From: Milan Kocian <milon@wq.cz>
To: netdev@vger.kernel.org
Subject: Difference between device statistics from ifconfig and ip -s l l
Date: Wed, 17 Oct 2007 11:27:00 +0200 [thread overview]
Message-ID: <20071017092659.GA16356@wq.cz> (raw)
hello,
see dropped packets, please:
sit:~# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 00:04:23:D6:D5:DE
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:522284892 errors:0 dropped:16800 overruns:0 frame:0
TX packets:506064445 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1405350664 (1.3 GiB) TX bytes:4082649020 (3.8 GiB)
Base address:0xac00 Memory:ff6e0000-ff700000
see via ip l l (here are no dropped packets):
sit:~# ip -s l l dev eth0
2: eth0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc htb qlen 1000
link/ether 00:04:23:d6:d5:de brd ff:ff:ff:ff:ff:ff
RX: bytes packets errors dropped overrun mcast
2494988681 523755694 0 0 0 57458
TX: bytes packets errors dropped carrier collsns
453184821 507470461 0 0 0 0
but see more detailed stats (dropped packet are as missed in RX errors ?!):
sit:~# ip -s -s l l dev eth0
2: eth0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc htb qlen 1000
link/ether 00:04:23:d6:d5:de brd ff:ff:ff:ff:ff:ff
RX: bytes packets errors dropped overrun mcast
2752159866 524110163 0 0 0 57485
RX errors: length crc frame fifo missed
0 0 0 0 16800
TX: bytes packets errors dropped carrier collsns
607359337 507807361 0 0 0 0
TX errors: aborted fifo window heartbeat
0 0 0 0
Is this bug or feature ? From my point of view is somewhere lost any sum.
Or is it driver dependent? Kernel 2.6.23.1 (in 2.6.20.20 is the same behavior),
driver e1000. iproute2-ss070313; net-tools 1.60, ifconfig 1.42 (2001-04-13)
Regards,
--
Milan Kocian
next reply other threads:[~2007-10-17 9:27 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-17 9:27 Milan Kocian [this message]
2007-10-17 9:36 ` Difference between device statistics from ifconfig and ip -s l l Patrick McHardy
2007-10-17 10:13 ` Milan Kocian
2007-10-17 10:35 ` Patrick McHardy
2007-10-17 11:29 ` Milan Kocian
2007-10-17 12:01 ` jamal
2007-10-17 13:42 ` Milan Kocian
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