Cisco Contributes to Open Source

Cisco has contributed more than 40 "givebacks" of open source software over the past three decades. Cisco collaborates with the open source community to reduce time-to-market for Cisco solutions, and to help partners develop applications designed to enhance the collaborative experience.

• Cisco Engineers Win Awards for Open Source Spam Filtering
  Apache SpamAssassin is an award-winning, configurable, PERL-based open source software application used for e-mail spam filtering.
• Cisco, Atmel, and SICS Create Open-Source, IPv6-Ready Stack
  Julien Abeille and Mathilde Durvy of Cisco collaborated with Atmel and the SICS to create uIPv6, one of the world's smallest open-source, IPv6-ready protocol stacks.
• IronPort: Demonstrating the Cisco Commitment to Open Source
  The acquisition of IronPort strengthens Cisco leadership in information security and open source software development, and shows how Cisco gives back to the open source community.
• Jabber: Open Instant Messaging and Real-Time Collaboration
  For more than 10 years, Jabber technologies have been synonymous with open instant messaging, presence, XML routing, and real-time collaboration.
• MPEG-4 over SCTP: Building Open Source on Open Standards
  Cisco contributed to System Control Transport Protocol (SCTP) as an open standard and as open source, with a kernel implementation of SCTP for the FreeBSD, NetBSD, and OpenBSD.
• ReSIProcate: Secure, Interoperable Open Source SIP
  Cisco Distinguished Engineer Cullen Jennings discusses ReSIProcate, one of the most widely-used System Interrupt Protocol (SIP) Stacks.
• TM Forum Interface Program: Lowering Integration Costs
  TM Forum Interface Program specifies common interfaces between networks and their support systems to reduce integration costs for telecommunications management.
• InfiniBand and Linux for Open Source Software Development
  The Linux kernel is a foremost example of cooperative open source software projects, relying on contributions from thousands of programmers worldwide.
• Eclipse Tigerstripe: Sharing MDE Discoveries
  Cisco shared lessons learned from using Model-Driven Engineering (MDE) to accelerate network technology development with the networking community through the Tigerstripe Project.