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Special Forums IP Networking Channel bonding Issue - Bond0 interface not getting up in on RHEL6 Post 302626039 by Rohit Bhanot on Wednesday 18th of April 2012 06:25:10 PM
Old 04-18-2012
Channel bonding Issue - Bond0 interface not getting up in on RHEL6

Hello,

I am trying to set up Channel Bonding on a RHEL6 Virtual Box VM. I have 2 ethernet cards on the machine which are set up in Internal Network mode. I followed all the steps exactly as mentioned in the RHEL6 deployment Guide, but for some reason i think results are not correct. Here are my doubts:

1. When i reboot the system the Bond0 interface is up and has the IP assigned and eth1 and eth2 cards are acting as slaves, which is expected but as soon as i restart the network service the Bond0 interface does not come up.

2. Second question which i have is when the Bond0 is up and has IP assigned to it, i ping from my other VM to the IP and it responds. Now when i manually bring down both the physical interfaces eth1 and eth2, even then also i am getting ping replies. I am wondering when both the physical interfaces are down how can Bonded interface respond.

Please correct me wherever i am missing anything. Or if i am doing this wrong way please guide me in doing it correctly. I am attaching the screen shots and config files for my system.

Network Interfaces config files

Code:
[root@prod ~]# cat /etc/sysconfig/network-scripts-ifcfg-bond0
DEVICE="bond0"
ONBOOT="yes"
BOOTPROTO="none"
IPADDR="192.168.10.1"
USERCTL="no"
BONDING_OPTS="mode=1 miimon=100"

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

[root@prod ~]# cat /etc/sysconfig/network-scripts-ifcfg-eth2
DEVICE="eth2"
ONBOOT="yes"
BOOTPROTO="none"
MASTER="bond0"
SLAVE="yes"
USERCTL="no"

Contents of /etc/modprobe.d/bonding.conf

Code:
[root@prod ~]# cat /etc/modprobe.d/bonding.conf
alias bond0 bonding

I have also attached the screen shots of various outputs
Channel bonding  Issue - Bond0 interface not getting up in on RHEL6-ifconfig-output_after-system-rebootpng
Channel bonding  Issue - Bond0 interface not getting up in on RHEL6-ifconfig-output_after-network-service-restartpng
Channel bonding  Issue - Bond0 interface not getting up in on RHEL6-cat-proc-net-bonding-bond0-outputpng

Last edited by Scrutinizer; 04-19-2012 at 10:59 AM.. Reason: replace quote tags with code tags
 

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