Knowledge Base

This form of redundancy is of the ‘hot standby’ type:

• Connections are established and maintained on two links.
• Only one connection is active.

There is no concept of primary and secondary connections i.e. a connection remains active so long as it is not broken.

On start-up:

• The local station tries to establish two client connections with the remote station.
• The first remote station that responds is designated as active, the other as passive.

On break of connection:

• The standby becomes active.

Repeated attempts are made to re-connect on the disconnected link.

On re-establishing a connection:

• The active connection remains in use.