Cisco Active Network Abstraction Administrator’s Guide, 3.5
Page 82 Cisco Systems, Inc.
• Enable AVM Protection: By default this option is selected
enabling the watchdog protocol on the AVM when high availability
is enabled. For more information, refer to the Cisco Active Network
Abstraction High Availability User’s Guide.
Note: It is highly recommended that the user does not disable this
option if high availability is enabled.
Note: If this option is selected or unchecked when the AVM is up
then you will need to restart the AVM in order for this change to
take affect.
4. Define the properties of the AVM.
5. Click OK. The new AVM is added to the selected Sheer DNA Unit, is
displayed in the Workspace, and is activated.
Creating the new AVM results in Sheer DNA providing the registry
information of the new AVM in the specified Sheer DNA Unit, and the AVM
can now host VNEs. For more information, refer to the section Defining
VNEs on page 89.
6.2 AVM Status
The status of AVMs (and VNEs) is affected by Admin and Oper mode.
Admin mode is the administrative instructions that are sent to the AVM.
Oper mode is the actual status of the AVM, for example, Up. For more
information about Admin and Oper modes, refer to page 83.
When moving an AVM (file), its status, for example, Up or Down, has a
bearing on whether the file is reloaded (Up) or not (Down). For more
information about moving AVMs, refer to page
86. For more information
about starting and stopping AVMs, refer to page 85.
An AVM can have only one of the following statuses at a time:
• Up: The file (process) is reachable and was loaded and started. When a
Start (command) option is issued, and no problems are encountered, such
as an overloaded server, the AVM is running (has been loaded and
started), and its status is Up.
• Down: The file (process) is reachable and was stopped. When a Stop
(command) option is issued, Sheer DNA issues instructions to shutdown
all of the processes. When all of the processes have been stopped, the
status of the AVM is Down.
• Starting Up: When a Start or upload (command) option is issued, and
for example, the Server cannot execute it due to the fact that it is busy or
overloaded, the status of the AVM is Starting Up.
