Cisco ASA 5540 User Manual

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

Cisco ASA 5540 Specifications

General

Firewall Throughput	650 Mbps
Maximum Firewall Connections	400, 000
VPN Throughput	225 Mbps
Maximum VPN Peers	5, 000
High Availability	Active/Active, Active/Standby
IPSec VPN Throughput	225 Mbps
Memory	1 GB
IPS Throughput	225 Mbps
Security Contexts	50
Flash Memory	64 MB
Form Factor	1U
Power Supply	Dual
Interfaces	4 x 10/100/1000 Ethernet