Cisco Cisco Packet Data Gateway (PDG)
System Operation and Configuration
Understanding the ASR 5000 Boot Process ▀
ASR 5000 System Administration Guide, StarOS Release 16 ▄
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the active and standby order is determined, the SPIO cards in slots 24 and 25 are placed into active and standby mode,
as determined by the direct mapping of the active and standby SMCs.
as determined by the direct mapping of the active and standby SMCs.
Step 4
The active SMC begins loading the operating system software image designated in the boot stack. The boot stack entries
are contained in the boot.sys file that resides on the SMC CompactFlash. The standby SMC observes the active card
startup. If the file on the active card is loads normally, the standby SMC boots from the active card image. If the active
SMC experiences problems during this phase, the standby card 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 card.
are contained in the boot.sys file that resides on the SMC CompactFlash. The standby SMC observes the active card
startup. If the file on the active card is loads normally, the standby SMC boots from the active card image. If the active
SMC experiences problems during this phase, the standby card 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 card.
Step 5
After the software image is loaded into SMC RAM, the active card 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 an application or
line card, power is left on to that slot. All empty slots are powered off.
chassis by applying power to the other chassis slots and signalling them. If the chassis slot contains an application or
line card, power is left on to that slot. All empty slots are powered off.
Important:
If no SMCs are installed, or if they are installed incorrectly, no other card installed in the system will
boot.
Step 6
When power is applied to the PSCs and line cards installed in the system, they each perform their own series of POSTs.
Step 7
After successful POST, each of the PSCs enter standby mode.
Step 8
Installed line cards remain in steady mode until their corresponding PSC is made active via configuration. After the PSC
is made active, the line card installed in the upper-rear chassis slot behind the card is also made active. The line card
installed in the lower-rear chassis slot behind the card enters standby mode.
is made active, the line card installed in the upper-rear chassis slot behind the card is also made active. The line card
installed in the lower-rear chassis slot behind the card enters standby mode.
Step 9
After entering the standby mode, each of the PSC control processors (CPs) communicate with the SMC to receive the
appropriate code.
appropriate code.
Step 10 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 SMC
invokes the system’s Quick Setup wizard. Use the Quick Setup wizard to configure basic system parameters for
communication across the management network.
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.