ifconfig data interpretation

William Muriithi william.muriithi-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org
Thu Apr 2 15:47:24 UTC 2009


Morning,

I have noticed that the ifconfig tool is being deprecated and will be
replaced by the ip tool. However, so far I have not been able to find
a way of getting all the information generated by ifconfig from ip
tool. By that I mean details like packets received, packet sent out,
collision statistics and sent/receive errors are impossible to get
from /sbin/ip.  Now, is that a tool limitation or is it me who have
not done my homework well?

Second, I have noticed one details that is not straight forward to
understand as I thought - frame. When I googled, I got the feeling its
a flag raised when the NIC can not detect connectivity. That is not
the case though as none of the network based seem affected. It could
also be the frame is larger than 1500, but I have not seen it in any
other system. It make no sense to assert that only one system is
experiencing giant frames.

That got me thinking that I may actually be misinterpretation what the
word frame mean and therefore the post. Any idea why the frame counter
keep going up?

Link encap:Ethernet  HWaddr 00:14:22:3E:8F:79
          inet addr:172.16.1.139  Bcast:172.16.3.255  Mask:255.255.252.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:37156044 errors:172679 dropped:0 overruns:0 frame:172678
          TX packets:54908637 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:313517308 (298.9 MiB)  TX bytes:2734438868 (2.5 GiB)
          Base address:0xecc0 Memory:fe6e0000-fe700000


- Interesting dmesg information
* e1000: eth0: e1000_watchdog: NIC Link is Up 1000 Mbps Full Duplex
* Intel(R) PRO/1000 Network Driver - version 6.0.54-k2-NAPI

The nic card is:
lspci output
* 06:07.0 Ethernet controller: Intel Corp. 82541GI/PI Gigabit Ethernet
Controller (rev 05)

ethtool output

Settings for eth0:
	Supported ports: [ TP ]
	Supported link modes:   10baseT/Half 10baseT/Full
	                        100baseT/Half 100baseT/Full
	                        1000baseT/Full
	Supports auto-negotiation: Yes
	Advertised link modes:  10baseT/Half 10baseT/Full
	                        100baseT/Half 100baseT/Full
	                        1000baseT/Full
	Advertised auto-negotiation: Yes
	Speed: 1000Mb/s
	Duplex: Full
	Port: Twisted Pair
	PHYAD: 0
	Transceiver: internal
	Auto-negotiation: on
	Supports Wake-on: umbg
	Wake-on: d
	Current message level: 0x00000007 (7)
	Link detected: yes


Regards,

William
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