Open Stack

Britt,

Just tried it but network restart failed if I add these lines. Also IP not
assigned to bridge when controller restarted.

When try to do following command after this change

ifdown eth0

Show error in following line  in /etc/network/interfaces

iface br-ex inet static

Thanks again for your support.

On Fri, Nov 21, 2014 at 6:05 PM, Britt Houser (bhouser) <bhouser at cisco.com>
wrote:

> The br-ex config looks right, but you don't want eth0 to DHCP for an
> address anymore.  Once its attached to br-ex, its an L2-only interface
> (similar to switchport on cisco switch).  I think you want something like
> this for eth0:
>
> auto eth0
> iface eth0 inet manual
>   pre-up ifconfig $IFACE up
>   post-down ifconfig $IFACE down
>
>
> Thx,
> britt
>
> From:  Geo Varghese <gvarghese at aqorn.com>
> Date:  Friday, November 21, 2014 at 7:22 AM
> To:  Britt Houser <bhouser at cisco.com>
> Cc:  "openstack at lists.openstack.org" <openstack at lists.openstack.org>,
> "openstack-operators at lists.openstack.org"
> <openstack-operators at lists.openstack.org>
> Subject:  Re: [Openstack-operators] While adding external bridge
> connection lost to the network node
>
>
> Thanks Britt.
>
>
> You mean like this right?
>
> cat /etc/network/interfaces
> =========================
> # The loopback network interface
> auto lo
> iface lo inet loopback
>
> # The primary network interface
> auto eth0
> iface eth0 inet dhcp
>
> # The external network interface
> auto br-ex
> iface br-ex inet static
>        address 192.168.122.54
>        netmask 255.255.255.0
>        gateway 192.168.122.1
>        dns-nameservers 8.8.8.8 8.8.4.4
> ==========================================================
>
>
>
> On Fri, Nov 21, 2014 at 5:48 PM, Britt Houser (bhouser)
> <bhouser at cisco.com> wrote:
>
> Correct.  You need to updated your /etc/interfaces file so that the
> 192.168.122.54/24 <http://192.168.122.54/24> address gets assigned to
> br-ex instead of eth0.
>
> From: Geo Varghese <gvarghese at aqorn.com>
> Date: Friday, November 21, 2014 at 7:16 AM
> To: Britt Houser <bhouser at cisco.com>
> Cc: "openstack at lists.openstack.org" <openstack at lists.openstack.org>,
> "openstack-operators at lists.openstack.org"
>  <openstack-operators at lists.openstack.org>
> Subject: Re: [Openstack-operators] While adding external bridge connection
> lost to the network node
>
>
> Hi Britt,
>
> Thanks for the answer.
>
> I am using Virtual machine(KVM) for openstack installation. Its a single
> node installation.
>
>
> Now i can create instance from openstack dahboard and and can login in to
> the instance from dashboard konsole.
>
> But i couln't connect to instance from controller node.
>
> Also i couldn't have connection between instances.
>
> Ifconfig output from openstack installation node
> =======================
> root at ubuntu:/home/geo# ifconfig
> br-int    Link encap:Ethernet  HWaddr 26:73:95:7a:c5:4e
>           inet6 addr: fe80::ec9d:9aff:fe2f:66ab/64 Scope:Link
>           UP BROADCAST RUNNING  MTU:1500  Metric:1
>           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:0 (0.0 B)  TX bytes:648 (648.0 B)
>
> br-tun    Link encap:Ethernet  HWaddr 0e:af:b2:8e:89:44
>           inet6 addr: fe80::c89f:cfff:fe74:712/64 Scope:Link
>           UP BROADCAST RUNNING  MTU:1500  Metric:1
>           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:0 (0.0 B)  TX bytes:648 (648.0 B)
>
> eth0      Link encap:Ethernet  HWaddr 52:54:00:d6:4c:4f
>           inet addr:192.168.122.54  Bcast:192.168.122.255
> Mask:255.255.255.0
>           inet6 addr: fe80::5054:ff:fed6:4c4f/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:162 errors:0 dropped:3 overruns:0 frame:0
>           TX packets:100 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:16187 (16.1 KB)  TX bytes:13445 (13.4 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:737 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:737 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:104803 (104.8 KB)  TX bytes:104803 (104.8 KB)
>
> tap561bdedf-3e Link encap:Ethernet  HWaddr 42:c5:72:1c:3b:99
>           inet6 addr: fe80::40c5:72ff:fe1c:3b99/64 Scope:Link
>           UP BROADCAST RUNNING  MTU:1500  Metric:1
>           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:0 (0.0 B)  TX bytes:648 (648.0 B)
>
> tapde436ec7-3b Link encap:Ethernet  HWaddr b6:09:88:dc:f7:5a
>           inet6 addr: fe80::b409:88ff:fedc:f75a/64 Scope:Link
>           UP BROADCAST RUNNING  MTU:1500  Metric:1
>           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:0 (0.0 B)  TX bytes:648 (648.0 B)
> ======================================
>
>
> Same eth0 i have used to add br-ex, you mean thats the issue right?
>
>
> On Fri, Nov 21, 2014 at 5:31 PM, Britt Houser (bhouser)
> <bhouser at cisco.com> wrote:
>
> Was the interface you added to br-ex the same interface to which you
> connected to the box?  If so, this is expected.  When you add an interface
> to the bridge you lose IP connectivity to that interface.  The IP address
> which which was assigned to the interface
>  now needs to be assigned to the br-ex bridge, and then you'll have
> connectivity once again.
>
> Thx,
> britt
>
> From: Geo Varghese <gvarghese at aqorn.com>
> Date: Friday, November 21, 2014 at 1:39 AM
> To: "openstack at lists.openstack.org" <openstack at lists.openstack.org>,
> "openstack-operators at lists.openstack.org"
>  <openstack-operators at lists.openstack.org>
> Subject: [Openstack-operators] While adding external bridge connection
> lost to the network node
>
>
> Hi Team,
>
> While adding external bridge connection lost to the network node from
> other nodes. we couldn't ssh to network node after creating bridge.
>
> If we do below steps of following link
>
> http://docs.openstack.org/icehouse/install-guide/install/apt/content/neutro
> n-ml2-network-node.html
>
> ===========================================
> 3) Add the external bridge:
>
> # ovs-vsctl add-br br-ex
>
> 4) Add a port to the external bridge that connects to the physical
> external network interface:
>
> Replace INTERFACE_NAME with the actual interface name. For example, eth2
> or ens256.
>
> # ovs-vsctl add-port br-ex INTERFACE_NAME
> =============================================
>
> External connection to network node fails. Then we couldn't connect to
> network node from other machines.
>
> Any one faced this issue?
>
> Please help us to fix this issue.
>
>
>
>
> --
> Regards,
> Geo Varghese
>
>
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>
> --
> --
> Regards,
> Geo Varghese
>
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>
> --
> --
> Regards,
> Geo Varghese
>
>


-- 
--
Regards,
Geo Varghese
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