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Table Of Contents
Release Notes for the Cisco 10000 Series Router for Cisco IOS Release 12.0(30)SZ9
Upgrading to a New Software Release
Before You Upgrade the Cisco IOS Software
Information About Upgrading to a New Software Release
Deferring Cisco IOS Software Images
Caveats for Cisco IOS Release 12.0(30)SZ9
Open Caveats in Cisco IOS Release 12.0(30)SZ9
Resolved Caveats in Cisco IOS Release 12.0(30)SZ9
Obtaining Documentation, Obtaining Support, and Security Guidelines
Release Notes for the Cisco 10000 Series Router for Cisco IOS Release 12.0(30)SZ9
First Published: October 2008
These release notes provide information about Cisco IOS Release 12.0(30)SZ9 for the Cisco 10000 Series Router. This release is a maintenance release and has no new features.
For a list of the software caveats that apply to Cisco IOS Release 12.0(30)SZ9, see the "Caveats for Cisco IOS Release 12.0(30)SZ9" section.
Cisco IOS Release 12.0(30)SZ9 is based on the following releases:
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Cisco IOS Release 12.0(30)S5
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To review the release notes for Cisco IOS Release 12.0S, go to:
http://www.cisco.com/en/US/products/sw/iosswrel/ps1829/prod_release_notes_list.html
We recommend that you view the field notices for this release to see if your software or hardware platforms are affected. If you have an account on Cisco.com, you can find field notices at http://www.cisco.com/warp/customer/tech_tips/index/fn.html. If you do not have a Cisco.com login account, you can find field notices at http://www.cisco.com/warp/public/tech_tips/index/fn.htm.
Contents
These release notes describe the following topics:
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System Requirements
The following sections describe the system requirements for Cisco IOS Release 12.0(30)SZ9:
Supported Hardware
For Cisco IOS Release 12.0(30)SZ9, you must have the performance routing engine (PRE), Part Number ESR-PRE1, installed in the Cisco 10000 series chassis. To verify which PRE is installed in the router, use the show version command.
For information about line cards supported by Cisco 10000 series routers, see the "Supported Line Cards for the 10000 Series Routers" section in the Cross-Platform Release Notes for Cisco IOS Release 12.0S, Part 1: System Requirements at:
http://www.cisco.com/en/US/products/sw/iosswrel/ps1829/prod_release_note09186a00803c2dcb.html
Feature Support
Cisco IOS software is packaged in feature sets, depending on the platform. Each feature set contains a specific set of Cisco IOS features.
Cisco IOS Release 12.0(30)SZ9 is based on Cisco IOS Release 12.0(30)S5 and subsequent Cisco IOS Release 12.0(30)SZx maintenance releases. All features supported by Cisco IOS Release 12.0S up to and including Release 12.0(30)S5 are supported by Cisco IOS Release 12.0(30)SZ9.
Caution
Upgrading to a New Software Release
The following sections provide information about upgrading your Cisco 10000 series router to a new software release:
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Before You Upgrade the Cisco IOS Software
Before you upgrade (or downgrade) the Cisco IOS software running on the Cisco 10000 series router, save the running configuration file using the copy command. In route processor redundancy (RPR) mode, the router synchronizes only the startup configuration.
Information About Upgrading to a New Software Release
For specific information about upgrading your Cisco 10000 series router to a new software release, see the Cisco 10000 Series Router Performance Routing Engine Installation at:
http://www.cisco.com/en/US/products/hw/routers/ps133/prod_installation_guide09186a0080525aba.html
For general information about upgrading to a new software release, see the product bulletin Cisco IOS Upgrade Ordering Instructions at:
http://www.cisco.com/warp/public/cc/pd/iosw/prodlit/957_pp.htm#wp26467
For additional information about ordering Cisco IOS software, see the Products and Services Ordering website at:
http://www.cisco.com/en/US/ordering/index.shtml
New and Changed Features
Cisco IOS Release 12.0(30)SZ9 is a maintenance release and has no new hardware or software features.
For information about new features supported on the Cisco 10000 series router in other releases, see the appropriate release notes at:
http://www.cisco.com/en/US/products/hw/routers/ps133/prod_release_notes_list.html
For information about Cisco IOS Release 12.0(30)S, see the appropriate document at:
http://www.cisco.com/en/US/products/sw/iosswrel/ps1829/prod_release_notes_list.html
Important Notes
The following sections provide important information:
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Inserting a New Line Card
Unlike other Cisco routers, if you insert a new or different line card into a Cisco 10000 series chassis slot that previously had a line card installed, the line card initially reports that it is administratively up.
Deferring Cisco IOS Software Images
Cisco IOS software images are subject to deferral. We recommend that you view the deferral notices at the following URL to determine if your software release is affected:
http://www.cisco.com/kobayashi/sw-center/sw-ios-advisories.shtml
Caveats for Cisco IOS Release 12.0(30)SZ9
Caveats describe unexpected behavior in Cisco IOS software releases. This document includes caveats ranging from severity 1 to severity 3 only. Severity 1 caveats are the most serious caveats; severity 2 caveats are less serious. Severity 3 caveats are moderate caveats.
Cisco IOS Release 12.0(30)SZ9 is based on Cisco IOS Release 12.0(30)S5 and Releases 12.0(30)SZ through 12.0(30)SZ8, and contains all of the open and resolved caveats in these releases. For information on the caveats in these releases, see the following release notes documents:
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http://www.cisco.com/en/US/products/sw/iosswrel/ps1829/prod_release_note09186a00803c2609.html
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http://www.cisco.com/en/US/products/hw/routers/ps133/prod_release_notes_list.html
Note
The following sections describe open and resolved caveats for Cisco IOS Release 12.0(30)SZ9:
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Open Caveats in Cisco IOS Release 12.0(30)SZ9
This section describes caveats that are open in Cisco IOS Release 12.0(30)SZ9.
CSCdy45049
During a lab stress test, line rate traffic does not always achieve line rate when the configuration scales to more than 3000 serial interfaces. This problem occurs only when thousands of serial interfaces with PPP or HDLC encapsulation are used on the port and line rate traffic is sent through all interfaces.
Workaround: No workaround is available.
CSCeh48414
During high availability (HA) testing of the Stateful Switchover (SSO) feature, traffic is not stable before or after the switchover occurs. This behavior occurs on a Cisco 10000 series router with 200 serial network interfaces, two channelized OC-12 interfaces, and one Ethernet interface. This symptom is observed on the 200 interfaces and only when the router is running Cisco IOS Release 12.0(25)SX10.
Workaround: No workaround is available.
CSCeh73497
After a route processor (RP) switchover, the following message is sometimes observed. This behavior occurs on the Cisco 10000 series router with redundant PRE1 cards and with RPR+ mode configured.
C10KEVENTMGR-1-IRONBUS_FAULT: Barium ErrorThe message results from an internal timing issue during the RP switchover. The affected line card recovers successfully and no performance impact is observed.
Workaround: No workaround is available.
CSCei93434
In a high availability (HA) environment with multilink point to point (MLPPP) interfaces configured, after a PRE cutover a small PXF buffer leak is observed. As shown in the following sample output, for buffer pool 3 the total number of buffers (67666) does not equal the number of available buffers (67139). This mismatch occurs when the router is running Cisco IOS Release 12.0(28)S4.
pool size # buffer available allocate failures-----------------------------------------------------------0 9216 100 100 01 4672 500 500 02 1600 30000 30000 03 640 67666 67139 04 256 98165 98165 05 64 131000 131000 0Workaround: No workaround is available.
CSCej89322
Spurious memory access is observed at fib_notify_interface_state_change after the secondary switchover in the primary router. This symptom occurs on the router when running Cisco IOS Release 12.0(30)S4 and Release 12.0(28)S5.
Workaround: No workaround is available.
CSCsg51693
A random ping failure occurs between two CE routers and is randomly observed across different virtual private networks (VPNs) for more than 300 VPNs. The number of ping failures across the VPNs varies randomly. The number of VPNs is set to 500 and the number of VPN routes is set to 136. Ping operations between two PE routers are successful. The ping failure is not observed when the number of VPN routes is set to 0 and the number of VPNs is set to 999. This symptom occurs when the router is running Cisco IOS Release 12.0(30)SZ and Release 12.0(30)SZ2.
Workaround: No workaround is available.
Resolved Caveats in Cisco IOS Release 12.0(30)SZ9
This section describes caveats that were fixed in Cisco IOS Release 12.0(30)SZ9.
CSCin78176
During per-packet load balancing, the Cisco 10000 series router stopped working. This failure occurred when multiple tests were conducted without performing cleaning on a Cisco 10000 series router that runs an interim release of Cisco IOS Release 12.0(30)S. The problem was platform-independent and has been fixed.
Note
1. Erase all configurations from the router.
2. Load the boot image, load the minimum configuration, and save the configuration.
3. Reload the router with the correct image and load the proper configuration.CSCsm35870
After online insertion and removal (OIR) or resetting of a line card, E1 controllers continuously flapped with RMAI alarms. This behavior persisted even after putting the controller on an internal loop and internal clock. This problem has been fixed.
CSCsq30252
After an internal loop s was added to a Cisco 10000 series router with internal clocking, an E1 controller flapped due to RMAI alarms. This behavior was observed after upgrading a line card on a Cisco 10000 series router running Cisco IOS Release 12.2(31)SB. This problem has been fixed.
Obtaining Documentation, Obtaining Support, and Security Guidelines
For information on obtaining documentation, obtaining support, providing documentation feedback, security guidelines, and also recommended aliases and general Cisco documents, see the monthly What's New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation at:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
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