SDN第三次上机作业

实验步骤

1.创建以下拓扑(可采用任意方式)

提交要求:截图证明拓扑的正确性

2.利用OVS命令下发流表,实现VLAN功能

参考链接:http://blog.csdn.net/rocson001/article/details/73163041
提交要求:贴出OVS下发流表的命令

# 将主机1,2,3进入sw1的包打上vlan tag,转发端口4
sudo ovs-ofctl -O OpenFlow13 add-flow sw1 priority=1,in_port=1,actions=push_vlan:0x8100,set_field:4096-\>vlan_vid,output:4
sudo ovs-ofctl -O OpenFlow13 add-flow sw1 priority=1,in_port=2,actions=push_vlan:0x8100,set_field:4097-\>vlan_vid,output:4
sudo ovs-ofctl -O OpenFlow13 add-flow sw1 priority=1,in_port=3,actions=push_vlan:0x8100,set_field:4098-\>vlan_vid,output:4
# 将从端口4的包去除vlan tag, 并根据tag进行转发
sudo ovs-ofctl -O OpenFlow13 add-flow sw1 priority=1,dl_vlan=0,actions=pop_vlan,output:1
sudo ovs-ofctl -O OpenFlow13 add-flow sw1 priority=1,dl_vlan=1,actions=pop_vlan,output:2
sudo ovs-ofctl -O OpenFlow13 add-flow sw1 priority=1,dl_vlan=2,actions=pop_vlan,output:3
# 将主机4,5,6进入sw2的包打上vlan tag,转发端口4
sudo ovs-ofctl -O OpenFlow13 add-flow sw2 priority=1,in_port=1,actions=push_vlan:0x8100,set_field:4096-\>vlan_vid,output:4
sudo ovs-ofctl -O OpenFlow13 add-flow sw2 priority=1,in_port=2,actions=push_vlan:0x8100,set_field:4097-\>vlan_vid,output:4
sudo ovs-ofctl -O OpenFlow13 add-flow sw2 priority=1,in_port=3,actions=push_vlan:0x8100,set_field:4098-\>vlan_vid,output:4
# 将从端口4的包去除vlan tag, 并根据tag进行转发
sudo ovs-ofctl -O OpenFlow13 add-flow sw2 priority=1,dl_vlan=0,actions=pop_vlan,output:1
sudo ovs-ofctl -O OpenFlow13 add-flow sw2 priority=1,dl_vlan=1,actions=pop_vlan,output:2
sudo ovs-ofctl -O OpenFlow13 add-flow sw2 priority=1,dl_vlan=2,actions=pop_vlan,output:3

3.利用OVS命令查看流表

参考链接:http://blog.csdn.net/rocson001/article/details/73163041
提交要求:截图查看步骤2所下发的流表

4.验证性测试

截图验证:

h1--h4互通
h2--h5互通
h3--h6互通
其余主机间无法通信
如图所示:

5.Wireshark抓包验证

提交要求:使用wireshark抓取,包含有VLAN tag的数据包,并截图验证

如图所示:

posted on 2017-12-18 12:47  Rahkah  阅读(140)  评论(0编辑  收藏  举报

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