采用python实现SDN流量调度算法
时间: 2023-05-15 22:07:36 浏览: 417
可以回答。以下是一个简单的 Python 实现 SDN 流量调度算法的示例代码:
```python
# 导入必要的库
import networkx as nx
import random
# 创建一个简单的拓扑结构
G = nx.Graph()
G.add_nodes_from(range(1, 6))
G.add_edges_from([(1, 2), (1, 3), (2, 4), (3, 4), (3, 5), (4, 5)])
# 初始化流量矩阵
traffic = [[0 for _ in range(5)] for _ in range(5)]
for i in range(5):
for j in range(5):
if i != j:
traffic[i][j] = random.randint(1, 10)
# 计算最短路径
path = nx.shortest_path(G, source=1, target=5, weight='weight')
# 计算流量矩阵的总和
total_traffic = sum(sum(row) for row in traffic)
# 计算每个链路的带宽
bandwidth = 10
# 计算每个链路的流量
flow = [[0 for _ in range(5)] for _ in range(5)]
for i in range(len(path) - 1):
u, v = path[i], path[i + 1]
flow[u - 1][v - 1] = traffic[u - 1][v - 1]
# 输出结果
print('流量矩阵:')
for row in traffic:
print(row)
print('最短路径:', path)
print('总流量:', total_traffic)
print('链路带宽:', bandwidth)
print('链路流量:')
for row in flow:
print(row)
```
该算法的基本思想是,根据流量矩阵和拓扑结构计算出最短路径,然后根据链路带宽和流量矩阵计算出每个链路的流量。这样就可以实现 SDN 流量调度。
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