Understanding BGP misconfiguration
Proceedings of the 2002 conference on Applications, technologies, architectures, and protocols for computer communications
CCFinder: a multilinguistic token-based code clone detection system for large scale source code
IEEE Transactions on Software Engineering
Routing design in operational networks: a look from the inside
Proceedings of the 2004 conference on Applications, technologies, architectures, and protocols for computer communications
A clean slate 4D approach to network control and management
ACM SIGCOMM Computer Communication Review
Detecting BGP configuration faults with static analysis
NSDI'05 Proceedings of the 2nd conference on Symposium on Networked Systems Design & Implementation - Volume 2
Characterizing VLAN usage in an operational network
Proceedings of the 2007 SIGCOMM workshop on Internet network management
Configuration management at massive scale: system design and experience
ATC'07 2007 USENIX Annual Technical Conference on Proceedings of the USENIX Annual Technical Conference
Measurement-based characterization of IP VPNs
IEEE/ACM Transactions on Networking (TON)
Scalable VPN routing via relaying
SIGMETRICS '08 Proceedings of the 2008 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
Shedding light on the glue logic of the internet routing architecture
Proceedings of the ACM SIGCOMM 2008 conference on Data communication
Modeling channel popularity dynamics in a large IPTV system
Proceedings of the eleventh international joint conference on Measurement and modeling of computer systems
Unraveling the complexity of network management
NSDI'09 Proceedings of the 6th USENIX symposium on Networked systems design and implementation
Modeling and understanding end-to-end class of service policies in operational networks
Proceedings of the ACM SIGCOMM 2009 conference on Data communication
Modeling user activities in a large IPTV system
Proceedings of the 9th ACM SIGCOMM conference on Internet measurement conference
Detecting the performance impact of upgrades in large operational networks
Proceedings of the ACM SIGCOMM 2010 conference
California fault lines: understanding the causes and impact of network failures
Proceedings of the ACM SIGCOMM 2010 conference
A new VPN routing approach for large scale networks
ICNP '10 Proceedings of the The 18th IEEE International Conference on Network Protocols
The middlebox manifesto: enabling innovation in middlebox deployment
Proceedings of the 10th ACM Workshop on Hot Topics in Networks
Design and implementation of a consolidated middlebox architecture
NSDI'12 Proceedings of the 9th USENIX conference on Networked Systems Design and Implementation
ACM SIGCOMM Computer Communication Review
Procera: a language for high-level reactive network control
Proceedings of the first workshop on Hot topics in software defined networks
Modeling complexity of enterprise routing design
Proceedings of the 8th international conference on Emerging networking experiments and technologies
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ISPs are increasingly offering a variety of network-based services such as VPN, VPLS, VoIP, Virtual-Wire and DDoS protection. Although both enterprise and residential networks are rapidly adopting these services, there is little systematic work on the design challenges and trade-offs ISPs face in providing them. The goal of our paper is to understand the complexity underlying the layer-3 design of services and to highlight potential factors that hinder their introduction, evolution and management. Using daily snapshots of configuration and device metadata collected from a tier-1 ISP, we examine the logical dependencies and special cases in device configurations for five different network-based services. We find: (1) the design of the core data-plane is usually service-agnostic and simple, but the control-planes for different services become more complex as services evolve; (2) more crucially, the configuration at the service edge inevitably becomes more complex over time, potentially hindering key management issues such as service upgrades and troubleshooting; and (3) there are key service-specific issues that also contribute significantly to the overall design complexity. Thus, the high prevalent complexity could impede the adoption and growth of network-based services. We show initial evidence that some of the complexity can be mitigated systematically.