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openstack-flat 网络问题
使用packstack安装，版本为M，默认为vxlan网络， 操作系统为centos7.
由于学习的需要修改为flat网络。
首先修改配置文件：
/etc/neutron/plugins/ml2/ml2_conf.ini
type_drivers = flat
tenant_network_types =flat
mechanism_drivers =openvswitch
flat_networks = physnet1
然后修改/etc/neutron/plugins/ml2/openvswitch_agent.ini
bridge_mappings = physnet1:br-phy
增加ovs br-phy,并且绑定对外端口：
[root@myopenstack ml2]# ovs-vsctl show73bdadc0-287a-4c0f-9c54-6ad6fb575347 Bridge br-ex Port "qg-2ccfa701-cd" Interface "qg-2ccfa701-cd" type: internal Port br-ex Interface br-ex type: internal Bridge br-phy Port "enp0s3" Interface "enp0s3" Port phy-br-phy Interface phy-br-phy type: patch options: {peer=int-br-phy} Port br-phy Interface br-phy type: internal然后重启service： neutron-server neutron-dhcp-agent neutron-openvswitch-agent
创建网络：
创建一个instance，使用这个网络。
但是instance创建完成后，不能够与外界通信。
自己尝试分析原因：
[root@myopenstack ml2]# brctl show
bridge name bridge id STP enabled interfaces
qbr187d132b-9d 8000.ce4f9fccba4d no qvb187d132b-9d
tap187d132b-9d
instance创建一个linux bridge, 端口为qvb187d132b-9d。
[root@myopenstack ml2]# ovs-vsctl show73bdadc0-287a-4c0f-9c54-6ad6fb575347 Bridge br-ex Port "qg-2ccfa701-cd" Interface "qg-2ccfa701-cd" type: internal Port br-ex Interface br-ex type: internal Bridge br-phy Port "enp0s3" Interface "enp0s3" Port phy-br-phy Interface phy-br-phy type: patch options: {peer=int-br-phy} Port br-phy Interface br-phy type: internal Bridge br-tun fail_mode: secure Port br-tun Interface br-tun type: internal Port patch-int Interface patch-int type: patch options: {peer=patch-tun} Bridge br-flat Port br-flat Interface br-flat type: internal Port phy-br-flat Interface phy-br-flat type: patch options: {peer=int-br-flat} Bridge br-int fail_mode: secure Port int-br-phy Interface int-br-phy type: patch options: {peer=phy-br-phy} Port "int-br-eth0" Interface "int-br-eth0" type: patch options: {peer="phy-br-eth0"} Port br-int Interface br-int type: internal Port "tap239b2780-1b" tag: 2 Interface "tap239b2780-1b" type: internal Port int-br-flat Interface int-br-flat type: patch options: {peer=phy-br-flat} Port "qvo187d132b-9d" tag: 1 Interface "qvo187d132b-9d" Port "qr-9e110b6b-5d" tag: 2 Interface "qr-9e110b6b-5d" type: internal Port "tap2b05a39d-da" tag: 1 Interface "tap2b05a39d-da" type: internal Port patch-tun Interface patch-tun type: patch options: {peer=patch-int} ovs_version: "2.5.0"
linux bridge 连接到bridage br-int 而不是预期的 bridge br-phy.
谁能帮忙看看这个问题的原因何在？
非常感谢。
openstack-flat 网络问题