Crs Hardware Compatibility - Cisco CRS-1 System Description

Fan Trays
Table 2: Alphanumeric Displays
Display
PRESENT
IN-RESET
ROMMON
MBI-BOOT
MBI-RUN
IOS-XR
BRINGDOWN
IOS-XR FAIL
Fan Trays
Fan trays are monitored by the RP and an SP module that measures airflow and controls fan RPM. As
temperatures increase, the SP increases blower RPM to provide increased cooling capacity.
Line Card Chassis Enhanced Router Midplane
The chassis midplane provides intrachassis connectivity for cards and modules in the routing system. The
midplane is mostly passive, though it does contain active NVRAM components that store tracking-number
and manufacturing information, and MAC addresses. Software stores the chassis ID value in the NVRAM.

CRS Hardware Compatibility

The following table lists the compatibility of 40G CRS, 140G CRS. and 400G CRS fabric, forwarding, and
line card components for the CRS 8-slot system.
Note
A router with a mix of 40G, 140G, and 400G fabric cards is not a supported mode of operation. Such a mode
is temporarily allowed only during the upgrade process.
Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Enhanced Router System Description
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Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Enhanced Router Overview
Node State
Card is plugged in, but is not booted. This can be due to a configuration problem or other
issue with the card.
Card either hit critical alarms and therefore was shutdown, or it failed the boot process and
hence was shut down. Manual intervention is required to recover the card.
State before the card boots.
Initial minimum boot image (MBI) is loading on the card.
MBI is running and pulling the appropriate software from the active RP card to the remote
nodes.
Node is up and running.
Node is down, due to user configuration or other error.
There is an error on the card. The card should have shut down, but the user has overridden
this by configuration.