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Operating Systems Linux Red Hat Interface card link goes down and recovers frequently Post 302923061 by dhanu1985 on Thursday 30th of October 2014 06:37:38 AM
Old 10-30-2014
RedHat Interface card link goes down and recovers frequently

Hi Experts,

I have an issue where the interface card went down for like four times in last one week in redhat linux server. Every time it goes down, it comes back.

Code:
2014 Oct 21 07:22:14 <hostname> [err] kernel: [19088393.545700] nx_nic[pubeth4]: NIC Link is down
2014 Oct 21 07:22:21 <hostname> [err] kernel: [19088400.384068] nx_nic[pubeth4]: NIC Link is up
2014 Oct 21 07:22:32 <hostname> [err] kernel: [19088411.781339] nx_nic[pubeth4]: NIC Link is down

With the above messages, the NIC link goes down and comes up. I wanted to check further if the NIC is faulty.

Please advise on the same. Thank you in advance!!!

Last edited by DukeNuke2; 10-30-2014 at 07:49 AM..
 

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rtw(7D) 							      Devices								   rtw(7D)

NAME
rtw - RealTek 8180L 802.11b Wireless NIC driver DESCRIPTION
The rtw 802.11b wireless NIC driver is a multi-threaded, loadable, clonable, GLDv3-based STREAMS driver supporting RealTek 8180L chipset- based NIC's. CONFIGURATION
The rtw driver performs auto-negotiation to determine the data rate and mode. Supported 802.11b data rates are 1, 2, 5.5 and 11 Mbits/sec. The default is 11. The rtw driver supports only BSS networks (also known as "ap" or "infrastructure" networks) and "open"(or "open-system") or "shared sys- tem" authentication. FILES
/dev/rtw* Special character device. /kernel/drv/rtw 32-bit ELF kernel module (x86). /kernel/drv/amd64/rtw 64-bit ELF kernel module (x86). ATTRIBUTES
See attributes(5) for a description of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Architecture |x86 | +-----------------------------+-----------------------------+ |Availability |SUNWrtw | +-----------------------------+-----------------------------+ |Interface stability |Committed | +-----------------------------+-----------------------------+ SEE ALSO
dladm(1M), wificonfig(1M), attributes(5), gld(7D), dlpi(7P) 802.11 - Wireless LAN Media Access Control and Physical Layer Specification -- IEEE, 2001 SunOS 5.11 12 Jul 2007 rtw(7D)
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