I just found this collection of top 10 lists on different VMWare topics by Eric Siebert. Specially, top 10 on VMWare networking has some really good reads.
June 2008
You are browsing the archive for June 2008.
Fortinet granted new patents for virtual routers
Fortinet® has been granted four new patents related to network virtualization and network security by the United States Patent and Trademark Office. These are
- U.S. Patent #7,333,430 – Systems and Methods for Passing Network Traffic Data – directed to efficiently processing network traffic data to facilitate policy enforcement, including content scanning, source/destination verification, virus scanning, content detection and intrusion detection.
- U.S. Patent #7,340,535 – System and Method for Controlling Routing in a Virtual Router System – directed to controlling the routing of network data, and providing efficient configuration of routing functionality and optimized use of available resources by applying functions to data packets in a virtual environment.
- U.S. Patent #7,376,125 – Service Processing Switch – directed to providing IP services and IP packet processing in a virtual router-based system using IP flow caches, virtual routing engines, virtual services engines and advanced security engines.
- U.S. Patent # 7,389,358 – Distributed Virtual System to Support Managed, Network-based Services – directed to a virtual routing system, which includes processing elements to manage and optimize IP traffic, useful for service provider switching functions at Internet point-of-presence (POP) locations.
What are “Soft” and “Hard” states ?
This question has been bugging me for a long time, and I’ve just read this short technical note which is by far the best piece on the distinction between these two types of states.
“Hard-state” protocols mean that in the absence of some event to trigger a protocol response, the protocol’s state will remain unchanged or “hard” for an unbounded time period. This happens in a deterministic manner. Hence hard-state protocols must be reliable, with acknowledgments and retransmissions.
On the other hand, “soft-state” seems a bit difficult to comprehend. In this case, the state is not necessarily consistent, maintained probabilistically, and the existence of the state may or may not be critical to the receiving service. Interested readers should go through the technical note.
I am a reviewer for EVGM’2008
I’ve been appointed as a reviewer for the 2nd workshop on “End-to-end Virtualization and Grid Management” (EVGM 2008), which will be held in conjunction with MANWEEK’08 on September 24, 2008 on the Island of Samos, Greece.
The End-to-end Virtualization and Grid Management (EVGM) workshop has been recently founded with a view to dealing with the very topical subject of managing virtualized resources in distributed environments, including resources that are dispersed geographically and/or administratively. The workshop is sponsored by the International Federation for Information Processing (IFIP) Working Group 6.6 on Management of Networks and Distributed Systems, with technical co-sponsorship by the IEEE Communications Society, Technical Committee on Network Operations and Management (CNOM).