Cisco ASA5500-HW Installation Guide - Page 15

Chapter 1 ASA Chassis Overview Memory Requirements Memory Requirements The memory listed in Table 1-1 is the default value that ships with each ASA. Table 1-1 Memory Requirements for the ASA 5500-X Models ASA Model Cisco ASA 5512-X Cisco ASA 5515-X Cisco ASA 5525-X Cisco ASA 5545-X Cisco ASA 5555-X Default DRAM Memory (GB) 4 8 8 12 16 Check the amount of free memory on the ASA by doing the following: • ASDM-Choose Tools > File Management. The amount of available memory appears on the bottom left in the pane. • CLI-In Privileged EXEC mode, enter the dir command. The amounts of available memory appears at the bottom of the output. In a failover configuration, the two units must have the same hardware configuration. They must be the same model, have the same number and types of interfaces, and have the same amount of RAM. Management 0/0 Interface on the ASA 5500-X Series You manage the ASA through the Management 0/0 interface on the ASA 5512-X through ASA 5555-X models. The Management 0/0 interface has the following characteristics: • No through traffic support • No subinterface support • No priority queue support • No multicast MAC support • The IPS SSP software module and the ASA share the Management 0/0 interface; however, each has its own separate MAC addresses and IP addresses. You must configure the IPS IP address within the IPS operating system. However, you configure physical characteristics (such as enabling the interface) on the ASA. By default, the Management 0/0 interface is configured for management-only traffic, and you cannot disable management-only for the Management interface. Also, the ASA 5500-X models do not allow subinterfaces on the Management interface, so for per-context management, you must connect to a data interface. The Management 0/0 interface is configured for ASDM access as part of the default factory configuration. For more information, see the "Rear Panel Ports" section on page 1-9. Cisco ASA 5500-X Series Hardware Installation Guide 1-3