Hi All,
I am trying to test some basic functionality with kvm guests.
I downloaded the openvswitch-0.99.1 unstable tarball release.
I created a dummy0 interface (I've tested on both Ubuntu 9.10 and Fedora 12)
My ovs-vswitchd.conf is simply:
bridge.internalbr.port=dummy0
I start two kvm guests with:
kvm -cdrom ~/Desktop/iso/ubuntu-9.10-desktop-i386.iso -net
nic,model=e1000 -net
tap,script=internal-ifup,downscript=internal-ifdown -m 1024
the internal-ifup script:
-------------------------------------------------------------
#!/bin/sh
switch=internalbr
/usr/local/bin/ovs-dpctl del-if $switch $1
/sbin/ifconfig $1 0.0.0.0 down
-------------------------------------------------------------
the internal-ifdown script
-------------------------------------------------------------
#!/bin/sh
switch='internalbr'
'''sudo''' /sbin/ifconfig $1 0.0.0.0 up
'''sudo''' /usr/local/bin/ovs-dpctl add-if ${switch} $1
exit 0
-------------------------------------------------------------
ovs-dpctl show (adds the tap interfaces as expected)
dp0:
flows: cur:0, soft-max:512, hard-max:262144
ports: cur:4, max:1024
groups: max:16
lookups: frags:0, hit:49, missed:122, lost:0
queues: max-miss:100, max-action:100
port 0: internalbr (internal)
port 1: dummy0
port 2: tap0
port 3: tap1
I hard-coded the IP addresses in the guests, but they can't ping each other.
The output of running: ovs-vswitchd ovs-vswitchd.conf
Feb 07 23:46:17|00001|cfg|INFO|using "ovs-vswitchd.conf" as
configuration file, ".ovs-vswitchd.conf.~lock~" as lock file
Feb 07 23:46:18|00002|ofproto|INFO|using datapath ID 002320dc5ff5
Feb 07 23:46:18|00003|bridge|INFO|created bridge internalbr on dp0
Feb 07 23:46:18|00004|bridge|INFO|created port dummy0 on bridge internalbr
Feb 07 23:46:18|00005|ofproto|INFO|datapath ID changed to 8efae2549dde
Feb 07 23:49:24|00006|bridge|WARN|bridge internalbr: received packet
on unknown interface 2
Feb 07 23:49:24|00007|bridge|WARN|bridge internalbr: received packet
on unknown interface 2
Feb 07 23:49:24|00008|bridge|WARN|bridge internalbr: received packet
on unknown interface 2
Feb 07 23:49:25|00009|bridge|WARN|bridge internalbr: received packet
on unknown interface 2
Feb 07 23:49:29|00010|bridge|WARN|bridge internalbr: received packet
on unknown interface 2
Feb 07 23:50:51|00011|bridge|WARN|Dropped 10 log messages in last 79
seconds due to excessive rate
Feb 07 23:50:51|00012|bridge|WARN|bridge internalbr: received packet
on unknown interface 3
Feb 07 23:51:34|00013|bridge|WARN|Dropped 5 log messages in last 43
seconds due to excessive rate
Feb 07 23:51:34|00014|bridge|WARN|bridge internalbr: received packet
on unknown interface 2
I am assuming that there are other debugging techniques that would be
helpful, but was wondering if I am doing something that is obviously
wrong or if I am running into some simple known problem.
I can and will try to debug further.
I did also tried using eth0 as switch (bridge) and it similarly
doesn't work on Ubuntu and on Fedora I get an "eth0 device in use"
error. I do have some specific applications where I will need to use
both an internal bridge (such as dummy0) and an external bridge (such
as eth0).
Any ideas or suggestion on thing that I could try?
Thanks,
Todd
--
Todd Deshane
http://todddeshane.net
http://runningxen.com
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