A Coordinated, Collaborative Approach to DDoS Mitigation
Stopping modern-day DDoS attacks requires the collaboration of enterprises, governments and in-cloud managed security service providers. To help facilitate collaboration and address this complex, growing problem, Arbor Networks created the Cloud Signaling Coalition (CSC).
Based on Arbor’s 12 years of experience solving the DDoS attack problem, Arbor believes that best practice dictates an intelligent, layered approach to DDoS protection -- in other words, a combination of in-cloud and on-premise based DDoS attack mitigation. Members of the Cloud Signaling Coalition endorse the concept of intelligent, layered DDoS Protection – all backed by Arbor products and services:
In the cloud, the powerful combination of Peakflow SP—used for pervasive network visibility and threat detection—along with the Peakflow SP Threat Management System (or “TMS”)—used for surgical mitigation of DDoS attacks—offers the ideal solution for in-cloud DDoS protection.
For the network perimeter, Arbor’s Pravail™ Availability Protection System or “APS” protects the availability of services from application-layer attacks.
And finally, Arbor’s powerful and unique Cloud Signaling feature provides active, intelligent communication between network perimeter and in-cloud based DDoS protection systems.

Together Arbor and Cloud Signaling Coalition members offer the most comprehensive DDoS attack protection in the industry today.
Cloud Signaling Coalition Members
The following are current members of the Cloud Signaling Coalition and their regions of service:
- Neustar ** - Worldwide
- Axtel * - Mexico
- Circular/Depulsio * - Germany
- NextGen Networks* - Australia
- Gen-I* - New Zealand
- Vocus* - Australia
- Adversor
- Aixit
- Allstream
- Bharti Airtel - India
- Colt – Pan Europe
- DU
- Embratel
- FASTWEB
- Jaguar Network
- NexusGuard
- Optus
- Orange Polska
- Starhub
- Swisscom
- Tata Communications
- Telefonica
- TelstraClear
** CSC Select – Can accept cloud signals and has a minimum of 40 Gbps of Mitigation capacity.
* Can accept cloud signals.
Testimonials
"The Cloud Signaling Coalition is another innovative industry initiative from Arbor Networks that facilitates communication and information sharing in order to solve real-world problems, namely, denial of service attacks that threaten the availability of data center resources."
Telefónica España
"Colt's information delivery platform has been relying on Arbor Peakflow to detect and mitigate denial of service threats against our and our customers' infrastructure for over five years. Thanks to Cloud Signaling we are expanding our service's capabilities and ensuring the availability of our managed IT and networking solutions."
Network Strategy and Architecture Director, COLT
"Neustar and Arbor have a long history of collaboration in the area of cloud-based DDoS mitigation. As threats proliferate, hundreds of the largest Internet companies trust Neustar to protect their brands and they look to us for continuous innovation and state-of-the-art solutions to protect their networks from today’s dynamic threats."
Senior Vice President of Enterprise Services, Neustar
"With the various networks we operate, any threats to traffic flow and network availability will have a significant impact to our customers' businesses. That is a risk we cannot afford to take. Working closely with Arbor as a member of the CSC will help us protect our customers and earn their loyalty. Network security is an evolving challenge and a responsibility best fulfilled when shared by peers."
Chief Technology Officer, StarHub