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Table Of Contents
Release Notes for Cisco IOS XR Software Release 3.4.2
Determining the Software Version
Cisco XR 12000 Series Router Requirements
Determining the Software Version
Quality of Service Units of Measure Changes
Cisco XR 12000 Series Router-specific Caveats
Resolved Cisco IOS XR Software PSIRT-Related Caveats
Upgrading Cisco IOS XR Software
Obtaining Documentation, Obtaining Support, and Security Guidelines
Release Notes for Cisco IOS XR Software Release 3.4.2
March 19, 2013
Cisco IOS XR Software Release 3.4.2
Text Part Number OL-13467-02
Note
For important information about Cisco IOS XR Software Release 3.4.2, see the "Important Notes" section.
Note
These release notes describe the features provided in Cisco IOS XR Software Release 3.4.2 and are updated as needed.
For a list of software caveats that apply to Cisco IOS XR Software Release 3.4.2, see the "Caveats" section. The caveats are updated for every release and are located on the World Wide Web at www.cisco.com.
We recommend that you view the field notices for this release to see if your software or hardware platforms are affected, at http://www.cisco.com/public/support/tac/fn_index.html.
Contents
These release notes contain the following sections:
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Introduction
Cisco IOS XR software is a distributed operating system designed for continuous system operation combined with service flexibility and high performance.
Cisco IOS XR software provides the following features and benefits:
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System Requirements
The Cisco IOS XR Software Release 3.4.2 is supported on the following platforms:
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Cisco CRS-1 Requirements
This section describes the system requirements for Cisco IOS XR Software Release 3.4.2 supported on Cisco CRS-1 routers and includes the following information:
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Feature Set Table
Cisco IOS XR software is packaged in feature sets (also called software images). Each feature set contains a specific set of Cisco IOS XR Software Release 3.4.2 features. Table 1 and Table 2 list the Cisco IOS XR software feature set matrix and associated filenames available for the Cisco IOS XR Software Release 3.4.2 supported on the Cisco CRS-1.
Table 1 Cisco CRS-1 Supported Feature Sets (Cisco IOS XR Software Release 3.4.2 PIE Files)
Cisco IOS XR IP Unicast Routing Core Bundle
comp-hfr-mini.pie-3.4.2
Contains the required core packages, including OS, Admin, Base, Forwarding, Modular Services Card, Routing, SNMP Agent, and Alarm Correlation.
Cisco IOS XR IP Unicast Routing Core Bundle
comp-hfr-mini.vm-3.4.2
Contains the required core packages including, OS, Admin, Base, Forwarding, and Routing SNMP Agent, and Alarm Correlation.
Cisco IOS XR Manageability Package
hfr-mgbl-p.pie-3.4.2
CORBA agent, XML Parser, and HTTP server packages.
Cisco IOS XR MPLS Package
hfr-mpls-p.pie-3.4.2
MPLS-TE, LDP, MPLS Forwarding, MPLS OAM, LMP, OUNI, RSVP, Layer 2 VPN, and Layer 3 VPN.
Cisco IOS XR Multicast Package
hfr-mcast-p.pie-3.4.2
Multicast Routing Protocols (PIM, MSDP, IGMP, Auto-RP), Tools (SAP, MTrace), and Infrastructure (MRIB, MURIB, MFWD), and BIDIR-PIM.
Cisco IOS XR Security Package
hfr-k9sec-p.pie-3.4.2
Support for Encryption, Decryption, IPSec, SSH, SSL, and PKI.
Cisco IOS XR Documentation Package
hfr-doc.pie-3.4.2
Manual pages for Cisco IOS XR CLI commands.
Cisco IOS XR FPD Package
hfr-fpd.pie-3.4.2
Firmware for ROM Monitor and Shared Port Adapters (SPA) supported in Cisco IOS XR software.
Cisco IOS XR Diagnostic Package
hfr-diags-p.pie-3.4.2
Diagnostic utilities for Cisco IOS XR routers.
1 Packages are installed individually.
Memory Requirements
Caution
The minimum memory requirements for Cisco CRS-1 routers running Cisco IOS XR software Release 3.4.2 are:
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Supported Hardware
Cisco IOS XR Software Release 3.4.2 supports Cisco CRS-1 routers. All hardware features are supported in Cisco IOS XR software, subject to the memory requirements specified in the "Memory Requirements" section.
For the hardware components supported on the platform, minimum software versions required, and the compatibility matrix, see the Software/Firmware Compatibility Matrix at: http://www.cisco.com/web/Cisco_IOS_XR_Software
Software Compatibility
Cisco IOS XR Software Release 3.4.2 is compatible with the Cisco CRS-1 systems:
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Determining the Software Version
To determine the version of Cisco IOS XR software running on your router, log in to the router and enter the show version command:
Step 1
Step 2
RP/0/RP0/CPU0:router# show versionThe following version information is displayed:
Cisco IOS XR Software, Version 3.4.2[00]Copyright (c) 2007 by cisco Systems, Inc.ROM: System Bootstrap, Version 1.45(20070510:194146) [CRS-1 ROMMON],Router uptime is 1 hour, 11 minutesSystem image file is "disk0:hfr-os-mbi-3.4.2/mbihfr-rp.vm"cisco CRS-8/S (7457) processor with 4194304K bytes of memory.7457 processor at 1197Mhz, Revision 1.24 DWDM controller(s)8 GigabitEthernet/IEEE 802.3 interface(s)2 Ethernet/IEEE 802.3 interface(s)17 Packet over SONET/SDH network interface(s)17 SONET/SDH Port controller(s)12 TenGigabitEthernet/IEEE 802.3 interface(s)2043k bytes of non-volatile configuration memory.38079M bytes of hard disk.1000592k bytes of ATA PCMCIA card at disk 0 (Sector size 512 bytes).Configuration register on node 0/RP0/CPU0 is 0x102Boot device on node 0/RP0/CPU0 is disk0:Package active on node 0/RP0/CPU0:hfr-fpd, V 3.4.2[00], Cisco Systems, at disk0:hfr-fpd-3.4.2Built on Wed Jun 27 21:58:29 PDT 2007By edde-bld1 in /auto/srcarchive2/production/3.4.2/hfr/workspace for c2.95.3-p8hfr-doc, V 3.4.2[00], Cisco Systems, at disk0:hfr-doc-3.4.2Built on Wed Jun 27 21:58:51 PDT 2007By edde-bld1 in /auto/srcarchive2/production/3.4.2/hfr/workspace for c2.95.3-p8hfr-diags, V 3.4.2[00], Cisco Systems, at disk0:hfr-diags-3.4.2Built on Wed Jun 27 21:57:59 PDT 2007By edde-bld1 in /auto/srcarchive2/production/3.4.2/hfr/workspace for c2.95.3-p8hfr-mgbl, V 3.4.2[00], Cisco Systems, at disk0:hfr-mgbl-3.4.2Built on Wed Jun 27 21:10:18 PDT 2007By edde-bld1 in /auto/srcarchive2/production/3.4.2/hfr/workspace for c2.95.3-p8hfr-mcast, V 3.4.2[00], Cisco Systems, at disk0:hfr-mcast-3.4.2Built on Wed Jun 27 21:21:23 PDT 2007By edde-bld1 in /auto/srcarchive2/production/3.4.2/hfr/workspace for c2.95.3-p8hfr-mpls, V 3.4.2[00], Cisco Systems, at disk0:hfr-mpls-3.4.2Built on Wed Jun 27 21:13:32 PDT 2007By edde-bld1 in /auto/srcarchive2/production/3.4.2/hfr/workspace for c2.95.3-p8hfr-rout, V 3.4.2[00], Cisco Systems, at disk0:hfr-rout-3.4.2Built on Wed Jun 27 21:21:56 PDT 2007By edde-bld1 in /auto/srcarchive2/production/3.4.2/hfr/workspace for c2.95.3-p8hfr-k9sec, V 3.4.2[00], Cisco Systems, at disk0:hfr-k9sec-3.4.2Built on Wed Jun 27 21:50:37 PDT 2007By edde-bld1 in /auto/srcarchive2/production/3.4.2/hfr/workspace for c2.95.3-p8hfr-lc, V 3.4.2[00], Cisco Systems, at disk0:hfr-lc-3.4.2Built on Wed Jun 27 21:22:14 PDT 2007By edde-bld1 in /auto/srcarchive2/production/3.4.2/hfr/workspace for c2.95.3-p8hfr-fwdg, V 3.4.2[00], Cisco Systems, at disk0:hfr-fwdg-3.4.2Built on Wed Jun 27 21:21:54 PDT 2007By edde-bld1 in /auto/srcarchive2/production/3.4.2/hfr/workspace for c2.95.3-p8hfr-admin, V 3.4.2[00], Cisco Systems, at disk0:hfr-admin-3.4.2Built on Wed Jun 27 21:22:14 PDT 2007By edde-bld1 in /auto/srcarchive2/production/3.4.2/hfr/workspace for c2.95.3-p8hfr-base, V 3.4.2[00], Cisco Systems, at disk0:hfr-base-3.4.2Built on Wed Jun 27 21:23:50 PDT 2007By edde-bld1 in /auto/srcarchive2/production/3.4.2/hfr/workspace for c2.95.3-p8hfr-os-mbi, V 3.4.2[00], Cisco Systems, at disk0:hfr-os-mbi-3.4.2Built on Wed Jun 27 21:22:46 PDT 2007By edde-bld1 in /auto/srcarchive2/production/3.4.2/hfr/workspace for c2.95.3-p8
Supported Firmware Code
The following firmware code is supported by the Cisco CRS-1 router:
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Cisco XR 12000 Series Router Requirements
This section describes the system requirements for Cisco IOS XR Software Release 3.4.2 supported on the Cisco XR 12000 Series Router and includes the following information:
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Feature Set Table
The Cisco IOS XR software is packaged in feature sets (also called software images). Each feature set contains a specific set of Cisco IOS XR Software Release 3.4.2 features. Table 3 and Table 4 list the Cisco IOS XR software feature set matrix and associated filenames available for Cisco IOS XR Software Release 3.4.2 supported on the Cisco XR 12000 Series Router.
Table 3 Cisco XR 12000 Series Router Supported Feature Sets (Cisco IOS XR Software
Release 3.4.2 PIE Files)Cisco IOS XR IP Unicast Routing Core Bundle
c12k-mini.pie-3.4.2
Contains the required core packages, including OS, Admin, Base, Line Cards, Forwarding, Routing, SNMP Agent, and Alarm Correlation.
Cisco IOS XR IP Unicast Routing Core Bundle
c12k-mini.vm-3.4.2
Contains the required core packages including, OS, Admin, Base, Forwarding, and Routing SNMP Agent, and Alarm Correlation.
Cisco IOS XR Manageability Package
c12k-mgbl.pie-3.4.2
CORBA agent, XML Parser, and HTTP server packages.
Cisco IOS XR MPLS Package
c12k-mpls.pie-3.4.2
MPLS-TE, LDP, MPLS Forwarding, MPLS OAM, LMP, OUNI, and RSVP.
Cisco IOS XR Multicast Package
c12k-mcast.pie-3.4.2
Multicast Routing Protocols (PIM, MSDP, IGMP, Auto-RP), Tools (SAP, MTrace), and Infrastructure (MRIB, MURIB, MFWD).
Cisco IOS XR Security Package
c12k-k9sec.pie-3.4.2
Support for Encryption, Decryption, IPSec, SSH, SSL, and PKI.
Cisco IOS XR Standby RP Boot Image
mbiprp-rp.vm-3.4.2
Support for booting the Standby RP on a Cisco XR 12000 Series Router.
Cisco IOS XR Session Border Controller Package
c12k-sbc.pie-3.4.2
Session Border Controller Package for a Cisco XR 12000 Series Router.
Cisco IOS XR Service IPSec Controller Package
c12k-ipsec-service.pie-3.4.2
Support for service-ipsec and service-gre interfaces in Cisco IOS XR.
Cisco IOS XR Documentation Package
c12k-doc.pie-3.4.2
Manual pages for Cisco IOS XR CLI commands.
Cisco IOS XR FPD Package
c12k-fpd.pie-3.4.2
Firmware for Cisco Shared Port Adapters (SPA) supported in Cisco IOS XR software.
Cisco IOS XR Diagnostic Package
c12k-diags.pie-3.4.2
Diagnostic utilities for Cisco IOS XR routers.
1 Packages are installed individually.
Memory Requirements
Caution
The minimum memory requirements for Cisco XR 12000 Series Routers running Cisco IOS XR Software Release 3.4.2 are:
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Supported Hardware
Cisco IOS XR Software Release 3.4.2 supports the Cisco XR 12000 Series Router. All hardware features are supported on Cisco IOS XR software, subject to the memory requirements specified in the "Memory Requirements" section.
Table 5 lists the hardware components supported on the Cisco XR 12000 Series Router and the minimum software versions required. See the "Determining the Software Version" section.
Software Compatibility
Cisco IOS XR Software Release 3.4.2 is compatible with the following Cisco IOS XR Series Router systems:
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For the existing installed base, the following chassis are supported:
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Determining the Software Version
To determine the version of Cisco IOS XR software running on your router, log in to the router and enter the show version command:
Step 1
Step 2
RP/0/0/CPU0:router# show versionThe following version information is displayed:
Cisco IOS XR Software, Version 3.4.2[00]Copyright (c) 2007 by cisco Systems, Inc.ROM: System Bootstrap, Version 12.0(20041108:104740) [ashp-cisp-rommon 1.16dev(0.1)] DEVELOPMENT SOFTWARECopyrigh, Inc.ds-gsr-1 uptime is 1 hour, 27 minutesSystem image file is "disk0:c12k-os-mbi-3.4.2/mbiprp-rp.vm"cisco 12416/PRP (7457) processor with 2097152K bytes of memory.7457 processor at 1265Mhz, Revision 1.12 Cisco 12000 Series SPA Interface Processor-601/501/4011 Cisco 12000 Series - Multi-Service Blade Controller3 Cisco 12000 4 Port Gigabit Ethernet Controllers (12 GigabitEthernet)2 Cisco 12000 Series Performance Route Processors17 GigabitEthernet/IEEE 802.3 interface(s)3 Ethernet/IEEE 802.3 interface(s)1 Controller for the management of multilink interfacess28 Multilink network interface(s)11 PLIM QoS controller(s)2 Packet over SONET/SDH network interface(s)56 Serial network interface(s)2 SONET/SDH Port controller(s)56 T1 Port controller(s)4 T3 Port controller(s)2042k bytes of non-volatile configuration memory.977M bytes of compact flash card.38145M bytes of hard disk.1000544k bytes of ATA PCMCIA card at disk 0 (Sector size 512 bytes).65536k bytes of Flash internal SIMM (Sector size 256k).Boot device on node 0/0/CPU0 is mem:Package active on node 0/0/CPU0:c12k-sbc, V 3.4.2[00], Cisco Systems, at disk0:c12k-sbc-3.4.2Built on Thu Jun 28 03:40:37 PST 2007By edde-bld1 in /auto/srcarchive2/production/3.4.2/c12k/workspace for c2.95.3-p8c12k-ipsec-service, V 3.4.2[00], Cisco Systems, at disk0:c12k-ipsec-service-3.4.2Built on Thu Jun 28 00:20:12 PST 2007By edde-bld1 in /auto/srcarchive2/production/3.4.2/c12k/workspace for c2.95.3-p8c12k-diags, V 3.4.2[00], Cisco Systems, at disk0:c12k-diags-3.4.2Built on Thu Jun 28 01:43:36 PST 2007By edde-bld1 in /auto/srcarchive2/production/3.4.2/c12k/workspace for c2.95.3-p8c12k-mcast, V 3.4.2[00], Cisco Systems, at disk0:c12k-mcast-3.4.2Built on Wed Jun 27 23:51:14 PST 2007By edde-bld1 in /auto/srcarchive2/production/3.4.2/c12k/workspace for c2.95.3-p8c12k-mpls, V 3.4.2[00], Cisco Systems, at disk0:c12k-mpls-3.4.2Built on Wed Jun 27 23:50:47 PST 2007By edde-bld1 in /auto/srcarchive2/production/3.4.2/c12k/workspace for c2.95.3-p8c12k-k9sec, V 3.4.2[00], Cisco Systems, at disk0:c12k-k9sec-3.4.2Built on Wed Jun 27 23:52:08 PST 2007By edde-bld1 in /auto/srcarchive2/production/3.4.2/c12k/workspace for c2.95.3-p8c12k-lc, V 3.4.2[00], Cisco Systems, at disk0:c12k-lc-3.4.2Built on Wed Jun 27 22:15:19 PST 2007By edde-bld1 in /auto/srcarchive2/production/3.4.2/c12k/workspace for c2.95.3-p8c12k-fwdg, V 3.4.2[00], Cisco Systems, at disk0:c12k-fwdg-3.4.2Built on Wed Jun 27 22:14:10 PST 2007By edde-bld1 in /auto/srcarchive2/production/3.4.2/c12k/workspace for c2.95.3-p8c12k-admin, V 3.4.2[00], Cisco Systems, at disk0:c12k-admin-3.4.2Built on Wed Jun 27 22:13:13 PST 2007By edde-bld1 in /auto/srcarchive2/production/3.4.2/c12k/workspace for c2.95.3-p8...
Supported Firmware Code
The following minimum firmware code is supported by the Cisco XR 12000 Series Router:
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New and Changed Information
No new software or hardware features are introduced in Cisco IOS XR Software Release 3.4.2.
Note
See the following documents for detailed information on the shared port adapters (SPAs) and SPA interface processors (SIPs):
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Important Notes
In certain countries, use of these products may be prohibited and subject to laws, regulations, or licenses, including requirements applicable to the use of the products under telecommunications and other laws and regulations; customers must comply with all such applicable laws in the countries in which they intend to use the products.
When upgrading a Cisco XR 12000 Series Router from Cisco IOS to Cisco IOS XR software, follow the upgrade instructions provided to minimize traffic impact. For detailed instructions, see the Upgrading from Cisco IOS to Cisco IOS XR Software on the Cisco 12000 Series Router document for procedures.
Follow the instructions provided by Cisco for all card removal and replacement (fabric cards, line cards, fan controller and RP, and so on) to avoid impact to traffic. See the Cisco IOS XR Getting Started Guide for procedures.
If you intend to test beyond the combined maximum configuration tested and published by Cisco, contact your Cisco representative to discuss how to engineer a large-scale configuration maximum for your testing.
Cisco SIP-600 line cards (for the Cisco XR 12000 Series Router) draw more power than previous line cards. Depending on the exact configuration of power entry modules (PEMs) and other cards in the chassis, there may not be enough power available when inserting a new card or removing a PEM. Before you insert a new card or remove a PEM, run the following command in admin mode:
RP/0/0/CPU0:router# adminRP/0/0/CPU0:router# show environment power-supply table48V CurrentR/S/I Module (V) (A)0/24/* PEM1 54 4PEM2 53 40/25/* PEM1 54 4PEM2 53 4Total Power Supplies: 3200WRedundant Power Supplies: 1600WWorst Case Power Used: 621WCurrent Power Used: 428WCurrent Redundant Power Available: 1172WCurrent Total Power Available: 2772WWorst Case Redundant Power Available: 979WWorst Case Total Power Available: 2579WPID Description Watts--- ----------- -----GRP-B Route Processor 38PRP-1 Cisco 12000 Series Performance Route Processor 60LC-4OC-3-POS-SM 4 Port Packet Over SONET OC-3c/STM-1 804OC3X/POS-MM-MJ-B 4 port ISE OC3 90...If you plan to insert a new card, locate the entry for the card to be inserted and note the power consumed by it. If this power is less than the figure given in Worst Case Redundant Power Available (the figure is displayed in the show environment power-supply table command output), the card can be safely inserted. As long as the Worst Case Redundant Power Available is not zero, a PEM can be powered off for replacement without impact.
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Caveats
Caveats describe unexpected behavior in Cisco IOS XR software releases. Severity 1 caveats are the most serious caveats; severity 2 caveats are less serious.
Open Caveats—Release 3.4.2
This section lists the caveats for Cisco IOS XR Software Release 3.4.2. The caveats are organized as follows:
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Quality of Service Units of Measure Changes
Because the default units of measure may no longer be the same, care must be taken when taking a configuration earlier than Cisco IOS XR Software Release 3.3.0 and applying it to Cisco IOS XR Software Release 3.3.0 or later. Table 6 lists the changes to Quality of Service (QoS) units of measure.
Note
Keywords cannot be inserted into the running configuration on a router running Cisco IOS XR Release 3.2.x in advance of the upgrade. An option is to edit the configuration offline, and add the necessary keywords.
Note
To remove a service policy from an input or output interface, use the no form of the service-policy command in interface configuration mode, as shown in the following syntax:
no service-policy {input | output}When the policy is removed from any interfaces, the edited policy is applied. See the following Cisco IOS XR command reference sections:
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Platform-Independent Caveats
The following caveats apply to Cisco CRS-1 and Cisco XR 12000 Series Routers:
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Basic Description:
IA tunnel does NOT go down and come up on topo change in non-head area.
Symptom:
When IOS XR Release 3.4 MPLS Traffic Engineering node is a non-head area node and there is a topology change triggered either due to IGP link add/removal or any other topology change in the IGP (say) Level 1 to Level 2 for the links on that node. The inter-area tunnels originating from the Head and going via that link will NOT flap as a result of this topology change.
Conditions:
This behavior is seen in IOS XR Release 3.4 in a non-head area node and inter-area TE tunnel is being setup with loose hop in the path ERO.
Additional Notes:
Path verification and tunnel reoptimization indication are not done by the midpt ABR node. This is similar to the IOS behavior today. This feature will be added in a future release.
Workaround:
None.
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Basic Description:
L2VPN: Control word cant be set if PW is established with cbit=0
Symptom:
Router not sending Control Word even when Controlk word is enabled.
Conditions:
If a PW is established with cbit=0, and later using config we enabled control word or if neighbor sends a label mapping with control word cbit=1, IOX will still send cbit=0.
Workaround:
The workaround is to delete and reconfigure the PW on both the PE's
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Basic Description:
L2VPN: Support destination with Rtg ID different than LDP rtr Id
Symptom:
Can't establish PW to a non LDP router ID address
Conditions:
PW can be established on to the LDP router ID. Currently IOX does not support PW to non LDP router ID's
Workaround:
None
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Basic Description:
`show mpls lsd forwarding' displays invalid format_tbl:136
Symptom:
`show mpls lsd forwarding' displays invalid format_tbl:136
Conditions:
Under normal scenarios.
Workaround:
There is no workaround for this as of now.
Cisco CRS-1-specific Caveats
The following caveats are specific to the Cisco CRS-1 platform:
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Basic Description:
netio process restarts when trying to restore config from disk.
Symptom:
An unexpected Netio process termination may occur when trying to restore configuration from disk or when changing the encapsulation of an interface from ppp to hdlc and vice versa.
Conditions:
Condition1: If the router has POS or serial interfaces and the configuration is cleared using following commands:
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And then restored back from disk, the netio process can terminate.
Condition 2: If the encapsulation of serial interface is changed repeatedly from ppp to hdlc and viceversa, and if the packets are being sent out of that interface at the same time, the netio process can terminate
Workaround:
Workaround for Condition 1: When loading the configuration from disk, make sure the POS and serial interfaces are in a shut-down state. Once the configuration is loaded, the interfaces can be enabled again.
Workaround for Condition 2: If there is a need to change the encaps of a serial or POS interface, shut the interface before changing the encapsulation. The interface can be enabled after the configuration change has been made.
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Basic Description:
Line protocol state for SONET controller should be admin-down after LC reload.
Symptom:
When shutting down the SONET controller, Intf/LineP state shown in show controllers sonet should be admin-down/admin-down. However, LineP goes to the down state after LC reload.
Conditions:
After the LC reload.
Workaround:
No shutdown the controller once then shutdown it again.
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Basic Description:
Unable to upgrade FPD for oc3/12 SPA.
Symptom:
FPGA upgrade may fail on OC3/12 SPA in a named SDR.
Conditions:
Normal operation.
Workaround:
Move the card in owner SDR, upgrade the FPGA and move it back to the named SDR.
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Basic Description:
syslogd process crashed.
Symptom:
syslogd process crashed.
Conditions:
The logging level was debug and cctl debugs were enabled.
Workaround:
The syslogd process was automatically restarted.
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Basic Description:
After FailOver instdir process crashed twice on RP.
Symptom:
After FailOver instdir process crashed twice on RP.
Conditions:
Active RP reload.
Workaround:
None. The instdir process was restarted after the two crashed.
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Basic Description:
Garbled character of authentication string on "show vrrp detail".
Symptom:
The last portion of the string value for "show vrrp detal" command is garbled.
Conditions:
When the eight alphanumeric characters are used by "authentication string" for VRRP.
Workaround:
None. The string value of "show vrrp detail" is normal when the alphanumeric characters from one to seven are used for authentication.
Cisco XR 12000 Series Router-specific Caveats
The following caveats are specific to the Cisco XR 12000 Series Router platform:
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Basic Description:
CEF is inconsistent on active and standby RP.
Symptom:
After "hw-module reload loc all" on dual rp system when mgmt subnet has multiple interfaces mgmt-1 on actv rp and mgmt-2 on sby rp, it is possible that CEF entry for a nbr hanging of this connected subnet can be criss-crossed on act/sby rp. As result of this when pkt to such nbr is to be sent out of rtr, it can loop between Act/Sby rp and result in high cpu util on act/sby rp (fabric_driver_rp).
Conditions:
This happens only when we execute "hw-module reload loc all" on a router which has dual RP card.
Recovery:
shut/unshut of mgmt interface of the standby rp.
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Basic Description:
ipv4_io_ea times out during commit replace due to FIB
Symptom:
commit replace from an empty config to a scaled config like FR with 4k DLCIs causes ipv4_io_ea timeout.
Conditions:
The user has to have an empty or minimal config and swtch to the scaled config like FR with 4k DLCIs.
Workaround:
None.
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Basic Description:
acl not getting attached to the interface
Symptom:
When we do a SPA OIR follwoed by a redundancy switchover and if the SPA interfaces are going to have ACL configs attached to its interfaces we will hit with this issue.
Conditions:
This only happens if the following 2 conditions are met
1.If you have acl configs attached to the interfaces of a SPA.
2.and if you a do SPA OIR immediately followed by a redundancy switchover.Recovery:
Reapply the acl configs into the interfaces after the redundancy switchover.
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Basic Description:
qos service policies not getting attached to interface after SPA OIR
Symptom:
When we do a SPA OIR follwoed by a redundancy switchover and if the SPA interfaces are going to have qos service policy configs attached to its interfaces we will hit with this issue.
Conditions:
This only happens if the following 2 conditions are met
1.If you have qos service policy configs attached to the interfaces of a SPA.
2.and if you a do SPA OIR immediately followed by a redundancy switchover.Recovery:
Reapply the qos service policy configs into the interfaces after the redundancy switchover.
Resolved Cisco IOS XR Software PSIRT-Related Caveats
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Basic Description:
BGP flaps due to unknown attribute
Symptom:
Cisco IOS XR Software contains a vulnerability in the Border Gateway Protocol (BGP) feature. The vulnerability manifests itself when a BGP peer announces a prefix with a specific, valid but unrecognized transitive attribute. On receipt of this prefix, the Cisco IOS XR device will corrupt the attribute before sending it to the neighboring devices. Neighboring devices that receive this corrupted update may reset the BGP peering session.
Conditions:
Affected devices running Cisco IOS XR Software corrupt the unrecognized attribute before sending to neighboring devices, but neighboring devices may be running operating systems other than Cisco IOS XR Software and may still reset the BGP peering session after receiving the corrupted update. This is per standards defining the operation of BGP.
Workaround:
No workaround. Cisco developed a fix that addresses this vulnerability and will be releasing free software maintenance upgrades (SMUs) progressively starting 28 August 2010.
A Security Advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20100827-bgp.shtml
Upgrading Cisco IOS XR Software
The following URL links to online information that describes how to upgrade Cisco IOS XR software on Cisco CRS-1 and Cisco XR 12000 Series Router systems from earlier releases to Release 3.4.2 at http://www.cisco.com/web/Cisco_IOS_XR_Software/index.html
Note
Troubleshooting
See the Cisco IOS XR Getting Started Guide for information on troubleshooting the Cisco IOS XR software.
Related Documentation
The following sections describe the documentation available for the Cisco CRS-1 and Cisco XR 12000 Series Router. These documents consist of hardware and software installation guides, Cisco IOS XR software configuration and command references, feature modules, and other documents.
Documentation is available as electronic documents, which are available online on Cisco.com.
Use these release notes with these documents:
Hardware Documents
You can find the most current hardware documentation at:
Cisco CRS-1 Routers:
http://www.cisco.com/en/US/products/ps5763/tsd_products_support_series_home.html
Cisco XR 12000 Series Routers:
http://www.cisco.com/en/US/products/ps6342/tsd_products_support_series_home.html
Software Documents
The Cisco IOS XR software documentation set consists of the Cisco IOS XR software configuration guides and command references, a getting started guide, and other supporting documents. See the About Cisco IOS XR Software Documentation for Release 3.4.0 for a list of Cisco IOS XR software documentation for Release 3.4.2.
You can find the most current software documentation at:
http://www.cisco.com/en/US/products/ps5845/tsd_products_support_series_home.html
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:
lhttp://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.htm
This document is to be used in conjunction with the documents listed in the "Related Documentation" section.
Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of Cisco trademarks, go to this URL: www.cisco.com/go/trademarks. Third-party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (1110R)
Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and coincidental.
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