bonding (mode=1) above (mode=4) lacp

drManhattan · 09-30-2013, 11:06 AM

Hi

Is it possible to setup below picture ?

Click image for larger version

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ID: 13575

Requirements :
- 2 different stack lan switches
- lacp on 2 x 1Gb
- Active/Stdby (mode=1) bonding on lacp (mode=4)

baldy3105 · 09-30-2013, 01:02 PM

Quote:

Originally Posted by drManhattan

Hi

Is it possible to setup below picture ?
Attachment 13575

Requirements :
- 2 different stack lan switches
- lacp on 2 x 1Gb
- Active/Stdby (mode=1) bonding on lacp (mode=4)

Your diagrams none too clear, but if I read it right I don't see why not. This is a pretty common setup. Set up two lacp bundles and use them as active/standby interfaces.

Couldn't tell you exactly how with Linux, but I've set up the network sidee to Solaris, Windows and Linux hosts. Google should show you the way :-)

drManhattan · 09-30-2013, 05:55 PM

I have setup two lacp bundles as you suggested @baldy3105.
My oes is RHEL6.4 and below are network configs from my server :

File : /etc/sysconfig/network-scripts/ifcfg-eth1

Code:

DEVICE="eth1"
BOOTPROTO="none"
NM_CONTROLLED="no"
ONBOOT="yes"
TYPE="Ethernet"
SLAVE=yes
MASTER=bond0

File : /etc/sysconfig/network-scripts/ifcfg-eth2

Code:

DEVICE="eth2"
BOOTPROTO="none"
NM_CONTROLLED="no"
ONBOOT="yes"
TYPE="Ethernet"
SLAVE=yes
MASTER=bond1

File : /etc/sysconfig/network-scripts/ifcfg-eth3

Code:

DEVICE="eth3"
BOOTPROTO="none"
NM_CONTROLLED="no"
ONBOOT="yes"
TYPE="Ethernet"
SLAVE=yes
MASTER=bond0

File : /etc/sysconfig/network-scripts/ifcfg-eth4

Code:

DEVICE="eth4"
BOOTPROTO="none"
NM_CONTROLLED="no"
ONBOOT="yes"
TYPE="Ethernet"
SLAVE=yes
MASTER=bond1

And bonded device LACP.

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

Code:

DEVICE=bond0
ONBOOT=yes
BOOTPROTO=static
BONDING_OPTS="mode=4 miimon=100 min_links=2 lacp_rate=1"
TYPE=Bonding
IPADDR=192.168.122.10
NETMASK=255.255.255.0
BROADCAST=192.168.122.255
DELAY=0
MTU=1500

File : /etc/sysconfig/network-scripts/ifcfg-bond1

Code:

DEVICE=bond1
ONBOOT=yes
BOOTPROTO=static
BONDING_OPTS="mode=4 miimon=100 min_links=2 lacp_rate=1"
TYPE=Bonding
IPADDR=192.168.122.11
NETMASK=255.255.255.0
BROADCAST=192.168.122.255
DELAY=0
MTU=1500

Now I don't know how to create on top of bond0 and bond1 devices, new device (mode=1 active/stdby).
I would like to create one device with IP e.g. 192.168.122.10 in mode=1 that is built from 2 devices in mode=4 : bond0 and bond1.
Could you explain me, how to make that happen ?

drManhattan · 10-01-2013, 10:01 AM

Ok I got this. I know howto manually configure it.
I changed ifcfg-bond0 and ifcfg-bond1 to this structure, basicaly added "SLAVE" variable :

File: ifcfg-bond0

Code:

DEVICE=bond0
ONBOOT=yes
BOOTPROTO=static
BONDING_OPTS="mode=4 miimon=100 min_links=2 lacp_rate=1"
TYPE=Bonding
IPADDR=192.168.122.10
NETMASK=255.255.255.0
BROADCAST=192.168.122.255
DELAY=0
MTU=1500
SLAVE=no

File: ifcfg-bond1

Code:

DEVICE=bond1
ONBOOT=yes
BOOTPROTO=static
BONDING_OPTS="mode=4 miimon=100 min_links=2 lacp_rate=1"
TYPE=Bonding
IPADDR=192.168.122.10
NETMASK=255.255.255.0
BROADCAST=192.168.122.255
DELAY=0
MTU=1500
SLAVE=yes

But now I am able to switchover IP 192.168.122.10 between bond0 and bond1 manualy by typing

Code:

ifdown bond0;ifup bond1

But this operation costs me loosing TCP/IP packets.
Is it possible for RHEL to discover automatically that bond0/1 interface failed and to failover IP automaticaly ?