Cisco XR 12000 Series Router

Table Of Contents

Release Notes for Cisco XR 12000 Series Router for Cisco IOS XR Software Release 3.9.0

Key Changes from Previous Releases in Cisco IOS XR Release 3.9.0

Contents

Introduction

System Requirements

Feature Set Table

Memory Requirements

Hardware Supported

Software Compatibility

Other Firmware Support

Minimum Firmware Requirement

Determining Your Software Version

New Features in Cisco IOS XR Software Release 3.9.0

New Software Features Supported on all Platforms

Cisco XR 12000 Series Router-Specific Software Features

New Hardware Features for the Cisco XR 12000 Series Router

Important Notes

Minimum Flash Disk Requirements When Upgrading to Release 3.9.0

Caveats

Cisco IOS XR Caveats

Caveats Specific to the Cisco XR 12000 Series Router

Resolved Cisco IOS XR Software PSIRT-Related Caveats

Upgrading Cisco IOS XR Software

Troubleshooting

Related Documentation

Obtaining Documentation and Submitting a Service Request

Release Notes for Cisco XR 12000 Series Router for Cisco IOS XR Software Release 3.9.0

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July 5, 2011

Cisco IOS XR Software Release 3.9.0

Text Part Number OL-21191-01

These release notes describe the features provided in the Cisco IOS XR Software Release 3.9.0 for the Cisco XR 12000 Series Router and are updated as needed.

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Note For information on the Cisco XR 12000 Series Router running Cisco IOS XR Software Release 3.9.0, see the "Important Notes" section.

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You can find the most current Cisco IOS XR software documentation at

http://www.cisco.com/en/US/products/ps6342/tsd_products_support_series_home.html

These electronic documents may contain updates and modifications. For more information on obtaining Cisco documentation, see the "Obtaining Documentation and Submitting a Service Request".

For a list of software caveats that apply to Cisco IOS XR Software Release 3.9.0, see the "Caveats" section. The caveats are updated for every release and are described at www.cisco.com.

We recommend that you view the field notices for this release located at the following URL to see if your software or hardware platforms are affected:

http://www.cisco.com/public/support/tac/fn_index.html

Key Changes from Previous Releases in Cisco IOS XR Release 3.9.0

Cisco IOS XR Software Release 3.9.0 requires a 2-GB Flash Disk as a minimum. Therefore, you must upgrade an existing PCMCIA 1-GB Flash Disk to 2 GB or 4 GB before upgrading to Cisco IOS XR Software Release 3.9.0. For more information, see the "Minimum Flash Disk Requirements When Upgrading to Release 3.9.0" section.

Contents

These release notes contain the following sections:

•Introduction

•System Requirements

•Determining Your Software Version

•New Features in Cisco IOS XR Software Release 3.9.0

•Important Notes

•Minimum Flash Disk Requirements When Upgrading to Release 3.9.0

•Caveats

•Upgrading Cisco IOS XR Software

•Troubleshooting

•Related Documentation

•Obtaining Documentation and Submitting a Service Request

Introduction

Cisco IOS XRsoftware is a distributed operating system designed for continuous system operation combined with service flexibility and high performance.

Cisco IOS XR software running on the Cisco XR 12000 Series Router provides the following features and benefits:

•IP and Routing—Supports a wide range of IPv4 and IPv6 services and routing protocols; such as Border Gateway Protocol (BGP), Routing Information Protocol (RIPv2), Intermediate System-to-Intermediate System (IS-IS), Open Shortest Path First (OSPF), IP Multicast, Routing Policy Language (RPL), Hot Standby Router Protocol (HSRP), and Virtual Router Redundancy Protocol features (VRRP).

•BGP Prefix Independent Convergence—Provides the ability to converge BGP routes within sub seconds instead of multiple seconds. The Forwarding Information Base (FIB) is updated, independent of a prefix, to converge multiple 100K BGP routes with the occurrence of a single failure. This convergence is applicable to both core and edge failures and with or with out MPLS. This fast convergence innovation is unique to Cisco IOS XR software.

•Multiprotocol Label Switching (MPLS)—Supports MPLS protocols, including Traffic Engineering (TE), Resource Reservation Protocol (RSVP), Label Distribution Protocol (LDP), Virtual Private LAN Service (VPLS), and Layer 3 Virtual Private Network (L3VPN).

•Multicast—Provides comprehensive IP Multicast software including Source Specific Multicast (SSM) and Protocol Independent Multicast (PIM) in Sparse Mode only.

•Quality of Service (QoS)—Supports QoS mechanisms including policing, marking, queuing, random and hard traffic dropping, and shaping. Additionally, Cisco IOS XR software also supports modular QoS command-line interface (MQC). MQC is used to configure QoS features.

•Manageability—Provides industry-standard management interfaces including modular command-line interface (CLI), Simple Network Management Protocol (SNMP), and native Extensible Markup Language (XML) interfaces. Includes a comprehensive set of Syslog messages.

•Security—Provides comprehensive network security features including access control lists (ACLs); routing authentications; Authentication, Authorization, and Accounting (AAA)/Terminal Access Controller Access Control System (TACACS+); Secure Shell (SSH); Management Plane Protection (MPP) for management plane security; and Simple Network Management Protocol version3 (SNMPv3). Control plane protections integrated into line card Application-Specific Integrated Circuits (ASICs) include Generalized TTL Security Mechanism (GTSM), RFC 3682, and Dynamic Control Plane Protection (DCPP).

•Craft Works Interface (CWI)—CWI is a client-side application used to configure and manage Cisco routers. Management and configuration features include fault, configuration, security, and inventory, with an emphasis on speed and efficiency. The CWI provides a context-sensitive graphical representation of the objects in a Cisco router, simplifying the process of configuring and managing the router. The CWI allows you to log in to multiple routers and perform management tasks.

•Availability—Supports rich availability features such as fault containment, fault tolerance, fast switchover, link aggregation, nonstop routing for ISIS, LDP, BGP, and OSPF, and nonstop forwarding (NSF).

•Multicast service delivery in SP NGN—MVPNv4 support carries multicast traffic over an ISP MPLS core network.

•IPv6 Provider Edge Router support for IPv6 applications—Delivers IPv6 traffic over an IPv4/MPLS core with IPv6 provider edge router (6PE) support.

•IPv6 VPN over MPLS (6VPE) support—Delivers IPv6 VPN over MPLS (IPv6) VPN traffic over an IPv4 or MPLS core with 6VPE support.

•6VPE over L2TPv3 support—Delivers IPv6 VPN traffic over L2TPv3 core with 6VPE support. This feature is also available on Cisco IOS software.

•Enhanced core competencies:

–IP fast convergence with Fast Reroute (FRR) support for Intermediate System-to-Intermediate System (IS-IS) and OSPF

–Path Computation Element (PCE) capability for traffic engineering

•L2TPv3 Tunneling Mechanism—Service Providers who do not use MPLS in the core, but want to offer VPN services can use the L2TPv3 tunneling mechanism. This feature support includes IPv4 (VPNv4) and IPv6 (6VPE) VPN services using L2TPv3 encapsulation. The L2TPv3 packet is encapsulated in an IPv4 delivery header and is carried across an IPv4 backbone. VPN prefixes are advertised with BGP labels and resolved over L2TPv3 tunnels. This feature is supported only on the Cisco XR 12000 Series Router.

For more information about new features provided on the Cisco XR 12000 Series Router for Cisco IOS XR Software Release 3.9.0, see the "New Features in Cisco IOS XR Software Release 3.9.0" section in this document.

System Requirements

This section describes the system requirements for Cisco IOS XR Software Release 3.9.0 supported on the Cisco XR 12000 Series Router. The system requirements include the following information:

•Feature Set Table

•Memory Requirements

•Hardware Supported

•Software Compatibility

•Other Firmware Support

To determine the software versions or levels of your current system, see the "Determining Your Software Version" section.

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 3.9.0 features.

Table 1 lists the Cisco IOS XR software feature set matrix (PIE files) and associated filenames available for Cisco IOS XR Software Release 3.9.0, supported on the Cisco XR 12000 Series Router.

Table 1 Cisco XR 12000 Series Router Supported Feature Set (Cisco IOS XR Software
Release 3.9.0 PIE Files) 

Feature Set	Filename	Description
Composite Package
Cisco IOS XR IP Unicast Routing Core Bundle	c12k-mini.pie-3.9.0	Contains the required core packages, including OS, Admin, Base, Forwarding, Routing, SNMP Agent, and Alarm Correlation.
Cisco IOS XR IP Unicast Routing Core Bundle	c12k-mini.vm-3.9.0	Contains the required core packages including OS, Admin, Base, Forwarding, and Routing SNMP Agent, and Alarm Correlation.
Optional Individual Packages1
Cisco IOS XR Manageability Package	c12k-mgbl.pie-3.9.0	CORBA2 agent, XML Parser, and HTTP server packages.
Cisco IOS XR MPLS Package	c12k-mpls.pie-3.9.0	MPLS-TE,3 LDP, 4 MPLS Forwarding, MPLS OAM,5 LMP,6 OUNI,7 and RSVP.8
Cisco IOS XR Multicast Package	c12k-mcast.pie-3.9.0	Multicast Routing Protocols (PIM,9 MSDP,10 IGMP,11 Auto-RP, BSR12 ), Tools (SAP, MTrace, MRINFO), and Infrastructure (MRIB,13 MURIB,14 MFWD)15 .
Cisco IOS XR Security Package	c12k-k9sec.pie-3.9.0	Support for Encryption, Decryption, IPSec16 , SSH,17 SSL,18 and PKI.19 Software based IPSec support: maximum of 500 tunnels
Cisco IOS XR Standby RP Boot Image	mbiprp-rp.vm-3.9.0	Support for booting the Standby RP on a Cisco XR 12000 Series Router.
Cisco IOS XR Documentation Package	The documentation package is not supported in Cisco IOS XR Software Release 3.9.0.	Please refer to the Cisco XR 12000 Series Router command reference documentation located at the following URL: http://www.cisco.com/en/US/products/ps6342/prod_command_reference_list.html
Cisco IOS XR FPD Package	c12k-fpd.pie-3.9.0	Firmware for shared port adapters (SPA) and for fixed port line cards supported in Cisco IOS XR.
Cisco IOS XR Diagnostic Package	c12k-diags.pie-3.9.0	Diagnostic utilities for Cisco IOS XR routers.

1 Packages are installed individually 2 Common Object Request Broker Architecture 3 MPLS Traffic Engineering 4 Label Distribution Protocol 5 Operations, Administration, and Maintenance 6 Link Manager Protocol 7 Optical User Network Interface 8 Resource Reservation Protocol 9 Protocol Independent Multicast 10 Multicast Source Discovery Protocol 11 Internet Group Management Protocol 12 Bootstrap router 13 Multicast Routing Information Base 14 Multicast-Unicast RIB 15 Multicast forwarding 16 IP Security 17 Secure Shell 18 Secure Socket Layer 19 Physical layer interface module

Table 2 lists the Cisco XR 12000 Series Router TAR files.

Table 2 Cisco XR 12000 Series Router Supported Feature Sets (Cisco IOS XR Software
Release 3.9.0 TAR Files) 

Feature Set	Filename	Description
Cisco IOS XR IP/MPLS Core Software	XR12000-iosxr-3.9.0.tar	•Cisco IOS XR IP Unicast Routing Core Bundle •Cisco IOS XR Manageability Package •Cisco IOS XR MPLS Package •Cisco IOS XR Multicast Package
Cisco IOS XR IP/MPLS Core Software 3DES	XR12000-iosxr-k9-3.9.0.tar	•Cisco IOS XR IP Unicast Routing Core Bundle •Cisco IOS XR Manageability Package •Cisco IOS XR MPLS Package •Cisco IOS XR Multicast Package •Cisco IOS XR Security Package

Memory Requirements

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Caution If you remove the media in which the software image or configuration is stored, the router may become unstable and fail.

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The minimum memory requirements for a Cisco XR 12000 Series Router running Cisco IOS XR Software Release 3.9.0 consist of the following:

•2-GB route memory on performance route processor 2 (PRP-2)

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Note 4-GB route memory on PRP-2 is required if it is planned to scale to more than 64K IPsec tunnels per chassis.

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•2-GB or greater ATA flash storage on PRP-2

•4-GB route memory on performance route processor 3 (PRP-3)

•2-GB or greater Compact flash storage on PRP-3

•1-GB line card route memory on all Engine 3 line cards

•1-GB line card memory on Engine 5-based SPA interface processor (SIP-600)

–The default route memory on the 12000-SIP-600 is 1GB

•2-GB line card memory on all Engine 5-based SPA interface processors (SIPs)

–The default route memory on the 12000-SIP-401, 501, and 601 is 2 GB.

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Note The performance route processor 1 (PRP-1) is not supported in production environments.

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•2-GB PCMCIA Flash Disk

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Note Cisco IOS XR Software Release 3.9.0 requires a 2-GB Flash Disk as a minimum. Therefore, you must upgrade an existing PCMCIA 1-GB Flash Disk to 2 GB before upgrading to Cisco IOS XR Software Release 3.9.0. For more information, see the "Minimum Flash Disk Requirements When Upgrading to Release 3.9.0" section.

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Hardware Supported

All hardware features are supported on Cisco IOS XR software, subject to the memory requirements specified in the "Memory Requirements" section.

Table 3 lists the supported hardware components on the Cisco XR 12000 Series Router and the minimum required software versions. For more information, see the "Determining Your Software Version" section.

Table 3 Cisco XR 12000 Series Router Supported Hardware and Minimum Software Requirements 

Component	Part Number	Support from Version
Cisco XR 12000 Series Router Series Router Systems
Cisco XR 12000 Series 4-slot chassis	XR-12000/4	3.3
Cisco XR 12000 Series 6-slot chassis	XR-12000/6	3.3
Cisco XR 12000 Series 10-slot chassis	XR-12000/10	3.3
Cisco XR 12000 Series 16-slot chassis	XR-12000/16	3.3
Cisco XR 12000 Series Router Chassis Hardware
4-slot chassis & backplane, 1 Blower, 2 AC	12000/4-AC	3.3
4-slot chassis & backplane, 1 Blower, 2 DC	12000/4-DC	3.3
6-slot chassis & backplane, 2 Alarm, 1 Blower, 2 AC	12000/6-AC	3.3
6-slot chassis & backplane, 2 Alarm, 1 Blower, 2 DC	12000/6-DC	3.3
10-slot chassis & backplane, 2 Alarm, 1 Blower, 2 AC	12000/10-AC	3.3
10-slot chassis & backplane, 2 Alarm, 1 Blower, 2 DC	12000/10-DC	3.3
16-slot chassis & backplane, 2 Alarm, 2 Blower, 3 AC	12000/16-AC3	3.3
16-slot chassis & backplane, 2 Alarm, 2 Blower, 4 DC	12000/16-DC	3.3
16-slot chassis & backplane, 2 Alarm, 2 Blower, 4 AC	12000/16-AC4	3.3
Cisco XR12000 16-slots; 2 Alarms, Advanced 2 Blowers, up to 8 DC	12000E/16-DC	3.8
Cisco XR12000 16-slots; 2 Alarms, Advanced 2 Blowers, up to 8 AC	12000E/16-AC	3.8
Cisco XR 12000 Series Router Fabric Hardware
Enhanced 20 Gbps Fabric & Alarm card for Cisco 12004	12004E/20	3.6
Enhanced 80 Gbps Fabric & Alarm card for Cisco 12404	12404E/80	3.6
Enhanced 30 Gbps Fabric (2xCSC and 3xSFC) for Cisco 12006	12006E/30	3.6
Enhanced 120 Gbps Fabric (2xCSC and 3xSFC) for Cisco 12406	12406E/120	3.6
Enhanced 50 Gbps Fabric (2xCSC and 5xSFC) for Cisco 12010	12010E/50	3.5.2
Enhanced 200 Gbps Fabric (2xCSC and 5xSFC) for Cisco 12410	12410E/200	3.5.2
Enhanced 800 Gbps Fabric (2xCSC and 5xSFC) for Cisco 12810	12810E/800	3.4
Enhanced 80 Gbps Fabric (2xCSC and 3xSFC) for Cisco 12016	12016E/80	3.5.2
Enhanced 320 Gbps Fabric (2xCSC and 3xSFC) for Cisco 12416	12416E/320	3.5.2
Enhanced 1280 Gbps Fabric (2xCSC and 3xSFC) for Cisco 12816	12816E/1280	3.4
80 Gbps Fabric & Alarm card for Cisco 12404	12404/80	3.3
30 Gbps Fabric (2xCSC and 3xSFC) for Cisco 12006	12006/30	3.3
120 Gbps Fabric (2xCSC and 3xSFC) for Cisco 12406	12406/120	3.3
50 Gbps Fabric (2xCSC and 5xSFC) for Cisco 12010	12010/50	3.3
200 Gbps Fabric (2xCSC and 5xSFC) for Cisco 12410	12410/200	3.3
80 Gbps Fabric (2xCSC and 3xSFC) for Cisco 12016	12016/80	3.3
320 Gbps Fabric (2xCSC and 3xSFC) for Cisco 12416	12416/320	3.3
Cisco XR 12000 Series Route Processor Hardware
Cisco XR 12000 Series Performance Route Processor 2	PRP-2	3.2
Cisco XR 12000 Series Performance Route Processor 3	PRP-3	3.8
Cisco XR 12000 Series 40 GB Hard Drive Option	HD-PRP2-40G	3.2
Cisco XR 12000 Series PRP-3 80G Hard Drive	HD-PRP3	3.8
Cisco XR 12000 Series General Chassis Hardware
Cisco XR 12000 Series PCMCIA Flash Disk 1 GB	MEM-FD1G	3.2
Cisco XR 12000 Series PCMCIA Flash Disk 2 GB	MEM-FD2G	3.2
Cisco XR 12000 Series PCMCIA Flash Disk 4 GB	MEM-FD4G	3.8
Cisco XR 12000 Series PRP-3 2GB Compact Flash	FLASH-PRP3-2G	3.8
Cisco XR 12000 Series PRP-3 4GB Compact Flash	FLASH-PRP3-4G	3.8
Cisco XR 12000 Series PRP-3 4GB Memory (2X2GB DIMM)	MEM-PRP3-4G	3.8
Cisco XR 12000 Series PRP-3 8GB Memory (2X4GB DIMM)	MEM-PRP3-8G	3.8
Cisco XR 12000 Series SPA Interface Processor Hardware
Multirate 2.5G IP Services Engine (Modular)	12000-SIP-401	3.3
Multirate 5G IP Services Engine (Modular)	12000-SIP-501	3.3
Multirate 10G IP Services Engine (Modular)	12000-SIP-601	3.3
Cisco XR 12000 Series SPA Interface Processor 10G	12000-SIP-600	3.2
Cisco XR 12000 Series Router SONET Interface Modules and SPAs
Cisco XR 12000 Series 4xOC12c/STM4c POS Intermediate Reach Single-Mode optics	4OC12X/POS-I-SC-B	3.2
Cisco XR 12000 Series 4xOC12c/STM4c POS Short Reach Multi-Mode optics	4OC12X/POS-M-SC-B	3.2
Cisco XR 12000 Series 16xOC3c/STM1c POS Short Reach Multi-Mode optics	16OC3X/POS-M-MJ-B	3.2
Cisco XR 12000 Series 16xOC3c/STM1c POS Intermediate Reach Single-Mode optics	16OC3X/POS-I-LC-B	3.2
Cisco XR 12000 Series 8xOC3c/STM1c POS Short Reach Multi-Mode optics	8OC3X/POS-MM-MJ-B	3.2
Cisco XR 12000 Series 8xOC3c/STM1c POS Intermediate Reach Single-Mode optics	8OC3X/POS-IR-LC-B	3.2
Cisco XR 12000 Series 4xOC3c/STM1c POS Short Reach Multi-Mode optics	4OC3X/POS-MM-MJ-B	3.2
Cisco XR 12000 Series 4xOC3c/STM1c POS Intermediate Reach Single-Mode optics	4OC3X/POS-IR-LC-B	3.2
Cisco XR 12000 Series 4xOC3c/STM1c POS Long Reach Single-Mode optics	4OC3X/POS-LR-LC-B	3.2
Cisco XR 12000 Series 1xOC48c/STM16c POS Short Reach Single-Mode optics	OC48X/POS-SR-SC	3.2
Cisco XR 12000 Series 1xOC48c/STM16c POS Long Reach Single-Mode optics	OC48X/POS-LR-SC	3.2
Cisco XR 12000 Series 4-Port OC-3c/STM-1c ATM ISE Line Card, multimode	4OC3X/ATM-MM-SC	3.4
Cisco XR 12000 Series 4-Port OC-3c/STM-1c ATM ISE Line Card, single-mode	4OC3X/ATM-IR-SC	3.4
Cisco XR 12000 Series 4-port OC-12/STM-4 ATM multimode ISE line card with SC connector	4OC12X/ATM-MM-SC	3.4
Cisco XR 12000 Series 4-port OC-12/STM-4 ATM single-mode, intermediate-reach ISE line card with SC Connector	4OC12X/ATM-IR-SC	3.4
Cisco 1-Port OC-192c/STM-64c POS/RPR Shared Port Adapter with VSR Optics	SPA-OC192POS-VSR	3.3
Cisco 1-Port OC-192c/STM-64c POS/RPR Shared Port Adapter with LR Optics	SPA-OC192POS-LR	3.2
Cisco 1-Port OC-192c/STM-64c POS/RPR Shared Port Adapter with XFP Optics	SPA-OC192POS-XFP	3.2
2-Port OC-48/STM16 POS/RPR Shared Port Adapters	SPA-2XOC48POS/RPR	3.3
1-Port Channelized OC-12/DS0 Shared Port Adapters	SPA-1XCHOC12/DS0	3.5
1-Port Channelized STM-1/OC-3 to DS0 Shared Port Adapter	SPA-1XCHSTM1/OC3	3.5
1-Port OC-48c/STM-16 POS/RPR Shared Port Adapter	SPA-1XOC48POS/RPR	3.5
2-Port OC-12c/STM-4 POS Shared Port Adapter	SPA-2XOC12-POS	3.5
4-Port OC-12c/STM-4 POS Shared Port Adapter	SPA-4XOC12-POS	3.5
4-Port OC-3c/STM-1 POS Shared Port Adapter	SPA-4XOC3-POS-V2	3.5
8-Port OC-12c/STM-4 POS Shared Port Adapter	SPA-8XOC12-POS	3.5
8-Port OC-3c/STM-1 POS Shared Port Adapter	SPA-8XOC3-POS	3.5
Cisco 8-Port Channelized T1/E1 Shared Port Adapter	SPA-8XCHT1/E1	3.6
Cisco 1-Port Channelized OC-48/DS3 Optical Packet Processor Shared Port Adapter	SPA-1XCHOC48/DS3	3.6
1-Port Clear Channel OC-3 ATM SPA	SPA-1XOC3-ATM-V2	3.7
3-Port Clear Channel OC-3 ATM SPA	SPA-3XOC3-ATM-V2	3.7
1-Port Clear Channel OC-12 ATM SPA	SPA-1XOC12-ATM-V2	3.7
2-Port Channelized T3/E3 ATM CEoP SPA	SPA-2CHT3-CE-ATM	3.7
Ethernet Interface Modules and SPAs
Cisco XR 12000 Series 4xGE with SFP optics	4GE-SFP-LC	3.2
Cisco 5-Port Gigabit Ethernet Shared Port Adapter, Version 2	SPA-5X1GE-V2	3.4
Cisco 8-Port Gigabit Ethernet Shared Port Adapter, Version 2	SPA-8X1GE-V2	3.4
Cisco 8-Port 10BASE-T/100BASE-TX Fast Ethernet Shared Port Adapter, Version 2	SPA-8X1FE-TX-V2	3.4
Cisco 8-Port 100BASE-TX Fast Ethernet Shared Port Adapter	SPA-8XFE-TX	3.3
Cisco 10-Port Gigabit Ethernet Shared Port Adapter, Version 2	SPA-10X1GE-V2	3.4
Cisco 1-Port Ten Gigabit Ethernet Shared Port Adapter, Version 2	SPA-1X10GE-L-V2	3.4
Cisco 5-Port Gigabit Ethernet Shared Port Adapter with SFP optics	SPA-5X1GE	3.2
Cisco 10-Port Gigabit Ethernet Shared Port Adapter with SFP optics	SPA-10X1GE	3.2
Cisco 1-Port 10 Gigabit Ethernet Shared Port Adapter with XFP optics	SPA-1XTENGE-XFP	3.2
Cisco 2-Port Gigabit Ethernet Shared Port Adapter, Version 2	SPA-2X1GE-V2	3.4.1
Cisco XR 12000 Series Router T3 and E3 Interface Modules and SPAs
2-port Channelized T3 to DS0 Shared Port Adapter	SPA-2XCT3/DS0	3.3
4-port Channelized T3 to DS0 Shared Port Adapter	SPA-4XCT3/DS0	3.3
2-port Clear Channel T3/E3 Shared Port Adapter	SPA-2XT3/E3	3.3
4-port Clear Channel T3/E3 Shared Port Adapter	SPA-4XT3/E3	3.3
Cisco XR 12000 Series Router Channelized Line Cards
Cisco 1-Port Channelized OC-48 line card	CHOC48/DS3-SR-SC	3.6
Cisco 1-Port Channelized OC-12 line card	CHOC12/DS1-SR-SC	3.8
Cisco 4-Port Channelized OC-12 line card	4CHOC12/DS3-I-SCB	3.8

Software Compatibility

Cisco IOS XR Software Release 3.9.0 is compatible with the following Cisco XR 12000 Series Router systems:

•Cisco XR 12004 Router

•Cisco XR 12006 Router

•Cisco XR 12010 Router

•Cisco XR 12016 Router

•Cisco  XR 12404 Router

•Cisco XR 12406 Router

•Cisco XR 12410 Router

•Cisco XR 12416 Router

•Cisco XR 12810 Router

•Cisco XR 12816 Router

The following chassis are supported for an existing installed base:

•Cisco 12008 Router

•Cisco 12010 Router

•Cisco 12012 Router

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Note If you are running Cisco IOS XR software on a Cisco XR120xx system with SIP 600, 401, 501, or 601, you must upgrade the fabric. For ROMMON, MBUS, and Fabric Downloader versions, see the "Obtaining Documentation and Submitting a Service Request" section.

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Other Firmware Support

The Cisco XR 12000 Series Router supports the following firmware code:

•Line card (LC)

–Maintenance Bus (MBUS) Agent Software-RAM version 4.4, ROM version 4.4

–ROM Monitor version 17.1

–Fabric Downloader - RAM version 8.0/4.7, ROM version 8.0/4.7 (The ROM version will be the same as the RAM version if upgraded.)

For Engine 3 line card:

–Maintenance Bus (MBUS) Agent Software-RAM version 4.5, ROM version 4.5

–ROM Monitor version 17.1

–Fabric Downloader - RAM version 8.0, ROM version 8.0 (The ROM version will be the same as the RAM version if upgraded.)

For Engine 5 line card:

–Maintenance Bus (MBUS) Agent Software-RAM version 4.5, ROM version 4.5

–ROM Monitor version 17.1

–Fabric Downloader - RAM version 6.1, ROM version 4.7 (The ROM version will be the same as the RAM version if upgraded.)

•Route processors (RPs)

For Performance Route Processor 2 (PRP-2):

–Maintenance Bus (MBUS) Agent Software-RAM version 4.5, ROM version 4.5

– ROM Monitor version 1.23

For Performance Route Processor 3 (PRP-3):

–Maintenance Bus (MBUS) Agent Software-RAM version 4.5, ROM version 4.5

– ROM Monitor version 1.4.0

Requirement of Cisco IOS Image Level and Boot Helper Version for Migration

If you are migrating from Cisco IOS to Cisco IOS XR software on the Cisco XR 12000 Series Router, you must have the following minimum Cisco IOS image level and Boothelper version to support Release 3.9.0:

•Cisco IOS image—12.0(32)S

•Cisco IOS Boothelper—12.0(32)S0a

If you have an earlier version of this system, you must upgrade to the minimum supported level before performing a migration. Otherwise, your migration fails. For more information, see the Migrating from Cisco IOS to Cisco IOS XR Software on the Cisco XR 12000 Series Router document.

Minimum Firmware Requirement

•After completing an RMA the newly-received linecard may not have appropriate IOS XR firmware installed.

Depending on the type of firmware that needs upgrading the symptoms can vary as follows:

–ROMMON needs updating the linecard will not boot up

–MBUS needs updating the linecard may fail to boot or keeps reloading

–Fabric Loader needs updating the linecard will take long time to boot

–FPD needs updating the linecard experiences packet corruption / drop

---

Note The FPD PIE has to be installed in order to upgrade to the latest FPD image. Refer to the Upgrading FPD on Cisco IOS XR Software chapter of the Cisco IOS XR System Management Command Reference for the Cisco XR 12000 Router online.

---

RMA Card Firmware Upgrade Procedure:

To upgrade the fabric-downloader, ROMMON, Mbus, and current field-programmable device (FPD) image package on a single RMA linecard or on all modules installed in a router, use the upgrade all command in administration EXEC mode.

upgrade all location {node-id | all} [force]

Where location node-id specifies that all all firmware images (ROM, MBUS, Fabric Downloader and FPD) will be upgraded on the physical location of the line card received through RMA defined by the node-id argument. The node-id argument is entered in the rack/slot/module notation.

The upgrade all location all command upgrades all all firmware images (ROM, MBUS, Fabric Downloader and FPD) on all line cards (LCs) that are installed in the router.

For an RMA linecard firmware upgrade you'll want to use the upgrade all location node-id command.

The optional force parameter skips the version check and forces an upgrade.

•The list of minimum supported firmware versions is available online in this matrix:

http://www.cisco.com/web/Cisco_IOS_XR_Software/pdf/GSR12000_Software_Firmware_Compatibility_Matrix.pdf

•Links to PDF copies of the IOS XR Firmware Upgrade Guides are available online here:

http://www.cisco.com/web/Cisco_IOS_XR_Software/index.html

Here's the link to the Cisco Systems IOS XR Firmware Upgrade Guide For CRS-1 and XR12000:

http://www.cisco.com/web/Cisco_IOS_XR_Software/pdf/IOSXRFirmwareUpgradeGuide.pdf

•Refer to the Hardware Redundancy and Node Administration Commands on Cisco IOS XR Software chapter of the Cisco IOS XR System Management Command Reference for the Cisco XR 12000 Router for the upgrade all command syntax:

http://www.cisco.com/en/US/docs/routers/xr12000/software/xr12k_r3.9/system_management/command/reference/yr39xr12k_chapter7.html

Determining Your Software Version

To determine the version of Cisco IOS XRsoftware running on your router, log into the router and enter the show version command:

---

Step 1 Establish a Telnet session with the router.

Step 2 Enter the show version command from EXEC mode.

RP/0/0/CPU0:PE6_C12406# show version

Cisco IOS XR Software, Version 3.9.0[00]

Copyright (c) 2009 by Cisco Systems, Inc.

ROM: System Bootstrap, Version 12.0(20090226:235859) [rtauro-sw30346-33S 1.23dev(0.35)] 
DEVELOPMENT SOFTWARE

Copyright (c) 1994-2009 by cisco Systems,  Inc.

P1 uptime is 22 hours, 50 minutes

System image file is "disk0:c12k-os-mbi-3.9.0/mbiprp-rp.vm"

cisco 12410/PRP (7457) processor with 2097152K bytes of memory.

7457 processor at 1266Mhz, Revision 1.2

2 Cisco 12000 Series Performance Route Processors

1 Cisco 12000 Series SPA Interface Processor-601/501/401

4 Cisco 12000 Series SPA Interface Processor-600

2 1 Port ISE Packet Over SONET OC-48c/STM-16 Controllers (2 POS)

6 Management Ethernet

12 PLIM_QOS

12 SONET/SDH

12 Packet over SONET/SDH

6 TenGigE

10 GigabitEthernet/IEEE 802.3 interface(s)

1016k bytes of non-volatile configuration memory.

1000432k bytes of disk0: (Sector size 512 bytes).

65536k bytes of Flash internal SIMM (Sector size 256k).

Configuration register on node 0/0/CPU0 is 0x2

Boot device on node 0/0/CPU0 is disk0:

Package active on node 0/0/CPU0:

c12k-mcast, V 3.9.0[00], Cisco Systems, at disk0:c12k-mcast-3.9.0

    Built on Mon Dec 14 01:31:08 PDT 2009

    By sjc-lds-524 in /auto/srcarchive3/production/3.9.0/c12k/workspace for c4.2.1-p0

c12k-mpls, V 3.9.0[00], Cisco Systems, at disk0:c12k-mpls-3.9.0

    Built on Mon Dec 14 01:30:53 PDT 2009

    By sjc-lds-524 in /auto/srcarchive3/production/3.9.0/c12k/workspace for c4.2.1-p0

c12k-rout, V 3.9.0[00], Cisco Systems, at disk0:c12k-rout-3.9.0

    Built on Mon Dec 14 01:36:01 PDT 2009

    By sjc-lds-524 in /auto/srcarchive3/production/3.9.0/c12k/workspace for c4.2.1-p0

c12k-lc, V 3.9.0[00], Cisco Systems, at disk0:c12k-lc-3.9.0

    Built on Mon Dec 14 01:35:45 PDT 2009

    By sjc-lds-524 in /auto/srcarchive3/production/3.9.0/c12k/workspace for c4.2.1-p0

c12k-fwdg, V 3.9.0[00], Cisco Systems, at disk0:c12k-fwdg-3.9.0

    Built on Mon Dec 14 01:35:19 PDT 2009

    By sjc-lds-524 in /auto/srcarchive3/production/3.9.0/c12k/workspace for c4.2.1-p0

c12k-admin, V 3.9.0[00], Cisco Systems, at disk0:c12k-admin-3.9.0

    Built on Mon Dec 14 01:34:56 PDT 2009

    By sjc-lds-524 in /auto/srcarchive3/production/3.9.0/c12k/workspace for c4.2.1-p0

c12k-base, V 3.9.0[00], Cisco Systems, at disk0:c12k-base-3.9.0

    Built on Mon Dec 14 01:34:26 PDT 2009

    By sjc-lds-524 in /auto/srcarchive3/production/3.9.0/c12k/workspace for c4.2.1-p0

c12k-os-mbi, V 3.9.0[00], Cisco Systems, at disk0:c12k-os-mbi-3.9.0

    Built on Mon Dec 14 01:31:59 PDT 2009

    By sjc-lds-524 in /auto/srcarchive3/production/3.9.0/c12k/workspace for c4.2.1-p0

---

New Features in Cisco IOS XR Software Release 3.9.0

The following sections contain information on new features and enhancements in Cisco IOS XR Software Release 3.9.0:

•New Software Features Supported on all Platforms

•Cisco XR 12000 Series Router-Specific Software Features

•New Hardware Features for the Cisco XR 12000 Series Router

---

Note Cisco Session Border Controller (SBC) is not supported on any platform in Cisco IOS XR Software Release 3.9.0. Cisco IOS XR Software Release 3.7 is the last release that supports SBC.

---

New Software Features Supported on all Platforms

The following new software features in Cisco IOS XR Software Release 3.9.0 are supported on all platforms:

•BGP ASPLAIN Notation

•SFTP Interactive Client

•BGP Prepend ASN into the Path

•SSHv2 Enhancements for RSA Keys

•SFTP Server

•BGP Best External

•BGP Support for Dual AS Configuration for Network AS Migrations

•Hide Local AS support

•RSVP MIB Support

Cisco XR 12000 Series Router-Specific Software Features

The following new features in Cisco IOS XR Software Release 3.9.0 are supported on the Cisco XR 12000 Series Router platform:

•BFD Support for HSRP

•BGP PIC Unipath

•IP Header Compression

–IPHC support on PPP and MLPPP/LFI enabled serial interfaces

–Supported on SPAs (SPA-1xCHOC12/DS0, SPA-1xCHO48/DS3, SPA-1xCHSTM1/OC3, SPA-8xCHT1/E1, SPA-4xT3/E3, SPA-4xCT3/DS0)

•SDH support for dense channelization SPAs (SPA-1xCHOC12/DS0, SPA-1xCHOC48/DS3)

•Link Bundle Enhancements

–Link POS Link Bundles on Engine 3 and Engine 5 line cards

–QoS support for Link Bundles

–TE over VLAN over Ethernet link bundles for Engine 3 and Engine 5 line cards

•Traffic Engineering

–Traffic Engineering Fast Re Route support on Engine 3 and Engine 5 line cards

•Three-Level QoS

–Third grandchild level policy-map supported in the egress facing interfaces

•MPLS IP TTL Propagate Local vs. Forwarded Packets

•MVPN MDT Source Select

•SSO - HSRP

•SSO - VRRP

•BFD Support for VRRP

•VRRP MIB

New Hardware Features for the Cisco XR 12000 Series Router

No new hardware features were introduced inCisco IOS XR Software Release 3.9.0 on the Cisco XR 12000 Series Router.

For detailed information on the shared port adapters (SPAs) and SPA interface processors (SIPs), see the following documents:

•Cisco XR 12000 Series Router SIP and SPA Hardware Installation Guide

•Cisco Interface and Hardware Component Configuration Guide for the Cisco XR 12000 Series Router, Release 3.9

---

Note Contact gsr-pm@cisco.com for hardware availability.

---

Important Notes

•Default timestamp setting—The timestamp prompt that precedes console output is enabled by default in Cisco IOS XR Release 3.8. To disable the timestamp prompt, use the no service timestamp command. For more information, refer to the Cisco IOS XR System Management Command Reference for the Cisco XR 12000 Series Router.

•From Cisco IOS XR Software Release 3.6.0, WRED statements are collapsed in that if different random-detect statements using the same match types (EXP, DSCP, Prec, and so forth) are entered with identical minimum and maximum threshold values, a single configuration line is shown in the output of show running config. This reduces the length of the configuration but creates a problem with backward compatibility with previous releases. In such a situation, on rollback, the QoS policy is rejected and must be manually entered again.

Configuration prior to Cisco IOS XR Software Release 3.6.0:

Policy-map wred_example

   Class class-default

       random-detect exp 0 384 packets 484 packets

       random-detect exp 1 384 packets 484 packets

       random-detect exp 2 384 packets 484 packets

       random-detect exp 3 484 packets 584 packets

       random-detect exp 4 484 packets 584 packets

       random-detect discard-class 0 384 packets 484 packets

      random-detect discard-class 1 384 packets 484 packets

      random-detect discard-class 2 484 packets 584 packets

      bandwidth remaining percent 20

Cisco IOS XR Software Release 3.6.0 and later releases:

policy-map wred_example

 class class-default

  random-detect exp 0,1,2 384 packets 484 packets

  random-detect exp 3,4 484 packets 584 packets

  random-detect discard-class 0,1 384 packets 484 packets

  random-detect discard-class 2 484 packets 584 packets

  bandwidth remaining percent 20

 !

 end-policy-map

!

end 

In Cisco IOS XR Software Release 3.6.0 and later releases, the implicitly assigned QoS class class-default must have at least 1 percent bandwidth made available to it. This can be done either by assigning at least 1 percent explicitly (bandwidth remaining percent 1) or by ensuring that the total bandwidth assigned to all other classes in the policy is a maximum of 99 percent, leaving 1 percent available for the class-default. A QoS policy that does not have any bandwidth for class-default is rejected when upgrading to Cisco IOS XR Software Release 3.6.0 or later releases.

•Country-specific laws, regulations, and licences—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.

•Migrating from Cisco IOS to Cisco IOS XR Software on the Cisco XR 12000 Series Router—When migrating a Cisco XR 12000 Series Router from Cisco IOS to Cisco IOS XR software, follow the instructions provided in Migrating from Cisco IOS to Cisco IOS XR Software on the Cisco XR 12000 Series Router.

•Card, fan controller, and RP removal—For all card removal and replacement (including fabric cards, line cards, fan controller, and RP) follow the instructions provided by Cisco to avoid impact to traffic. See theCisco IOS XR Getting Started Guide for the Cisco XR 12000 Series Router for procedures.

•Exceeding Cisco testing—If you intend to test beyond the combined maximum configuration tested and published by Cisco, contact your Cisco Technical Support representative to discuss how to engineer a large-scale configuration maximum for your purpose.

•More power required for Cisco SIP line cards (SIP-401/501/600/601) on the Cisco XR 12000 Series Router—These line cards draw more power than previous generation 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# admin

RP/0/0/CPU0:router# show environment power-supply table

48V       Current

R/S/I     Module      (V)           (A)

0/24/*    PEM1         54             4

          PEM2         53             4

0/25/*    PEM1         54             4

          PEM2         53             4

Total Power Supplies:                  3200W

    Redundant Power Supplies:              1600W

    Worst Case Power Used:                  621W

    Current Power Used:                     428W

    Current Redundant Power Available:     1172W

    Current Total Power Available:         2772W

    Worst Case Redundant Power Available:   979W

    Worst Case Total Power Available:      2579W

PID                  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

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 down for replacement without impact.

---

Note No alerts are issued if more cards are inserted than the PEMs can support. It is your responsibility to determine your power budget for the chassis before making any changes to it. Exceeding the power budget may result in the PEM being overloaded and cards powering down due to insufficient power being provided.

---

•Per-interface Internet Control Message Protocol (ICMP) disable feature is not supported on the Cisco XR 12000 Series Router.

•Online Diagnostics is not supported on the Cisco XR 12000 Series Router—If you execute the diagnostic command, an error appears stating that there is no online diagnostics process running on the router.

•The rp mgmtethernet forwarding command is not supported on the Cisco XR 12000 Series Router.

•mpls traffic engineering igp-intact command—This command must be used only when policy based tunnel selection is configured for all tunnels originating on the device.

Minimum Flash Disk Requirements When Upgrading to Release 3.9.0

Cisco IOS XR Software Release 3.9.0 requires a 2-GB Flash Disk as a minimum. If your Cisco XR 12000 Series Router currently uses a 1-GB Flash Disk, you must upgrade it to 2-GB before upgrading to Cisco IOS XR Software Release 3.9.0. The PCMCIA 1-GB Flash Disk was the default size for the Cisco XR 12000 Series Router running Cisco IOS XR Software Release 3.6 and earlier.

In Cisco IOS XR Software Release 3.6 and later releases, disk partitioning is supported. Partitioning of a 2-GB disk is possible but not required. Partitioning of a 4-GB disk is required.

A 4-GB Flash Disk can be installed instead of the 2-GB for greater disk storage.

To upgrade from a 1-GB flash disk to a 2-GB or greater flash disk, refer to the Flash Disk Upgrade Tasks link on the followingCisco XR 12000 Series Router Installation and Upgrade URL:

http://www.cisco.com/en/US/products/ps6342/prod_installation_guides_list.html

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.

This section contains caveats that are generic to the Cisco IOS XR Release 3.9.0 software and those specific to the Cisco XR 12000 Series Router.

Cisco IOS XR Caveats

The following open caveats apply to Cisco IOS XR Software Release 3.9.0 and are not platform specific:

•CSCsy98575

Basic Description:

%SECURITY-LOCALD-3-LWA_ADD_FAIL error when secret is added for a user

Symptom:

In rare circumstances, when a user tries to configure username and secret password, the configuration succeeds, but the following console message is generated, which seems to suggest that the configuration did not succeed:

"% Failed to commit one or more configuration items. Please issue show configuration 
failed from this session to view the errors"

Conditions:

No specific trigger is identified. This is an issue that has been observed a few times over several months.

Workaround:

None. Although the configuration failure message is reported, the operation is successful. There is no operational impact of this issue.

Recovery:

None. Only a console message appears, and there is no functional impact.

•CSCta71930

Basic Description:

lpts_pa tracebacks after clear cef on line card

Symptom:

An error log is printed along with the traceback when a message send to the BCDL agent fails.

Conditions:

The BCDL agent has gone down, thus the message send is failing. This is a very rare scenario and would not happen under normal circumstances.

Workaround:

Not required. BCDL restarts automatically.

Further Problem Description:

The error message says that the BCDL agent has failed. This would not cause an error in lpts as the BDCL process restarts automatically.

•CSCtc63005

Basic Description:

OSPFv3 default-information originate does not work in 6PE

Symptom:

OSPFv3 might fail to originate a default route when the default-information originate command is configured and there is a default route of ::/0 present in the routing table.

Conditions:

The problem happens when the default route in the RIB is received from a 6PE peer, and the next hop address is a v4-mapped-v6 address.

Workaround:

Use route-policy to specify the next hop address.

•CSCtd10608

Basic Description:

Telnet session does not return the prompt/control after show commands

Symptom:

When the terminal length is set to zero and the show commands are executed for continuous output, the telnet session does not return the command router prompt and seems to be hanging. However, only the last few lines of the show command output are not displayed.

Pressing the Enter key displays one line of output. Pressing the spacebar advances one character on the output device. When the next command is entered, the previous missing lines are displayed along with the command prompt. The last few lines of the new output are not displayed. You can type the new commands, and they are executed. However, you do not see the typed commands.

Conditions:

This behavior is not exclusively related to long outputs. It can occur with shorter outputs from the ADMIN plane as well as the EXEC plane when the terminal length 0 command is entered for the continuous output display. The trigger is a timing issue and manifests itself at different loads and activities on the router.

Workaround:

Exit the current session and re-login which gives you a new TTY session. Also, issuing the process restart devc-vty command should clear all of the sessions.

•CSCtd17516

Basic Description:

CLI over XML configuration fails

Symptom:

CLI over XML configuration request fails.

Conditions:

This happens when both of the following conditions are met:

–The CLI command lines in an XML request exceed 200 lines or more.

–The CLI commands are split internally in middle of sub-mode.

Workaround:

You do not need to use CLI over XML for configuration commands that already support XML natively. Split the commands into multiple requests, so the command lines of each request are less than 200 lines.

Recovery:

None.

•CSCtd24567

Basic Description:

Connected route missing from routing table after an APS flap and RP failover

Symptom:

Connected route is missing from the routing table for APS protected interfaces after an APS switchover that is immediately followed by an RP failover.

Conditions:

This issue occurs when an APS switchover is immediately followed by an RP failover.

Workaround:

None.

Recovery:

Reload the line card associated with the connected route.

•CSCtd64030

Basic Description:

SSM does not support static map for groups other than 232.0.0.0/8

Symptom:

Cisco IOS XR does not support configurable static SSM-map ranges outside the default IANA range of 232.x.x.x/8. This applies to both IGMP version 2 and version 3 hosts.

Conditions:

This issue does not have any specific conditions.

Workaround:

None.

•CSCtd65349

Basic Description:

show route backup only shows 50 entries

Symptom:

The show route backup command only lists the first 50 entries.

Conditions:

This issue occurs with the use of the show route backup command.

Workaround:

Use the show route summary detailed command which shows the correct number of backup routes.

Caveats Specific to the Cisco XR 12000 Series Router

The following open caveats are specific to the Cisco XR 12000 Series Router:

•CSCta03608

Basic Description:

Counter mismatch between Rx and Tx side for the FR subinterface

Symptom:

Output of show interface main interface and show interface sub interface may not match. Total subinterface counts (for all sub interfaces under the main interface) may be larger on the egress side or smaller on the ingress side.

Conditions:

A mismatch is seen between FR subinterface and main interface counts. A mismatch occurs when the packet rate becomes more than what the queuing asic can handle. This results in a queuing asic drop and a difference in main interface and sub interface counts.

Workaround:

None. This is an expected behavior.

Further Problem Description:

FR subinterface counters are taken from the engine, while main interface counters are taken from the SPA. This can result in a mismatch of counters at the sub interface and main interface levels.

•CSCta86699

Basic Description:

Entity goes missing after RP Failover on the 16 slot of the Cisco XR 12000 Series Router

Symptom:

Some subentities in the Entity-MIB go missing after an RP failover. This condition occurs intermittently on a 16 slot Cisco XR 12000 Series Router chassis.

Conditions:

With an RP failover on the 16 slot Cisco XR 12000 Series Router, there is an intermittent condition in which subentities go missing.

Workaround:

None.

Further Problem Description:

Some subentities (for example, sensors or submodules) that were in the Entity-MIB before the RP failover are not present after the failover.

Recovery:

A forced failover or restart of the invmgr process should resolve the condition.

•CSCtc57565

Basic Description:

CBQOS MIB stats on 8*FE SPA jump 2**46bits ahead

Symptom:

An abnormal jump in class match statistics of the QoS policy occurs. The abnormal byte counters appear in both SNMP polling and in show policy-map interface < > input.

The problem has been seen only on the inbound QoS classification statistics.This issue was originally found when running Cisco IOS XR Release 3.8.0 on Engine 5 LC on the Cisco XR 12000 Series Router and using 8*FE SPA.

Conditions:

Analysis of incorrect counters shows that the bit positions beyond 46 are being set incorrectly to account for rollovers.

Workaround:

Removing 2**46 from abnormal volumes of traffic or ignoring higher order bits from 47th bit position in the counters could be a workaround. Data is not lost with this workaround.

Recovery:

Issuing the clear qos counters interface < ifname > command recovers the interface from this issue. The side effect of this is clearing of all counters.

Resolved Cisco IOS XR Software PSIRT-Related Caveats

•CSCti62211

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

Cisco IOS XR software is installed and activated from modular packages, allowing specific features or software patches to be installed, upgraded, or downgraded without affecting unrelated processes. Software packages can be upgraded or downgraded on all supported card types, or on a single card (node).

Software packages are installed from package installation envelope (PIE) files that contain one or more software components.

The following URL contains links to information about how to upgrade Cisco IOS XR software:

http://www.cisco.com/web/Cisco_IOS_XR_Software/index.html

---

Note Cisco IOS XR Software Release 3.9.0 requires a 2-GB Flash Disk as a minimum. Therefore, you must upgrade an existing PCMCIA 1-GB Flash Disk to 2 GB before upgrading to Cisco IOS XR Software Release 3.9.0. For more information, see the "Minimum Flash Disk Requirements When Upgrading to Release 3.9.0" section.

---

Troubleshooting

For information on troubleshooting Cisco IOS XR software, refer to the Cisco IOS XR Troubleshooting Guide for the Cisco XR 12000 Series Router and the Cisco IOS XR Getting Started Guide for the Cisco XR 12000 Series Router.

Related Documentation

The most current Cisco XR 12000 Series Router hardware documentation is located at the following URL:

http://www.cisco.com/en/US/products/ps6342/prod_installation_guides_list.html

The Cisco IOS XR software documentation set includes the Cisco IOS XR software configuration guides and command references, as well as a getting started guide. See About Cisco IOS XR Software Documentation for Release 3.9 for a list of Cisco IOS XR Release 3.9.0 software documentation.

The most current Cisco XR 12000 Series Router software documentation is located at the following URL:

http://www.cisco.com/en/US/products/ps6342/tsd_products_support_series_home.html

Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, submitting a service request, and gathering additional information, 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

Subscribe to the What's New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service and Cisco currently supports RSS Version 2.0.

This document is to be used in conjunction with the documents listed in the "Related Documentation" section.

Cisco and the Cisco Logo are trademarks of Cisco Systems, Inc. and/or its affiliates in the U.S. and other countries. A listing of Cisco's trademarks can be found at 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. (1005R)

© 2009 Cisco Systems, Inc. All rights reserved.