This document describes a version roadmap of Cisco Intelligent WAN (iWAN) 2.x solution, it also includes dependencies on component releases and features introduced along with them.
iWAN is a solution, that consists of several pillars:
As a solution, iWAN has its own version roadmap and sometimes it's not easy to identify component releases that can fit into particular iWAN setup.
The iWAN version that you run is mostly determined by a set of features that are enabled on the compopents and device.
Solution's and individual component's versions must be aligned, as otherwise the setup becomes unsupported.
For example, in the next section you can see, that Multi-Tunnel Termination (MTT) feature was introduced with iWAN 2.2:
Effective on the publication date, there are several iWAN releases.
Table 1. List of iWAN releases and component minimum requirements:
*15.5(1)T1+ train was supported as well.** release 16.3.4 is not recommended for iWAN deployments due to defect CSCve98696; note 3.xS train is not supported on 2.2+ releases.
*** There are no iWAN 2.3 features, that could be ran on IOS; but IOS box could be a part of iWAN 2.3 domain.
**** Multi VRF PfR Monitoring is not supported.
^ DCA feature is not supported through IWAN App (should be configured on top or with a 3rd party tool).
iWAN 2.1.1 has had multiple maintenance releases and the release 2.1.1 MR3 has these minimum release requirements:
NOTE IOS-XE trains 3.17, 3.18, 16.1, 16.2, 16.4, 16.5 and 16.7 are not supported for iWAN deployments.
Please be aware, that iWAN upgrade process needs to be followed neatly. We have seen multiple situations when not following the process was causing iWAN components going down.
The upgrade procedure is available here: http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Intelligent_WAN/upgrade/iwan-upgrade.html
This is a list of features introduced across iWAN releases:
** Site-prefix splitting full support starting from the 16.9.2 and 16.10.1 releases.
This is a great summary and very helpful to understand which version of IWAN should be used for different use cases. Thank you for writing it up!
Development confirmed, that Polaris 16.9 train will be supported for iWAN deployments as "long term" release, while 16.8.2 will have only bug fixes.
BU has confirmed, that "FlexVPN as underlay transport" was tested and supported in iWAN 2.2.1 (even not included into the release notes).
BU confirmed, that 16.8.x is supported for iWAN, even though 16.9.x is the recommended one.
iWAN 2.3 release notes (first version) - https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Intelligent_WAN/release/notes/iwanrn-2-3.html - and will be improved shortly.
Thank you for the iWAN versions and release summary, this is great info and resource for us to support our current iWAN deployment. Please continue to update this info and we really appreciate your effort!BTW, the previous iWAN 2.3 release notes (first version) link was broken.
Releases 16.6.4 and 16.9.1 (tentatively 16.3.7, 16.8.1, 16.8.2 and 15.7(3)M3) are affected by bug CSCvm32630, thus highly NOT recommended for deployments.
Link to iWAN 2.3 release notes is https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Intelligent_WAN/release/notes/iwanrn-2-3.html
Notes on supported releases:
15.7M+15.8M+15.9M are supported for iWAN 2.2.1 deployments.
Also for IOS devices we do claim interoperability with iWAN 2.3 as far as IOS branch do not need to run any 2.3 features.
Please note, that an IOS branch should be running only IOS devices and both should be on the same version.
Releases 17.x are also supported for iWAN Deployments (considered as iWAN 2.3).
Please note, that iWAN EOL/EOS was announced - https://www.cisco.com/c/en/us/products/collateral/cloud-systems-management/application-policy-infrastructure-controller-enterprise-module/eos-eol-notice-c51-744532.html
The last supported train for iWAN will be 17.3.
Please also note, that starting from December 2020 - in order to make the transition from IWAN to Cisco SD-WAN smoother and faster - Cisco has exclusive promo for existing Cisco IWAN Customers. For the promo details please contact your account team or Cisco sales person.
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