Cisco CSR 1000V Series Cloud Services Routers Overview
The Cisco CSR 1000V Cloud Services Router is a cloud-based virtual router deployed on a virtual machine (VM) instance on x86 server hardware. It supports a subset of Cisco IOS XE software features and technologies, providing Cisco IOS XE security and switching features on a virtualization platform.
When the Cisco CSR 1000V is deployed on a VM, the Cisco IOS XE software functions as if it were deployed on a traditional Cisco hardware platform. You can configure different features depending on the Cisco IOS XE software image.
The Cisco CSR 1000V provides secure connectivity from an enterprise network (such as in a branch office or data center) to the public or private cloud.
A platform’s product landing page lists technology configuration guides for Cisco IOS XE technologies that the platform supports.
In each technology configuration guide, a Feature Information table indicates when a feature was introduced to the technology. For some features, the table also indicates when additional platforms have added support for the feature.
To determine whether a particular platform supports a technology, view the list of technology configuration guides posted on the platform’s product landing page.
The following sections describe the system requirements for the Cisco CSR 1000V Series Cloud Services Routers.
Cisco Unified Border Element (CUBE) is supported on Cisco CSR 1000V platforms running Cisco IOS XE Denali 16.2 release
For more information on CUBE support in Cisco IOS XE Denali 16.2, see: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/voice/cube/configuration/cube-book/read-me-first.html
Limitations and Restrictions in Cisco IOS XE Denali 16.2.1
In this release, the Cisco CSR 1000V supports ESXi and KVM hypervisors. Future Cisco IOS XE 16.x releases may support additional hypervisors.
REST API Management Container Images Compatible with Denali 16.2.1
When using the Cisco IOS XE REST API with the router, note the following limitation: If the router is operating with Cisco IOS XE Denali 16.2 or later, use the latest REST API management container image. Attempting to use a REST API container image released before Denali 16.2 may cause the router to crash repeatedly.
Caveats, or “bugs,” describe unexpected behavior. Severity 1 caveats are the most serious. Severity 2 caveats are less serious. Severity 3 caveats are moderate caveats. This section includes severity 1, severity 2, and selected severity 3 caveats.
The Dictionary of Internetworking Terms and Acronyms contains definitions of acronyms that are not defined in this document:
If you have an account on Cisco.com, you can also use the Bug Search Tool (BST) to find select caveats of any severity. To reach the Bug Search Tool, log into Cisco.com and go to https://tools.cisco.com/bugsearch/search.
If a defect that you have requested cannot be displayed, it may be because the defect number does not exist or the defect does not have a description available.
In the Product field, enter Cloud Services Router.
In the Releases field, enter one or more Cisco IOS XE releases of interest. The search results include caveats related to any of the releases entered in this field.
The tool provides autofill while you type in these fields to assist in entering valid values.
Releases beginning with 3.x have an equivalent release number beginning with 15.x, as shown in the following table. Include the 15.x equivalent to ensure that all relevant caveat results are displayed.
Table 2 Release Number Equivalents for Recent Releases
...search using the following equivalent release numbers
3.14 and 15.5(1).
3.15 and 15.5(2)
3.16 and 15.5(3)
3.17 and 15.6(1)
We recommend that you view the field notices for the current release to determine whether your software or hardware platforms are affected. You can access the field notices from the following location:
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Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any examples, command display output, network topology diagrams, and other figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses or phone numbers in illustrative content is unintentional and coincidental.