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You are here: Home / CompTIA / Network+ / Section V: Network Security / Chapter 31: Firewalls / Active/Active Failover Firewalls

Active/Active Failover Firewalls

The active/active failover mechanism used on firewall devices leverages the virtual context feature. The best results are obtained when the two devices configured with active/active failover have an identical platform and operating system. The two firewalls must be connected with a failover state link and this can be accomplished in one of three ways:

  • Single physical link: both the failover and stateful information are transmitted on this link
  • Dual physical links: the failover information is exchanged on one interface and the stateful information (maintaining the TCP connection and translation rules) on another
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