CentOS - Jun 2006 - HP DL360, tg3 driver, bonding and link flapping

Hi *,

I'm running into a problem configuring bonding on an HP DL 360 G4p,  
running 4.3 + tg3 driver version 3.43f.  I'm connecting eth0 and eth1  
to a Cisco 2948 (CatOS 8.1(3)) and receiving flapping notices.  The  
ethernet address is that of the primary interface.  I have tried  
several different modes, including balance-rr (0), active-backup (1),  
and balance-alb (6).  All have the same problem.  More detailed info  
follows.

2.6.9-34.ELsmp #1 SMP Wed Mar 8 00:27:03 CST 2006 i686 i686 i386 GNU/ 
Linux

[root at centos-test ~]# cat /etc/sysconfig/network-scripts/ifcfg-bond0
DEVICE=bond0
IPADDR=192.168.100.71
NETMASK=255.255.255.0
NETWORK=192.168.100.0
BROADCAST=192.168.100.255
GATEWAY=192.168.100.1
ONBOOT=yes
BOOTPROTO=none
USERCTL=no

[root at centos-test ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
USERCTL=no
ONBOOT=yes
MASTER=bond0
SLAVE=yes
BOOTPROTO=none

[root at centos-test ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth1
DEVICE=eth1
USERCTL=no
ONBOOT=yes
MASTER=bond0
SLAVE=yes
BOOTPROTO=none

[root at centos-test~]# cat /etc/modprobe.conf
alias eth0 tg3
alias eth1 tg3
alias bond0 bonding
options bond0 mode=0 miimon=100
alias scsi_hostadapter cciss
alias usb-controller ohci-hcd

[root at centos-test ~]# modinfo tg3
filename:       /lib/modules/2.6.9-34.ELsmp/kernel/drivers/net/tg3.ko
author:         David S. Miller (davem at redhat.com) and Jeff Garzik  
(jgarzik at pobox.com)
description:    Broadcom Tigon3 ethernet driver
license:        GPL
version:        3.43f 7AC5B2FE640CA3E42CEB7C1
parm:           tg3_debug:Tigon3 bitmapped debugging message enable  
value
vermagic:       2.6.9-34.ELsmp SMP 686 REGPARM 4KSTACKS gcc-3.4

Port  Name               Status     Vlan       Level  Duplex Speed Type
----- ------------------ ---------- ---------- ------ ------ -----  
------------
2/11 Port 11            connected  256        normal a-full a-100  
10/100BaseTX
2/12 Port 12            connected  256        normal a-full a-100  
10/100BaseTX

2006 Jun 22 16:01:01 EDT -05:00 %ETHC-5-PORTTOSTP:Port 2/11 joined  
bridge port 2/11
2006 Jun 22 16:01:01 EDT -05:00 %ETHC-5-PORTTOSTP:Port 2/12 joined  
bridge port 2/12
2006 Jun 22 16:01:02 EDT -05:00 %SYS-4-P2_WARN: 1/Host  
00:14:38:4c:e1:ee is flapping between port 2/12 and port 2/11
2006 Jun 22 16:01:19 EDT -05:00 %SYS-4-P2_WARN: 1/Host  
00:14:38:4c:e1:ee is flapping between port 2/11 and port 2/12


I found http://www.uwsg.iu.edu/hypermail/linux/net/0605.1/0008.html  
but it wasn't very helpful.  Other users seem to have it "just
work."

If anybody has run into this, I would appreciate some pointers.

Thanks,

Michael Grinnell
Network Security Administrator
The American University