Public bug reported:
ENV:
stable/mitaka
When A DVR floating IP associate to a port, the `floatingip_update_callback`
will immediately start a `start_route_advertisements` to notify DR agent that
FIP bgp route.
But this bgp route is not right, its next_hop is set to snat gateway IP address.
And then after `periodic_interval` seconds, then the DR agent will resync that
DVR fip route with new next_hop to the correct FIP namespace fg-device IP
address.
Reproduce:
1. create a DVR router 1, set gateway
2. create a network/subnet, and connected to the DVR router 1
3. create a VM 1
4. bind a floating IP to that VM 1
5. in DR agent LOG, you may see the following infos:
2016-08-23 13:08:26.301 13559 INFO bgpspeaker.api.base
[req-829d21e2-98c3-49f3-9ba5-bd626aaf782e - - - - -] API method network.add
called with args: {'prefix': u'172.16.10.68/32', 'next_hop': u'172.16.6.154'}
2016-08-23 13:08:26.302 13559 INFO neutron.services.bgp.driver.ryu.driver
[req-829d21e2-98c3-49f3-9ba5-bd626aaf782e - - - - -] Route
cidr=172.16.10.68/32, nexthop=172.16.6.154 is advertised for BGP Speaker
running for local_as=2345.
2016-08-23 13:08:37.131 13559 INFO bgpspeaker.api.base
[req-fa420676-2ddd-4b24-9c36-932c2c8b1bef - - - - -] API method network.del
called with args: {'prefix': u'172.16.10.68/32'}
2016-08-23 13:08:37.131 13559 INFO neutron.services.bgp.driver.ryu.driver
[req-fa420676-2ddd-4b24-9c36-932c2c8b1bef - - - - -] Route cidr=172.16.10.68/32
is withdrawn from BGP Speaker running for local_as=2345.
2016-08-23 13:08:37.132 13559 INFO bgpspeaker.api.base
[req-fa420676-2ddd-4b24-9c36-932c2c8b1bef - - - - -] API method network.add
called with args: {'prefix': u'172.16.10.68/32', 'next_hop': u'172.16.10.66'}
2016-08-23 13:08:37.132 13559 INFO neutron.services.bgp.driver.ryu.driver
[req-fa420676-2ddd-4b24-9c36-932c2c8b1bef - - - - -] Route
cidr=172.16.10.68/32, nexthop=172.16.10.66 is advertised for BGP Speaker
running for local_as=2345.
** Affects: neutron
Importance: Undecided
Status: New
** Tags: l3-bgp
** Description changed:
ENV:
stable/mitaka
-
When A DVR floating IP associate to a port, the `floatingip_update_callback`
will immediately start a `start_route_advertisements` to notify DR agent that
FIP bgp route.
But this bgp route is not right, its next_hop is set to snat gateway IP
address.
- And then after `periodic_interval` seconds, then the DR agent will resync
that DVR fip route with new next_hop to the correct FIP namespace fip-device IP
address.
-
+ And then after `periodic_interval` seconds, then the DR agent will resync
that DVR fip route with new next_hop to the correct FIP namespace fg-device IP
address.
Reproduce:
1. create a DVR router 1, set gateway
2. create a network/subnet, and connected to the DVR router 1
3. create a VM 1
4. bind a floating IP to that VM 1
5. in DR agent LOG, you may see the following infos:
-
2016-08-23 13:08:26.301 13559 INFO bgpspeaker.api.base
[req-829d21e2-98c3-49f3-9ba5-bd626aaf782e - - - - -] API method network.add
called with args: {'prefix': u'172.16.10.68/32', 'next_hop': u'172.16.6.154'}
2016-08-23 13:08:26.302 13559 INFO neutron.services.bgp.driver.ryu.driver
[req-829d21e2-98c3-49f3-9ba5-bd626aaf782e - - - - -] Route
cidr=172.16.10.68/32, nexthop=172.16.6.154 is advertised for BGP Speaker
running for local_as=2345.
2016-08-23 13:08:37.131 13559 INFO bgpspeaker.api.base
[req-fa420676-2ddd-4b24-9c36-932c2c8b1bef - - - - -] API method network.del
called with args: {'prefix': u'172.16.10.68/32'}
2016-08-23 13:08:37.131 13559 INFO neutron.services.bgp.driver.ryu.driver
[req-fa420676-2ddd-4b24-9c36-932c2c8b1bef - - - - -] Route cidr=172.16.10.68/32
is withdrawn from BGP Speaker running for local_as=2345.
2016-08-23 13:08:37.132 13559 INFO bgpspeaker.api.base
[req-fa420676-2ddd-4b24-9c36-932c2c8b1bef - - - - -] API method network.add
called with args: {'prefix': u'172.16.10.68/32', 'next_hop': u'172.16.10.66'}
2016-08-23 13:08:37.132 13559 INFO neutron.services.bgp.driver.ryu.driver
[req-fa420676-2ddd-4b24-9c36-932c2c8b1bef - - - - -] Route
cidr=172.16.10.68/32, nexthop=172.16.10.66 is advertised for BGP Speaker
running for local_as=2345.
** Tags added: l3-bgp
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https://bugs.launchpad.net/bugs/1615919
Title:
BGP: DVR fip has next_hop to snat gateway after associate first time
Status in neutron:
New
Bug description:
ENV:
stable/mitaka
When A DVR floating IP associate to a port, the `floatingip_update_callback`
will immediately start a `start_route_advertisements` to notify DR agent that
FIP bgp route.
But this bgp route is not right, its next_hop is set to snat gateway IP
address.
And then after `periodic_interval` seconds, then the DR agent will resync
that DVR fip route with new next_hop to the correct FIP namespace fg-device IP
address.
Reproduce:
1. create a DVR router 1, set gateway
2. create a network/subnet, and connected to the DVR router 1
3. create a VM 1
4. bind a floating IP to that VM 1
5. in DR agent LOG, you may see the following infos:
2016-08-23 13:08:26.301 13559 INFO bgpspeaker.api.base
[req-829d21e2-98c3-49f3-9ba5-bd626aaf782e - - - - -] API method network.add
called with args: {'prefix': u'172.16.10.68/32', 'next_hop': u'172.16.6.154'}
2016-08-23 13:08:26.302 13559 INFO neutron.services.bgp.driver.ryu.driver
[req-829d21e2-98c3-49f3-9ba5-bd626aaf782e - - - - -] Route
cidr=172.16.10.68/32, nexthop=172.16.6.154 is advertised for BGP Speaker
running for local_as=2345.
2016-08-23 13:08:37.131 13559 INFO bgpspeaker.api.base
[req-fa420676-2ddd-4b24-9c36-932c2c8b1bef - - - - -] API method network.del
called with args: {'prefix': u'172.16.10.68/32'}
2016-08-23 13:08:37.131 13559 INFO neutron.services.bgp.driver.ryu.driver
[req-fa420676-2ddd-4b24-9c36-932c2c8b1bef - - - - -] Route cidr=172.16.10.68/32
is withdrawn from BGP Speaker running for local_as=2345.
2016-08-23 13:08:37.132 13559 INFO bgpspeaker.api.base
[req-fa420676-2ddd-4b24-9c36-932c2c8b1bef - - - - -] API method network.add
called with args: {'prefix': u'172.16.10.68/32', 'next_hop': u'172.16.10.66'}
2016-08-23 13:08:37.132 13559 INFO neutron.services.bgp.driver.ryu.driver
[req-fa420676-2ddd-4b24-9c36-932c2c8b1bef - - - - -] Route
cidr=172.16.10.68/32, nexthop=172.16.10.66 is advertised for BGP Speaker
running for local_as=2345.
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