Cisco Systems Monitoring Security Contexts

11-21
Cisco ASA 5500 Series Configuration Guide using ASDM
Chapter11 Configuring Multiple Context Mode
Monitoring Security Contexts
Step3 (Optional) Check the Prefix check box, and in the field, enter a a decimal value between 0 and 65535.
This prefix is converted to a 4-digit hexadecimal number, and used as part of the MAC address. The
prefix ensures that each ASA uses unique MAC addresses, so you can have multiple ASAs on a network
segment, for example. See the “MAC Address Format” section for more information about how the
prefix is used.
Monitoring Security Contexts
This section describes how to view and monitor context information and includes the following topics:
•Monitoring Context Resource Usage, page11-21
•Viewing Assigned MAC Addresses, page11-22
Monitoring Context Resource Usage
To monitor resource usage of all contexts from the system execution space, perform the following steps:
Step1 If you are not already in the System mode, in the Device List pane, double-click System under the active
device IP address.
Step2 Click the Monitoring button on the toolbar.
Step3 Click Context Resource Usage.
Click each resource type to view the resource usage for all contexts:
•ASDM—Shows the usage of ASDM connections.
– Context—Shows the name of each context.
– Existing Connections (#)—Shows the number of existing connections.
– Existing Connections (%)—Shows the connections used by this context as a percentage of the
total number of connections used by all contexts.
– Peak Connections (#)—Shows the peak number of connections since the statistics were last
cleared, either using the clear resource usage command or because the device rebooted.
•Teln et—Shows the usage of Telnet connections.
– Context—Shows the name of each context.
– Existing Connections (#)—Shows the number of existing connections.