Release Notes for Cisco IWAN Release 2.3
This release notes document provide information about Cisco Intelligent WAN (IWAN) Solution, Release 2.3.
Contents
Introduction
This release notes provide a summary of the components in the latest release of the Cisco Intelligent Wide Area Network (Cisco IWAN) Solution.
Cisco IWAN is a prescriptive solution for leveraging multiple transport providers, including low cost business grade broadband services as part of your WAN transport strategy. IWAN is a suite of components that brings all the WAN optimization, performance routing, and security levels of leased lines and expensive MPLS VPN services to the public Internet. IWAN makes it possible to get the performance, reliability and security benefits of private and virtual private network services while allowing the option of using more attractively priced service offerings and require simpler peering relationships with the transport provider. The same prescriptive design may be used with any transport provider; an important flexibility to have when multiple regional providers are needed.
Cisco IWAN can be implemented using Command Line Interface (CLI) commands on the routers of the hub and branch sites.
Recommended Release for Cisco IWAN Release 2.3
It is recommended that you use Cisco IOS XE Fuji 16.9.1 for Cisco IWAN.
What’s New in Cisco IWAN Release 2.3
The new features and enhancements in Cisco IWAN Release 2.3, introduced via Cisco IOS XE Fuji 16.8.1 is as follows:
Direct Cloud Access IWAN 2.3
The Direct Cloud Access (DCA) feature helps customers to optimize their Software as a service (SaaS) applications (Office 365, Google, etc.) with better performance and reduced cost. It continuously measures and monitors the performance of each SaaS application along with local break out path as well as backhaul path, and chooses the suitable in policy path to provide the most optimal user experience.
For more information, see the following Cisco document: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/pfrv3/configuration/xe-16-8/pfrv3-xe-16-8-book/pfrv3-dca.html
 Note |
IWAN App does not support DCA. |
PfRv3 Site TC Splitting
The PfRv3 Site TC Splitting feature allows controlling the prefix length for the learned site prefixes. This allows controlling the granularity of the traffic class. thereby enabling better load sharing of the traffic classes. This feature is enabled by default.
For more information, see the following Cisco document: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/pfrv3/configuration/xe-16/pfrv3-xe-16-book/pfrv3-site-prefix.html.
System Requirements
The following sections describe the system requirements for Cisco IWAN 2.3, which are as follows:
Supported Cisco Platforms and Software Releases
Cisco IWAN 2.3
|
Platform |
Model |
Cisco IOS Software Release |
|---|---|---|
| Cisco ISR 4000 Series Routers |
ISR 4221 ISR 4321 ISR 4331 ISR 4351 ISR 4431 ISR 4451-X |
Cisco IOS XE Fuji 16.8.1 or higher maintenance releases of Cisco IOS XE Fuji 16.8.x. |
| Cisco ASR 1000 Series Routers |
ASR 1001 ASR 1001-X ASR 1001-HX ASR 1002 ASR 1002-X ASR 1002-HX ASR 1004 ASR 1006 ASR 1006-X ASR 1009-X ASR 1013 |
Cisco IOS XE Fuji 16.8.1 or higher maintenance releases of Cisco IOS XE Fuji 16.8.x. |
| Virtual Routers |
ENCS 5400 (ISRv) Cloud Services Router 1000v |
Cisco IOS XE Fuji 16.8.1 or higher maintenance releases of Cisco IOS XE Fuji 16.8.x. |
| Cisco ISR 1000 Series Routers |
C1111-4P C1111-4PLTEEA C1111-4PLTELA C1111-4PWA C1111-4PWB C1111-4PWD C1111-4PWE C1111-4PWF C1111-4PWH C1111-4PWN C1111-4PWQ C1111-4PWR C1111-4PWZ C1111-8P C1111-8PLTEEA C1111-8PLTEEAWA C1111-8PLTEEAWB C1111-8PLTEEAWE C1111-8PLTEEAWR C1111-8PLTELA C1111-8PLTELAWD C1111-8PLTELAWF C1111-8PLTELAWH C1111-8PLTELAWN C1111-8PLTELAWQ C1111-8PLTELAWZ C1111-8PWA C1111-8PWB C1111-8PWE C1111-8PWF C1111-8PWH C1111-8PWN C1111-8PWQ C1111-8PWR C1111-8PWZ C1116-4P C1116-4PLTEEA C1116-4PLTEEAWE C1116-4PWE C1117-4P C1117-4PLTEEA C1117-4PLTEEAWA C1117-4PLTEEAWE C1117-4PLTELA C1117-4PLTELAWZ C1117-4PM C1117-4PMLTEEA C1117-4PMLTEEAWE C1117-4PMWE C1117-4PWA C1117-4PWE C1117-4PWZ |
Cisco IOS XE Fuji 16.8.1 or higher maintenance releases of Cisco IOS XE Fuji 16.8.x. |
Note |
DCA feature is not supported on ISR-G2’s. |
Software Requirements
Cisco Wide Area Application Services
Cisco Wide Area Application Services (WAAS) release 6.4.1a or higher.
Cisco Prime Infrastructure
Cisco Prime Infrastructure release 3.1.5 or higher is supported in Cisco IWAN Release 2.3 for single VRF PfR and AVC Monitoring. Multi VRF PfR Monitoring is not supported.
IWAN Controller
IWAN Controller Release 1.5 is supported.
Note |
DCA feature is not supported through IWAN App. The IWAN App can be used to configured generic IWAN configurations. |
LiveAction
LiveAction version 6.2 or higher is suggested.
Platforms and their Roles
|
Platform |
Role |
|---|---|
| Cisco ISR 1000 Series Routers |
Branch site |
| Cisco ISR 4000 Series Routers |
Hub site (ISR 4451, ISR4431) with limited scale and performance; but not recommended. Branch site (ISR 4221, ISR 4321, ISR 4451, ISR 4431 models) Master controller, standby master controller or transit master controller (ISR 4451, ISR 4431 models) |
| Cisco ASR 1000 Series Routers |
Hub site Branch site Master controller, standby master controller or transit master controller. |
| Cisco CSR 1000v Series Routers |
Hub site Branch site Master controller, standby master controller or transit master controller. |
| Cisco ENCS Routers |
Hub site Branch site Master controller, standby master controller or transit master controller. |
Limitations and Restrictions
This section lists limitations and restrictions in Cisco IWAN 2.3:
-
All devices on a site—master and border routers—must have the same software version.
-
In IWAN POP, a PfRv3 master controller and a PfR border router must be configured in different devices.
- The recommended upgrade procedure must be completed. Upgrades can be incremental. The upgrade procedure is available here:
http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Intelligent_WAN/upgrade/iwan-upgrade.html
-
The following are the default commands in Cisco IWAN Release 2.3:
- ip nhrp shortcut
- if state nhrp
- ip nhrp multicast dynamic
- nhrp holdtime 600 seconds
Note: The above are default commands on devices with Cisco IOS XE Release Fuji 16.9.1.
-
The default unreachable timer in PfRv3 is 4 seconds.
-
If the branch devices are upgraded before the hub devices, the PfRv3 unreachable timer must be set to four seconds on the hub routers.
-
A message appears when a branch device, enabled with MD5 password, establishes a TCP connection with a master controller on port 17749. However, the branch device is not able to establish a connection because the server socket might not be open or the master controller may be down. This message might be misleading and has no functional impact on the system.
-
When the primary service provider link goes down, communication between spokes will be down. To avoid this, configure the max-secondary-path ibgp command when configuring EIGRP or BGP on a branch device. The value of the command must be n-1 where n is the number of service provider multiplied by number of data centers. If a network has two data centers and two service providers, the value of the command must be three.
Caveats
Cisco Bug Search Tool
For more information about how to use the Cisco Bug Search Tool , including how to set email alerts for bugs and to save bugs and searches, you can also see the Help & FAQ within the Bug Search Tool.
About the Bug Search Tool
This web-based tool provides you with access to the Cisco bug tracking system, which maintains information about bugs and vulnerabilities in this product and other Cisco hardware and software products. Within the Cisco Bug Search Tool, each bug is given a unique identifier (ID) with a pattern of CSCxxNNNNN, where x is any letter (a-z) and N is any number (0-9). The bug IDs are frequently referenced in Cisco documentation, such as Security Advisories, Field Notices and other Cisco support documents. Technical Assistance Center (TAC) engineers or other Cisco staff can also provide you with the ID for a specific bug. The Cisco Bug Search Tool enables you to filter the bugs so that you only see those in which you are interested.
In addition to being able to search for a specific bug ID, or for all bugs in a product and release, you can filter the open and/or resolved bugs by one or more of the following criteria:
- Last modified date
- Status, such as fixed (resolved) or open
- Severity
- Support cases
You can save searches that you perform frequently. You can also bookmark the URL for a search and email the URL for those search results
Before You Begin
You must have a Cisco.com account to log in and access the Cisco Bug Search Tool. If you do not have one, you can register for an account.
Using the Bug Search Tool
- In your browser, navigate to the Cisco Bug Search Tool.
- If you are redirected to a Log In page, enter your registered Cisco.com username and password and then, click Log In.
- To search for a specific bug, enter the bug ID in the Search For field and press Enter.
- To search for bugs related to a specific software release, do the following:
In the Product field, choose Series/Model from the drop-down list and then enter the product name in the text field. If you begin to type the product name, the Cisco Bug Search Tool provides you with a drop-down list of the top ten matches. If you do not see this product listed, continue typing to narrow the search results.
In the Releases field, enter the release for which you want to see bugs.
The Cisco Bug Search Tool displays a preview of the results of your search below your search criteria.
-
To see more content about a specific bug, you can do the following:
- Mouse over a bug in the preview to display a pop-up with more information about that bug.
- Click on the hyperlinked bug headline to open a page with the detailed bug information.
Caveats in Cisco IWAN 2.3
This section provides information about the caveats in Cisco IWAN 2.3.
|
Identifier |
Description |
|---|---|
| CSCvh62562 |
IWAN2.3: Umbrella policy does not give an option to get the DNS server info through dhcp |
| CSCvi31854 |
ASR1k (HUB BR) does not delete the cli configs from database |
| CSCvg87767 |
NBAR Standard application names not present in domain map config |
| CSCvh02442 |
IWAN2.3 DCA Ingress ping or other mechanism needed |
Software Download Information
The following table provides the path on Download Software page for downloading the software for Cisco IWAN Release 2.3.
|
Software |
Path |
|---|---|
|
Cisco IOS XE Software |
Downloads Home > IOS and NX-OS Software > IOS XE > IOS XE S > IOS XE 3S > Routers > product series > platform series > platform > IOS XE Software > Fuji-16.9.1(ED) For more information, see, Software Download: ASR 1002-HX Router page. |
|
Prime Infrastructure 3.1 Software |
Downloads Home > Products > Cloud and Systems Management > Routing and Switching Management > Network Management Solutions > Prime Infrastructure > Prime Infrastructure 3.1 > Prime Infrastructure Patches-3.1.5 For more information, see Software Download: Prime Infrastructure 3.1 page. |
|
Cisco Application Policy Infrastructure Controller Enterprise Module (APIC-EM) 1.4 Software |
Products > Cloud and Systems Management > Policy and Automation Controllers > Application Policy Infrastructure Controller Enterprise Module (APIC-EM) > APIC-1.4 (IWAN) For more information, see Software Download: Application Policy Infrastructure Controller Enterprise Module (APIC-EM). |
|
Cisco Wide Area Application Services Software |
Products > Application Networking Services > Wide Area Application Services > Wide Area Application Services (WAAS) Software > Wide Area Application Services (WAAS) Software-6.4.1a For more information, see Software Download: Products. |
Related Documentation
|
Documentation |
Description |
|---|---|
|
Cisco Application Policy Infrastructure Controller Enterprise Module Deployment Guide |
Information about the underlying Cisco APIC-EM product including deployment steps, verification, and troubleshooting. |
|
Cisco IWAN designs are explained in the Cisco IWAN technology design guides. Look for the guides in the Cisco Validated Designs (CVDs) |
|
|
PnP Agent documentation for Cisco IOS XE. |
|
|
Refer to this guide for information about Cisco Prime Infrastructure, which can be used to configure Cisco IWAN. |
|
|
Description of the features and caveats for Cisco Prime Infrastructure. |
|
|
Documents the PnP server application in the APIC-EM. |
|
|
Documentation on LiveAction software. |
|
|
Description of the features, system requirements, prerequisites, and caveats for the Cisco Intelligent Wide Area Network Application (Cisco IWAN App). |
|
|
Description of the features and caveats for Cisco Network Plug and Play. |
|
|
Release Notes for the Cisco Application Policy Infrastructure Controller Enterprise Module |
Description of the features and caveats for the Cisco Application Policy Infrastructure Controller Enterprise Module (Cisco APIC-EM). |
|
Overview of the Plug and Play solution, component descriptions, summary of major use cases, and basic deployment requirements, guidelines, limitations, prerequisites, and troubleshooting tips. |
|
|
Information about the installation, deployment, configuration of Cisco IWAN on APIC-EM. Explains the Cisco IWAN GUI and how to manage connected devices and hosts within your network. |
Obtain Documentation and Submit a Service Request
For information on obtaining documentation, using the Cisco Bug Search Tool (BST), submitting a service request, and gathering additional information, see What’s New in Cisco Product Documentation .
To receive new and revised Cisco technical content directly to your desktop, you can subscribe to the What’s New in Cisco Product Documentation RSS feed . The RSS feeds are a free service.
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