Auxiliary And Console Ports; Alphanumeric Message Displays; Flash Memory - Cisco ASR 9000 Series Installation Manual

Troubleshooting the Route Processor Subsystem
Figure 4-6

Auxiliary and Console Ports

The auxiliary and console ports on the RSP/RP are EIA/TIA-232 (also known as RS-232) asynchronous
serial ports connect external devices to monitor and manage the system:
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Alphanumeric Message Displays

The alphanumeric message displays are organized in one row of four LED characters (see callout 8 in
Figure 4-3
The alphanumeric message displays show router status messages during the boot process and after the
boot process is complete:
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The alphanumeric message displays also provide information about different levels of system operation,
including the status of the RSP/RP, router error messages, and user-defined status and error messages.
A list of all system and error messages appears in the Cisco IOS XR System Error Messages publication.
Note

Flash Memory

You can use the flash memory on the RSP card to store multiple Cisco IOS XR software and microcode
images that you can use to operate the router. You can download new images to flash memory over the
network (or from a local server) to replace an existing image or to add it as an additional image. The
router can be booted (manually or automatically) from any of the stored images in flash memory.
Flash memory also functions as a Trivial File Transfer Protocol (TFTP) server to allow other servers to
boot remotely from the stored images, or to copy them into their own flash memory.
The system uses two types of flash memory:
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Cisco ASR 9000 Series Aggregation Services Router Hardware Installation Guide
4-24
Management LAN Port Activity LEDs
Auxiliary port—RJ-45 interface that supports flow control and is often used to connect a modem, a
channel service unit (CSU), or other optional equipment for Telnet management.
Console port—Receptacle (female) that provides a RJ-45 interface for connecting a console
terminal.
for the RSP, callout 12 in
During the boot process, the message displays are controlled directly by the CAN microcontroller.
After the boot process, the message displays are controlled by Cisco IOS XR software (through the
CAN bus).
Onboard flash memory (bootflash)—Contains the Cisco IOS XR boot image
Compact flash memory disks (or cards)—Contains the Cisco IOS XR software images
Figure 4-4 for the RSP-440, and callout 13 in
Chapter 4 Troubleshooting the Installation
Figure 4-5 for the RP).