Subject: Re: bond interface arp, vlan and trunk / network question

From: Eric Dumazet <[email-masked]>
Date: Mon, 20 Apr 2009 20:16:16 +0200

stefan novak a écrit :
> Hello list,
> 
> I've got a Problem with my bladecenter and bond interfaces.
> My Server has 2 interface, each on a seperate switch. Each
> serverinterface is connected via a trunk to one of the switches.
> Each switch has a trunk to stacked-backbone switch.
> 
> nic1 --trunk--> bladesw1 --trunk--> backbone switch
> nic2 --trunk--> bladesw2 --trunk--> backbone switch
> 
> So far vlan and trunking works as expected. But if one trunk
> connection from a bladeswitch to the backbone switch is down the
> mii-tool cant recognize this.

What is the exact problem on this one ?

> I tried to use an arp target on the backbone switch to check the
> connection state.
> 
> Now i'm running into problems. :(
> My bladesw1 is configured with a trunk and a private vlan id of 600.
> On the backbone switch is a server in the vlan 600 connected, but i
> can't get an arp request.
> 
> What can be the problem, or is it possible to add a vlan tag on the arp check?
> 

What driver is in use on your NIC interface ?

Could you post your bonding settings ?

cat /proc/net/bonding/bond0