[CentOS] Centos machine sometimes unreachable
Richard Reina
gatorreina at gmail.com
Thu Aug 23 18:45:34 UTC 2012
2012/8/22 Les Mikesell <lesmikesell at gmail.com>
> On Wed, Aug 22, 2012 at 8:01 AM, Richard Reina <gatorreina at gmail.com>
> wrote:
> > I have a simple perl script that every few hours pings the handful of
> > machines on my LAN. Lately I've sometimes been getting
> >
> > ping of 192.168.0.1 succeeded
> > ping of 192.168.0.7 succeeded
> > ping of 192.168.0.5 FAILED
> > ping of 192.168.0.6 succeeded
> > ping of 192.168.0.9 succeeded
> >
> > This machine in question has been running Centos faithfully for about
> six
> > years and no recent changes to it have been made. When I try and ping the
> > machine manually it works. /var/og/messages does not seem irregular.
> Does
> > anyone know know what might be the problem or what else I might check?
> >
>
> What does ethtool say about your duplex setting
Here is the output from ethtool
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: MII
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: g
Wake-on: g
Current message level: 0x00000007 (7)
Link detected: yes
THe switch is a linksys etherfast 3124 that has worked perfectly for 10
years. I don't know anything about it's settings. This is a LAN with about
a dozen machines.
Thanks
More information about the CentOS
mailing list