Release Notes for Cisco IOS XRv 9000 Router, IOS XR Release


Note

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

Cisco IOS XRv 9000 Router is a cloud-based router that is deployed on a virtual machine (VM) instance on x86 server hardware running 64 bit IOS XR software. Cisco IOS XRv 9000 Router provides traditional Provider Edge (PE) services in a virtualized form factor, as well as virtual Route Reflector (vRR) capabilities.


Note
Cisco IOS XR Release 7.1.2 is an Extended Maintenance Release of Cisco IOS XR Release 7.1.1 for Cisco IOS XRv 9000 routers. For more details on the Cisco IOS XR release model and associated support, see Guidelines for Cisco IOS XR Software.

Cisco IOS XRv 9000 Router Overview

The Cisco IOS XRv 9000 Router is based on Cisco IOS XR software, so it inherits and shares the wide breadth of routing functionality available on other IOS XR platforms. The IOS XR features available on the Cisco IOS XRv 9000 Router are discussed in Supported Cisco IOS XR Technologies section.

When the Cisco IOS XRv 9000 Router virtual IOS XR software is deployed as a VM, the Cisco IOS XR software functions just as if it were deployed on a traditional Cisco IOS XR hardware platform. The Cisco IOS XRv 9000 Router combines Route Processor, Line Card, and virtualized forwarding capabilities into a single, centralized forwarding instance. The Cisco IOS XRv 9000 Router has a fully featured, high speed virtual x86 data plane.

Cisco IOS XRv 9000 Router supports the same look and feel as Cisco ASR 9000 Series Aggregation Services Routers and North-bound APIs. Cisco IOS XRv 9000 Router does not support hardware specific configurations. The configuration commands for control plane and data plane features follow the same syntax as the Cisco ASR 9000 Series Aggregation Services Routers. See Cisco ASR 9000 Series Aggregation Services Routers command references for more information on configuration commands.

Cisco IOS XRv 9000 Router Licensing Model

The Cisco IOS XRv 9000 Router supports activation using Cisco Smart Licensing. By default the Cisco IOS XRv 9000 Router (without license) is rate limited to 200 Kbps.

For more information on licensing model supported on Cisco IOS XRv 9000 Router, see the Cisco IOS XRv 9000 Router Smart Licensing chapter in the Cisco IOS XRv 9000 Router Installation and Configuration Guide.

See Cisco Smart Software Licensing Overview for more information on Cisco Smart Licensing.

License Ordering Information

The Cisco IOS XRv 9000 Router offers a flexible licensing scheme, with multiple tiers to choose from, such as Scale, and Throughput. This table lists details of Cisco IOS XRv 9000 Router's pool of software licenses or entitlements, arranged according to licensing PIDs.


Note

The XRv9000 router only consumes and reports VPE licenses. VRR licenses are not consumed or reported.
Table 1. Cisco IOS XRv 9000 Router UCS M5 Based vRR Appliance PIDS

License PID

Description

R-XRV9000-66-RR

Cisco IOS XRV 9000 software, VRR profile

S-XRV-ROUTE-T4

Preloaded Software Image: IOS XRv 9000 vRR scale upgrade license from 20M up to 70M

XRV9000-APLN-ROUT

IOS XRv 9000 M5 Appliance with preloaded IOS XR functionality with 20 million route scale

Supported MIBs

The following MIBs are supported in this release:

  • ENTITY-MIB

  • ENTITY-STATE-MIB

  • CISCO-ENTITY-ASSET-MIB

  • BGP4-MIB

  • CISCO-AAA-SERVER-MIB

  • CISCO-ACL-MIB

  • CISCO-BGP4-MIB

  • CISCO-BULK-FILE-MIB

  • CISCO-CDP-MIB

  • CISCO-CLASS-BASED-QOS-MIB

  • CISCO-CONFIG-COPY-MIB

  • CISCO-CONFIG-MAN-MIB

  • CISCO-CONTEXT-MAPPING-MIB

  • CISCO-FTP-CLIENT-MIB

  • CISCO-IF-EXTENSION-MIB

  • CISCO-PING-MIB

  • CISCO-PROCESS-MIB

  • CISCO-SYSLOG-MIB

  • CISCO-SYSTEM-MIB

  • CISCO-TCP-MIB

  • CISCO-VLAN-IFTABLE-RELATIONSHIP-MIB

  • ETHERLIKE-MIB

  • EVENT-MIB

  • EXPRESSION-MIB

  • IETF-TCP-MIB

  • IETF-UDP-MIB

  • IF-MIB

  • IP-FORWARD-MIB

  • IP-MIB

  • IPV6-MIB

  • IPV6-FORWARD-MIB

  • ISIS-MIB

  • MPLS-L3VPN-STD-MIB

  • MPLS-LDP-GENERIC-STD-MIB

  • MPLS-LDP-STD-MIB

  • MPLS-LSR-STD-MI

  • NOTIFICATION-LOG-MIB

  • OSPF-MIB

  • OSPF-TRAP-MIB

  • OSPFV3-MIB

  • RFC1213-MIB

  • RFC2011-MIB

  • RFC2465-MIB

  • SNMP-COMMUNITY-MIB

  • SNMP-FRAMEWORK-MIB

  • SNMP-NOTIFICATION-MIB

  • SNMP-TARGET-MIB

  • SNMP-USB-MIB

  • SNMPv2-MIB

  • SNMP-VACM-MIB

  • TCP-MIB

  • UDP-MIB

  • CISCO-IETF-BFD-MIB

  • CISCO-IP-TAP-MIB

  • CISCO-TAP2-MIB

  • RADIUS-ACC-CLIENT-MIB

  • RADIUS-AUTH-CLIENT-MIB

  • SNMP-TARGET-MIB

Software Features Introduced in this Release

There are no new software features introduced in this release.

System Requirements

Appliance Model

Cisco IOS XRv 9000 Appliance is the pre-installed Cisco IOS XRv 9000 Router software that is sent from the factory on a bare metal UCS server hardware. It supports hyper scalability as it can scale to 70 Million route prefixes when run as a Virtual Route Reflector. Therefore, the extra layer of software (hypervisor) is not required.

The Appliance also supports Zero Touch Provisioning (ZTP) which allows easier insertion into existing networks. Current offering is based on UCS M5 Servers, comes with 2 Intel X710 quad-port 10G SFP+ NICs.

Hypervisors

A hypervisor enables multiple operating systems to share a single hardware host machine. While each operating system appears to have the dedicated use of the host's processor, memory, and other resources; the hypervisor controls and allocates only needed resources to each operating system and ensures that the operating systems (VMs) do not disrupt each other.

Installation of the Cisco IOS XRv 9000 Router is supported on selected Type 1 (native, bare metal) hypervisors. Installation is not supported on Type 2 (hosted) hypervisors, such as VMware Fusion, VMware Player, or Virtual Box. The following table lists release specific supported hypervisor versions.

Table 2. Support Matrix for Hypervisor Versions

Cisco IOS XR Version

VMWare ESXi

Kernel Based Virtual Machine (KVM)

Release 7.1.2

version 6.5, 6.7

Linux KVM based on

  • Red Hat Enterprise Linux 7, 7.1, 7.2, 7.3, 7.4, 7.5, 7.6, 7.7, and 8.0

  • Ubuntu 14.04.03 LTS

  • Ubuntu 16.04 LTS

  • CentOS 7, 7.1, 7.2, 7.3, 7.4, 7.5, 7.6, and 7.7

  • Openstack 10

Virtual Machines

Cisco IOS XRv 9000 Router virtual machines must meet the following requirements:

Table 3. VM Requirement for VMware Environment

Parameters

Supported

VMware ESXi

Version 6.5, 6.7, 7.0 and later

Virtual CPU cores

1 socket with a minimum of 2 cores

Note

 

For production environment minimum of 4 cores is recommended.

Virtual Machine memory size

12GB minimum, 19GB recommended for 10G interfaces

Virtual Machine hard disk size

64GB minimum for vPE and vRR image variants

Virtual Interfaces

  • E1000

  • VMXNET3 for traffic interfaces only

Physical NICs

For pass-through:

  • Intel i350 Quad Port 1Gb Adapter

  • Intel Dual Port 10 GbE Ethernet X520 Server Adapter

  • Intel 4 port 10GE Fortville

    Note

     

    PCI passthrough only. SRIOV is not support.

Note

 

Intel Forville has a lower forwarding capability (for high throughput applications in vPE profiles) when compared with Intel 82599 10GE Controller.

Cisco UCS Virtual Interface Card (VIC) 1225

Note

 

If you are configuring LLDP on Cisco IOS XRv 9000, then you must first disable LLDP in the Cisco UCS VIC 1225 via Cisco Integrated Management Controller (CIMC).

Number of interfaces

Maximum of 11 NICs where:

  • 1 for management

  • 2 are reserved

  • 8 for traffic

Default video, SCSI controller set

Required

SCSI controller not required for IDE disk.

Virtual CD/DVD drive installed

Virtual CD/DVD is required when installing the Cisco IOS XRv 9000 Router on the VM using ISO template.

IDE hard disk

Single IDE hard disk

Note

 

Multiple hard disk drives on a VM are not supported.


Note

The maximum traffic performance with pass-through NIC interfaces in ESXi is lower than the performance that can be achieved in KVM environments. This is because it is not possible to configure 1G huge-pages in the ESXi hypervisor (as of VMware ESXi 6.0).

Table 4. VM Requirement for KVM Environment

Parameters

Supported

KVM versions

  • Linux KVM based on Red Hat Enterprise Linux 7, 7.1, 7.2, 7.3 and 7.4

  • Ubuntu 14.04.03 LTS Server 64 Bits

  • Ubuntu 16.04 LTS

  • Openstack Release 5 (Icehouse), Openstack Juno/Icehouse (RHEL 7), Kilo (RHEL 7.1), Liberty (RHEL 7.2), Openstack 10 (Newton)

  • CentOS 7, 7.1, 7.2, 7.3, 7.4, 7.5, 7.6, and 7.7

Virtual CPU cores

1 socket with minimum of 2 cores.

Virtual Machine memory size

12GB Minimum, 19GB recommended for 10G interfaces

Virtual Machine hard disk size

64GB minimum

Virtual Interfaces

E1000, VirtIO and

VMXNET3 for traffic interfaces only

Physical NICs

For pass-through:

  • Intel i350 Quad Port 1Gb Adapter

  • Intel Dual Port 10 GbE Ethernet X520 Server Adapter

  • Intel 4 port 10GE Fortville

    Note

     

    PCI passthrough only. SRIOV is not support.

Note

 

Intel Forville has a lower forwarding capability (for high throughput applications in vPE profiles) when compared with Intel 82599 10GE Controller.

Cisco UCS Virtual Interface Card (VIC) 1225

Note

 

If you are configuring LLDP on Cisco IOS XRv 9000, then you must first disable LLDP in the Cisco UCS VIC 1225 via Cisco Integrated Management Controller (CIMC).

Number of interfaces

Minimum of 4 NICs where:

  • 1 is for management

  • 2 are reserved

  • 1 is for traffic

Maximum of 11 NICs where:

  • 1 is for management

  • 2 are reserved

  • 8 is for traffic

Virtual CD/DVD drive installed

Virtual CD/DVD drive is required for ISO installation


Note

In the Cisco IOS XRv 9000 Router, some CPU cores are dedicated to the control plane while others are dedicated to the data plane. Each data plane's core runs a single thread that performs packet forwarding. To achieve maximum performance, these threads constantly look for data packets to process. As a result, the OS records that these cores run at 100% utilization. This is expected behavior and not an indication that packet forwarding has reached its threshold limit.

Server

The server must support:

  • Intel Westmere or later CPU versions with clock frequency of 2.0GHz for instances with Gigabit or paravirtualized interfaces

  • Intel Ivy Bridge or later CPU versions for instances with 10Gb or higher interfaces

  • Intel CPU must support the sse4_2 capability flag. This can be checked in KVM by looking for the sse4_2 flag in the flags section of /proc/cpuinfo. For example: 
    cat /proc/cpuinfo | grep sse4_2
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon nopl xtopology tsc_reliable nonstop_tsc aperfmperf pni pclmulqdq vmx ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand hypervisor lahf_lm ida arat epb pln pts dtherm tpr_shadow vnmi ept vpid fsgsbase smep

Note
To use passthrough interfaces in KVM, you must set the option intel_iommu=on command in the grub configuration.

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).

The upgrade document (XRV9000_Upgrade_Downgrade_MOP_7.1.2.pdf) is available along with the software images.


Note

The FPD related commands are not supported on IOS XRv 9000 Appliance. That includes fpd auto-upgrade command.

Supported Cisco IOS XR Technologies

Cisco IOS XRv 9000 Router supports selected Cisco IOS XR technologies.

This table lists the major Cisco IOS XR technologies Cisco IOS XRv 9000 supports. Not all features in a given technology may be supported. To verify support for specific features, use Cisco Feature Navigator.

Table 5. Cisco IOS XR Technologies Supported on the Cisco IOS XRv 9000 Router

Feature

See the Following Documentation

Introduced in Release

  • Bi-directional Policing and Marking

Release 5.4.0

  • BGP Persistence

Release 6.2.1

Customize Installation using Golden ISO

Customize Installation using Golden ISO

 Release 7.3.1

Cisco IOS XRv 9000 Router Deployment on AWS

Release 6.3.1

Create User Profiles and Assign Privileges

System Setup and Software Installation Guide for Cisco ASR 9000 Series Routers

Release 7.1.1

  • Early Fast Discard

Release 5.4.0

  • HSRP

  • VRRP

Release 6.2.1

  • IPv4 Routing

  • IPv6 Routing

  • OSPF

  • ISIS

Release 5.4.0

  • IPv4 and IPv6 ACL

Release 5.4.0

  • IPv4 L3VPN

  • 6PE, 6VPE

Release 5.4.0

  • Lawful Intercept

Release 5.4.0

  • LDP

Release 5.4.0

  • LPTS

Release 5.4.0

  • MPLS

Release 5.4.0

  • MP-BGP, EBGP PE-CE

Release 5.4.0

  • NSH Proxy Mode

Cisco IOS XRv 9000 Router Specific Features

Release 6.2.1

  • RT Constriant

Release 6.2.1

Caveats

Caveats describe unexpected behavior in Cisco IOS XRv 9000 Software releases. Severity-1 caveats are the most critical caveats; severity-2 caveats are less critical.

Cisco IOS XR Caveats

These caveats are applicable for Cisco IOS XR Software:

Bug ID

Headline
CSCvv09667 After RP failover SR-policy counters are getting lost

CSCvu27946

"ssh_server drbg_instantiate failed" syslog seen in SSH scale

Caveats Specific to the XRv 9000 Router

There are no caveats in this release.

Other Important Information

  • Starting with IOS-XR Release 7.1.2, you can configure a sub-interface as an EVPN Core. Previously, EVPN Core interface was not supported on a sub-interface. For more information on EVPN, see EVPN Features.

  • Before upgrading to Cisco IOS XR Release 7.1.2, if you configured and committed the set qos-group and set dscp options as part of the same policy on your router, the interface manager (ifmgr) crashes and the syslog displays the following error:

    “A policy with set qos-group AND set dscp is not supported. Note that this error does not impact any upgrade operations. For details, see the Release Notes”.


    Note

    This crash does not affect your upgrade process. The ifmgr restarts twice and ensures that the upgrade is successful.

  • For the XRv 9000 platform, minimum transmission period supported for the Link Aggregation Control Protocol (LACP) is 200 milliseconds.

  • LFA FRR feature is not supported.

Related Documentation

The most current Cisco IOS XRv 9000 Router software documentation is located at this URL:

http://www.cisco.com/c/en/us/support/routers/ios-xrv-9000-router/tsd-products-support-series-home.html

The document containing Cisco IOS XR System Error Messages (SEM) is located at this URL:

https://www.cisco.com/c/en/us/td/docs/ios_xr_sw/error/message/ios-xr-sem-guide.html

Production Software Maintenance Updates (SMUs)

A production SMU is a SMU that is formally requested, developed, tested, and released. Production SMUs are intended for use in a live network environment and are formally supported by the Cisco TAC and the relevant development teams. Software bugs identified through software recommendations or Bug Search Tools are not a basis for production SMU requests.

For information on production SMU types, refer the Production SMU Types section of the IOS XR Software Maintenance Updates (SMUs) guide.

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