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Hi Wanjing,

You are not seeing the network interfaces for the VIP and member
networks because they are inside a network namespace for security
reasons.  You can see these by issuing "sudo ip netns exec
amphora-haproxy ifconfig -a".

I'm not sure what version of octavia and neutron you are using, but
the issue you noted about "dns_name" was fixed here:
https://review.openstack.org/#/c/337939/

Michael


On Thu, Nov 3, 2016 at 11:29 AM, Wanjing Xu (waxu) <waxu at cisco.com> wrote:
> Going through the log , I saw the following error on o-hm
>
> 2016-11-03 03:31:06.441 19560 ERROR
> octavia.controller.worker.controller_worker     request_ids=request_ids)
> 2016-11-03 03:31:06.441 19560 ERROR
> octavia.controller.worker.controller_worker BadRequest: Unrecognized
> attribute(s) 'dns_name'
> 2016-11-03 03:31:06.441 19560 ERROR
> octavia.controller.worker.controller_worker Neutron server returns
> request_ids: ['req-1daed46e-ce79-471c-a0af-6d86d191eeb2']
>
> And it seemed that I need to upgrade my neutron client.  While I am planning
> to do it, could somebody please send me the document on how this vip is
> supposed to plug into the lbaas vm and what the failover is about ?
>
> Thanks!
> Wanjing
>
>
> From: Cisco Employee <waxu at cisco.com>
> Reply-To: "OpenStack Development Mailing List (not for usage questions)"
> <openstack-dev at lists.openstack.org>
> Date: Wednesday, November 2, 2016 at 7:04 PM
> To: "OpenStack Development Mailing List (not for usage questions)"
> <openstack-dev at lists.openstack.org>
> Subject: [openstack-dev] [Neutron][neutron-lbaas][octavia] Not be able to
> ping loadbalancer ip
>
> So I bring up octavia using devstack (stable/mitaka).   I created a
> loadbalander and a listener(not create member yet) and start to look at how
> things are connected to each other.  I can ssh to amphora vm and I do see a
> haproxy is up with front end point to my listener.  I tried to ping (from
> dhcp namespace) to the loadbalancer ip, and ping could not go through.  I am
> wondering how packet is supposed to reach this amphora vm.  I can see that
> the vm is launched on both network(lb_mgmt network and my vipnet), but I
> don’t see any nic associated with my vipnet:
>
> ubuntu at amphora-dad2f14e-76b4-4bd8-9051-b7a5627c6699:~$ ifconfig -a
> eth0      Link encap:Ethernet  HWaddr fa:16:3e:b4:b2:45
>           inet addr:192.168.0.4  Bcast:192.168.0.255  Mask:255.255.255.0
>           inet6 addr: fe80::f816:3eff:feb4:b245/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:2496 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:2626 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:307518 (307.5 KB)  TX bytes:304447 (304.4 KB)
>
> lo        Link encap:Local Loopback
>           inet addr:127.0.0.1  Mask:255.0.0.0
>           inet6 addr: ::1/128 Scope:Host
>           UP LOOPBACK RUNNING  MTU:65536  Metric:1
>           RX packets:212 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:212 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:18248 (18.2 KB)  TX bytes:18248 (18.2 KB)
>
> localadmin at dmz-eth2-ucs1:~/devstack$ nova list
> +--------------------------------------+----------------------------------------------+--------+------------+-------------+-----------------------------------------------+
> | ID                                   | Name
> | Status | Task State | Power State | Networks
> |
> +--------------------------------------+----------------------------------------------+--------+------------+-------------+-----------------------------------------------+
> | 557a3de3-a32e-419d-bdf5-41d92dd2333b |
> amphora-dad2f14e-76b4-4bd8-9051-b7a5627c6699 | ACTIVE | -          | Running
> | lb-mgmt-net=192.168.0.4; vipnet=100.100.100.4 |
> +--------------------------------------+----------------------------------------------+--------+------------+-------------+———————————————————————+
>
> And it seemed that amphora created a port from the vipnet for its vrrp_ip,
> but now sure how it is used and how it is supposed to help packet to reach
> loadbalancer ip
>
> It will be great if somebody can help on this, especially on network side.
>
> Thanks
> Wanjing
>
>
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