Source: Lanner Electronics

Date: October 2011

Type: White Paper

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Overview: Software stability is a major issue on any platform, but especially network appliances since it could affect the availability of a network. Anyone who uses software has most likely experienced problems that hang and/or force a reset of a computer or program. Such problems also occur in network appliances, and there may be times when there are no administrators around to get the appliance up and running again when things go wrong. The interruption of network connectivity could cause a tremendous loss in business even if it only lasts for a short period of time. Therefore, a method for out-of-band communication (i.e., communications that occur outside of a previously established communication channel) should be considered as a backup solution. Such out-of-band communications are most frequently enabled through a solution known as "LAN bypass."

Lanner Electronics has for many years offered hardware network appliance platforms with LAN bypass features. Throughout these years, increasingly advanced LAN bypass functions has been developed with the help of more intelligent microcontrollers and more powerful and flexible software implementations. Lanner refers to the advances in LAN bypass technology as Generation One, Generation Two and Generation Three, and this whitepaper explains the evolution of this technology.

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