FC5 Bonding problem

[Dimitar Dragoev]

Hi

I'm trying to setup network bonding active/backup linked to two switches.
Below are my configuration files:

 

/etc/modprobe.conf

alias bond0 bonding

options bond0 mode=1 arp_interval=1000 arp_ip_target=192.168.000.161
primary=eth0

 

/etc/sysconfig/network-scripts/ifcfg-bond0

DEVICE=bond0

IPADDR=192.168.0.164

NETWORK=192.168.0.160

NETMASK=255.255.255.224

USERCTL=no

BOOTPROTO=none

ONBOOT=yes

 

/etc/sysconfig/network-scripts/ifcfg-eth0

# Broadcom Corporation NetXtreme BCM5704 Gigabit Ethernet

DEVICE=eth0

USERCTL=no

ONBOOT=yes

MASTER=bond0

SLAVE=yes

BOOTPROTO=none

ETHTOOL_OPTS="speed 100 duplex full autoneg off"

 

ETH1 almost same configuration.

 

Now some outputs:

Ethernet Channel Bonding Driver: v3.0.3 (March 23, 2006)

 

Bonding Mode: fault-tolerance (active-backup)

Primary Slave: eth0

Currently Active Slave: eth0

MII Status: up

MII Polling Interval (ms): 0

Up Delay (ms): 0

Down Delay (ms): 0

ARP Polling Interval (ms): 1000

ARP IP target/s (n.n.n.n form): 192.168.0.161

 

Slave Interface: eth0

MII Status: up

Link Failure Count: 2

Permanent HW addr: 00:0d:60:14:a7:a6

 

Slave Interface: eth1

MII Status: up

Link Failure Count: 11

Permanent HW addr: 00:0d:60:14:a7:a7

 

 

bond0     Link encap:Ethernet  HWaddr 00:0D:60:14:A7:A6

          inet addr:192.168.0.164  Bcast:192.168.0.191  Mask:255.255.255.224

          inet6 addr: fe80::20d:60ff:fe14:a7a6/64 Scope:Link

          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1

          RX packets:111363 errors:0 dropped:0 overruns:0 frame:0

          TX packets:44126 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:10541104 (10.0 MiB)  TX bytes:4321353 (4.1 MiB)

 

eth0      Link encap:Ethernet  HWaddr 00:0D:60:14:A7:A6

          inet6 addr: fe80::20d:60ff:fe14:a7a6/64 Scope:Link

          UP BROADCAST RUNNING SLAVE MULTICAST  MTU:1500  Metric:1

          RX packets:66381 errors:0 dropped:0 overruns:0 frame:0

          TX packets:43098 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:6591933 (6.2 MiB)  TX bytes:3847632 (3.6 MiB)

          Interrupt:185

 

eth1      Link encap:Ethernet  HWaddr 00:0D:60:14:A7:A6

          inet6 addr: fe80::20d:60ff:fe14:a7a6/64 Scope:Link

          UP BROADCAST RUNNING SLAVE MULTICAST  MTU:1500  Metric:1

          RX packets:44982 errors:0 dropped:0 overruns:0 frame:0

          TX packets:1028 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:3949171 (3.7 MiB)  TX bytes:473721 (462.6 KiB)

          Interrupt:193

 

 

 

Now here is my problem:

When I physically disconnect eth0 everything works fine and all traffic flow
via eth1

Second case eth0 has link up but not have access to default gateway
192.168.0.161 (for example access list or switch failure) eth0 goes down and
eth1 which is ok try's to go up but w/o cusses. In the message log I can see
only this:

bonding: bond0: backup interface eth1 is now down

bonding: bond0: backup interface eth1 is now up

bonding: bond0: backup interface eth1 is now down

bonding: bond0: backup interface eth1 is now up

bonding: bond0: backup interface eth1 is now down

bonding: bond0: backup interface eth1 is now up

 

However exactly same setup works fine with REL 4.2

 

I suppose this can be a bug in FC5?

 

 

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