On 12/1/2011 12:01 PM, Ben Pfaff wrote:
On Wed, Nov 30, 2011 at 06:18:15PM -0800, David Erickson wrote:
I think I've run into another semi-related issue with inband. I
recently changed the fail mode of my OVS instances from standalone
to secure because I wanted them to continue using the rules that had
been set in the event the controller died or needed restarting.
This had the unfortunate side effect that if the controller is down
long enough then the box can lose its DHCP lease, and be unable to
get a new one because DHCP requests are trying to be sent to the
controller, but the switch isn't able to connect to the controller
without an address, ie:
Nov 30 21:04:52 localhost dhclient: DHCPDISCOVER on xenbr0 to
255.255.255.255 port 67 interval 4
Nov 30 21:04:56 localhost dhclient: No DHCPOFFERS received.
Nov 30 21:04:56 localhost dhclient: No working leases in persistent
database - sleeping.
Nov 30 21:04:58 localhost ovs-vswitchd:
789878|stream_tcp|ERR|tcp:192.168.1.11:6633: connect: Network is
unreachable
What is the behavior of the inband rules when the switch is in
secure mode and has lost connection to the controller?
No different from any other time.
It seems to me like they are being ignored, or at least the DHCP
rule doesn't seem to be working.
Please investigate further. I would start by finding out whether the
DHCP requests are making it out on the wire, then if they are, whether
DHCP replies are visible coming back across the wire.
Ya the requests aren't making it onto the wire.
-D
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