Network Convergence System 5000 Series Routers


This software release has reached end-of-life status. For more information, see the End-of-Life and End-of-Sale Notices.


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Software Features Introduced in Cisco IOS XR Software Release 6.1.4

No new software features are introduced in this release. However, this release supports software features released untill Cisco IOS XR Release 6.1.3

  • Support for polling the Inphi Firmware version through SNMP is introduced.

  • Support for Global MACsec protocol shutdown is introduced. This feature reverts MacSec fallback key without any packet loss.

  • A new show-tech custom [source-file] command is introduced in this release. This command executes list of commands specified in the source file and collects debugging information.

    A source file is user defined file in text format and must contain diagnostics commands. In absence of the source file, the command executes general health check commands present in the default directory (for example,

  • iBGP multihop can now form a peer relationship with an interface over default or static route.

  • A new alarm is supported to indicate when the fabric plane or multicast is down.

  • LLDP is supported on the management interface. You must configure lldp management enable command in LLDP config mode to enable LLDP support on the management interface.

  • MACSec Always Negotiated Fallback key option is introduced.

  • The maximum number of bundles supported on NCS 5500 is 256 bundles. Prior to this release NCS 5500 supported only 128 bundles.

Hardware Features Introduced in Cisco IOS XR Software Release 6.1.4

No new hardware features are introduced in this release. However, this release supports hardware features released until Cisco IOS XR Release

Release 6.1.4 Packages

This table lists the Cisco IOS XR Software feature set matrix (packages) with associated filenames.

Table 1. Release 6.1.4 Packages for Cisco NCS 5000 Series Router

Composite Package

Feature Set



Cisco IOS XR IP Unicast Routing Core Bundle


Contains base image contents that includes:

  • Host operating system

  • System Admin boot image

  • IOS XR boot image

  • Alarm co-relation

Individually-Installable Optional Packages

Feature Set



Cisco IOS XR Manageability Package


XML, Parser, HTTP Server, Telemetry, and gRPC.

Cisco IOS XR MPLS Package


Label Distribution Protocol (LDP), MPLS forwarding , MPLS operations , Administration and maintenance (OAM), Layer3-vpn , layer-2 vpn.

Cisco IOS XR Security Package


Support for Encryption, Decryption, and Secure Shell (SSH),

Cisco IOS XR Multicast Package


Multicast routing protocols (PIM, IGMP, Auo-rp, BSR) and infrastructure (Multicast routing information Base) , Multicast forwarding (mfwd)

Cisco IOS XR ISIS package


Supports ISIS

Cisco IOS XR OSPF package


Supports OSPF


Caveats describe unexpected behavior in Cisco IOS XR Software releases.




QSFP-H40G-CU5M optic is not detected as 40G, rather displayed as default

100G incorrectly


NCS5K-Fib_mgr crsh wth fib_hal_ssfe_ecdldi_create_modify on scale delte

Upgrading Cisco IOS XR Software

Cisco IOS XR Software is installed and activated from modular packages, allowing specific features or software patches to be installed, upgraded, or downgraded without affecting unrelated processes. Software packages can be upgraded or downgraded on all supported card types, or on a single card (node).

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