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[KB89]Using two network cards

Tags: Multistation, Networking

Communication interfaces
16 years ago
By RM
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Applies to:

PcVue all versions
Summary:

This article explains the redundancy with two network cards
Details:

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.

Created on: 22 Oct 2010 Last update: 13 May 2024