继上一期的Nova节点网络逻辑关系，本期继续上一期话题，主要讲Neutron节点上的组件与接口，继续引用“逻辑图”。
1.通过以上图，从网络节点（Neutron）入手，通过使用相关命令去查询一些信息，操作如下：
[root@controller02 ~]# ip a | grep q
4: ovs-system: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN
6: br-int: <BROADCAST,MULTICAST> mtu 1450 qdisc noop state DOWN
11: tapf733605f-e2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc pfifo_fast master ovs-system state UP qlen 1000
12: tapeb25bcee-1b: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc pfifo_fast master ovs-system state UP qlen 1000
13: tap3f46f81b-4f: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc pfifo_fast master ovs-system state UP qlen 1000
18: tap0a0688b4-f8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc pfifo_fast master ovs-system state UP qlen 1000
27: tapfb9f4bc2-30: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc pfifo_fast master ovs-system state UP qlen 1000
39: br-ex: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc noqueue state UNKNOWN
40: eth1.13@eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
41: eth1.2@eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master ovs-system state UP
42: br-tun: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN
43: tapf36b911d-fa: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc pfifo_fast master ovs-system state UP qlen 1000
44: tap4ba24208-80: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc pfifo_fast master ovs-system state UP qlen 1000
从1的命令上可以看到，和Nova一样有两个Linux bridge，还有一些tap接口，还有一些被隐藏的qr，继续用命令查看
2.继续查看ovs的接口信息，操作如下：
[root@controller02 ~]# ovs-vsctl show
2b375334-9ce8-46f2-b5ee-ac60781da7f7
Bridge br-ex
Port "eth1.2"
Interface "eth1.2"
Port "tap4ba24208-80"
Interface "tap4ba24208-80"
Port br-ex
Interface br-ex
type: internal
Bridge br-int
fail_mode: secure
Port "tap0a0688b4-f8"
tag: 1
Interface "tap0a0688b4-f8"
Port patch-tun
Interface patch-tun
type: patch
options: {peer=patch-int}
Port "tapeb25bcee-1b"
tag: 3
Interface "tapeb25bcee-1b"
Port "tap3f46f81b-4f"
tag: 3
Interface "tap3f46f81b-4f"
Port "tapf733605f-e2"
tag: 4095
Interface "tapf733605f-e2"
Port "tapf36b911d-fa"
tag: 4
Interface "tapf36b911d-fa"
Port "tapfb9f4bc2-30"
tag: 4
Interface "tapfb9f4bc2-30"
Port br-int
Interface br-int
type: internal
Bridge br-tun
fail_mode: secure
Port patch-int
Interface patch-int
type: patch
options: {peer=patch-tun}
Port "vxlan-0af80903"
Interface "vxlan-0af80903"
type: vxlan
options: {df_default="true", in_key=flow, local_ip="10.248.9.2", out_key=flow, remote_ip="10.248.9.3"}
Port "vxlan-0af80905"
Interface "vxlan-0af80905"
type: vxlan
options: {df_default="true", in_key=flow, local_ip="10.248.9.2", out_key=flow, remote_ip="10.248.9.5"}
Port "vxlan-0af80901"
Interface "vxlan-0af80901"
type: vxlan
options: {df_default="true", in_key=flow, local_ip="10.248.9.2", out_key=flow, remote_ip="10.248.9.1"}
Port br-tun
Interface br-tun
type: internal
ovs_version: "2.1.3"
从2上可以看到有很多接口，而此次只针对一个路由器和一个HDCP，还有针对以上两网桥进行查看。
3.查询以上两个网桥配置信息，操作如下：
[root@controller02 ~]# ovs-vsctl list-ports br-int
patch-tun
tap0a0688b4-f8
tap3f46f81b-4f
tapeb25bcee-1b
tapf36b911d-fa
tapf733605f-e2
tapfb9f4bc2-30
[root@controller02 ~]# ovs-vsctl list-ports br-tun
patch-int
vxlan-0af80901
vxlan-0af80903
vxlan-0af80905
本文出自 “lucky dog” 博客，请务必保留此出处http://703356.blog.51cto.com/693356/1729523
Neutron与Nova的网络逻辑关系---Neutron节点网络逻辑关系（二）
原文：http://703356.blog.51cto.com/693356/1729523