- Conference Paper
Network verification and configuration synthesis are promising approaches to make networks more reliable and secure by enforcing a set of policies. However, these approaches require a formal and precise description of the intended network behavior, imposing a major barrier to their adoption: network operators are not only reluctant to write formal specifications, but often do not even know what these specifications are. We present Config2Spec, a system that automatically synthesizes a formal specification (a set of policies) of a network given its configuration and a failure model (e.g., up to two link failures). A key technical challenge is to design a synthesis algorithm which can efficiently explore the large space of possible policies. To address this challenge, Config2Spec relies on a careful combination of two well-known methods: data plane analysis and control plane verification. Experimental results show that Config2Spec scales to mining specifications of large networks (>150 routers). Show more
Book titleProceedings of the 17th USENIX Symposium on Networked Systems Design and Implementation
Pages / Article No.
Organisational unit09477 - Vanbever, Laurent / Vanbever, Laurent
03948 - Vechev, Martin / Vechev, Martin
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