Duplicating MAC linux or net?


 
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Old 10-15-2010
Duplicating MAC linux or net?

hi guys

I have a IBM eServer BladeCenter HS12 with Linux Red Hat 5.4 installed on it, it is using Bonding.

ifcfg-bond0
Code:
DEVICE=bond0
BOOTPROTO=none
ONBOOT=yes
TYPE=Ethernet
IPADDR=x.x.x.x
NETMASK=x.x.x.x
GATEWAY=x.x.x.x
USERCTL=no
IPV6INIT=no
PEERDNS=no
BONDING_OPTS="miimon=80 mode=1"

cat /etc/modprobe.conf
Code:
.....
alias bond0 bonding

that bond0 uses 4 NICs as slaves
eth0 - eth1 - eth2 - eth3

modprobe.conf
alias bond0 bonding

Networking guys say that my server is creating the log below every 5 minutes or so
Code:
%SW_MATM-4-MACFLAP_NOTIF: Host 0021.5e1f.1e1c in vlan 2 is flapping between port Po14 and port Po13

BTW it was working fine and all of a sudden I got this
what could be causing this?
what to check on linux logs? I really don't see anything on messages.

is it a linux bonding o networking issue?

thanks a lot

Last edited by karlochacon; 10-15-2010 at 06:48 PM..
 
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