Bonding Interface Instable

Home » CentOS » Bonding Interface Instable
CentOS No Comments

Hi all,

i recently found that some frontend servers (CentOS6) show:

kernel: bonding: bond0: link status definitely up for interface eth2. kernel: bonding: bond0: link status definitely down for interface eth2, disabling it kernel: bonding: bond0: link status definitely up for interface eth2.

On some days frequently and on others none.

But there is no hw failure or similar.

$ cat /sys/devices/virtual/net/bond0/bonding/{mode,arp_validate}
active-backup 1
active 1

$ cat /etc/sysconfig/network-scripts/ifcfg-bond0
DEVICE=bond0
BOOTPROTO=static IPADDR=MYIP
NETMASK=MYMASK
NETWORK=MYNET
BROADCAST=MYCAST
ONBOOT=yes TYPE=Ethernet BONDING_OPTS=”mode=1 arp_intervalP0 arp_validate=1 arp_ip_target=GATEIP,GATE2IP primary=eth0″

$ cat /proc/net/bonding/bond0
Ethernet Channel Bonding Driver: v3.6.0 (September 26, 2009)

Bonding Mode: fault-tolerance (active-backup)
Primary Slave: eth0 (primary_reselect always)
Currently Active Slave: eth0
MII Status: up MII Polling Interval (ms): 0
Up Delay (ms): 0
Down Delay (ms): 0
ARP Polling Interval (ms): 500
ARP IP target/s (n.n.n.n form): GATEIP, GATE2IP

Slave Interface: eth0
MII Status: up Speed: 1000 Mbps Duplex: full Link Failure Count: 31
Permanent HW addr: MACADDR
Slave queue ID: 0

Slave Interface: eth2
MII Status: up Speed: 1000 Mbps Duplex: full Link Failure Count: 1
Permanent HW addr: MACADDR
Slave queue ID: 0

Device module tg3:
$ cat /sys/module/tg3/version
3.124

Any ideas or same experiences out there?

Thanks

LF

LEAVE A COMMENT