Hi Isaku, Fujita and Rest,
I have been running ryu with openstack for a while. Initially, I was having
problems with instances not getting IP from DHCP because Ryu controller would
drop all the DHCP discover messages. Right now, I have switched from
SimpleIsolation app to SimpleSwitch App. Things look promising in the sense
that now at least the DHCP messages are flooded out of all ports on the br-int.
I can see the DHCP discover messages at gw-* interface where dnsmasq is bound,
but I can not see any reply from dnsmasq's DHCP. Instead on viewing
/var/log/syslog, I see :
May 1 22:01:42 malik dnsmasq-dhcp[11228]: DHCP, static leases only on
10.0.0.2, lease time 2m
May 1 22:01:42 malik dnsmasq[11228]: reading /etc/resolv.conf
May 1 22:01:42 malik dnsmasq[11228]: using nameserver 130.126.2.131#53
May 1 22:01:42 malik dnsmasq[11228]: read /etc/hosts - 7 addresses
May 1 22:01:42 malik dnsmasq-dhcp[11228]: read
/opt/stack/nova/networks/nova-gw-82bd3a73-dc.conf
May 1 22:01:45 malik dnsmasq[11336]: started, version 2.57 cachesize 150
May 1 22:01:45 malik dnsmasq[11336]: compile time options: IPv6 GNU-getopt
DBus I18N DHCP TFTP IDN
May 1 22:01:45 malik dnsmasq-dhcp[11336]: DHCP, static leases only on
10.0.0.2, lease time 2m
May 1 22:01:45 malik dnsmasq[11336]: reading /etc/resolv.conf
May 1 22:01:45 malik dnsmasq[11336]: using nameserver 130.126.2.131#53
May 1 22:01:45 malik dnsmasq[11336]: read /etc/hosts - 7 addresses
May 1 22:01:45 malik dnsmasq-dhcp[11336]: read
/opt/stack/nova/networks/nova-gw-82bd3a73-dc.conf
I am not sure whats going on... Can you networking gurus provide some help ?
I need to launch instances properly.
Thanks,
Salman
P.S : I also see message like Adding binding to net-id = None for
iface-id=aa912f51-dfa7-422b-9066-51eedf5c6cef, vif_mac=fa:16:3e:2e:54:9f,
port_name=tapaa912f51-df, ofport=16, bridge name = br-int, in the ryu_agent's
output. Could this be the reason that Ryu simple isolation drops packets
(because it could not determine the network-id and port mapping ?) ?
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