关键词: 自治域, 可信可控网络, 流测量, 合作流测量, 覆盖度测量

Abstract: The flow measurement algorithms under current network environment are lack of cooperation, thus the coverage of monitored flow is low. To solve this problem, a new cooperative flow monitoring model based on trustworthy and controllable network was proposed. This model realized cross-AS (Autonomous System) cooperative flow monitoring by packet marking and result sharing, and optimized the flow monitoring coverage through distributing monitoring responsibility across routers by control node in each AS. The comparison with the previous work in an experiment verifies that this model makes the best use of network resource, balances the monitoring overhead of each router, and improves monitoring coverage, and also has better performance than previous methods.

Key words: Autonomous System (AS), trustworthy and controllable network, flow monitoring, cooperative flow monitoring, coverage monitoring