Release Notes for Cisco Secure Router 500 Series with Cisco IOS Release 12.4(20)YA

Table Of Contents

Release Notes for Cisco Secure Router 500 Series with Cisco IOS Release 12.4(20)YA

Contents

System Requirements

Memory Requirements

Hardware Supported

Determining the Software Version

Upgrading to a New Software Release

Feature Set Tables

New and Changed Information

New Hardware Features in Cisco IOS Release 12.4(20)YA3

New Software Features in Cisco IOS Release 12.4(20)YA3

New Features in Release 12.4T

Caveats

Open Caveats - Release 12.4(20)YA3

Resolved Caveats - Release 12.4(20)YA3

Additional References

Release-Specific Documents

Platform-Specific Documents

Cisco IOS Software Documentation Set

Documentation Modules

Notices

Release Notes for Cisco Secure Router 500 Series with Cisco IOS Release 12.4(20)YA

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First Released: April 7, 2009

Last Revised: April 6, 2009

Cisco IOS Release 12.4(20)YA3

OL-19220-01 First Release

These release notes describe new features and significant software components for the Cisco Secure Router 500 series that support the Cisco IOS Release 12.4(20)YA releases. 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. See also Caveats for Cisco IOS Release 12.4(15)T. The online caveats document is updated for every maintenance release.

Contents

•System Requirements

•New and Changed Information

•Caveats

•Additional References

•Notices

System Requirements

This section describes the system requirements for Release 12.4(20)YA and includes the following sections:

•Memory Requirements

•Hardware Supported

•Determining the Software Version

•Upgrading to a New Software Release

•Feature Set Tables

Memory Requirements

Table 1 describes the memory requirements for the Cisco IOS feature sets supported by Cisco IOS Release 12.4(20)YA on the Cisco Secure Router 500 series.

Table 1 Required Memory for the Cisco Secure Router 500 series with Cisco IOS Release 12.4(20)YA 

Platform	Image Name	Feature Set	Image	Flash Memory (MB)	DRAM (MB)
Cisco  SR520	Cisco SR520 Advanced IP Services	Advanced IP Services	sr520-advipservicesk9-mz	32	128

Hardware Supported

Cisco IOS Release 12.4(20)YA supports the following Cisco Secure Router 500 series routers:

•Cisco SR520 Ethernet-to-Ethernet Routers

–SR520-FE-K9: Cisco Secure Router 520 Ethernet-to-Ethernet

–SR520W-FE-K9: Cisco Secure Router 520 Ethernet-to-Ethernet Wireless

•Cisco SR520 ADSL-over-POTS Routers

–SR520-ADSL-K9: Cisco Secure Router 520 ADSL-over-POTS

–SR520W-ADSL-K9: Cisco Secure Router 520 ADSL-over-POTS Wireless

•Cisco SR520 ADSL-over-ISDN Routers

–SR520-ADSLI-K9: Cisco Secure Router 520 ADSL-over-ISDN

–SR520W-ADSLI-K9: Cisco Secure Router 520 ADSL-over-ISDN Wireless

The wireless router versions support 802.11 b/g WiFi with single antenna.

For descriptions of existing hardware features and supported modules, see the hardware installation guides, configuration and command reference guides, and additional documents specific to the Cisco Secure Router 500 series routers, which are available at:

http://www.cisco.com/en/US/products/ps9305/tsd_products_support_series_home.html

Determining the Software Version

To determine the version of Cisco IOS software currently running on your Cisco Secure Router 500 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

This section contains the following information:

•New Hardware Features in Cisco IOS Release 12.4(20)YA3

•New Software Features in Cisco IOS Release 12.4(20)YA3

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

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:

•Open Caveats - Release 12.4(20)YA3

•Resolved Caveats - Release 12.4(20)YA3

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   The error message occurs on a router running the c3845-adventerprisek9_ivs_li-mz.124-15.T5 image.

Workaround   None.

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   Multi node cluster and VG224 endpoint is registered with node other then the first node in the cluster.

Workaround   Have VG224 endpoints registered with first node.

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.

Additional References

Use this release note with the documents and websites in this release note and the documents listed in the following sections:

•Release-Specific Documents

•Platform-Specific Documents

Release-Specific Documents

The following documents are specific to Release 12.4 and apply to Release 12.4(20)YA.

•Cross-Platform Release Notes for Cisco IOS Release 12.4T

•Cisco IOS Software Releases 12.4 Special and Early Deployments

•Caveats for Cisco IOS Release 12.4(20)T

Platform-Specific Documents

Hardware installation guides, configuration and command reference guides, and additional documents specific to the Cisco Secure Router 500 Series routers are available at:

http://www.cisco.com/en/US/products/ps9305/tsd_products_support_series_home.html

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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