Cisco Cisco IOS XR Software Release 4.0

New commands added to switch between “class service rate” or interface.

Added the following new commands in the Cisco QoS Command Reference for the Cisco XR 
12000 Series Router, Release 4.0:

hw-module qos class-rate/if-rate enable location

show qos class-rate/if-rate

CSCsz74901

Added monitoring of fabriq freeQ depletion.

Added the following new commands in the Cisco QoS Command Reference for the Cisco XR 
12000 Series Router, Release 4.0:

show controller sanity

hw-module sanity

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In the Upgrading and Downgrading Boothelper and ROM Monitor on Cisco XR 12000 Series 
Routers module, added the following note in the “Upgrading or Downgrading ROM Monitor” 
section:

The upgrade process continues on the card, even if you press Ctrl-C when the upgrade 
is in progress.

 No new hardware features were introduced in Cisco IOS XR Software Release 4.0.0 on the 
Cisco XR 12000 Series Router.

For detailed information on the shared port adapters (SPAs) and SPA interface processors (SIPs), see the 
following documents:

Contact gsr-pm@cisco.com for hardware availability.

Default timestamp setting—The timestamp prompt that precedes console output is enabled by 
default in Cisco IOS XR Release 3.8. To disable the timestamp prompt, use the no service 
timestamp command. For more information, refer to theCisco IOS XR System Management 
Command Reference for the Cisco XR 12000 Series Router.

From Cisco IOS XR Software Release 3.6.0, WRED statements are collapsed in that if different 
random-detect statements using the same match types (EXP, DSCP, Prec, and so forth) are entered 
with identical minimum and maximum threshold values, a single configuration line is shown in the