without notice regardless of what the machine is doing.
See also http://askubuntu.com/questions/348038/how-to-reset-ifconfig-counters
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