Cisco Cisco Packet Data Gateway (PDG)
System Operation and Configuration
Understanding the ASR 5500 Boot Process ▀
ASR 5500 System Administration Guide, StarOS Release 16 ▄
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observes the active card startup. If the file on the active MIO/UMIO is loads normally, the standby MIO/UMIO boots
from the active card image. If the active MIO/UMIO experiences problems during this phase, the standby MIO/UMIO
loads its software image designated by its own boot stack entry in its boot.sys file and takes over control of the system
as the active MIO/UMIO.
from the active card image. If the active MIO/UMIO experiences problems during this phase, the standby MIO/UMIO
loads its software image designated by its own boot stack entry in its boot.sys file and takes over control of the system
as the active MIO/UMIO.
Step 5
After the software image is loaded into its memory, the active MIO/UMIO determines whether other cards are installed
in the chassis by applying power to the other chassis slots and signalling them. If the chassis slot contains a card, power
is left On to that slot. All empty slots are powered off.
in the chassis by applying power to the other chassis slots and signalling them. If the chassis slot contains a card, power
is left On to that slot. All empty slots are powered off.
Important:
If no MIOs are installed or if both fail to boot successfully, no other card installed in the system will
boot.
Step 6
When power is applied to the DPC/UDPCs installed in the system, they each perform their own series of POSTs.
Step 7
After successful POST, each DPC/UDPC enters standby mode.
Step 8
After entering the standby mode, each of the control processors (CPs) on the DPC/UDPC communicate with the active
MIO/UMIO to receive the appropriate code.
MIO/UMIO to receive the appropriate code.
Step 9
Upon successful loading of the software image, the system loads a configuration file designated in the boot stack
(boot.sys file). If this is the first time the system is powered on and there is no configuration file, the active MIO/UMIO
invokes the system’s Quick Setup wizard. Use the Quick Setup wizard to configure basic system parameters for
communication across the management network.
(boot.sys file). If this is the first time the system is powered on and there is no configuration file, the active MIO/UMIO
invokes the system’s Quick Setup wizard. Use the Quick Setup wizard to configure basic system parameters for
communication across the management network.
The wizard creates a configuration file (system.cfg) that you can use as a starting point for subsequent configurations.
This allows you to configure the system automatically by applying the configuration file during any subsequent boot.
For additional information about system configuration files, refer to the Understanding Configuration Files section.
This allows you to configure the system automatically by applying the configuration file during any subsequent boot.
For additional information about system configuration files, refer to the Understanding Configuration Files section.