CCNx Replaces named hosts with named content
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content hosts named named hosts named content

CCNx Description

Replaces named hosts with named content CCNx is an open source project exploring the next step in networking, based on one fundamental architectural change: replacing named hosts with named content as the primary abstraction. CCNx was launched with ideas from PARC's Content-Centric Networking (CCN) research program. The PARC CCN architecture takes content as a primitive and decouples location from identity, security, and access, with no concept of host/machine at the lowest level. We believe that such a focus on what not where addresses today's communication problems better than the traditional model of packet networking, yet can preserve design decisions that made TCP/IP simple, robust, and scalable. Project CCNx is a vehicle for sharing these ideas with the research community.Please note that the CCNx specifications and software are being released at a very early stage of development to foster interaction with other researchers. What is available now is pure infrastructure, with no applications to demonstrate the potential benefits, and it demands a great deal of technical sophistication and dedication to use. If you're looking for cool applications that are ready to run, or a solid platform to start building on, you are a little too early. We intend to keep developing towards those goals, but we are intentionally not there yet. What's New in This Release: · Changes to crypto implementation for compatibility with older versions of BouncyCastle and configurations with varied crypto support. Also improved handling of crypto providers. · Added stopall argument to ccn_repo command to stop all running repos on machine. · Turned off ccnd message about heartbeats by default (use CCND_DEBUG=128 to get these messages back). · Fixed ccnput to allow name components after the version marker, generate FinalBlockID where appropriate. · Added support for file segmentation convention to ccncatchunks2. · Centralized timeout definitions in Java library to SystemConfiguration. · Improved VLC plugin, incl. using name "ccnx", supporting versioned files. · Small improvements to ContentExplorer such as option to save a file to filesystem. · Enlarged time scale for C test_scale to reduce chance of spurious failure. · Added scripts for running experiments with content distribution. · Handle null return from readLine for binary decoding in Java library (#100025). · Improvements to CCNFilterListener support in Java library (#100027). · Improvements to repo performance (#100017) Issues Resolved: · Bug #100009 Repository makes duplicate data requests. · Bug #100014 Update code to use IANA allocated port. Replaced temporary port number with registered ccnx port number 9695. See http://www.iana.org/assignments/port-numbers · Bug #100015 ccndc only processes last command in config file. · Bug #100016 Repo should not process each piece of content as a potential policy update. · Bug #100019 Incorrect marker byte used for enumeration, repo protocols. · Bug #100021 Repo should have a simple way to specify prefix on startup. · Bug #100023 c tests minsuffix and contenthash failing. · Bug #100024 BasicKeyManager passes null to generateConfigurationException. · Bug #100030 ccnChat/default network string shouldn't use Java serialization. Converted Java CCNStringObject to use UTF-8 string encoding. · Bug #100039 ccn.h should have an API version identifier. · Introduce Java ContentEncodingException and use IOException rather than using XMLStreamException widely. · Bug fixes and additional tests for AccessControlManager. · Bug fixes for name enumeration. · Improvement of internal state handling in BloomFilter.java. · Adjustments to logging level of some Java tests. · Reorganization of some Java tests to help track down intermittent failures. · ContentExplorer checks for presence of VLC plugin. · Bug fixes for Java test CCNNetworkObjectTestRepo. · Build fixes for Mac OS X 10.6 · Added optimization for Java network objects based on immutable values. · Fixed broken parameter check in ccndc. · Merged specifications of infinite timeout values for Java API. · Improvements to Java CCNFlowControl and creation of simple in-memory server to serve keys. · Improved exception handling for Java network objects. · Cleaned up XML handling for repo policy files. · Added new support for local repo write unit tests. · Eliminated timersub from signbenchtest.c for portability. · Improved interest reexpression in Java library. · Minor refinements to Java log messages. · Revisions to Java documentation. · Minor improvements to C library.

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