Channel Bonding

Channel Bonding

[Eric Olson]

I've been using channel bonding with Linux kernel 2.4.17.

I recently tried the standard kernel 2.4.19 but 

	ifconfig bond0 ...

hangs.  The bonding module gets loaded.  The message

	bond0 registered without MII link monitoring, in bonding mode.

appears in the system log.  But then ifconfig hangs and kill -9 ...
won't kill it.  Furthermore running ifconfig again locks the entire
system up.

Configuration is the same as for my working 2.4.17 kernel.

This appears to be a bug to me.  Is anyone using bonding with 2.4.19?
Is this a known issue with 2.4.19? 

Is there something that needs to be done differently with 2.4.19 than
with 2.4.17?

Please copy me directly on replies to this message.

Thanks, Eric Olson

Re: Channel Bonding

[David S. Miller]

2.4.20-preX has a fix for this bug.

Channel Bonding

[Ross Clarke]

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Hash: SHA1

Hi,

I am currently trying to get channel bonding working on two of my linux 
machines using a standard 100mbit CNET switch. I first started with my 
desktop which runs 2.6.0-test4, I managed to get everything working 
using 2 NICS (1x 3com 905b and 1x RT8139c). Everything worked 100%. I 
then done the exact same setup on my ftp server which uses 2 tulip based 
network cards and kernel 2.4.20 with the gentoo linux patches, however 
when I ping the ftp server I get a duplicate on every packet, rendering 
the box useless. I then upgraded the ftp server to 2.6.0-test4 and 
recieved the exact same result. Is there something im missing, is it 
perhaps a NIC problem? I would really like to get this working. Does 
anybody have some tips or experiences they could share?

Thanks,
Ross
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Re: Channel Bonding

[Jeff Largent]

This may be a result of your switch.
Some switches cannot handle multiple instaces of the same
mac address.  If your switch is capable of creating vlans,
create 2 vlans and put one of the nics on each channel.

My standard bond configuration looks like this using redhat:
in /etc/modules.conf
alias eth0 3c59x
alias eth1 3c59x
alias bond0 bonding

/etc/sysconfig/network-scripts/ifcfg-bond0
DEVICE=bond0
ONBOOT=yes
BOOTPROTO=static
IPADDR=192.168.1.11
NETMASK=255.255.255.0
GATEWAY=192.168.1.1

/etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
USERCTL=no
ONBOOT=yes
MASTER=bond0
SLAVE=yes
BOOTPROTO=none

/etc/sysconfig/network-scripts/ifcfg-eth1
DEVICE=eth1
USERCTL=no
ONBOOT=yes
MASTER=bond0
SLAVE=yes
BOOTPROTO=none


Hope this helps.


Ross Clarke wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Hi,
> 
> I am currently trying to get channel bonding working on two of my linux 
> machines using a standard 100mbit CNET switch. I first started with my 
> desktop which runs 2.6.0-test4, I managed to get everything working 
> using 2 NICS (1x 3com 905b and 1x RT8139c). Everything worked 100%. I 
> then done the exact same setup on my ftp server which uses 2 tulip based 
> network cards and kernel 2.4.20 with the gentoo linux patches, however 
> when I ping the ftp server I get a duplicate on every packet, rendering 
> the box useless. I then upgraded the ftp server to 2.6.0-test4 and 
> recieved the exact same result. Is there something im missing, is it 
> perhaps a NIC problem? I would really like to get this working. Does 
> anybody have some tips or experiences they could share?
> 
> Thanks,
> Ross
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.2.2 (GNU/Linux)
> Comment: Using GnuPG with Mozilla Thunderbird - http://enigmail.mozdev.org
> 
> iD8DBQE/TqRt1+7fkD/L8TgRAkjlAJ4/lxueRHxzpKBw1Hd28ehKqYz+dQCfXffh
> GlU2eqnAtH4/PZywjNELvu4=
> =oxZD
> -----END PGP SIGNATURE-----
> 
> 
> -
> To unsubscribe from this list: send the line "unsubscribe linux-admin" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
> 

-- 
Jeff Largent                   ImageLinks, Inc.

Re: Channel Bonding

[Ross Clarke]

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Hash: SHA1

Thanks for the response. I had suspicions that my switch may be the 
problem, tho it works fine on my desktop machine. The documentation in 
the kernel source tree said for bonding mode 5 I wouldn't need any 
special switch, however, in mode 5 I dont get any response.
Any idea of whether using two switches would make a difference, with one 
NIC per switch? Ill try that later when people are sleeping and wont be 
using any files.

thanks
Ross

Jeff Largent wrote:

| This may be a result of your switch.
| Some switches cannot handle multiple instaces of the same
| mac address.  If your switch is capable of creating vlans,
| create 2 vlans and put one of the nics on each channel.
|
| My standard bond configuration looks like this using redhat:
| in /etc/modules.conf
| alias eth0 3c59x
| alias eth1 3c59x
| alias bond0 bonding
|
| /etc/sysconfig/network-scripts/ifcfg-bond0
| DEVICE=bond0
| ONBOOT=yes
| BOOTPROTO=static
| IPADDR=192.168.1.11
| NETMASK=255.255.255.0
| GATEWAY=192.168.1.1
|
| /etc/sysconfig/network-scripts/ifcfg-eth0
| DEVICE=eth0
| USERCTL=no
| ONBOOT=yes
| MASTER=bond0
| SLAVE=yes
| BOOTPROTO=none
|
| /etc/sysconfig/network-scripts/ifcfg-eth1
| DEVICE=eth1
| USERCTL=no
| ONBOOT=yes
| MASTER=bond0
| SLAVE=yes
| BOOTPROTO=none
|
|
| Hope this helps.
|
|
| Ross Clarke wrote:
|
|> -----BEGIN PGP SIGNED MESSAGE-----
|> Hash: SHA1
|>
|> Hi,
|>
|> I am currently trying to get channel bonding working on two of my linux
|> machines using a standard 100mbit CNET switch. I first started with my
|> desktop which runs 2.6.0-test4, I managed to get everything working
|> using 2 NICS (1x 3com 905b and 1x RT8139c). Everything worked 100%. I
|> then done the exact same setup on my ftp server which uses 2 tulip based
|> network cards and kernel 2.4.20 with the gentoo linux patches, however
|> when I ping the ftp server I get a duplicate on every packet, rendering
|> the box useless. I then upgraded the ftp server to 2.6.0-test4 and
|> recieved the exact same result. Is there something im missing, is it
|> perhaps a NIC problem? I would really like to get this working. Does
|> anybody have some tips or experiences they could share?
|>
|> Thanks,
|> Ross
|> -----BEGIN PGP SIGNATURE-----
|> Version: GnuPG v1.2.2 (GNU/Linux)
|> Comment: Using GnuPG with Mozilla Thunderbird - 
http://enigmail.mozdev.org
|>
|> iD8DBQE/TqRt1+7fkD/L8TgRAkjlAJ4/lxueRHxzpKBw1Hd28ehKqYz+dQCfXffh
|> GlU2eqnAtH4/PZywjNELvu4=
|> =oxZD
|> -----END PGP SIGNATURE-----
|>
|>
|> -
|> To unsubscribe from this list: send the line "unsubscribe linux-admin" in
|> the body of a message to majordomo@vger.kernel.org
|> More majordomo info at  http://vger.kernel.org/majordomo-info.html
|>
|>
|
| --
| Jeff Largent                   ImageLinks, Inc.
|
|

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