{{infobox company| company name | Sandvine Incorporated | company_logo 150px|Sandvine Logo | company_type Public | company_slogan Intelligent Broadband Networks | foundation Waterloo, Ontario (2001) | key_people Dave Caputo, Co-Founder, President and CEOScott Hamilton, CFOTom Donnely, Co-Founder, EVP Marketing & SalesBrad Siim, Co-Founder, COO and VP EngineeringDon Bowman, Co-Founder, CTO| location Waterloo, Ontario | industry Networking Hardware and Software| market cap $111M USD| homepage www.sandvine.com }} |
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Sandvine Incorporated (, ), is a networking equipment company based in Waterloo, Ontario, Canada. Sandvine network policy control products are designed to implement broad network policies, ranging from service creation, billing, congestion management, and security. Sandvine targets its products at consumer Tier 1 and Tier 2 networks including cable, DSL, and mobile.
In March 2006 Sandvine completed an initial public offering on the London AIM exchange under the ticker 'SAND'. In October 2006 Sandvine completed an initial public offering on the Toronto stock exchange under the ticker 'SVC'.
Initial product sales focused at congestion management as operators struggled with the high growth of broadband. Many operators have shifted focus to revenue generating services and reducing operational expenditure.
Rather than identifying individual messages, spam control is based on identifying sources of spam from behaviors such as using multiple SMTP servers, using multiple source (EHLO) domains and large address books.
Quality of service control is provided for a range of media applications including video conferencing, VoIP and gaming.
The P2P path optimizer focuses on Gnutella, and uses a path cost algorithm to reduce congestion while still delivering the same content. Stateful Policy Management uses stateful deep-packet inspection and packet spoofing to allow the networking device to determine the details of the p2p conversation, including the hash requested. The device can then determine the optimal peer to use, and substitute it for the one selected by the P2P algorithm, by "[sitting] in the middle, imitating both ends of the connection, and sending reset packets to both client and server."
The usage-based-billing includes pre-paid and post-paid 3G and 4G mobile access, as well as all fixed access.
According to independent testing, Comcast injected reset packets into peer-to-peer connections, which effectively caused a certain limited number of outbound connections to immediately terminate. This method of network management was described in the IEEE Communications, May 2000 article "Nonintrusive TCP Connection Admission Control for Bandwidth Management of an Internet Access Link".
A product whitepaper published by Sandvine confirms that its products are configurable to use "Session Management" capability to prevent customers using BitTorrent from providing uploads to peers who are not close to them on the network. This affects all uses of BitTorrent (such as open-source project distribution, patch distribution and illegal downloads).
In cases where a subscriber is a “seeder” and uploads content to an off net “leecher”, session management is an effective strategy... the subscriber may be session managed without negative impact. This is the default behaviour for Sandvine’s session management policy and limits external leechers from connecting to internal seeds.
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