1.实验拓扑
拓扑图:
python脚本:
运行python脚本:
连接ryu控制器:
输入net,查看各主机与交换机之间的端口情况:
2.使用Ryu的REST API下发流表实现和第2次实验同样的VLAN
按实验二编写sh脚本
curl -X POST -d '{ "dpid": 1, "priority":1, "match":{ "in_port":1 }, "actions":[ { "type": "PUSH_VLAN", # s1将从主机发来的数据包打上vlan_tag "ethertype": 33024 # 帧类型0x8100(=33024): 表示IEEE 802.1Q的VLAN数据帧 }, { "type": "SET_FIELD", "field": "vlan_vid", # 设置VLAN ID "value": 4096 # 设置vlan_id的值 }, { "type": "OUTPUT", "port": 4 } ] }' http://127.0.0.1:8080/stats/flowentry/add curl -X POST -d '{ "dpid": 1, "priority":1, "match":{ "in_port":2 }, "actions":[ { "type": "PUSH_VLAN", # s1将从主机发来的数据包打上vlan_tag "ethertype": 33024 # 帧类型0x8100(=33024): 表示IEEE 802.1Q的VLAN数据帧 }, { "type": "SET_FIELD", "field": "vlan_vid", # 设置VLAN ID "value": 4097 # 设置vlan_id的值 }, { "type": "OUTPUT", "port": 4 } ] }' http://127.0.0.1:8080/stats/flowentry/add curl -X POST -d '{ "dpid": 1, "priority":1, "match":{ "in_port":3 }, "actions":[ { "type": "PUSH_VLAN", # s1将从主机发来的数据包打上vlan_tag "ethertype": 33024 # 帧类型0x8100(=33024): 表示IEEE 802.1Q的VLAN数据帧 }, { "type": "SET_FIELD", "field": "vlan_vid", # 设置VLAN ID "value": 4098 # 设置vlan_id的值 }, { "type": "OUTPUT", "port": 4 } ] }' http://127.0.0.1:8080/stats/flowentry/add curl -X POST -d '{ "dpid": 1, "priority":1, "match":{ "dl_vlan": "0" }, "actions":[ { "type": "POP_VLAN", # 给进入交换机的包去除 vlan_tag }, { "type": "OUTPUT", "port": 1 } ] }' http://localhost:8080/stats/flowentry/add curl -X POST -d '{ "dpid": 1, "priority":1, "match":{ "dl_vlan": "1" }, "actions":[ { "type": "POP_VLAN", # 给进入交换机的包去除 vlan_tag }, { "type": "OUTPUT", "port": 2 } ] }' http://localhost:8080/stats/flowentry/add curl -X POST -d '{ "dpid": 1, "priority":1, "match":{ "dl_vlan": "2" }, "actions":[ { "type": "POP_VLAN", # 给进入交换机的包去除 vlan_tag }, { "type": "OUTPUT", "port": 3 } ] }' http://localhost:8080/stats/flowentry/add curl -X POST -d '{ "dpid": 2, "priority":1, "match":{ "in_port":1 }, "actions":[ { "type": "PUSH_VLAN", # s1将从主机发来的数据包打上vlan_tag "ethertype": 33024 # 帧类型0x8100(=33024): 表示IEEE 802.1Q的VLAN数据帧 }, { "type": "SET_FIELD", "field": "vlan_vid", # 设置VLAN ID "value": 4096 # 设置vlan_id的值 }, { "type": "OUTPUT", "port": 4 } ] }' http://127.0.0.1:8080/stats/flowentry/add curl -X POST -d '{ "dpid": 2, "priority":1, "match":{ "in_port":2 }, "actions":[ { "type": "PUSH_VLAN", # s1将从主机发来的数据包打上vlan_tag "ethertype": 33024 # 帧类型0x8100(=33024): 表示IEEE 802.1Q的VLAN数据帧 }, { "type": "SET_FIELD", "field": "vlan_vid", # 设置VLAN ID "value": 4097 # 设置vlan_id的值 }, { "type": "OUTPUT", "port": 4 } ] }' http://127.0.0.1:8080/stats/flowentry/add curl -X POST -d '{ "dpid": 2, "priority":1, "match":{ "in_port":3 }, "actions":[ { "type": "PUSH_VLAN", # s1将从主机发来的数据包打上vlan_tag "ethertype": 33024 # 帧类型0x8100(=33024): 表示IEEE 802.1Q的VLAN数据帧 }, { "type": "SET_FIELD", "field": "vlan_vid", # 设置VLAN ID "value": 4098 # 设置vlan_id的值 }, { "type": "OUTPUT", "port": 4 } ] }' http://127.0.0.1:8080/stats/flowentry/add curl -X POST -d '{ "dpid": 2, "priority":1, "match":{ "dl_vlan": "0" }, "actions":[ { "type": "POP_VLAN", # 给进入交换机的包去除 vlan_tag }, { "type": "OUTPUT", "port": 1 } ] }' http://localhost:8080/stats/flowentry/add curl -X POST -d '{ "dpid": 2, "priority":1, "match":{ "dl_vlan": "1" }, "actions":[ { "type": "POP_VLAN", # 给进入交换机的包去除 vlan_tag }, { "type": "OUTPUT", "port": 2 } ] }' http://localhost:8080/stats/flowentry/add curl -X POST -d '{ "dpid": 2, "priority":1, "match":{ "dl_vlan": "2" }, "actions":[ { "type": "POP_VLAN", # 给进入交换机的包去除 vlan_tag }, { "type": "OUTPUT", "port": 3 } ] }' http://localhost:8080/stats/flowentry/add
执行脚本:
查看s1,s2下发流表:
使用pingall检查连接完整性:
3.对比两种方法,写出你的实验体会
相比于第二次实验,这次试验使用Ryu的REST API下发流表实现VLAN,代码的可视性更好,条理清晰,便于修改,不会像实验二一般错了就要需要重新编写。