Open Stack

Hi,

Yes, if IP is not needed set the BOOTPROTO to none.

Regards,
Akash



From:	Uwe Sauter <uwe.sauter.de at gmail.com>
To:	Akash Gunjal/India/IBM at IBMIN
Cc:	"openstack at lists.openstack.org Openstack"
            <openstack at lists.openstack.org>
Date:	03/05/2015 05:17 PM
Subject:	Re: [Openstack] OpenVSwitch ports won't come up / Neutron
            configuration problems



Hi,

well, I don't want br_tun to have an IP address as I don't want to use GRE
or VXLAN. Does this mean that BOOTPROTO should be none?


Thanks,

		 Uwe

Am 05.03.2015 um 12:13 schrieb Akash Gunjal:
> Hi,
>
> I see that in your ifcfg-br_tun file, the BOOTPROTO is static. You need
to give the IP address, gateway, netmask details in that file.
>
> Regards,
> Akash
>
> Inactive hide details for Uwe Sauter ---03/05/2015 04:08:02 PM---Hi all,
I'm trying to setup Neutron (Juno) on CentOS 7 from RDUwe
> Sauter ---03/05/2015 04:08:02 PM---Hi all, I'm trying to setup Neutron
(Juno) on CentOS 7 from RDO but keep failing. So here are
> some i
>
> From: Uwe Sauter <uwe.sauter.de at gmail.com>
> To: "openstack at lists.openstack.org Openstack"
<openstack at lists.openstack.org>
> Date: 03/05/2015 04:08 PM
> Subject: [Openstack] OpenVSwitch ports won't come up / Neutron
configuration problems
>
>
----------------------------------------------------------------------------------------------------------------------------------

>
>
>
> Hi all,
>
>
> I'm trying to setup Neutron (Juno) on CentOS 7 from RDO but keep failing.
So here are some items I'd like to get your opinion on:
>
> (A graphical overview created with plotnetcfg (
https://github.com/jbenc/plotnetcfg) and gimp'ed together is attached.)
>
> * Hostnames
>  All my nodes have a native hostname that describes the location in my
rack. E.g. os484001 means this is an
>  OpenStack member in rack 48, height unit 40, first node in this height
unit. They then get additional hostnames
>  describing their function like "neutron-controller", "cinder01", etc.,
but only on the DNS server.
>
>  Is this a problem? Do nodes need to be able to resolve all their
hostnames from /etc/hosts? Or should services
>  get configured that native hostname (output from "hostname -s" or even
socket.getfqdn() in Python)?
>
> * Static network interface configuration
>  I have configured all network interfaces
using /etc/sysconfig/network-scripts/ifcfg-<name>. Those that should be
>  part of OVS are configured like:
>
>  /etc/sysconfig/network-scripts/ifcfg-enp6s0
>    NAME=enp6s0
>    HWADDR=00:21:5E:75:70:FA
>    TYPE=OVSPort
>    DEVICETYPE=ovs
>    ONBOOT=yes
>    BOOTPROTO=none
>    OVS_BRIDGE=br_tun
>    IPV4_FAILURE_FATAL=no
>    IPV6INIT=no
>    IPV6_AUTOCONF=no
>    IPV6_DEFROUTE=no
>    IPV6_FAILURE_FATAL=no
>    IPV6_PEERDNS=no
>    IPV6_PEERROUTES=no
>    NM_CONTROLLED=no
>    NOZEROCONF=yes
>
>  Additionally I have configured all needed OVS bridges on compute and
network nodes like:
>  (bridge names contain underscores instead of dashes as the management
scripts don't allow
>  dashes in names)
>
>  /etc/sysconfig/network-scripts/ifcfg-br_tun
>    DEVICE=br_tun
>    ONBOOT=yes
>    BOOTPROTO=static
>    DEVICETYPE=ovs
>    TYPE=OVSBridge
>    NOZEROCONF=yes
>
>  Is this a correct way to configure OVS or do I have to rely on
OpenStack / OVS database to restore the configuration after
>  reboot?
>
> * With above configuration I got the problem that both hardware
interfaces and some OVS bridges are not brought up after reboot.
>
>  What am I doing wrong?
>
> * I want to setup Neutron so that tenant networks are separated by VLANs.
Unfortunately the documentation is sparse to none about
>  this so I get the feeling that GRE tunneling is the most supported way
to separate networks.
>
>  In this VLAN scenario, which OVS bridge needs to be connected to the
physical interface (and therefore 802.1q enabled switch)?
>  br-int or br-tun (which in my case would be br_enp6s0 on the compute
nodes and br_tun on the network node)?
>
>  What else do I need to configure besides:
>
>  /etc/neutron/plugin.ini
>    [ml2]
>    mechanism_drivers = openvswitch
>    tenant_network_types = local,vlan
>    type_drivers = local,vlan
>    [ml2_type_flat]
>    [ml2_type_vlan]
>    network_vlan_ranges = phys-tenant:1501:1510
>    [ml2_type_gre]
>    [ml2_type_vxlan]
>    [securitygroup]
>    enable_ipset = True
>    enable_security_group = True
>    firewall_driver =
neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
>    [ovs]
>    bridge_mappings = phys-external:br_ext,phys-tenant:br_tun
>
>
>
> I'd appreciate every hint.
>
> Regards,
>
> Uwe
> [attachment "Neutron_setup.png" deleted by Akash Gunjal/India/IBM]
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