Release Notes for Cisco IWAN Release2.2.1
Recommended Release for Cisco IWAN Release 2.2.1
What’s New in Cisco IWAN Release 2.2.1
PfRv3 Per Interface Probe Tuning
Cisco Software-Defined Application Visibility and Control (SD-AVC)
Supported Cisco Platforms and Software Releases
Caveats in Cisco IWAN Release 2.2.1
Caveats in Cisco IWAN Release 2.2.1
Caveats in Prime Infrastructure 3.2
Communications, Services, and Additional Information
This release notes document provide information about Cisco Intelligent WAN (IWAN) Solution, Release 2.2.1.
■Recommended Release for Cisco IWAN Release 2.2.1
■What’s New in Cisco IWAN Release 2.2.1
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.
The recommended release for Cisco IWAN Release 2.2.1 is Cisco IOS XE Everest 16.6.4. However, if you wish to use Cisco IOS XE Denali16.3.x releases, use the latest release.
The new features and enhancements in Cisco IWAN Release 2.2.1, introduced via Cisco IOS XE Everest 16.6.1 are as follows:
■PfRv3 Per Interface Probe Tuning
■Cisco Software-Defined Application Visibility and Control (SD-AVC)
Starting with Cisco IOS XE Denali 16.3.5c and Cisco IOS XE Everest 16.6.1, the PFRv3 Site prefix feature enhances networks running Performance Routing Version3 (PfRv3) to learn local site prefixes from the Routing Information Base (RIB) table as well as track the remote site prefix using RIB.
For more information, see the following Cisco document:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/pfrv3/configuration/xe-16-6/pfrv3-xe-16-6-book/pfrv3-remote-prefix.html
Note: Site prefix splitting feature is not supported in this release.
Starting with Cisco IOS XE Everest 16.6.1, the PfRv3 Per Interface Probe Tuning feature provides the flexibility to specify different profiles for a channel associated with an interface thereby allowing you to measure the metrics of a channel.
For more information, see the following Cisco document:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/pfrv3/configuration/xe-16-6/pfrv3-xe-16-6-book/pfrv3-int-probe.html
Starting with Cisco IOS XE Everest 16.6.1, the PfRv3-Inter-DC-Optimization feature provides support by routing traffic from a hub site to another for specific traffic types such as data, voice, video, etc.
For more information, see the following Cisco document:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/pfrv3/configuration/xe-16-6/pfrv3-xe-16-6-book/pfrv3-inter-dc.html
Cisco SD-AVC is a component of Cisco AVC, operating as a centralized network service, and providing the following benefits:
■Network-level application recognition consistent across the network
■Improved application recognition in symmetric and asymmetric routing environments
■Improved first packet classification
■Protocol Pack update at the network level
■Secure browser-based dashboard over HTTPS
The SD-AVC network service can be hosted on one of the IWAN hub routers and does not require any change to the IWAN network topology. This feature is available in Cisco IOS XE Everest 16.6.1.
For more information, see the following Cisco document:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/avc/sd-avc/1-1-0/ug/sd-avc-1-1-0-ug.html
The following sections describe the system requirements for Cisco IWAN Release 2.2.1, which are as follows:
Cisco IWAN Release 2.2.1 supports the following Cisco devices and software releases.
Cisco Wide Area Application Services
Cisco Wide Area Application Services (WAAS) release 6.2.3c or higher.
Cisco Prime Infrastructure release 3.2 or higher is supported in Cisco IWAN Release 2.2.1.
This section lists limitations and restrictions in Cisco IWAN 2.2.1:
■All devices on a site—master and border routers—must have the same software version.
■In IWAN POP, a PfR 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 2.2.1:
Note: The above are default commands on devices with Cisco IOS XE Denali 16.3.3, not for devices with Cisco IOS Release 15.6(3)M2 and Cisco IOS Release 15.7(3)M.
■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 in Cisco IWAN Release 2.2.1
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.
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:
■Status, such as fixed (resolved) or open
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
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.
1. In your browser, navigate to the Cisco Bug Search Tool.
2. If you are redirected to a Log In page, enter your registered Cisco.com username and password and then, click Log In.
3. To search for a specific bug, enter the bug ID in the Search For field and press Enter.
4. 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.
5. 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.
This section provides information about the caveats in Cisco IWAN Release 2.2.1.
The following table provides the path on Download Software page for downloading the software for Cisco IWAN Release 2.2.1.
Downloads Home > Products > IOS and NX-OS Software > IOS XE > IOS XE S > IOS XE Release 2 > Routers > platform > IOS XE Software-Everest-16.6.1 |
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Downloads Home > Products > IOS and NX-OS Software > IOS > IOS Software Release 15M&T > IOS Software Release 15.6M&T > Routers > platform > IOS Software-15.7(3)M |
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Downloads Home > Products > Cloud and Systems Management > Routing and Switching Management > Network Management Solutions > Prime Infrastructure > Prime Infrastructure 3.2 > Prime Infrastructure Patches-3.2 |
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Cisco Intelligent Wide Area Network Application (IWAN App) 1.5.1 Software' |
Products > Cloud and Systems Management > Policy and Automation Controllers > Application Policy Infrastructure Controller Enterprise Module (APIC-EM) > APIC-1.5 (IWAN) |
Downloads Home > Products > Application Networking Services > Wide Area Application Services > Wide Area Application Services (WAAS) Software > Wide Area Application Services (WAAS) Software-6.2.3c ( https://software.cisco.com/download/release.html?mdfid=280484571&flowid=122&softwareid=280836712&release=5.5.7b&relind=AVAILABLE&rellifecycle=&reltype=latest) |
Cisco Application Policy Infrastructure Controller Enterprise Module Deployment Guide |
Information about the underlying Cisco APIC-EM product including deployment steps, verification, and troubleshooting. |
Description of the features, system requirements, prerequisites, and caveats for the Cisco Intelligent Wide Area Network Application (Cisco IWAN App) on APIC-EM. |
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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. |
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Cisco IWAN designs are explained in the Cisco IWAN technology design guides. Look for the guides in the Cisco Validated Designs (CVDs). |
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Information about configuration guides, deployment guides, release notes, and other Cisco Prime Infrastructure documentation. |
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Description of the features and caveats for Cisco Network Plug and Play. |
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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. |
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Cisco Bug Search Tool (BST) is a web-based tool that acts as a gateway to the Cisco bug tracking system that maintains a comprehensive list of defects and vulnerabilities in Cisco products and software. BST provides you with detailed defect information about your products and software.
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