CHAPTER
1-1
Cisco ASA Series CLI Configuration Guide
1
Configuring a Cluster of ASAs
Clustering lets you group multiple ASAs together as a single logical device. A cluster provides all the
convenience of a single device (management, integration into a network) while achieving the increased
throughput and redundancy of multiple devices.
Note Some features are not supported when using clustering. See the “Unsupported Features” section on
page 1-17.
• Information About ASA Clustering, page 1-1
• Licensing Requirements for ASA Clustering, page 1-23
• Prerequisites for ASA Clustering, page 1-23
• Guidelines and Limitations, page 1-24
• Default Settings, page 1-27
• Configuring ASA Clustering, page 1-27
• Managing ASA Cluster Members, page 1-47
• Monitoring the ASA Cluster, page 1-52
• Configuration Examples for ASA Clustering, page 1-56
• Feature History for ASA Clustering, page 1-71
Information About ASA Clustering
• How the ASA Cluster Fits into Your Network, page 1-2
• Performance Scaling Factor, page 1-2
• Cluster Members, page 1-2
• ASA Cluster Interfaces, page 1-4
• Cluster Control Link, page 1-6
• High Availability within the ASA Cluster, page 1-9
• Configuration Replication, page 1-10
• ASA Cluster Management, page 1-10
• Load Balancing Methods, page 1-12
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