[ovs-discuss] GRE tunnel not working when interface name lenght > 13 characters
Salvatore.Orlando at eu.citrix.com
Wed Feb 15 17:52:05 UTC 2012
I apologise I did not configure correctly the vswitch on the Ubuntu machine running 1.2.
The behaviour seems anyway confirmed in 1.0.99, but I suspect that's unsupported now.
Anyway, is the behaviour when the interface name exceeds the 16 character limit documented?
Ovs-vsctl did not raise any error message.
> -----Original Message-----
> From: Jesse Gross [mailto:jesse at nicira.com]
> Sent: 15 February 2012 17:32
> To: Salvatore Orlando
> Cc: bugs at openvswitch.org
> Subject: Re: [ovs-discuss] GRE tunnel not working when interface name
> lenght > 13 characters
> On Wed, Feb 15, 2012 at 8:40 AM, Salvatore Orlando
> <Salvatore.Orlando at eu.citrix.com> wrote:
> > An unexpected behaviour occurred while creating GRE tunnels with Open
> > In a nutshell, GRE tunnels appear to be not working when the name of the
> tunnel interface exceeded 13 characters. The tunnel is stored in the
> database, but it does not show up on the datapath.
> > This behaviour occurred on OVS 1.0.99 and 1.2.0, but not on OVS 1.0.2.
> > I'm not sure whether this actually is a bug or the effect of some
> misconfiguration. The configuration db from the Ubuntu system is attached.
> > Reproducing the issue
> > ----------------------------------
> > 1) add an OVS bridge
> > 2) add a port to the bridge and set the interface plugged in it to gre type.
> Make sure the name for the port/interface exceeds 13 characters.
> > e.g.: ovs-vsctl add-port test_br abcdef01234567 -- set interface
> > abcdef01234567 type=gre options:key=999 options:remote_ip=192.168.1.1
> Your database file uses the name abcdef0123456789, which is 16 characters
> and does exceed the maximum length of a device. The 14 character name
> works fine for me on both 1.2 and master.
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