FreeBSD 9.1 ix driver vlan problem

Jack Vogel jfvogel at
Wed Sep 25 07:51:48 UTC 2013

I will look into this.


On Tue, Sep 24, 2013 at 5:16 PM, Rumen Telbizov <telbizov at> wrote:

> Hello Jack, list,
> I've been dealing with a nagging problem for a day now and decided to ask a
> quick question here.
> Basically I am building a brand new FreeBSD 9.1-RELEASE router which has a
> dual port fiber NIC (X520-SR2 10GbE Dual-Port Server Adapter (82599ES)
> 10GBASE-SR - LC). The network card is recognized fine by the ix driver and
> overall works fine.
> The issue is when I start adding vlans to this card. It seems like every
> time I add a brand new vlan it "freezes" all the rest of the vlans already
> configured on that one physical interface. I loose ping between my locally
> connected peers.
> Example:
> ifconfig vlan200 create  # this is OK
> ifconfig vlan200 inet  vlan 200 vlandev ix1 description DEBUG #
> this second line makes the rest of the vlans freeze for 6-7 seconds
> On the switch side (Juniper) the physical interface flaps. There's nothing
> in logs/dmesg.
> If I configure the above vlan on an em0 interface - things are just smooth.
> I read some similar complaints that have surfaced in the past:
>  *
>  *
> Any idea what might be the problem? Any improvements in 9.2-RC4 in this
> regards?
> Thank you in advance,
> --
> Rumen Telbizov
> Unix Systems Administrator <>
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