openvSwitch 基础命令行

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创建ovs（虚拟交换机） br0

ovs-vsctl add-br br0

创建一根线first_br<->first_if

ip link add first_br type veth peer name first_if

启动线的两个接口

ip link set first_br up
ip link set first_if up

将接口first_br接入虚拟交换机br0

ovs-vsctl add-port br0 first_br

列出网桥的基本信息

ovs-vsctl list Bridge

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root@controller-VirtualBox:~# ovs-vsctl list Bridge
_uuid               : 2a47c03f-4060-4b90-ac24-131dbe051446
auto_attach         : []
controller          : []
datapath_id         : "00003ec0472a904b"
datapath_type       : ""
datapath_version    : "<unknown>"
external_ids        : {}
fail_mode           : []
flood_vlans         : []
flow_tables         : {}
ipfix               : []
mcast_snooping_enable: false
mirrors             : []
name                : "br0"
netflow             : []
other_config        : {}
ports               : [7cb41bb3-ae24-473d-b93a-df5786fb177c, f83add01-bac5-4c63-859c-068a2cd2535d]
protocols           : []
rstp_enable         : false
rstp_status         : {}
sflow               : []
status              : {}
stp_enable          : false

将first_br划分到vlan100中

ovs-vsctl set Port first_br tag=100

查看接口是否加入到vlan100中

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root@controller-VirtualBox:~# ovs-vsctl show
29c5cc05-2a31-4f14-a304-3a697698f96a
    Bridge "br0"
        Port "br0"
            Interface "br0"
                type: internal
        Port first_br
            tag: 100
            Interface first_br
    ovs_version: "2.5.2"
root@controller-VirtualBox

将接口移出vlan

ovs-vsctl clear port first_br tag

将first_br加入trunks中，并且标记tag110

ovs-vsctl add Port first_br trunks 110,120

将trunks信息去除110 tag，剩余120 tag

ovs-vsctl remove Port first_br trunks 110

一次性完全把接口first_br清出trunk

ovs-vsctl clear Port first_br trunks

查看数据库Open_vSwitch内容

ovsdb-client get-schema Open_vSwitch

查看ovs所有数据库内容，并格式化输出

ovsdb-client dump

列出当前ovs工作数据库

ovsdb-client list-dbs

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root@controller-VirtualBox:~# ovsdb-client list-dbs
Open_vSwitch

列出当前ovs工作数据库中的表格

ovsdb-client list-tables Open_vSwitch

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root@controller-VirtualBox:~# ovsdb-client list-tables Open_vSwitch
Table
-------------------------
Controller
Bridge
Queue
IPFIX
NetFlow
Open_vSwitch
QoS
Port
sFlow
SSL
Flow_Sample_Collector_Set
Mirror
Flow_Table
Interface
AutoAttach
Manager

列出Open_vSwitch中表格Port所有类型和范围信息

ovsdb-client list-columns Open_vSwitch Port

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oot@controller-VirtualBox:~# ovsdb-client list-columns Open_vSwitch Port
Column            Type
----------------- -----------------------------------------------------------------------------------------------------
bond_downdelay    "integer"
name              "string"
statistics        {"key":"string","max":"unlimited","min":0,"value":"integer"}
fake_bridge       "boolean"
mac               {"key":"string","min":0}
trunks            {"key":{"maxInteger":4095,"minInteger":0,"type":"integer"},"max":4096,"min":0}
_uuid             "uuid"
tag               {"key":{"maxInteger":4095,"minInteger":0,"type":"integer"},"min":0}
rstp_status       {"key":"string","max":"unlimited","min":0,"value":"string"}
_version          "uuid"
bond_updelay      "integer"
bond_active_slave {"key":"string","min":0}
external_ids      {"key":"string","max":"unlimited","min":0,"value":"string"}
other_config      {"key":"string","max":"unlimited","min":0,"value":"string"}
status            {"key":"string","max":"unlimited","min":0,"value":"string"}
qos               {"key":{"refTable":"QoS","type":"uuid"},"min":0}
bond_mode         {"key":{"enum":["set",["active-backup","balance-slb","balance-tcp"]],"type":"string"},"min":0}
bond_fake_iface   "boolean"
interfaces        {"key":{"refTable":"Interface","type":"uuid"},"max":"unlimited"}
vlan_mode         {"key":{"enum":["set",["access","native-tagged","native-untagged","trunk"]],"type":"string"},"min":0}
rstp_statistics   {"key":"string","max":"unlimited","min":0,"value":"integer"}
lacp              {"key":{"enum":["set",["active","off","passive"]],"type":"string"},"min":0}

列出Port表格的数据信息

ovsdb-client dump Port

查看ovs 接口信息详情

ovs-vsctl list Port

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root@controller-VirtualBox:~# ovs-vsctl list Port
_uuid               : f83add01-bac5-4c63-859c-068a2cd2535d
bond_active_slave   : []
bond_downdelay      : 0
bond_fake_iface     : false
bond_mode           : []
bond_updelay        : 0
external_ids        : {}
fake_bridge         : false
interfaces          : [31edb9df-45bc-45ba-90b9-d9e78211ecc6]
lacp                : []
mac                 : []
name                : first_br
other_config        : {}
qos                 : []
rstp_statistics     : {}
rstp_status         : {}
statistics          : {}
status              : {}
tag                 : []
trunks              : [120]
vlan_mode           : []

_uuid               : 7cb41bb3-ae24-473d-b93a-df5786fb177c
bond_active_slave   : []
bond_downdelay      : 0
bond_fake_iface     : false
bond_mode           : []
bond_updelay        : 0
external_ids        : {}
fake_bridge         : false
interfaces          : [0f86bf9b-c702-481c-b1e6-0919f1d06c2a]
lacp                : []
mac                 : []
name                : "br0"
other_config        : {}
qos                 : []
rstp_statistics     : {}
rstp_status         : {}
statistics          : {}
status              : {}
tag                 : []
trunks              : []
vlan_mode           : []

查看ovs交换机学习到的MAC表项

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root@compute:~# ovs-appctl fdb/show br-int
 port  VLAN  MAC                Age
    3     2  fa:16:3e:1f:95:2c    0
    2     1  fa:16:3e:f3:31:f5    0
    6     1  fa:16:3e:2c:c3:0d    0
    4     2  fa:16:3e:3c:d2:56    0

此命令可运用在normal转发时ovs交换机上，如果ovs交换机没有进行normal转发，请通过openflow表项探究流量转发路径。