Release Notes for Cisco IOS XRd, IOS XR Release

XRd is a powerful IOS XR virtual platform that supports a wide variety of technology roles such as virtual route reflector (vRR), virtual cell-site router (vCSR), and virtual provider-edge (vPE). It is available in a containerized form-factor enabling both standalone and Kubernetes-based containerized network deployments.

Cisco IOS XRd Overview

XRd is the latest virtual platform from Cisco that brings the highly scalable, feature-rich, and reliable IOS-XR operating system to containerized network deployments. With XR control plane pedigree shared with the likes of Cisco 8000 and data plane capabilities that are derived from the powerful XRv9000, XRd brings the best of both worlds - enabling high scale control plane use cases such as virtual route-reflector (vRR) and high throughput requirements in virtual provider edge (vPE).

XRd is available in two formats:

  • XRd Control Plane

  • XRd vRouter

Cisco IOS XRd Licensing Model

The Cisco IOS XRd platform offers two types of licensing schemes. This table lists details of Cisco IOS XRd Router's software licenses or entitlements, arranged according to licensing PIDs.

The Cisco IOS XRd instances are pre-loaded with an evaluation license valid for 90 days. For licenses post the evaluation period, you can purchase the XRd licenses using Cisco Smart Licensing.

Table 1. Cisco IOS XRd Licensing PIDs

PIDs

Description

XRD-VR-CP

XRd Control Plane

What's New in Cisco IOS XR Release

Software Features Introduced

The following user scenarios are supported with this release:

User Scenarios Deployment

vPE

  • Standalone Docker

  • OpenShift based K8s

vRR

  • Standalone Docker

  • OpenShift based K8s

vCSR

VMware Tanzu based K8s

Simulation

  • Manual Testing

  • Automation

  • CI/CD Workflows

Cisco is continuously enhancing the product with every release and this section lists key features. It also includes links to detailed documentation, where available.

Cisco IOS XRd supports majority of the Cisco IOS XR technologies.The following sections detail the feature set per user scenarios:

vRR

  • ORR for IPv6 Unicast AF for the single ISIS topology case

Host Requirements

This section details the host requirements for XRd Control Plane :

Table 2. XRd Control Plane
Parameter Requirement

XRd Control Plane Host

CPU

x86-64 CPU with at least 2 cores

RAM

4 GB

Linux kernel

Version 4 and above

Note

 

The Linux kernel must install the dummy and nf_tables modules.

Linux cgroups

Version 1

Note

 

Support for unified hierarchy cgroups is not available.

XRd Control Plane instance on the host

CPU

1 core minimum

RAM

2 GB minimum

Inotify user instances and watches

4000

XRd Control Plane on AWS EC2 instance

Instance Type

m5.2xlarge

Number of threads per processor core

1

Minimum Disk Size

8 GB

Note

 

A XRd instance requires the minimum disk size of 8 GB, but there may be demand for additional disk space depending on how the node handles core files.

Operating System

Amazon Linux 2 with EKS Optimizations

Kernel Settings

4000 inotify user instances and watches per XRd instance


Note


For using Docker to run the containers, you need Docker version 18 or above with permission to run Docker containers.



Note


Cisco IOS XRd is not supported for production networks on Linux, including Ubuntu or any other distribution. Carefully consider this restriction when planning deployments to avoid potential issues.