Re: bonding driver issues: slave interface not coming up

["Jason R. Martin" <nsxfreddy@gmail.com>]

On 6/27/05, John Jasen <jjasen@realityfailure.org> wrote:
> 
> Hello;
> 
> In short, using redhat enterprise 4, we're attempting to bond two tg3
> gigabit cards in XOR mode.
> 
> These cards are plugged into a cisco 2970 switch, configured with
> etherchannel bonding in src-dst-mac, which looks to be mode 2.
> 
> The problem area is, upon boot, the first slave NIC does not come up.
> Furthermore, running ethtool against the slave yields the following message:
> 
> [root@XXX ~]# ethtool eth0
> Settings for eth0:
> Cannot get device settings: Resource temporarily unavailable
>          Supports Wake-on: g
>          Wake-on: d
>          Current message level: 0x000000ff (255)
>          Link detected: no
> 
> Now, curiously enough, after boot, logging in and bringing down the
> bonding interface, then bringing it back up will activate both
> interfaces. ie:
> 
> ifdown bond0
> ifup bond0
> 
> ethtool eth0
> [root@XXX ~]# ethtool eth0
> Settings for eth0:
>          Supported ports: [ MII ]
>          Supported link modes:   10baseT/Half 10baseT/Full
>                                  100baseT/Half 100baseT/Full
>                                  1000baseT/Half 1000baseT/Full
>          Supports auto-negotiation: Yes
>          Advertised link modes:  Not reported
>          Advertised auto-negotiation: No
>          Speed: 1000Mb/s
>          Duplex: Full
>          Port: Twisted Pair
>          PHYAD: 1
>          Transceiver: internal
>          Auto-negotiation: off
>          Supports Wake-on: g
>          Wake-on: d
>          Current message level: 0x000000ff (255)
>          Link detected: yes
> 
> Attempts at debugging that we've taken and their results:
> 
> duplex/speed forced on both switch and card: no effect
> turning off spanning tree protocol: no effect
> enabling fastport: no effect
> switching from tg3 to bcm5700 drivers: no effect
> attempting to down and up the interface in /etc/rc.d/init.d/network: no
> effect
> attempting a script that runs after network and irqbalance to do the
> same thing: no effect
> putting something in rc.local to do the same: works, our current ugly
> workaround
> breaking the bond, using the interfaces as two independent NICS: works
> restarting the bond0 interface manually: works
> 
> This problem also manifests on more than one system, which would seem to
> preclude possible cable, host, or port problems.
> 
> Any ideas, or any further information I can send you to help diagnose?
> Any help would be much appreciated.

What's in /proc/net/bonding/bond0?

You'll probably have better luck getting help with this issue on
netdev@vger.kernel.org and bonding-devel@lists.sourceforge.net.

Jason