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Table Of Contents
Release Notes for Cisco 800 Series Integrated Services Routers with Cisco IOS Release 12.4(20)YA
Determining the Software Version
Upgrading to a New Software Release
New Hardware Features in Cisco IOS Release 12.4(20)YA3
New Software Features in Cisco IOS Release 12.4(20)YA3
Embedded Access Point HTML GUI
Open Caveats - Release 12.4(20)YA3
Resolved Caveats - Release 12.4(20)YA3
Cisco IOS Software Documentation Set
Release Notes for Cisco 800 Series Integrated Services Routers with Cisco IOS Release 12.4(20)YA
First Released: April 7, 2009Last Revised: April 6, 2009Cisco IOS Release 12.4(20)YA3OL-19218-01 First ReleaseThese release notes describe new features and significant software components for the Cisco 800 series Integrated Services Routers (ISRs) that support Cisco IOS Release 12.4(20)YA. These release notes are updated as needed. Use these release notes with the Cross-Platform Release Notes for Cisco IOS Release 12.4T and About Cisco IOS Release Notes.
For a list of the software caveats that apply to the Release 12.4(20)YA releases, see the "Caveats" section, and see the online Caveats for Cisco IOS Release 12.4(15)T document. The caveats document is updated for every 12.4T maintenance release.
Contents
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Embedded Access Point HTML GUI
System Requirements
This section describes the system requirements for Cisco IOS Release 12.4(20)YA and includes the following sections:
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Memory Requirements
lists the memory requirements for the Cisco IOS feature sets that are supported by Cisco IOS Release 12.4(20)YA on the Cisco 800 series routers.
Hardware Supported
Cisco IOS Release 12.4(20)YA supports the following routers:
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For detailed descriptions of new hardware features and which features are supported on each router, see the "New and Changed Information" section.
Determining the Software Version
To determine the version of Cisco IOS software currently running on your Cisco 800 series router, see About Cisco IOS Release Notes located at http://www.cisco.com/en/US/docs/ios/12_4/12_4x/12_4xy15/ReleaseNote.html.
Upgrading to a New Software Release
For general information about upgrading to a new software release, see About Cisco IOS Release Notes located at http://www.cisco.com/en/US/docs/ios/12_4/12_4x/12_4xy15/ReleaseNote.html.
Feature Set Tables
For information about Feature Set Tables, see About Cisco IOS Release Notes located at http://www.cisco.com/en/US/docs/ios/12_4/12_4x/12_4xy15/ReleaseNote.html.
New and Changed Information
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New Hardware Features in Cisco IOS Release 12.4(20)YA3
There are no new hardware features in this release.
New Software Features in Cisco IOS Release 12.4(20)YA3
There are no new software features in this release.
New Features in Release 12.4T
For information regarding the features supported in Cisco IOS Release 12.4T, see the Cross-Platform Release Notes links at: http://www.cisco.com/en/US/products/ps6441/prod_release_notes_list.html
Embedded Access Point HTML GUI
The Cisco 800 Series ISRs provide HTML GUI access and configuration for the wireless device. First, establish a wireless configuration session to the access wireless device, and then you can access the HTML GUI through a browser using the IP address of the BVI interface. This HTML GUI is based on Cisco Aironet 1250 Access Point's GUI and reflects the same features and functionality. Differences in feature support are noted below:
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Note
Caveats
For general information on caveats and the bug toolkit, see About Cisco IOS Release Notes located at http://www.cisco.com/en/US/docs/ios/12_4/12_4x/12_4xy15/ReleaseNote.html.
This section contains the following caveat information:
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Open Caveats - Release 12.4(20)YA3
There are no open caveats in this release.
Resolved Caveats - Release 12.4(20)YA3
CSCsu84868 c3845: Error mesg %SYS-2-BADSHARE: Bad refcount in datagram_done.Symptom Cisco 3845 experiences trackback error:
Aug 14 12:34:55.960: %SYS-2-BADSHARE: Bad refcount in datagram_done, ptr=7006C010, count=0, -Traceback= 0x61816650 0x60641BD0 0x60C27A80 Aug 17 16:51:45.739: %SYS-2-BADSHARE: Bad refcount in datagram_done, ptr=705985A4, count=0, -Traceback= 0x61816650 0x60641BD0 0x60C27A80
Conditions
Workaround
CSCsy22826 VG224 sending incorrect ssType in 1+ node CUCM cluster.Symptom VG224 endpoint does not connect to callback destination, once the callback destination is idle.
Conditions
Workaround
Further Problem Description: The activation of the callback is successful. What fails is when the callback destination becomes idle again and the VG224 endpoint gets notified (ring). After the VG224 endpoint goes offhook, the system should automatically connect to the Callback destination.This does not happen and VG224 endpoint gets silence.
Limitations and Restrictions
There are no known limitations or restrictions in this release.
Additional References
Use this release note with the documents and websites in this release note and the documents listed in the section Release-Specific Documents.
Release-Specific Documents
The following documents are specific to Release 12.4 and apply to Release 12.4(20)YA.
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Cisco IOS Software Documentation Set
The Cisco IOS software documentation set consists of the Cisco IOS configuration guides, Cisco IOS command references, and several other supporting documents.
Documentation Modules
Each module in the Cisco IOS documentation set consists of one or more configuration guides and one or more corresponding command references. Chapters in a configuration guide describe protocols, configuration tasks, and Cisco IOS software functionality, and contain comprehensive configuration examples. Chapters in a command reference provide complete command syntax information. Use each configuration guide with its corresponding command reference. Cisco IOS Software Documentation is available in html or pdf form.
Select your release and click the command references, configuration guides, or any other Cisco IOS documentation you need.
Notices
See the "Notices" section in About Cisco IOS Release Notes located at:
http://www.cisco.com/en/US/docs/ios/12_4/12_4x/12_4xy15/ReleaseNote.html.Use this document in conjunction with the documents listed in the "Additional References" section.
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