实验7:基于REST API的SDN北向应用实践
一、实验目的
- 能够编写程序调用OpenDaylight REST API实现特定网络功能;
- 能够编写程序调用Ryu REST API实现特定网络功能。
二、实验环境
- 下载虚拟机软件Oracle VisualBox或VMware;
- 在虚拟机中安装Ubuntu 20.04 Desktop amd64,并完整安装Mininet、OpenDaylight(Carbon版本)、Postman和Ryu;
三、实验要求
(一)基本要求
-
编写Python程序,调用OpenDaylight的北向接口实现以下功能
(1) 利用Mininet平台搭建下图所示网络拓扑,并连接OpenDaylight; - 使用命令
./distribution-karaf-0.6.4-Carbon/bin/karaf
打开ODL控制器 - 使用命令
sudo mn --topo=single,3 --controller=remote,ip=127.0.0.1,port=6633 --switch ovsk,protocols=OpenFlow13
创建拓扑并连接控制 (2) 下发指令删除s1上的流表数据。
#!/usr/bin/python import requests from requests.auth import HTTPBasicAuth if __name__ == "__main__": url = 'http://127.0.0.1:8181/restconf/config/opendaylight-inventory:nodes/node/openflow:1/' headers = {'Content-Type': 'application/json'} res = requests.delete(url, headers=headers, auth=HTTPBasicAuth('admin', 'admin')) print (res.content)
(3) 下发硬超时流表,实现拓扑内主机h1和h3网络中断20s。
#!/usr/bin/python import requests from requests.auth import HTTPBasicAuth if __name__ == "__main__": url = 'http://127.0.0.1:8181/restconf/config/opendaylight-inventory:nodes/node/openflow:1/flow-node-inventory:table/0/flow/1' with open("./flowtimeout.json") as file: str = file.read() headers = {'Content-Type': 'application/json'} res = requests.put(url, str, headers=headers, auth=HTTPBasicAuth('admin', 'admin')) print (res.content)
json文件:
{ "flow": [ { "id": "1", "match": { "in-port": "1", "ethernet-match": { "ethernet-type": { "type": "0x0800" } }, "ipv4-destination": "10.0.0.3/32" }, "instructions": { "instruction": [ { "order": "0", "apply-actions": { "action": [ { "order": "0", "drop-action": {} } ] } } ] }, "flow-name": "flow", "priority": "65535", "hard-timeout": "20", "cookie": "2", "table_id": "0" } ] }
(4) 获取s1上活动的流表数。
#!/usr/bin/python import requests from requests.auth import HTTPBasicAuth if __name__ == "__main__": url = 'http://127.0.0.1:8181/restconf/operational/opendaylight-inventory:nodes/node/openflow:1/flow-node-inventory:table/0/opendaylight-flow-table-statistics:flow-table-statistics' headers = {'Content-Type': 'application/json'} res = requests.get(url,headers=headers, auth=HTTPBasicAuth('admin', 'admin')) print (res.content)
编写Python程序,调用Ryu的北向接口实现以下功能
(1) 实现上述OpenDaylight实验拓扑上相同的硬超时流表下发。-
关闭ODL控制器,关闭上次的拓扑并清除拓扑后
-
使用命令
ryu-manager ryu.app.simple_switch_13 ryu.app.ofctl_rest
打开Ryu控制器 -
使用命令
sudo mn --topo=single,3 --mac --controller=remote,ip=127.0.0.1,port=6633 --switch ovsk,protocols=OpenFlow13
创建拓扑 -
#!/usr/bin/python import requests if __name__ == "__main__": url = 'http://127.0.0.1:8080/stats/flowentry/add' with open("./hardtimeout.json") as file: str = file.read() headers = {'Content-Type': 'application/json'} res = requests.post(url, str, headers=headers) print (res.content)
json文件:
-
{ "dpid": 1, "cookie": 1, "cookie_mask": 1, "table_id": 0, "hard_timeout": 20, "priority": 65535, "flags": 1, "match":{ "in_port":1 }, "actions":[
]
}
(2) 参考Ryu REST API的文档,基于VLAN实验的网络拓扑,编程实现相同的VLAN配置。
提示:拓扑生成后需连接Ryu,且Ryu应能够提供REST API服务 -
#topo.py from mininet.topo import Topo
class MyTopo(Topo):
def init(self):
# initilaize topology
Topo.init(self)self.addSwitch(</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">s1</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5;">) self.addSwitch(</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">s2</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5;">) self.addHost(</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">h1</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5;">) self.addHost(</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">h2</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5;">) self.addHost(</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">h3</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5;">) self.addHost(</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">h4</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5;">) self.addLink(</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">s1</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span>, <span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">h1</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5;">) self.addLink(</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">s1</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span>, <span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">h2</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5;">) self.addLink(</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">s2</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span>, <span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">h3</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5;">) self.addLink(</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">s2</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span>, <span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">h4</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5;">) self.addLink(</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">s1</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span>, <span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">s2</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5;">)
topos = {'mytopo': (lambda: MyTopo())}
-
关闭控制器,关闭上一次实验的拓扑并清除拓扑
-
使用命令
ryu-manager ryu.app.simple_switch_13 ryu.app.ofctl_rest
打开Ryu控制器 -
使用命令
sudo mn --custom topo.py --topo mytopo --mac --controller=remote,ip=127.0.0.1,port=6633 --switch ovsk,protocols=OpenFlow13
创建拓扑 VLAN_ID Hosts 0 h1 h3 1 h2 h4 -
使用命令
-
curl -X DELETE http://127.0.0.1:8080/stats/flowentry/clear/1
-
curl -X DELETE http://127.0.0.1:8080/stats/flowentry/clear/2
-
删除流表
-
使用命令python运行下列程序
-
#!/usr/bin/python import json
import requests
if name == "main":
url = 'http://127.0.0.1:8080/stats/flowentry/add'
headers = {'Content-Type': 'application/json'}
flow1 = {
"dpid": 1,
"priority": 1,
"match":{
"in_port": 1
},
"actions":[
{
"type": "PUSH_VLAN",
"ethertype": 33024
},
{
"type": "SET_FIELD",
"field": "vlan_vid",
"value": 4096
},
{
"type": "OUTPUT",
"port": 3
}
]
}
flow2 = {
"dpid": 1,
"priority": 1,
"match":{
"in_port": 2
},
"actions":[
{
"type": "PUSH_VLAN",
"ethertype": 33024
},
{
"type": "SET_FIELD",
"field": "vlan_vid",
"value": 4097
},
{
"type": "OUTPUT",
"port": 3
}
]
}
flow3 = {
"dpid": 1,
"priority": 1,
"match":{
"vlan_vid": 0
},
"actions":[
{
"type": "POP_VLAN",
"ethertype": 33024
},
{
"type": "OUTPUT",
"port": 1
}
]
}
flow4 = {
"dpid": 1,
"priority": 1,
"match": {
"vlan_vid": 1
},
"actions": [
{
"type": "POP_VLAN",
"ethertype": 33024
},
{
"type": "OUTPUT",
"port": 2
}
]
}
flow5 = {
"dpid": 2,
"priority": 1,
"match": {
"in_port": 1
},
"actions": [
{
"type": "PUSH_VLAN",
"ethertype": 33024
},
{
"type": "SET_FIELD",
"field": "vlan_vid",
"value": 4096
},
{
"type": "OUTPUT",
"port": 3
}
]
}
flow6 = {
"dpid": 2,
"priority": 1,
"match": {
"in_port": 2
},
"actions": [
{
"type": "PUSH_VLAN",
"ethertype": 33024
},
{
"type": "SET_FIELD",
"field": "vlan_vid",
"value": 4097
},
{
"type": "OUTPUT",
"port": 3
}
]
}
flow7 = {
"dpid": 2,
"priority": 1,
"match": {
"vlan_vid": 0
},
"actions": [
{
"type": "POP_VLAN",
"ethertype": 33024
},
{
"type": "OUTPUT",
"port": 1
}
]
}
flow8 = {
"dpid": 2,
"priority": 1,
"match": {
"vlan_vid": 1
},
"actions": [
{
"type": "POP_VLAN",
"ethertype": 33024
},
{
"type": "OUTPUT",
"port": 2
}
]
}
res1 = requests.post(url, json.dumps(flow1), headers=headers)
res2 = requests.post(url, json.dumps(flow2), headers=headers)
res3 = requests.post(url, json.dumps(flow3), headers=headers)
res4 = requests.post(url, json.dumps(flow4), headers=headers)
res5 = requests.post(url, json.dumps(flow5), headers=headers)
res6 = requests.post(url, json.dumps(flow6), headers=headers)
res7 = requests.post(url, json.dumps(flow7), headers=headers)
res8 = requests.post(url, json.dumps(flow8), headers=headers) -
四、个人总结
这次实验有较大的难度也比较综合,用到了之前OpenDaylight和Ryu的相关知识,但是叶通过这次实验进一步学习了用OpenDaylight和Ryu的rest API来实现特定的网络功能,除此之外还进一步学习了python的request库,也为以后打下可基础
-
-
-
(2) 下发指令删除s1上的流表数据。
![复制代码](https://common.cnblogs.com/images/copycode.gif)
#!/usr/bin/python import requests from requests.auth import HTTPBasicAuth if __name__ == "__main__": url = 'http://127.0.0.1:8181/restconf/config/opendaylight-inventory:nodes/node/openflow:1/' headers = {'Content-Type': 'application/json'} res = requests.delete(url, headers=headers, auth=HTTPBasicAuth('admin', 'admin')) print (res.content)
![复制代码](https://common.cnblogs.com/images/copycode.gif)
(3) 下发硬超时流表,实现拓扑内主机h1和h3网络中断20s。
![复制代码](https://common.cnblogs.com/images/copycode.gif)
#!/usr/bin/python import requests from requests.auth import HTTPBasicAuth if __name__ == "__main__": url = 'http://127.0.0.1:8181/restconf/config/opendaylight-inventory:nodes/node/openflow:1/flow-node-inventory:table/0/flow/1' with open("./flowtimeout.json") as file: str = file.read() headers = {'Content-Type': 'application/json'} res = requests.put(url, str, headers=headers, auth=HTTPBasicAuth('admin', 'admin')) print (res.content)
![复制代码](https://common.cnblogs.com/images/copycode.gif)
json文件:
![复制代码](https://common.cnblogs.com/images/copycode.gif)
{ "flow": [ { "id": "1", "match": { "in-port": "1", "ethernet-match": { "ethernet-type": { "type": "0x0800" } }, "ipv4-destination": "10.0.0.3/32" }, "instructions": { "instruction": [ { "order": "0", "apply-actions": { "action": [ { "order": "0", "drop-action": {} } ] } } ] }, "flow-name": "flow", "priority": "65535", "hard-timeout": "20", "cookie": "2", "table_id": "0" } ] }
![复制代码](https://common.cnblogs.com/images/copycode.gif)
(4) 获取s1上活动的流表数。
![复制代码](https://common.cnblogs.com/images/copycode.gif)
#!/usr/bin/python import requests from requests.auth import HTTPBasicAuth if __name__ == "__main__": url = 'http://127.0.0.1:8181/restconf/operational/opendaylight-inventory:nodes/node/openflow:1/flow-node-inventory:table/0/opendaylight-flow-table-statistics:flow-table-statistics' headers = {'Content-Type': 'application/json'} res = requests.get(url,headers=headers, auth=HTTPBasicAuth('admin', 'admin')) print (res.content)
![复制代码](https://common.cnblogs.com/images/copycode.gif)
编写Python程序,调用Ryu的北向接口实现以下功能
(1) 实现上述OpenDaylight实验拓扑上相同的硬超时流表下发。
-
关闭ODL控制器,关闭上次的拓扑并清除拓扑后
-
使用命令
ryu-manager ryu.app.simple_switch_13 ryu.app.ofctl_rest
打开Ryu控制器 -
使用命令
sudo mn --topo=single,3 --mac --controller=remote,ip=127.0.0.1,port=6633 --switch ovsk,protocols=OpenFlow13
创建拓扑 -
#!/usr/bin/python import requests if __name__ == "__main__": url = 'http://127.0.0.1:8080/stats/flowentry/add' with open("./hardtimeout.json") as file: str = file.read() headers = {'Content-Type': 'application/json'} res = requests.post(url, str, headers=headers) print (res.content)
json文件:
-
{ "dpid": 1, "cookie": 1, "cookie_mask": 1, "table_id": 0, "hard_timeout": 20, "priority": 65535, "flags": 1, "match":{ "in_port":1 }, "actions":[
]
}
(2) 参考Ryu REST API的文档,基于VLAN实验的网络拓扑,编程实现相同的VLAN配置。
提示:拓扑生成后需连接Ryu,且Ryu应能够提供REST API服务 -
#topo.py from mininet.topo import Topo
class MyTopo(Topo):
def init(self):
# initilaize topology
Topo.init(self)self.addSwitch(</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">s1</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5;">) self.addSwitch(</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">s2</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5;">) self.addHost(</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">h1</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5;">) self.addHost(</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">h2</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5;">) self.addHost(</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">h3</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5;">) self.addHost(</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">h4</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5;">) self.addLink(</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">s1</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span>, <span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">h1</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5;">) self.addLink(</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">s1</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span>, <span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">h2</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5;">) self.addLink(</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">s2</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span>, <span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">h3</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5;">) self.addLink(</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">s2</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span>, <span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">h4</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5;">) self.addLink(</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">s1</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span>, <span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">s2</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5; color: #800000;">"</span><span style="font-family: 'Courier New', serif; font-size: inherit; line-height: 1.5;">)
topos = {'mytopo': (lambda: MyTopo())}
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关闭控制器,关闭上一次实验的拓扑并清除拓扑
-
使用命令
ryu-manager ryu.app.simple_switch_13 ryu.app.ofctl_rest
打开Ryu控制器 -
使用命令
sudo mn --custom topo.py --topo mytopo --mac --controller=remote,ip=127.0.0.1,port=6633 --switch ovsk,protocols=OpenFlow13
创建拓扑 VLAN_ID Hosts 0 h1 h3 1 h2 h4 -
使用命令
-
curl -X DELETE http://127.0.0.1:8080/stats/flowentry/clear/1
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curl -X DELETE http://127.0.0.1:8080/stats/flowentry/clear/2
-
删除流表
-
使用命令python运行下列程序
-
#!/usr/bin/python import json
import requests
if name == "main":
url = 'http://127.0.0.1:8080/stats/flowentry/add'
headers = {'Content-Type': 'application/json'}
flow1 = {
"dpid": 1,
"priority": 1,
"match":{
"in_port": 1
},
"actions":[
{
"type": "PUSH_VLAN",
"ethertype": 33024
},
{
"type": "SET_FIELD",
"field": "vlan_vid",
"value": 4096
},
{
"type": "OUTPUT",
"port": 3
}
]
}
flow2 = {
"dpid": 1,
"priority": 1,
"match":{
"in_port": 2
},
"actions":[
{
"type": "PUSH_VLAN",
"ethertype": 33024
},
{
"type": "SET_FIELD",
"field": "vlan_vid",
"value": 4097
},
{
"type": "OUTPUT",
"port": 3
}
]
}
flow3 = {
"dpid": 1,
"priority": 1,
"match":{
"vlan_vid": 0
},
"actions":[
{
"type": "POP_VLAN",
"ethertype": 33024
},
{
"type": "OUTPUT",
"port": 1
}
]
}
flow4 = {
"dpid": 1,
"priority": 1,
"match": {
"vlan_vid": 1
},
"actions": [
{
"type": "POP_VLAN",
"ethertype": 33024
},
{
"type": "OUTPUT",
"port": 2
}
]
}
flow5 = {
"dpid": 2,
"priority": 1,
"match": {
"in_port": 1
},
"actions": [
{
"type": "PUSH_VLAN",
"ethertype": 33024
},
{
"type": "SET_FIELD",
"field": "vlan_vid",
"value": 4096
},
{
"type": "OUTPUT",
"port": 3
}
]
}
flow6 = {
"dpid": 2,
"priority": 1,
"match": {
"in_port": 2
},
"actions": [
{
"type": "PUSH_VLAN",
"ethertype": 33024
},
{
"type": "SET_FIELD",
"field": "vlan_vid",
"value": 4097
},
{
"type": "OUTPUT",
"port": 3
}
]
}
flow7 = {
"dpid": 2,
"priority": 1,
"match": {
"vlan_vid": 0
},
"actions": [
{
"type": "POP_VLAN",
"ethertype": 33024
},
{
"type": "OUTPUT",
"port": 1
}
]
}
flow8 = {
"dpid": 2,
"priority": 1,
"match": {
"vlan_vid": 1
},
"actions": [
{
"type": "POP_VLAN",
"ethertype": 33024
},
{
"type": "OUTPUT",
"port": 2
}
]
}
res1 = requests.post(url, json.dumps(flow1), headers=headers)
res2 = requests.post(url, json.dumps(flow2), headers=headers)
res3 = requests.post(url, json.dumps(flow3), headers=headers)
res4 = requests.post(url, json.dumps(flow4), headers=headers)
res5 = requests.post(url, json.dumps(flow5), headers=headers)
res6 = requests.post(url, json.dumps(flow6), headers=headers)
res7 = requests.post(url, json.dumps(flow7), headers=headers)
res8 = requests.post(url, json.dumps(flow8), headers=headers)
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-