Important Information - Cisco PRP-2 Installation And Configuration Manual

Important Information

Important Information
This section contains information about the following hardware and software requirements:
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Router Information
For hardware installation and maintenance information about the Cisco XR 12000 Series Router, refer
to the installation and configuration guide for your router. This includes information on card slot
locations and other general requirements.
Supported Platforms
The PRP is supported on all Cisco XR 12000 Series Router chassis and can be installed in any available
slot in any chassis; however PRP-3 is supported only on the Cisco XR 128xx and 124xx Series Router
chassis. Also, PRP-1 is only supported on the Cisco 12000 Series Router chassis running Cisco IOS
Software.
PRP Redundancy
When two PRPs are installed in a Cisco XR 12000 Series Router, one PRP is the active PRP and the
other is a backup, or standby, PRP. If the active PRP fails or is removed from the system, the standby
PRP detects the failure and initiates a switchover. During a switchover, the standby PRP assumes control
of the router, connects with the network interfaces, and activates the local network management interface
and system console.
If your system includes redundant PRPs, both PRPs should be of the same type (PRP-3 or PRP-2) and
Note
have the same memory size. We strongly recommend that you avoid configuring your router using mixed
route processor cards.
Cisco IOS XR Software Requirements
For software configuration information, refer to the Cisco IOS XR getting started, configuration, and
command reference publications for the installed Cisco IOS XR software release. Refer to the
CiscoIOSR software release notes for additional information.
PRP-2 is compatible with Cisco IOS XR Software Release 3.2 or later releases, but PRP-3 is compatible
Note
only with Cisco IOS XR Software Release 3.8.0 and later releases. PRP-1 is not supported with any of
the Cisco IOS XR Software Releases. PRP-1 is only supported on Cisco IOS Software Releases.
The show version and show hardware commands display the current hardware configuration of the
router, including the system software version that is currently loaded and running.
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Router Information, page 2
Cisco IOS XR Software Requirements, page 2
Hardware Revision Requirements, page 3
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