Release Notes for Cisco NCS 5500 Series Routers, IOS XR Release 25.1.2
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Cisco NCS 5500 Series Routers, Release 25.1.2
Cisco NCS 5500 Series Routers, Release 25.1.2
Cisco IOS XR Release 25.1.2 is an extended maintenance release of Cisco IOS XR Release 25.1.1 for Cisco NCS 5500 Series routers. There are no new software features or hardware introduced in this release.
For more details on the Cisco IOS XR release model and associated support, see Software Lifecycle Support Statement - IOS XR.
There is no new software features introduced in this release.
There is no new hardware introduced in this release.
There are no changes in behavior.
Table 1. Open issues for Cisco NCS 5500 Series Routers, Release 25.1.2
| Description |
|
| NCS 5700 routers and linecards wrongly modify DSCP of IPv6 multicast packets without any policy |
|
| KPI breakout configuration commit takes more than 4 mins in an MPA port |
● The Cisco NCS 5500 series modular routers with Cisco NCS 5700 line cards no longer support compatibility mode. All Cisco IOS XR releases will continue to support features that were already enabled in compatibility mode until release 25.1.1. However, no new features will be added to compatibility mode. To take advantage of new features in current and subsequent releases, enable native mode by using the hw-module profile npu native-mode-enable command.
Compatibility Matrix for EPNM and Crosswork with Cisco IOS XR Software
The compatibility matrix lists the version of EPNM and Crosswork that are supported with Cisco IOS XR Release in this release.
Table 2. Compatibility Matrix for EPNM and Crosswork with Cisco IOS XR Software
| Cisco IOS XR |
Crosswork |
EPNM |
| Release 25.1.2 |
System requirements
Use the show hw-module fpd command in EXEC and Admin mode to view the hardware components with their current FPD version and status. The status of the hardware must be CURRENT; Running and Programed version must be the same. You can also use the show fpd package command in Admin mode to check the fpd versions.
Software version
To verify the software version running on the router, use show version command in the EXEC mode.
Router# show version
Cisco IOS XR Software, Version 25.1.2
Copyright (c) 2013-2025 by Cisco Systems, Inc.
Build Information:
Built By : swtools
Built On : Wed Jul 2 15:25:11 PDT 2025
Built Host : iox-ucs-053
Workspace : /auto/srcarchive12/prod/25.1.2/ncs5500/ws
Version : 25.1.2
Location : /opt/cisco/XR/packages/
Label : 25.1.2-iso
cisco NCS-5500 () processor
System uptime is 52 minutes
The following tables lists the Cisco IOS XR Software feature set matrix (packages) with associated filenames. Visit the Cisco Software Download page to download the Cisco IOS XR software images.
Table 3. Supported software for NCS 5500 Series Routers, Release 25.1.2
| Feature Set |
Filename |
Description |
| Composite Package |
||
| Cisco IOS XR IP Unicast Routing Core Bundle |
ncs5500-mini-x.iso |
Contains base image contents that includes: Host operating system System Admin boot image IOS XR boot image BGP packages |
| Individually-Installable Optional Packages |
||
| Cisco IOS XR Manageability Package |
ncs5500-mgbl-3.0.0.0-r2512.x86_64.rpm |
Extensible Markup Language (XML) Parser, Telemetry, Netconf, gRPC and HTTP server packages. |
| Cisco IOS XR MPLS Package |
ncs5500-mpls-2.1.0.0-r2512.x86_64.rpm ncs5500-mpls-te-rsvp-2.2.0.0-r2512.x86_64.rpm |
MPLS and MPLS Traffic Engineering (MPLS-TE) RPM. |
| Cisco IOS XR Security Package |
ncs5500-k9sec-3.1.0.0-r2512.x86_64.rpm |
Support for Encryption, Decryption, Secure Shell (SSH), Secure Socket Layer (SSL), and Public-key infrastructure (PKI) |
| Cisco IOS XR ISIS package |
ncs5500-isis-1.2.0.0-r2512.x86_64.rpm |
Support ISIS |
| Cisco IOS XR OSPF package |
ncs5500-ospf-2.0.0.0-r2512.x86_64.rpm |
Support OSPF |
| Lawful Intercept (LI) Package |
ncs5500-li-1.0.0.0-r2512.x86_64.rpm |
Includes LI software images |
| Multicast Package |
ncs5500-mcast-1.0.0.0-r2512.x86_64rpm |
Support Multicast |
| EIGRP |
ncs5500-eigrp-1.0.0.0-r2512.x86_64.rpm |
Supports Enhanced Interior Gateway Routing Protocol |
| Lawful Intercept Control |
ncs5500-lictrl-1.0.0.0-r2512x86_64.rpm |
Supports Lawful Intercept Control |
| Healthcheck |
ncs5500-healthcheck-1.0.0.0-r2512.x86_64.rpm |
Supports System Health Check |
Table 4. TAR files for Cisco NCS 5500 Series Router, Release 25.1.2
| Feature Set |
Filename |
| NCS 5500 IOS XR Software 3DES |
NCS5500-iosxr-k9-25.1.2.tar |
| NCS 5500 IOS XR Software |
NCS5500-iosxr-25.1.2.tar |
| NCS 5500 IOS XR Software |
NCS5500-docs-25.1.2.tar |
| NCS 5500 IOS XR Software 3DES |
NCS5500-iosxr-k9-25.1.2.tar |
| NCS 5500 IOS XR Software |
NCS5500-iosxr-25.1.2.tar |
Table 5. Packages for Cisco NCS 5700 Series Router, Release 25.1.2
| Feature Set |
Filename |
| NCS 5700 IOS XR Software |
ncs5700-x64-25.1.2.iso |
| NCS 5700 IOS XR Software (only k9 RPMs) |
ncs5700-k9sec-rpms.25.1.2.tar |
| NCS 5700 IOS XR Software Optional Package |
NCS5700-optional-rpms.25.1.2.tar This TAR file contains the following RPMS: optional-rpms/cdp/* optional-rpms/eigrp/* optional-rpms/telnet/* |
Table 6. Related resources
| Document |
Description |
| An interactive tool that assists in locating features introduced across Cisco IOS XR releases and platforms. |
|
| Information about smart licensing using policy solutions and their deployment on IOS XR routers. |
|
| CCO documentation for Cisco NCS 5500 series routers |
|
| Search by product family, product id, data rate, reach, cable type, or form factor to determine the transceivers that cisco hardware device supports. |
|
| Search by release number, error strings, or compare release numbers to view a detailed repository of error messages and descriptions. |
|
| Select the mib of your choice from a drop-down to explore an extensive repository of MIB information. |
|
| A user-friendly reference designed to easily explore and understand the various data models supported in cisco IOS XR platforms and releases. |
|
| A general guide in case of upgrading IOS XR routers or new deployments that involve IOS XR routers. |
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