Table Of Contents
Release Notes for Cisco IOS XR Software Release 3.2.6
Feature Set Table for the Cisco CRS-1 Router
Memory Requirements for the Cisco CRS-1 Router
Hardware Supported for the Cisco CRS-1 Router
Software Compatibility for the Cisco CRS-1 Router
Determining the Software Version for the Cisco CRS-1 Router
Other Firmware Code for the Cisco CRS-1 Router
Feature Set Table for the Cisco XR 12000 Series Router
Memory Requirements for the Cisco XR 12000 Series Router
Hardware Supported for the Cisco XR 12000 Series Router
Software Compatibility for the Cisco XR 12000 Series Router
Other Firmware Code for the Cisco XR 12000 Series Router
New and Changed Information for Release 3.2.6
New Software Features in Cisco IOS XR Software Release 3.2.6
Changed Software Features in Cisco IOS XR Software Release 3.2.6
Upgrade Instructions for Release 3.2.6
Commands and Tasks for Upgrading Software
Upgrade Instructions for the Cisco CRS-1 Router
Steps for the Required SMUs for Upgrading a Cisco CRS-1 Router
Special Downgrade Instructions
Upgrade Instructions for Cisco XR 12000 Series Routers
Special Downgrade Instructions
Cisco Product Security Overview
Reporting Security Problems in Cisco Products
Obtaining Technical Assistance
Cisco Technical Support & Documentation Website
Definitions of Service Request Severity
Obtaining Additional Publications and Information
Release Notes for Cisco IOS XR Software Release 3.2.6
August 21, 2006
Cisco IOS XR Software Release 3.2.6
Text Part Number OL-11380-02
Note
See the "Important Notes" section for important information on Cisco IOS XR Software Release 3.2.6.
Note
These release notes describe the features provided in Cisco IOS XR Software Release 3.2.6 and are updated as needed.
For a list of software caveats that apply to Cisco IOS XR Software Release 3.2.6, 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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See the "New and Changed Information for Release 3.2.6" section for a detailed list of new features by platform for Cisco IOS XR Software Release 3.2.6.
System Requirements
The Cisco IOS XR Software Release 3.2.6 is supported on the following platforms:
Cisco CRS-1 Router
This section describes the system requirements for Cisco IOS XR software Release 3.2.6 supported on Cisco CRS-1 routers and includes the following information:
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Feature Set Table for the Cisco CRS-1 Router
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 3.2.6 features. Table 1 and Table 2 list the Cisco IOS XR software feature set matrix and associated filenames that are available for the Cisco IOS XR Software Release 3.2.6 that is supported on the Cisco CRS-1 router.
Table 1 Cisco CRS-1 Supported Feature Sets (Cisco IOS XR Software Release 3.2.6 PIE Files)
Cisco IOS XR Unicast Routing Core Bundle
comp-hfr-mini.pie-3.2.6
Contains the required core packages, including OS, Admin, Base, Forwarding, Modular Services Card, and Routing packages.
Cisco IOS XR Manageability Package
hfr-mgbl-p.pie-3.2.6
CORBA agent, XML Parser, HTTP server, SNMP Agent, and Alarm correlation.
Cisco IOS XR MPLS Package
hfr-mpls-p.pie-3.2.6
MPLS-TE, LDP, MPLS-TE Link Management, MPLS Forwarding, Optical Link Management, OUNI, and RSVP.
Cisco IOS XR Multicast Package
hfr-mcast-p.pie-3.2.6
Multicast Routing Protocols (PIM, MSDP, IGMP, Auto-RP), Tools (SAP, MTrace), Infrastructure (MRIB, MURIB, MFWD), and BIDIR.
Cisco IOS XR Security Package
hfr-k9sec-p.pie-3.2.6
Support for encryption, decryption, IPSec, SSH, SSL, and PKI.
1 Packages are installed individually.
Memory Requirements for the Cisco CRS-1 Router
The minimum memory requirements for a Cisco CRS-1 router that is running Cisco IOS XR Software Release 3.2.6 are:
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Hardware Supported for the Cisco CRS-1 Router
Cisco IOS XR Software Release 3.2.6 supports Cisco CRS-1 routers. All hardware features are supported on Cisco IOS XR software, subject to the memory requirements specified in the "Memory Requirements for the Cisco CRS-1 Router" section.
Table 3 lists the hardware components supported on the Cisco CRS-1 router and the minimum versions required. See the "Determining the Software Version for the Cisco CRS-1 Router" section.
Software Compatibility for the Cisco CRS-1 Router
Cisco IOS XR Software Release 3.2.6 is compatible with the Cisco CRS-1 systems:
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Determining the Software Version for the Cisco CRS-1 Router
To determine the version of Cisco IOS XR software running on your router, log in to the router and enter the show version command:
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Cisco IOS XR Software, Version 3.2.6[00] Copyright (c) 2006 by cisco Systems, Inc.ROM: System Bootstrap, Version 1.40(20060413:002654) [CRS-1 ROMMON],MPLS-MR-2 uptime is 1 day, 16 hours, 59 minutes System image file is "disk0:hfr-os-mbi-3.2.6/mbihfr-rp.vm"cisco CRS-8/S (7457) processor with 4194304K bytes of memory. 7457 processor at 1197Mhz, Revision 1.120 Packet over SONET network interface(s) 20 SONET/SDH Port controller(s) 8 TenGigabitEthernet/IEEE 802.3 interface(s) 1 Ethernet/IEEE 802.3 interface(s) 8 GigabitEthernet/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).hfr-admin, V 3.2.6[00], Cisco Systems, at disk0:hfr-admin-3.2.6 Built on Tue Aug 8 14:06:26 PDT 2006 By ccms-view1 in /vws/srz/dwperon/production/3.2.6.00/hfr/workspace for c2.95.3-p8hfr-base, V 3.2.6[00], Cisco Systems, at disk0:hfr-base-3.2.6 Built on Tue Aug 8 13:54:28 PDT 2006 By ccms-view1 in /vws/srz/dwperon/production/3.2.6.00/hfr/workspace for c2.95.3-p8hfr-os-mbi, V 3.2.6[00], Cisco Systems, at disk0:hfr-os-mbi-3.2.6 Built on Tue Aug 8 13:10:15 PDT 2006 By ccms-view1 in /vws/srz/dwperon/production/3.2.6.00/hfr/workspace for c2.95.3-p8hfr-mcast, V 3.2.6[00], Cisco Systems, at disk0:hfr-mcast-3.2.6 Built on Tue Aug 8 14:37:43 PDT 2006 By ccms-view1 in /vws/srz/dwperon/production/3.2.6.00/hfr/workspace for c2.95.3-p8hfr-mpls, V 3.2.6[00], Cisco Systems, at disk0:hfr-mpls-3.2.6 Built on Tue Aug 8 14:30:38 PDT 2006 By ccms-view1 in /vws/srz/dwperon/production/3.2.6.00/hfr/workspace for c2.95.3-p8hfr-lc, V 3.2.6[00], Cisco Systems, at disk0:hfr-lc-3.2.6 Built on Tue Aug 8 14:23:55 PDT 2006 By ccms-view1 in /vws/srz/dwperon/production/3.2.6.00/hfr/workspace for c2.95.3-p8hfr-fwdg, V 3.2.6[00], Cisco Systems, at disk0:hfr-fwdg-3.2.6 Built on Tue Aug 8 14:12:04 PDT 2006 By ccms-view1 in /vws/srz/dwperon/production/3.2.6.00/hfr/workspace for c2.95.3-p8hfr-admin, V 3.2.6[00], Cisco Systems, at disk0:hfr-admin-3.2.6 Built on Tue Aug 8 14:06:26 PDT 2006 By ccms-view1 in /vws/srz/dwperon/production/3.2.6.00/hfr/workspace for c2.95.3-p8hfr-base, V 3.2.6[00], Cisco Systems, at disk0:hfr-base-3.2.6 Built on Tue Aug 8 13:54:28 PDT 2006 By ccms-view1 in /vws/srz/dwperon/production/3.2.6.00/hfr/workspace for c2.95.3-p8hfr-os-mbi, V 3.2.6[00], Cisco Systems, at disk0:hfr-os-mbi-3.2.6 Built on Tue Aug 8 13:10:15 PDT 2006 By ccms-view1 in /vws/srz/dwperon/production/3.2.6.00/hfr/workspace for c2.95.3-p8hfr-admin, V 3.2.6[00], Cisco Systems, at disk0:hfr-admin-3.2.6 Built on Tue Aug 8 14:06:26 PDT 2006 By ccms-view1 in /vws/srz/dwperon/production/3.2.6.00/hfr/workspace for c2.95.3-p8hfr-base, V 3.2.6[00], Cisco Systems, at disk0:hfr-base-3.2.6 Built on Tue Aug 8 13:54:28 PDT 2006 By ccms-view1 in /vws/srz/dwperon/production/3.2.6.00/hfr/workspace for c2.95.3-p8hfr-os-mbi, V 3.2.6[00], Cisco Systems, at disk0:hfr-os-mbi-3.2.6 Built on Tue Aug 8 13:10:15 PDT 2006 By ccms-view1 in /vws/srz/dwperon/production/3.2.6.00/hfr/workspace for c2.95.3-p8hfr-mcast, V 3.2.6[00], Cisco Systems, at disk0:hfr-mcast-3.2.6 Built on Tue Aug 8 14:37:43 PDT 2006 By ccms-view1 in /vws/srz/dwperon/production/3.2.6.00/hfr/workspace for c2.95.3-p8< truncated remainder of lengthy output >
Other Firmware Code for the Cisco CRS-1 Router
The following firmware code is supported by the Cisco CRS-1 router:
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http://www.cisco.com/pcgi-bin/tablebuild.pl/crs1rommon•
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Cisco XR 12000 Series Router
This section describes the system requirements for Cisco IOS XR Software Release 3.2.6 supported on the Cisco XR 12000 Series Router and includes the following information:
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Feature Set Table for the Cisco XR 12000 Series Router
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 3.2.3 features. Table 4 and Table 5 list the Cisco IOS XR software feature set matrix and associated filenames available for Cisco IOS XR software Release 3.2.3 supported on the Cisco XR 12000 Series Router.
Table 4 Cisco XR 12000 Series Router Supported Feature Sets (Cisco IOS XR Software Release 3.2.3 PIE Files)
Cisco IOS XR Unicast Routing Core Bundle
c12k-mini.vm-3.2.3
Contains the required core packages including, OS, Admin, Base, Forwarding, Line Cards, and Routing packages.
Cisco IOS XR Manageability Package
c12k-mgbl.pie-3.2.3
CORBA agent, XML Parser, HTTP server, SNMP agent, and Alarm correlation.
Cisco IOS XR MPLS Package
c12k-mpls.pie-3.2.3
MPLS-TE, LDP, MPLS-TE Link Management, MPLS Forwarding and RSVP.
Cisco IOS XR Multicast Package
c12k-mcast.pie-3.2.3
Multicast Routing Protocols (PIM, MSDP, IGMP, Auto-RP), Tools (SAP, MTrace), and Infrastructure (MRIB, MURIB, MFWD).
Cisco IOS XR Security Package
c12k-k9sec.pie-3.2.3
Support for Encryption, Decryption, IPSec, SSH, SSL, and PKI.
Cisco IOS XR Standby RP Boot Image
mbiprp-rp.vm-3.2.3
Support for booting the standby RP on a Cisco XR 12000 Series Router (PRP).
1 Packages are installed individually.
Memory Requirements for the Cisco XR 12000 Series Router
The minimum memory requirements for Cisco XR 12000 Series Router routers running Cisco IOS XR Software Release 3.2.3 are:
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Hardware Supported for the Cisco XR 12000 Series Router
Cisco IOS XR Software Release 3.2.3 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 for the Cisco XR 12000 Series Router" section.
Table 6 lists the hardware components supported on the Cisco XR 12000 Series Router and the minimum software versions required.
Software Compatibility for the Cisco XR 12000 Series Router
Cisco IOS XR software Release 3.2.3 is compatible with the Cisco XR 12000 Series Router systems:
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Other Firmware Code for the Cisco XR 12000 Series Router
The following firmware code is supported by the Cisco XR 12000 Series Router:
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New and Changed Information for Release 3.2.6
The following sections contain information on new features in Cisco IOS XR Software Release 3.2.6:
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New Software Features in Cisco IOS XR Software Release 3.2.6
No new software features exist in Cisco IOS XR Software Release 3.2.6.
Changed Software Features in Cisco IOS XR Software Release 3.2.6
No changed software features exist in Cisco IOS XR Software Release 3.2.6.
Important Notes
In certain countries, use of these products might 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, use the upgrade instructions we provide to minimize traffic impact. For instructions, see Upgrading from
Cisco IOS to Cisco IOS XR Software on the Cisco 12000 Series Router, Release 3.2 for procedures.Follow the instructions we provide for card removal and replacement (fan controller, fabric cards, line cards, RP, and so on) to avoid impacting traffic. See Cisco IOS XR Getting Started Guide for procedures.
If you intend to test beyond the combined maximum configuration that we test and publish, contact your Cisco representative to discuss how to engineer a large-scale configuration maximum for your testing.
A Cisco SIP-600 line card (LC) draws more power than previous LCs. If the configuration of power entry modules (PEMs) and other cards brings the power needs close to capacity, sufficient power might not be available when you insert a new card or remove a PEM. The show environment power-supply table command can help you plan the system power budget. Before inserting any new card or removing a PEM, use the show environment power-supply table command, as in the following example:
RP/0/0/CPU0:router# adminRP/0/0/CPU0:router(admin)# show env power-supply table48V Current R/S/I Module (V) (A) 0/24/* PEM1 46 12 PEM2 47 10 0/25/* PEM1 47 12 PEM2 47 10Total Power Supplies: 4800W Redundant Power Supplies: 2400W Worst Case Power Used: 1559W Current Power Used: 1022W Current Redundant Power Available: 1378W Current Total Power Available: 3778W Worst Case Redundant Power Available: 841W Worst Case Total Power Available: 3241WPID Description Watts --- ----------- ----- GRP-B Route Processor 38 PRP-1 Cisco 12000 Series Performance Route Processor 60 LC-4OC-3-POS-SM 4 Port Packet Over SONET OC-3c/STM-1 80 4OC3X/POS-MM-MJ-B 4 port ISE OC3 90 8OC3/POS-SM 8 Port Packet Over SONET OC-3c/STM-1 100 8OC3X/POS-MM-MJ-B 8 port ISE OC3 105 16OC3/POS-SM 16 Port Packet Over SONET OC-3c/STM-1 100 16OC3X/POS-M-MJ-B 16 port ISE OC3 channelized DS3/E3 140 LC-1OC12/POS-SM 1 Port OC12/STM4 Packet Over SONET/SDH Line Card 80 EOS. 4 Port E.D. Packet Over SONET OC-12c/STM-4 100 4OC12/POS-IR-SC-B 4 Port Packet Over SONET OC-12c/STM-4 100 4OC12X/POS-M-SC-B 4 Port ISE Packet Over SONET OC-12c/STM-4 140 EOS. 1 Port E.D. Packet Over SONET OC-48c/STM-16 80 OC48E/POS-SR-SC-B 1 Port Packet Over SONET OC-48c/STM-16 78 OC48X/POS-LR-SC 1 Port ISE Packet Over SONET OC-48c/STM-16 140 OC192/POS-VSR 1 Port Packet Over SONET OC-192c/STM-64 174 LC-OC12-DS3 1 port SONET OC12 channelized to DS3 80 CHOC-12/STS3-IR-SC 1 port SONET OC12 channelized to STS3/STM-1 80 4CHOC12/DS3-IR-SC-B 4 port ISE OC12 channelized STS-3c/STM-1 or DS3/E3 140 CHOC48/DS3-IR-SC 1 port ISE OC48 channelized STS-12c/STM-4, STS-.. 140 6DS3-SMB-B 6 Port Packet over DS3 80 12DS3-SMB-B 12 Port Packet over DS3 80 4OC3/ATM-SM-SC 4 port ATM Over SONET OC-3c/STM-1 70 LC-1OC12/ATM-SM 1 port ATM Over SONET OC12c/STM-4c 62 4OC12/ATM-IR-SC 4 port ATM Over SONET OC12c/STM-4c 122 8FE-FX-SC-B 8 Port Fast Ethernet 77 GE-GBIC-SC-B 1 Port Gigabit Ethernet 65 3GE-GBIC-SC Cisco 12000 3 port Gigabit Ethernet 71 4GE-SFP-LC Cisco 12000 4 Port Gigabit Ethernet 106 OC12/SRP-IR-SC-B 1 Port SONET based SRP OC-12c/STM-4 80 OC48/SRP-LR-SC 1 Port SONET based SRP OC-48c/STM-16 100 12000-SIP-600 Cisco 12000 Series SPA Interface Processor-600 256 GSR04-FABRIC GSR 12404 Consolidated Fabric/Alarm Card 143 GSR6-CSC GSR 12406 Clock Scheduler Card 56 GSR6-SFC GSR 12406 Switch Fabric Card 45 GSR10-CSC GSR 12410 Clock Scheduler Card 19 GSR10-SFC GSR 12410 Switch Fabric Card 64 CSC-160,GSR12810 Clock Scheduler Card(10) OC-768 54 SFC-160,GSR12810 Switch Fabric Card(10) OC-768 107 GSR16/80-CSC Cisco 12016 80 Gbps GSR Clock Scheduler Card 43 GSR16/80-SFC Cisco 12016 80 Gbps GSR Switch Fabric Card 35 GSR16/320-CSC Cisco 12416 320 Gbps GSR Clock Scheduler Card 106 GSR16/320-SFC Cisco 12416 320 Gbps Switch Fabric Card 93 CSC-256,GSR12816 Clock Scheduler Card(16) OC-768 177 SFC-256,GSR12816 Switch Fabric Card(16) OC-768 151 GSR04-FABRIC Alarm Board(404) 208 GSR6-ALRM GSR 12406 Alarm Module 26 GSR10-ALRM GSR 12410 Alarm Module 33 GSR16-ALRM Cisco 12016 Alarm Module 35 GSR6-BLOWER GSR 12406 Blower Module 178 GSR16-BLOWER GSR 12016 Blower Module 178 Bus Board(16) 20 RP/0/0/CPU0:c12k#If you plan to insert a new card, locate the entry for the card to be inserted and note the power it consumes. If this power is less than the figure given in Worst Case Redundant Power Available (the figure 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 down for replacement without impact.
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Caveats
Caveats describe unexpected behavior in Cisco IOS XR software. A severity 1 caveat is the most serious; a severity 2 caveat is less serious. This section lists resolved, open, relevant caveats and the software module upgrade (SMU)s that resolves these caveats in Release 3.2.6.
Resolved Caveats
The following caveats from prior releases have been resolved in Cisco IOS XR Software Release 3.2.6.
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Brief Description: A loss of configuration can occur upon upgrade.
Conditions: The configuration loss can occur because of a broken security banner that has been configured in alternate configuration mode.
For example, if a customer has the following banner login config in the running-configuration:
banner login %***** WARNING *****This computer system is private and may be accessed only by authorized users. Data and programs in this system are confidential and proprietary to the system owner and may not be accessed, viewed, copied, reproduced, duplicated, modified, distributed, or disclosed without authorization. Unauthorized users or users who exceed their authorized level of access are subject to prosecution under state or federal law as well as Company initiated proceedings%The preceding banner ends up as "banner login%" in the ASCII alternate-configuration. For example, you might see the following messages:
clock timezone MET 1clock summer-time MET recurring last sunday march 02:00 last sunday october 03:00banner motd %telnet ipv4 server max-servers 10Workaround: Remove any banner commands, such as "banner login" or "banner motd," before performing an upgrade. After the upgrade has finished, reapply your banner configuration lines.
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Brief Description: The maximum transfer unit (MTU) on a bundled Packet-Over-SONET (POS) interface is removed when an RP fails over.
Conditions: If no intf-owner MTU configuration verification is made on the standby RP, the default action is to reject the configuration. The result is that the MTU configuration is subsequently missing after an RP failover.
Workaround: None
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Brief Description: OC192 RX PKT LED is not blinking on Port 0 and Port 2 while packets arrive.
Conditions: Problem occurs on a 4-port OC-192c/STM-64c POS/DPT PLIM that is running Release 3.2.2 or a later release. (Release 3.2.1 does not have this problem.)
Workaround: None
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Brief Description: The discovery process is not spawned on standby board (RP, DRP).
Symptom: The discovery process, which collects DRAM errors, peripheral component interconnect (PCI) bus errors, and so on, must run on the standby card (RP, DRP). Today, the system error on the standby card is reported when the board is becoming active. This causes the system to fail. Two applicable DRAM bits apply to this failure: error correcting codes (ECC) and PCI.
Conditions: This causes a problem only when the standby RP is affected by a hardware failure.
Cisco IOS XRWorkaround: None
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Brief Description: Message appears: "SECURITY-LOCALD-4-ACCT_FAILURE after IOS XR upgrade with no TACACS server."
Symptom: The following log message can be seen in a Cisco CRS-1 router after an upgrade of
Cisco IOS XR software:locald[241]: %SECURITY-LOCALD-4-ACCT_FAILURE: Failed to send the accounting record - retry limit exceeded and the request will be dropped.
Conditions: This error occurs when a customer is using a TACACS+ server for authentication on the Cisco CRS-1 router.
Workaround: The workaround is to restart the local process on the router.
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Brief Description: Software fails to send an SNMP trap for the CISCO-SENSOR-MIB.
Conditions: Software fails to send an SNMP trap for the CISCO-SENSOR-MIB when any thresholds are reached for the environmental process in Release 3.2.3. The Cisco CRS-1 router (and likely the Cisco XR 12000 Series Router) fails to send an SNMP trap when any thresholds are reached for the envmon process under Release 3.2.3 and also the latest Release 3.3.x builds. The device does generate alarms through syslog, however.
Workaround: A workaround is to use syslog messages for alarming environment issues.
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Brief Description: The following message might appear:
"Failed to wrlock CM conn rwlock."
Symptom: SYSDB-SYSDB-3-LOCKING log messages might appear on a Cisco CRS-1 router.
Conditions: This error occurs on a Cisco CRS-1 router that is running Cisco IOS XR software.
Workaround: Restart the sysdb_mc process on the node that is putting out this error.
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Symptom: TE tunnel label goes unlabeled after RP switchover if graceful restart has been enabled.
Brief Description: When RP switchover is performed on the Cisco CRS-1 router with both non-stop forwarding (NSF) and Resource Reservation Protocol (RSVP) graceful restart enabled, MPLS TE tunnel on the remote router (NSF aware) that uses RP failover router as the tunnel tail flaps. It causes traffic loss up to 30 seconds.
Conditions: All of the following conditions are present:
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Workaround: Change the IGP network interface type to Point-To-Point.
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Brief Description: IS-IS cannot create bidirectional forwarding detection (BFD) session after RP fail over and LC OIR because protocols that use BFD fail to create their BFD sessions.
Conditions: This problem might happen after an RP failover or an LC reload.
Workaround: Restart the BFD process on an RP: "process restart bfd."
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Brief Description: Traffic is lost after RP failover.
Symptom: After failover with nongraceful restart configured for label distribution protocol (LDP) and no graceful restart for a TE is configured.
Conditions: MPLS forwarding entries are not correct on a LC. Some of the label entries have some invalid outgoing paths or nexthops in their load balance o/p data structure, so they do not match MPLS forwarding entries on the RP in the control plane LDP or Label Switching Database (LSD).
Potential fix of the issue:
LSD does not allow clients like LDP to connect and send requests to LSD if the transport to the Label Forwarding Database (LFD) is not yet available.
Workaround: None
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Brief Description: Tag 2 IP paths lose traffic after a no shut of an interface with Release 3.2.x.
Conditions: After an interface shutdown, the address resolution protocol (ARP) entries on that interface are removed, and then IPv4 and MPLS adjacency entries are removed. If the interface is no shut and if MPLS traffic is flowing, no ARP request is generated and traffic is dropped. An ARP request is sent only when an attempt is made to forward IPv4 traffic out from the interface.
Workaround: Use static ARP entries. In addition, this fix ensures that an MPLS packet is pushed to Netio and an IPv4 ARP request is generated.
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Brief Description: The RSVP process fails upon an show rsvp session detail execution if either the Path or RESV message has more than 20 Record Route Option (RRO) subobjects.
The log shows MALLOC_ERROR as the RSVP process fails.
Conditions: (Observed with Release 3.2.3.)
The failure is specific to the show rsvp session detail command and happens if either the Path or Resv message contains more than 20 RRO subobjects.
For Path messages, the number of nodes in the topology refers to nodes that are upstream from a Cisco CRS-1 router.
Workaround: Do not use the show rsvp session detail command.
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Brief Description: The system fails to the boot minimum boot image (MBI) after system is powered off and on.
Symptom: The system does not boot after power is turned off and on. RP constantly reboots.
Workaround: Boot with one RP installed.
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Brief Description: System cannot boot after power is turned off and on.
Symptom: System cannot boot after power is turned off and on. RP appears to constantly reboot.
Conditions: This problem has been observed with Release 3.2.3 or Release 3.2.4.
Workaround: Connect console connection to AUX port. After the RP resets, wait until prompted for username and password. Log in with a locally authenticated username. At the command prompt, enter the reboot command. The system reloads and, in most instances, boots correctly. If the system does not reboot correctly, repeat the procedure.
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Brief Description: Null TLU2 entry when an IGP Equal Cost Multipath Protocol (ECMP) to BGP next-hop address exists.
Symptom: On a Cisco CRS-1 router or MC, a packet destined to a specific address is dropped due to Null TLU2 entry in LC hardware egress CEF table.
Conditions: The problem occurs when both the following conditions are true:
A packet follows the BGP path
That packet encounters an IGP Equal Cost Multipath Protocol (ECMP) to BGP next-hop address.
Workaround: Take the following steps:
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2.
3.
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Brief Description: The bound addresses for a remote peer went missing when the peer's router-ID changed.
Symptom: Unit under test (UUT) is the router running Cisco IOS XR software. After the router ID of a neighbor changes, the address binding error messages appear on UUT. UUT has no addresses for the neighbor, so any traffic directed to the neighbor goes only to the IP (unlabeled).
Conditions: LDP does not handle address binding advertisement correctly when a change to the neighbor router ID causes a peer session to flap, causing a new peer session to come up (and advertise address bindings), while the previous peer session (with the old router ID) is in the process of being cleaned up.
Workaround: Restart the LDP process or clear the affected given LDP session by using the mpls ldp restart session command.
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Brief Description: Process statsd_server is blocked by Group Services Protocol (GSP).
Symptom: Various processes become blocked by GSP, causing service loss over the affected node.
Conditions: This problems follows an RP failover.
Workaround: Restart the GSP process on the affected node by using the process restart gsp location location of the node command.
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Brief Description: IP connectivity problem occurs after reload.
Symptom: Ping fails after reload, seen intermittently.
Conditions: Problem intermittently occurs after a reload.
Workaround: Restart the adjacency information base (AIB) to restore connectivity.
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Brief Description: Umbrella DDTS for CSCsd53847 and CSCsd89508.
This DDTS addresses two issues:
1.
2.
Conditions: Condition No. 1 is seen in regular operation. Condition No. 2 is seen if a nondefault value is set through the snmp-server packetsize command.
Workaround: Workaround for condition No. 2 is to remove the snmp-server packetsize configuration and return it to the default.
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Brief Description: A message of noSuchName on OID is returned upon a query MIBCiscoPingTable 1.3.6.1.4.1.9.9.16.1.1.1.14.
Symptom: A first get request answer returns a "no such name" message, but the second get request returns the answer.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~SNMPv2c::getrequest("aaa.bbb.ccc.ddd", "xxxxRO", "1.3.6.1.4.1.9.9.16.1.1.1.14.1279769442")= (129, 0, 1.3.6.1.4.1.9.9.16.1.1.1.14.1279769442);Error 2: No Such Namesleep(1)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~A second getrequest provides the result.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~SNMPv2c::getrequest("aaa.bbb.ccc.ddd", "xxxxRO", "1.3.6.1.4.1.9.9.16.1.1.1.14.1279769442")= (2, 1, 1.3.6.1.4.1.9.9.16.1.1.1.14.1279769442);Workaround: None.
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Brief Description: If the second link in ECMP load balancing receives a no shutdown command, traffic is diverted to this link and dropped for a second, until ARP is resolved.
Conditions:
Traffic to the destination address that is made available by issuing a no shutdown command to the link is already flowing over a different link. Bringing up the new link causes routing protocols to divert some traffic over the link. No ARP entry exists for the next-hop address over the new link, so a delay occurs in resolving the address, which results in packet loss.
Workaround: Configure a static ARP entry for the adjacency on the interface that provides a second ECMP path and is expected to flap.
In addition to the DDTS items just described, Table 7 contains DDTSs (which are released as SMUs in previous maintenance releases) that are also resolved in Release 3.2.6.
Guest
