Cisco IOS XRv router
runs the Cisco IOS XR software and operating system on generic virtualized
hardware based on Cisco IOS XR Software. It is provided as a virtual machine
(VM) supporting full virtualization, and can be deployed on any x86 hardware
(server or laptop) running standard hypervisors. It provides the functionality
of a route processor and a line card in a combined route processor line card
(RPLC) with both the route processor control plane functionality and the
network interfaces and associated LC functionality running on the same virtual
Cisco IOS XRv router
is a representation of the Cisco IOS XR Software and operating system, and does
not provide a virtual representation of any physical router. As a result, some
physical system components, such as line cards, fabric cards, and multichassis,
that are not appropriate for the VM setup, are not present in the Cisco IOS XRv
Cisco IOS XRv
supports the same control plane features and configurations that are supported
on the Cisco ASR 9000 Series Aggregation Services Routers and Cisco CRS
Routers. Cisco IOS XRv router does not support data plane and hardware specific
configurations. The configuration commands for control plane features follow
the same syntax as the Cisco ASR 9000 Series Aggregation Services Routers and
Cisco CRS Routers. See Cisco ASR 9000 Series Aggregation Services Routers and
Cisco CRS Router command references for more information on configuration
commands, at this link:
Cisco IOS XRv routers do not support Layer 2 features.
The Cisco IOS XRv
router provides these benefits of virtualization in the cloud environment.
independence—The Cisco IOS XRv router runs on a virtual machine, therefore, can
be supported on any x86 hardware supported by the virtualization platform.
resources—The resources used by the Cisco IOS XRv router are managed by the
hypervisor, and can be shared among VMs. The amount of hardware resources that
the VM server allocates to a specific VM, can be reallocated to another VM on
deployment—You can easily move a VM from one server to another. Thus, you can
move the Cisco IOS XRv Router from a server in one physical location to a
server in another physical location without moving any hardware resources.
The Cisco IOS XR
Software running on the Cisco IOS XRv router provides the following features:
features—Supports a wide range of IPv4 and IPv6 services and routing protocols
such as IPv4 unicast services, IPv6 unicast services, IPv4 Multicast services,
IPv4 and IPv6 equal-cost multi-path (ECMP), IPv4 and IPv6 load balancing, Cisco
Discovery Protocol, IPv4 and IPv6 addressing, and Internet Control Message
Layer 3 routing
protocols—Supports routing protocols such as Border Gateway Protocol Version 4
(BGPv4), Open Shortest Path First Version 2 (OSPFv2) and Version 3 (OSPFv3),
and Intermediate System-to-Intermediate System (IS-IS) protocol.
Label Switching (MPLS) Features—Supports MPLS features such as MPLS Label
Distribution Protocol (LDP), Resource Reservation Protocol (RSVP), Diffserv
Aware Traffic Engineering (TE), MPLS Traffic Engineering control plane (RFCs
2702 and 2430), MPLS forwarding and MPLS load balancing.
Management—This supports features like Enhanced CLI, XML interface and Simple
Network Management Protocol (SNMP) support.
Maintenance Update (SMU)—Support for applying fixes for software defects