[Openstack-operators] While adding external bridge connection lost to the network node
Geo Varghese
gvarghese at aqorn.com
Mon Nov 24 13:32:11 UTC 2014
Britt,
Its okay. Thanks a lot your time.
I just added br-ex successfully. How can we verify its working. Please
check below ovs-vsctl show
=============
root at controller:/home/geo# ovs-vsctl show
b97bd565-6196-40f2-8f3e-c8f21c04c98f
Bridge br-ex
Port "eth0"
Interface "eth0"
Port br-ex
Interface br-ex
type: internal
Bridge br-tun
Port br-tun
Interface br-tun
type: internal
Port "gre-c0a87bb3"
Interface "gre-c0a87bb3"
type: gre
options: {in_key=flow, local_ip="192.168.123.54",
out_key=flow, remote_ip="192.168.123.179"}
Port "gre-c0a87a36"
Interface "gre-c0a87a36"
type: gre
options: {in_key=flow, local_ip="192.168.123.54",
out_key=flow, remote_ip="192.168.122.54"}
Port "gre-7f000001"
Interface "gre-7f000001"
type: gre
options: {in_key=flow, local_ip="192.168.123.54",
out_key=flow, remote_ip="127.0.0.1"}
Port patch-int
Interface patch-int
type: patch
options: {peer=patch-tun}
Bridge br-int
fail_mode: secure
Port "qvof64e7b35-cb"
tag: 1
Interface "qvof64e7b35-cb"
Port "tapbb0d455b-79"
tag: 1
Interface "tapbb0d455b-79"
type: internal
Port patch-tun
Interface patch-tun
type: patch
options: {peer=patch-int}
Port "qvo887bf763-8d"
tag: 1
Interface "qvo887bf763-8d"
Port br-int
Interface br-int
type: internal
Port "int-br-eth1"
Interface "int-br-eth1"
Port "tapa72fb9d6-4a"
tag: 2
Interface "tapa72fb9d6-4a"
type: internal
ovs_version: "2.0.2
=============
On Mon, Nov 24, 2014 at 6:22 PM, Britt Houser (bhouser) <bhouser at cisco.com>
wrote:
> Geo,
>
> Sorry for not getting back sooner. Was out sick. Can you post the
> output of 'ovs-vsctl show'? I didn’t see a br-ex interface in your
> ifconfig output.
>
> Thx,
> britt
>
>
> From: Geo Varghese <gvarghese at aqorn.com>
> Date: Friday, November 21, 2014 at 1:39 PM
>
> 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
>
> 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
>> <http://docs.openstack.org/icehouse/install-guide/install/apt/content/neutron-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
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> --
>> --
>> Regards,
>> Geo Varghese
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> --
>> --
>> Regards,
>> Geo Varghese
>>
>>
>
>
> --
> --
> Regards,
> Geo Varghese
>
--
--
Regards,
Geo Varghese
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