How Does SVN work?

[vlittle]

Does the redundant SVN operate as a live spare, or as a fallback when a fault is detect on the primary link?

A live spare would terminate the protocol on both links and compare the results, whereas the fallback spare would not terminate the protocol until a fault is detected on the primary link.

Thanks, Vern.

 

[dynonsupport]

Neither.

It communicates on both buses all the time in a ping-pong fashion. Failure to get data off both busses causes a failure indication. The hardware cannot talk on both busses at the same instant- there is a hardware interlock to prevent rogue software from talking trash on both busses and taking everything down. Worst rogue software could do is trash one bus and the system will just switch to the other bus for full time use.

Whatcha planning on doing?