Download your favorite Linux distribution at LQ ISO.
Go Back > Forums > Linux Forums > Linux - Networking
User Name
Linux - Networking This forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.


  Search this Thread
Old 11-04-2009, 06:57 AM   #1
LQ Newbie
Registered: Sep 2007
Location: New Delhi
Distribution: Ubuntu, SUSE, RedHat
Posts: 15

Rep: Reputation: 0
Failed to bring up <Interface>

Hi there,

My Dell PE 1950 Server have 2 NICs and two is currently connected.
All have bnx2 dirvers. While checking with ifconfig -a, shows eth2 with following out put

eth2 Link encap:Ethernet HWaddr 00:10:18:39:3B:E6
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:169 Memory:d0000000-d0012100

However, if I set an IPADDRESS and related parameters in the ifcfg-eth2 and do "ifup eth2"; the system returns

[root@web1 network-scripts]# ifup eth2
SIOCSIFFLAGS: Device or resource busy
Failed to bring up eth2.

(dmesg shows the following output)

[root@web1 network-scripts]# dmesg | grep eth2
eth2: Broadcom NetXtreme II BCM5708 1000Base-T (B2) PCI-X 64-bit 133MHz found at mem d0000000, IRQ 169, node addr 001018393be6
bnx2: eth2: using MSI
ADDRCONF(NETDEV_UP): eth2: link is not ready

How can I debug this issue?. Any pointers are appreciated.

Old 11-04-2009, 08:48 AM   #2
LQ Guru
Registered: May 2005
Location: Atlanta Georgia USA
Distribution: Redhat (RHEL), CentOS, Fedora, Debian, FreeBSD, HP-UX, Solaris, SCO
Posts: 6,274
Blog Entries: 10

Rep: Reputation: 847Reputation: 847Reputation: 847Reputation: 847Reputation: 847Reputation: 847Reputation: 847
It's telling you link is not ready meaning you don't have a cable plugged into it or the cable is not connected to anything live (e.g. a switch).

You can run ethtool eth2 to get more information on it.

I'm a bit confused though. You say you only have two interfaces - those would typically be eth0 and eth1. Where is eth2 coming from?

If you have a live connection on one interface then moving the cable to the other interface should help you verify whether the cable is the issue or the interface itself.


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Bring up one interface at boot darkarcon2015 Fedora 6 12-17-2006 01:23 AM
What does ifup do to bring up an interface? crazyjimbo Linux - Networking 1 07-04-2006 02:00 AM
Failed to bring up ethernet interface sparks_lu Linux - Networking 5 03-27-2005 11:57 AM
pppd: how to bring up an interface? J_Szucs Linux - Networking 2 08-08-2004 09:02 AM
couldn't bring up interface eth0 mikez Linux - Networking 9 02-28-2002 01:02 PM

All times are GMT -5. The time now is 08:30 AM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration