Release Notes for Cisco 8000 Series Routers, IOS XR Release 26.1.1

BGP

Software Reliability

BGP best-path selection using controller-programmed metrics

Introduced in this release on: Fixed Systems(8200, 8700)(select variants only*); Centralized Systems (8600); Modular Systems (8800 [LC ASIC: Q100, Q200, P100])(select variants only*)

You can steer BGP overlay traffic along controller-selected underlay paths by enabling BGP best-path selection using controller-programmed metrics. The network controller injects preferred path metrics into the Routing Information Base (RIB) via SL-APIv2, and BGP uses these metrics to select the best path for overlay routes. This enables precise traffic engineering, seamless Segment Routing (SR) label transitions, simpler migration from legacy protocols, and better per-prefix traffic visibility.

EVPN

Software Reliability

Extended Hardware offload of Connectivity Check Messages (CCM) timers

Introduced in this release on: Fixed Systems (8010 [ASIC: A100]; 8700 [ASIC: K100]; 8400 [ASIC: K100]) (select variants only*)
This release extends the hardware offload support for Connectivity Check Messages (CCM) timers to a range of up to 1 second (1000 ms).
Previously, hardware offload CCM timers were supported only from 3.3 milliseconds to 100 milliseconds.
By enabling hardware offload for longer timer intervals, the processing load on the router’s CPU is reduced, which can enhance overall device performance and scalability. This improvement allows for more efficient network monitoring with less CPU utilization.
*This functionality is now extended to these routers:

·         8011-4G24Y4H-I

·         8011-32Y8L2H2FH

·         8711-32FH-M

·         8712-MOD-M

·         8711-48Z-M

·         8404-SYS-D

·         8011-12G12X4Y-A/D

Software Reliability

EVPN IRB over SRv6 core

Introduced in this release on: Fixed Systems (8200 [ASIC: P100], 8700 [ASIC: P100, K100]); Centralized Systems (8400 [ASIC: K100]); Modular Systems (8800 [LC ASIC: P100])

EVPN IRB enhances network flexibility by enabling seamless Layer 3 connectivity between hosts on different subnets over an SRv6 network.

This feature allows Layer 3 forwarding among hosts across IP subnets, maintains EVPN multi-homing capabilities, and facilitates communication between EVPN hosts or subnets and IP VPNs.

Leveraging SRv6’s programmable and flexible transport, the solution streamlines the integration and management of modern, diverse network environments.

Interfaces

Ease of Use

Two-Way Active Measurement Protocol (TWAMP)

Introduced in this release on: Fixed Systems (8200 [ASIC: Q200, P100], 8700 [ASIC: P100, K100], 8010 [ASIC: A100]); Centralized Systems (8600 [ASIC:Q200], 8400 [ASIC: K100]); Modular Systems (8800 [LC ASIC: Q200, P100])
The TWAMP is a protocol designed to measure and monitor the performance of IP networks by testing round-trip performance metrics between two devices. TWAMP enables the assessment of IP Service Level Agreement (SLA) compliance through active measurement of key performance indicators such as latency, jitter, and packet loss. This is particularly valuable for service providers and enterprise networks to ensure high-quality service delivery.

Ease of Use

TWAMP-Light

Introduced in this release on: Fixed Systems (8200 [ASIC: Q200, P100], 8700 [ASIC: P100, K100], 8010 [ASIC: A100]); Centralized Systems (8600 [ASIC:Q200], 8400 [ASIC: K100]); Modular Systems (8800 [LC ASIC: Q200, P100])
TWAMP-light is a lightweight model of TWAMP, which eliminates the need for a control session. It removes the overhead of establishing and terminating the control session on both end devices.

L2VPN

Software Reliability

Y.1564 - Ethernet service activation test

Introduced in this release on: Fixed Systems (8200 [ASIC: P100], 8700 [ASIC: P100, K100], 8010 [ASIC: A100]); Centralized Systems (8400 [ASIC: K100])

Use the Y.1564 Ethernet Service Activation Test (SAT) to check SLA settings. Ensure all services meet SLA objectives at their maximum committed rate under maximum load. Conduct medium-term and long-term soak tests under stress.

Use this procedure to turn up service, install, and troubleshoot Ethernet-based services.

You can use this test to collect Key Performance Indicator (KPI) metrics, including Frame Transfer Delay (latency or Round Trip Time (RTT)) and Frame Loss Ratio (packet loss). Use the test to measure the non-drop rate and the maximum rate under stress conditions.

Modular QoS

Upgrade

Extended display and filtering options for show interfaces

Introduced in this release on: Fixed Systems (8200 [ASIC: Q100, Q200, P100], 8700 [ASIC: P100, K100], 8010 [ASIC: A100]); Centralized Systems (8600 [ASIC:Q200], 8400 [ASIC: K100]); Modular Systems (8800 [LC ASIC: Q100, Q200, P100]
This feature enhances the show interfaces CLI to improve monitoring of environments with large numbers of tunnel interfaces. It introduces a wide display option to show full interface names, a no-tunnels filter to exclude tunnel interfaces, and an additional field indicating the reason an interface is down. These optional enhancements preserve existing command behavior while enabling clearer, more actionable operational visibility.

Multicast

Software Reliability

MLDP Recursive FEC for Inter-AS

Introduced in this release on: Fixed Systems (8200 [ASIC: Q100, Q200, P100], 8700 [ASIC: P100,K100], 8010 [ASIC: A100]); Centralized Systems (8600 [ASIC: Q200], 8400 [ASIC: K100]); Modular Systems (8800 [LC ASIC: Q100, Q200, P100])

MLDP Recursive FEC enables the transport of multicast VPN traffic across autonomous systems without requiring provider routers (P routers) to know all PE loopback addresses. It uses an inner and outer FEC to guide label switching, supporting interoperability between provider edge and ASBR routers.

This feature adds support for mLDP Recursive FEC enabling Inter-AS multicast VPN scenarios (Options B and C) and extends support for profiles 1, 4, 6, and 14.

Programmability

Software Reliability

Maintain reliable gRPC server operation on the router

Introduced in this release on: Fixed Systems (8200 [ASIC: Q100, Q200, P100], 8700 [ASIC: P100, K100], 8010 [ASIC: A100]); Centralized Systems (8600 [ASIC: Q200]); Modular Systems (8800 [LC ASIC: Q100, Q200, P100])
You can achieve reliable server operations, a consistent system state, and secure communication between gRPC clients and the router by ensuring that client access is delayed until the router is fully configured. This approach prevents inconsistent responses, errors, and incomplete enforcement of security policies.
With this feature, the gRPC server on the router accepts client requests only after the startup configuration is fully applied. The External Management Service Daemon (EMSD) manages gRPC services, listens for connection requests on designated network ports, and ensures that the server initiates only after the router completes its configuration. This seamless coordination guarantees robust communication and operational consistency.

Routing

Ease of use

ePBR on BVI

Introduced in this release on: Fixed Systems (8200 [ASIC: P100], 8700 [ASIC: P100, K100]) (select variants only*); Centralized Systems (8400 [ASIC: K100]) (select variants only*); Modular Systems (8800 [LC ASIC: P100]) (select variants only*)

You can ensure secure and efficient traffic handling at the network ingress by applying ePBR policies directly to the BVI. This feature allows the Cisco IOS XR software to intercept and steer inbound Layer 2 traffic before it transitions to Layer 3 routing.

*This feature is supported on:

Software Reliability

Cross-Address Family Static Routing

Introduced in this release on: Fixed Systems (8200 [ASIC: Q200, P100], 8700 [ASIC: P100, K100], 8010 [ASIC: A100]); Centralized Systems (8600 [ASIC: Q200]); Modular Systems (8800 [LC ASIC: Q100, Q200, P100])

With the introduction of this feature, you can now configure IPv4 prefixes with IPv6 next-hops.

The router programs these routes into the routing table once the Routing Information Base (RIB) confirms the next-hop is reachable. This feature allows IPv4 traffic to traverse IPv6-capable infrastructure, providing a highly scalable solution for modern dual-stack network management.

This feature introduces these changes:

CLI:

* router static address-family

* show static vrf

* show static interfaces

Software Reliability

Static IS-IS BGP tracking

Introduced in this release on: Fixed Systems (8200, 8700); Centralized Systems (8600 [ASIC:Q200], 8400 [ASIC: K100]); Modular Systems (8800 [LC ASIC: Q100, Q200, P100])

You can now boost network accuracy and reliability with the static IS-IS BGP tracking feature. It only advertises static IS-IS neighbors when the matching BGP peer is up, using a simple route-policy to track their status. Two-way connectivity checks are turned off for static neighbors to avoid false failures, and IS-IS extended TLVs make sure these neighbors are clearly shown in IS-IS LSPs for accurate network mapping.

Segment Routing

Software Reliability

BGP SID locator tracking for SRv6 services

Introduced in this release on: Fixed Systems (8200 [ASIC: Q200, P100], 8700 [ASIC: P100, K100], 8010 [ASIC: A100]); Centralized Systems (8600 [ASIC: Q200]); Modular Systems (8800 [LC ASIC: Q200, P100], 8400 [ASIC: K100])
You can now improve SRv6 path selection by extending BGP next-hop tracking to monitor the reachability and metric of SRv6 SID locators. BGP tracks locators stored in the Routing Information Base (RIB) for both Layer 2 and Layer 3 services and updates path selection when a locator becomes unreachable, even if the next hop remains reachable.

Software Reliability

Link Residual Bit Error Rate Measurement using STAMP

Introduced in this release on: Fixed Systems (8200 [ASIC: Q200, P100], 8700 [ASIC: P100], 8010 [ASIC: A100]); Centralized Systems (8600 [ASIC: Q200]); Modular Systems (8800 [LC ASIC: Q200, P100])

You can now enable earlier detection of physical layer issues and faster troubleshooting before packet loss or service impact occurs by actively measuring residual bit errors and report metrics to identify link degradations.

Software Reliability

Performance Measurement for Link Bundle Members

Introduced in this release on: Fixed Systems (8200 [ASIC: Q200, P100], 8700 [ASIC: P100], 8010 [ASIC: A100]); Centralized Systems (8600 [ASIC: Q200]); Modular Systems (8800 [LC ASIC: Q200, P100])
Identify and isolate link issues for bundle members by measuring delay, loss, and bit errors for individual links. This feature provides visibility into performance at the member level and uses high-bandwidth STAMP to detect issues caused by variations in fiber or optical transport quality.

Ease of Use

SRv6-TE explicit BSID and remote steering

Introduced in this release on: Fixed Systems (8010 [ASIC: A100]; 8200 [ASIC: Q200, P100], 8700 [ASIC: P100, K100]); Centralized Systems (8600 [ASIC:Q200], 8400 [ASIC: K100]); Modular Systems (8800 [LC ASIC: Q200, P100])

You can now manually configure a deterministic and persistent binding SID, also known as an explicit BSID, for an SRv6-TE policy. The router also supports remote BSID steering, which allows it to recognize traffic whose destination address matches a local policy BSID and steer the traffic directly into the associated SRv6-TE policy.

Previously, the router allocated SRv6-TE policy binding SIDs dynamically and could change the BSID during reloads or policy reinstallation. This behavior limited deterministic policy stitching and integration with external controllers.

The feature introduces these changes:

*CLI:*

* show segment-routing traffic-eng database explicit-bsid srv6 summary detail

* clear segment-routing srv6 sid _<address>_

* The enforce keyword is introduced as an explicit option in binding-sid command.

* The following show commands are updated to display the requested BSID and binding SID behavior:

show segment-routing traffic-eng policy

show segment-routing srv6 static-endpoint

*YANG Data Models:*

* Cisco-IOS-XR-infra-xtc-agent-oper.yang

* Cisco-IOS-XR-segment-routing-srv6-cfg.yang

see GitHub , YANG Data Models Navigator )

Setup and Upgrade

Upgrade

Signature verification of owner RPMs using owner public keys

Introduced in this release on: Fixed Systems (8200 [ASIC: Q100, Q200, P100], 8700 [ASIC: P100, K100], 8010 [ASIC: A100]); Centralized Systems (8600 [ASIC:Q200]) ; Modular Systems (8800 [LC ASIC: Q100, Q200, P100])

This feature ensures integrity of owner RPMs and validates the authenticity of these RPMs by enabling the router to securely verify the owner RPM signatures using owner public keys onboarded on to the router.

With this feature, you can now control whether or not to enable signature verification for owner RPMs based on defined security levels.

When the signature verification for owner RPMs is enabled, all owner RPMs must be verified prior to IOS XR package installation.

Software Reliability

Security profiles for Cisco IOS XR software

Introduced in this release on: Fixed Systems (8200 [ASIC: Q100, Q200, P100], 8700 [ASIC: P100, K100], 8010 [ASIC: A100]); Centralized Systems (8600 [ASIC:Q200]) ; Modular Systems (8800 [LC ASIC: Q100, Q200, P100])

This feature supports different security profiles to ensure integrity and protection of the IOS XR system when transitioning between security profiles.

The supported security profiles are Strict, Default, Relaxed, and Custom.

Software Reliability

Customer consent token configuration

Introduced in this release on: Fixed Systems (8200 [ASIC: Q100, Q200, P100], 8700 [ASIC: P100, K100], 8010 [ASIC: A100]); Centralized Systems (8600 [ASIC:Q200]) ; Modular Systems (8800 [LC ASIC: Q100, Q200, P100])

This feature allows you to enable the customer consent token workflow so that the key name is linked to the key package.

Software Reliability

Key package enhancements

Introduced in this release on: Fixed Systems (8200 [ASIC: Q100, Q200, P100], 8700 [ASIC: P100, K100], 8010 [ASIC: A100]); Centralized Systems (8600 [ASIC:Q200]) ; Modular Systems (8800 [LC ASIC: Q100, Q200, P100])

This feature introduces you to the version 3 key package. With the version 3 key package, you can create, validate, sign a key package before the key package is provisioned on the router.

Unlike the reserved customer consent token name, CUS-CT, used in version 1 and version 2 key packages, you can now use any name for the customer consent token that you include in the key package.

However, to enable the customer consent token workflow, execute the *consent-token customer* command after the key package installation.

System Management

Ease of Use

Monitor mount points

Introduced in this release on: Fixed Systems (8200 [ASIC: Q100, Q200, P100], 8700 [ASIC: P100, K100], 8010 [ASIC: A100]); Centralized Systems (8600 [ASIC: Q200]); Modular Systems (8800 [LC ASIC: Q100, Q200, P100])

You can prevent service disruptions by having a clear visibility into your router's storage resource allocation and usage. Adequate disk space is crucial for preventing application crashes, ensuring successful upgrades, and maintaining optimal router performance.

This feature provides detailed information about the file system's name (mount point), storage component (file system type), total size, available space, and utilized space, allowing you to monitor and manage disk space effectively.

Both Model-Driven Telemetry (MDT) and Event-Driven Telemetry (EDT) are supported.

Software Reliability

Enhanced SNMP FEC visibility for all optical modules

Introduced in this release on: Fixed Systems (8200 [ASIC: Q100, Q200, P100], 8700 [ASIC: P100, K100], 8010 [ASIC: A100]); Centralized Systems (8600 [ASIC:Q200]) ; Modular Systems (8800 [LC ASIC: Q100, Q200, P100])

Support for FEC (Forward Error Correction) statistics is now extended to all CMIS (Common Management Interface Specification)-compliant optical modules, including grey and ZR optics. The CISCO-OPTICAL-MIB now provides both host-side and media-side statistics, enabling unified monitoring, accurate signal degradation identification, and enhanced troubleshooting across optical networks.

Previously, SNMP offered only limited media-side pre-FEC and post-FEC BER statistics for color optics, restricting comprehensive performance analysis for other optical modules and system components.

For detailed information on the specific MIB, please refer the MIB Locator.

System Monitoring

Software Reliability

SSD health metrics

Introduced in this release on: Fixed Systems (8200 [ASIC: Q200]); Modular Systems (8800 [LC ASIC: Q200])(select variants only*)

You can now maintain optimal health of Solid State Drives (SSDs) and promptly identify hardware issues to minimize the downtime of your router. The SSD in your router is crucial, as it stores critical data and system files necessary for the router's operation. To ensure proper working of the router, the

feature utilizes Self-Monitoring, Analysis, and Reporting Technology (SMART) to monitor SSDs.

By default, SMART continuously performs self-tests and logs errors and warnings to specific log files. You can promptly identify hardware issues by reviewing these logs.

*This feature is supported on:

* 8101-32H

* 8102-64H

* 8201-32FH

* 8101-32FH

* 8201-24H8FH

* 8202-32FH-M

* 8608-RP

* 88-LC0-36FH

* 88-LC0-36FH-M

* 88-LC0-34H14FH

System Security

Software Reliability

SSH key strength:3072 bits by default

Introduced in this release on: Fixed Systems (8200 [ASIC: Q100, Q200, P100], 8700 [ASIC: P100, K100], 8010 [ASIC: A100]); Centralized Systems (8600 [ASIC:Q200]) ; Modular Systems (8800 [LC ASIC: Q100, Q200, P100])
This update enhances device security by automatically generating RSA 3072-bit SSH host keys during system boot, replacing the previous default of RSA 2048-bit keys. The stronger key size aligns with industry best practices and provides improved cryptographic protection, ensuring secure SSH access and compliance with future security requirements.

Software Reliability

Syslog warnings for RSA keys and DSA keys

Introduced in this release on: Fixed Systems (8200 [ASIC: P100], 8700 [ASIC: P100, K100], 8010 [ASIC: A100])(select variants only*); Modular Systems (8800 [LC ASIC: P100])(select variants only*)

This enhancement ensures Cisco IOS XR devices comply with evolving security standards by sending syslog warnings during system boot if weak Rivest, Shamir, and Adelman (RSA) keys (less than 3072 bits) or Digital Signature Algorithm (DSA) keys are detected. The default RSA key size has been increased from 2048 to 3072 bits to strengthen security.

Additionally, DSA keys are no longer auto-generated at boot, and if found, a syslog warning prompts their removal to align with current best practices.

Software Reliability

Syslog alerts on public keys generated in XR config mode

Introduced in this release on: Fixed Systems (8200 [ASIC: P100], 8700 [ASIC: P100, K100], 8010 [ASIC: A100])(select variants only*); Modular Systems (8800 [LC ASIC: P100])(select variants only*)

This enhancement ensures Cisco IOS XR devices comply with evolving security standards by sending syslog warnings during system boot if weak RSA keys (less than 3072 bits) or DSA keys are detected. The default RSA key size has been increased from 2048 to 3072 bits to strengthen security.

Additionally, DSA keys are no longer auto-generated at boot, and if found, a syslog warning prompts their removal to align with current best practices.

Software Reliability

802.1X port-based authentication

Introduced in this release on: Fixed Systems (8200 [ASIC: Q200, P100], 8700 [ASIC: P100, K100], 8010 [ASIC: A100]); Modular Systems (8800 [LC ASIC: Q100, Q200, P100])(select variants only*)
*This feature is extended to these hardware variants:
* 8201
* 8201-32FH
* 88-LC0-36FH-M
* 8212-48FH-M
* 8711-32FH-M
* 88-LC1-36EH
* 88-LC1-12TH24FH-E
* 88-LC1-52Y8H-EM
* 8712-MOD-M
* 8711-48Z-M
* 8011-4G24Y4H-I
* 8011-32Y8L2H2FH
* 8011-12G12X4Y-A/D

8404-SYS-D

The Cisco 8404-SYS-D is a full-featured, modular and programmable aggregation 4 RU router.
The Cisco 8404-SYS-D is a K100 Cisco Silicon One Network Processing Unit (NPU) router that offers a new breed of centralized architectures that combine the best aspects of distributed and fixed systems with 4.8 Tbps of network bandwidth.
The Cisco 8404 supports two different MPAs:
·       84-MPA-2H12Z-M with network bandwidth of 800 Gbps
·       84-MPA-2FH/6H-M with network bandwidth of 800 Gbps
The Cisco 8404-SYS-D supports QSFP56-DD, QSFP28, and SFP56 optical ports.

8818-FC1 Fabric Card based on F100 Silicon Chip

The Cisco 8818 Series Routers supports the Cisco 8818 fabric card (8818-FC1).

The 8818-FC1 fabric card is based on a Silicon One F100 ASIC. Each fabric card provides 76 Tbps of switching capacity with Q200 or P100 Silicon One line cards.

Because of the higher switching capacity, this fabric card offer benefits, such as faster communication, lower latency, and ability to manage higher data flows.

By default, the fabric card only supports 8FC mode.

CSCwr67313

Redirect fails for IPv4 traffic in PBR policy-maps.

CSCws39506

BGP flow specification did not match certain policies after flowspec_mgr process restart.

Release 26.1.1

Crosswork Optimization Engine 6.0

Evolved Programmable Network Manager 8.1.1

Cisco 8010 Series Routers - Chassis

8011-12G12X4Y-A

Cisco 8011 12x1G, 12x1/10G, 4X1/10/25G

Release 25.4.1

8011-12G12X4Y-D

Cisco 8011 12x1G, 12x1/10G, 4X1/10/25G

Release 25.4.1

8011-32Y8L2H2FH

Cisco 8010 32X25G SFP28, 8x50G, 2x100GQSFP28, 2x400G QSFP-DD

Release 25.4.1

8011-4G24Y4H-I

Cisco 8010 1 RU Fixed System - 4 QSFP28 100GbE, 24 SFP28 25GbE, and 4 RJ-45 100MbE

Release 25.1.1

Cisco 8010 Series Routers – Power Supply Unit (PSU)

PWR-650-AC-R

Cisco 650W AC Power Module

Release 25.4.1

PWR-930-DC-R

Cisco 930W DC Power Module

Release 25.4.1

PWR-400-AC

Cisco 400W AC Power Module

Release 25.1.1

PWR-400-DC

Cisco 400W DC Power Module

Release 25.1.1

Cisco 8200 Series Routers - Chassis

8201-SYS

Cisco 8200 1 RU Fixed System - 24 QSFP56-DD 400GbE and 12 QSFP28 100GbE

Release 7.0.12

8202-SYS

Cisco 8200 2 RU Fixed System - 12 QSFP56-DD 400GbE and 60 QSFP28 100GbE

Release 7.3.1

8201-32FH

Cisco 8200 1 RU Fixed System - 32 QSFP56-DD 400GbE

Release 7.3.15

8201-24H8FH

Cisco 8200 1 RU Fixed System - 8 QSFP56-DD 400GbE and 24 QSFP28 100GbE

Release 7.7.1

8202-32FH-M

Cisco 8200 2 RU Fixed System - 32 QSFP56-DD 400GbE with MACsec

Release 7.5.2

8212-48FH-M

Cisco 8200 2 RU Fixed System - 24 QSFP-DD 800G or 48 QSFP56-DD 400GbE with MACsec

Release 24.3.1

Cisco 8200 Series Routers – Power Supply Unit (PSU)

PSU1.4KW-ACPI

Cisco 1.4KW AC Power Module with Port-side Air Intake

Release 7.0.12

PSU1.4KW-ACPE

Cisco 1.4KW AC Power Module with Port-side Air Exhaust

Release 7.0.12

PSU2KW-ACPI

Cisco 2KW AC Power Module with Port-side Air Intake

Release 7.3.1

PSU2KW-ACPE

Cisco 2KW AC Power Module with Port-side Air Exhaust

Release 7.3.1

PSU3KW-HVPI

Cisco 3KW HV AC/DC Power Supply Unit

Release 7.5.3

Cisco 8400 Series Routers - Chassis

8404-SYS-D

Cisco 8404 – 4-Slot Centralized Chassis

Release 26.1.1

Cisco 8400 Series Routers - Modular Port Adapters (MPA)

84-MPA-2H12Z-M

Cisco 8404 MPA with 2x100G QSFP28 + 12x1/10/25/50G SFP56

Release 26.1.1

84-MPA-2FH/6H-M

Cisco 8404 MPA with 2x400G / 6x100G QSFP56-DD

Release 26.1.1

Cisco 8400 Series Routers - Power Entry Module (PEM)

8404-DC-PEM

Cisco 8404 DC Power Entry Module

Release 26.1.1

Cisco 8600 Series Routers - Chassis

8608

Cisco 8600 7 RU Centralized System

Release 7.10.1

Cisco 8600 Series Routers - Modular Port Adapters (MPA)

86-MPA-14H2FH-M

Cisco 8608 MPA - 2 QSFP-DD 400GbE and 14 QSFP / 16 QSFP 100GbE

Release 7.10.1

86-MPA-24Z-M

Cisco 8608 MPA - 24 SFP56 10/25/50 GbE

Release 7.10.1

86-MPA-4FH-M

Cisco 8608 MPA - 4 QSFP-DD 400GbE

Release 7.10.1

Cisco 8600 Series Routers – Power Supply Unit (PSU)

PSU3.2KW-ACPI

Cisco 3.2-kW AC Power Supply Unit

Release 7.10.1

PSU3.2KW-DCPI

Cisco 3.2-kW DC Power Supply Unit

Release 7.10.1

PSU4.3KW-HVPI

Cisco 4.3KW HV AC/DC Power Supply Unit

Release 7.10.1

Cisco 8700 Series Routers - Chassis

8711-48Z-M

Cisco 8700 1 RU Fixed System - 6 QSFP-DD, 4 QSFP56, and 48 SFP56 ports

Release 25.4.1

8711-32FH-M

Cisco 8700 1 RU Fixed System - 16 QSFP-DD800 and 16 QSFP56-DD

Release 24.3.1

8712-MOD-M

Cisco 8700 2 RU Fixed System

Release 24.4.1

Cisco 8700 Series Routers - Modular Port Adapters (MPA)

8K-MPA-4D

Cisco 8712 MPA - 4 QSFP-DD 400GbE

Release 24.4.1

8K-MPA-16H

Cisco 8712 MPA - 16 QSFP-28 100GbE

Release 24.4.1

8K-MPA-16Z2D

Cisco 8712 MPA - 2 QSFP-DD 400GbE, 2 QSFP-DD 200GbE, and 16 SFP 50GbE

Release 24.4.1

8K-MPA-18Z1D

Cisco 8712 MPA - 1 QSFP-DD 400 GbE and 18 zSFP56+ 50GbE

Release 25.1.1

Cisco 8700 Series Routers – Power Supply Unit (PSU)

PSU2KW-ACPI

Cisco 8711-32FH-M PSU – 2KW AC Power Module with Port-side Air Intake

Release 24.3.1

PSU2KW-ACPE

Cisco 8711-32FH-M PSU – 2KW AC Power Module with Port-side Air Exhaust

Release 24.3.1

PSU2KW-DCPI

Cisco 8711-32FH-M PSU – 2KW DC Power Module with Port-side Air Intake

Release 24.3.1

PSU2KW-DCPE

Cisco 8711-32FH-M PSU – 2KW DC Power Module with Port-side Air Exhaust

Release 24.3.1

PSU2KW-DCPI

Cisco 8712-MOD-M PSU – 2KW 48V DC Power Module with Port-side Air Intake

Release 24.4.1

PSU2KW-DCPE

Cisco 8712-MOD-M PSU – 2KW 48V DC Power Module with Port-side Exhaust

Release 24.4.1

PSU2KW-ACPI 

Cisco 8712-MOD-M PSU – 2KW AC Power Module with Port-side Air Intake

Release 24.4.1

PSU2KW-ACPE

Cisco 8712-MOD-M PSU – 2KW AC Power Module with Port-side Exhaust

Release 24.4.1

Cisco 8800 Series Routers - Chassis

8804-SYS

Cisco 8800 Modular System - 10 RU with 4 Line Card Slots

Release 7.3.2

8808-SYS

Cisco 8800 Modular System - 16 RU with 8 Line Card Slots

Release 7.0.12

8812-SYS

Cisco 8800 Modular System - 21 RU with 12 Line Card Slots

Release 7.0.12

8818-SYS

Cisco 8800 Modular System - 33 RU with 18 Line Card Slots

Release 7.0.14

Cisco 8800 Series Routers - Route Processors

8800-RP

Cisco 8800 Route Processor - 4 Core

Release 7.0.12

8800-RP2

Cisco 8800 Route Processor - 8 Core

Release 7.11.1

Cisco 8800 Series Routers - Fabric Modules

8808-FC

Cisco 8808 System Fabric Module - Q100-based fabric modules with 14.4T per LC slot

Release 7.0.12

8812-FC

Cisco 8812 System Fabric Module - Q100-based fabric modules with 14.4T per LC slot

Release 7.0.12

8818-FC

Cisco 8818 System Fabric Module - Q100-based fabric modules with 14.4T per LC slot

Release 7.0.14

8808-FC0

Cisco 8808 System Fabric Module - Q200-based fabric modules with 14.4T per LC slot

Release 7.3.15

8818-FC0

Cisco 8818 System Fabric Module - Q200-based fabric modules with 14.4T per LC slot

Release 7.3.16

8804-FC0

Cisco 8804 System Fabric Module - Q200-based fabric modules with 14.4T per LC slot

Release 7.3.16

8808-FC1

Cisco 8808 System Fabric Module - F100-based fabric modules with 28.8T per LC slot

Release 24.2.1

8804-FC1

Cisco 8804 System Fabric Module - F100-based fabric modules with 28.8T per LC slot

Release 25.1.1

8818-FC1

Cisco 8818 System Fabric Module - F100-based fabric modules with 76T per LC slot

Release 26.1.1

Cisco 8800 Series Routers - Line Cards

8800-LC-48H

Cisco 8800 Line Card with MACsec - Q100 ASIC based 4.8 Tbps line card

Release 7.0.12

8800-LC-36FH

Cisco 8800 Line Card - Q100 ASIC based 14.4 Tbps line card

Release 7.0.12

88-LC0-36FH

Cisco 8800 Line Card - Q200 ASIC based 14.4 Tbps line card

Release 7.3.15

88-LC0-36FH-M

Cisco 8800 Line Card with MACsec- Q200 ASIC based 14.4 Tbps line card

Release 7.3.15

88-LC0-34H14FH

Cisco 8800 Line Card - Q200 ASIC based 9 Tbps line card

Release 7.3.3
Release 7.5.1

88-LC1-36EH

Cisco 8800 Line Card - P100 ASIC based 28.8 Tbps line card

Release 24.2.11

88-LC1-12TH24FH-E

Cisco 8800 Line Card - P100 ASIC based 12 Tbps line card

Release 24.3.1

88-LC1-52Y8H-EM

Cisco 8800 Line Card - P100 ASIC based 3.7 Tbps line card

Release 24.3.1

Cisco 8800 Series Routers – Power Supply Unit (PSU)

PSU4.8KW-DC100

4.8KW 48V 100A DC Power Supply

Release 7.3.2

PSU6.3KW-HV

6.3KW AC/HVAC/HVDC Power Supply

Release 7.0.12

PSU6.3KW-20A-HV

6.3KW AC/HVAC/HVDC Power Supply-20A

Release 7.0.12

Smart licensing

Provides information about Smart Licensing Using Policy solutions and their deployment on IOS XR routers.

Cisco 8000 documentation

Provides CDC documentation for Cisco 8000 series routers.

Transceiver Module Group (TMG) compatibility matrix

Allows searching by product family, product ID, data rate, reach, cable type, or form factor to determine the transceivers that Cisco hardware device supports.

Cisco IOS XR Error messages

Allows searching by release number, error strings, or comparing release numbers to view a detailed repository of error messages and descriptions.

Feature deprecation and removal details

Outlines the features currently supported by each operating system.

Feature deprecation phasing out insecure capabilities

Provides a list of insecure features and protocols that are scheduled for systematic deprecation and eventual removal from specified Cisco products.

Feature removal and suggested alternatives

Details the reasons why certain features or protocols are deemed insecure and offers secure alternatives when available.

Cisco IOS XR MIBs

Allows selecting the MIB of your choice from a drop-down to explore an extensive repository of MIB information.

Yang data models in GitHub

Provides yang data models introduced and enhanced in every IOS XR release.

Recommended release

Provides a general guide in case of upgrading IOS XR routers or new deployments that involve IOS XR routers.