Table Of Contents
Release Notes for Cisco IOS XR Software Release 3.7
Key Changes from Previous Releases to Cisco IOS XR 3.7.0
Determining Your Software Version
New Software Features in Cisco IOS XR Software Release 3.7.0
Cisco CRS-1 and Cisco XR 12000 Series Router Platforms
Features Specific to the Cisco CRS-1 Router
Features Specific to the Cisco XR 12000 Series Router
New Hardware Features Supported in Cisco IOS XR
Minimum Flash Disk Requirements When Upgrading to Release 3.7
Cisco CRS-1 and Cisco XR 12000 Series Router Caveats
Caveats Specific to the Cisco CRS-1 Router
Caveats Specific to the Cisco XR 12000 Series Router
Upgrading Cisco IOS XR Software
Obtaining Documentation and Submitting a Service Request
Release Notes for Cisco IOS XR Software Release 3.7
October 6, 2008
Cisco IOS XR Software Release 3.7.0
Text Part Number OL-15859-02
Note
For information on Cisco IOS XR Software Release 3.7.0, see the "Important Notes" section.
Key Changes from Previous Releases to Cisco IOS XR 3.7.0
1.
The PCMCIA 1GB Flash Disk is the default flash disk size for CRS IOS XR 3.6. However, the PCMCIA 2GB Flash Disk is required for 3.7. Customers must upgrade the PCMCIA 1GB Flash Disk on their Cisco CRS-1 to 2GB before upgrading from IOS XR 3.6 to IOS XR 3.7. For more information, see the "Minimum Flash Disk Requirements When Upgrading to Release 3.7" section.
2.
The Cisco Session Border Controller (SBC) is not supported on the Cisco CRS-1 platform, For more information, see the "Features Specific to the Cisco CRS-1 Router" section.
3.
There are new ROMMON versions for 3.7. For more information, see the "Other Firmware Support" section.
Note
You can find the most current Cisco IOS XR software documentation on the World Wide Web at http://www.cisco.com/en/US/partner/products/ps5845/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" section on page 25.
These release notes describe the features provided in the Cisco IOS XR Software Release 3.7.0 and are updated as needed.
For a list of software caveats that apply to Cisco IOS XR Software Release 3.7.0, see the "Caveats" section. The caveats are updated for every release and are described 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:
•
New Features and Enhancements
•
Upgrading Cisco IOS XR Software
•
Obtaining Documentation and Submitting a Service Request, page 25
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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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), Layer 2 Virtual Private Network (L2VPN), 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. Cisco Carrier Routing System (CRS-1) router supports Bidirectional Protocol Independent Multicast (BIDIR-PIM).
•
Quality of Service (QoS)—Supports rich QoS mechanisms including policing, marking, queuing, random and hard traffic dropping, and shaping. Additionally, Cisco IOS XR supports modular QoS command-line interface (MQC). MQC is used to configure various QoS features on various Cisco platforms.
•
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 messaging.
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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 control plan 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 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 (Prior to 3.7.0, supported on the Cisco XR 12000 Series Router only. With 3.7.0 this feature is supported on the CRS-1).
•
IPv6 VPN over MPLS (6VPE) support—Delivers IPv6 VPN over MPLS (IPv6) VPN traffic over an IPv4 or MPLS core with 6VPE support (Prior to 3.7.0, supported on the Cisco XR 12000 Series Router only. With 3.7.0 this feature is supported on the CRS-1).
•
6VPE over L2TPv3 support—Delivers IPv6 VPN traffic over L2TPv3 core with 6VPE support (Cisco XR 12000 Series Router only). This feature is also available on Cisco IOS software.
•
Enhanced core competencies:
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IP fast convergence with Fast Reroute (FRR) support for Intermediate System-to-Intermediate System (IS-IS)
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Traffic engineering support for unequal load balancing
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Path Computation Element (PCE) capability for traffic engineering
•
Firewall Services—Seamless insertion of Firewall Services in the data path with Virtual Firewall support on Multi Service Blade (XR-12K-MSB) for the Cisco XR 12000 Series Router.
•
VPN IPSec Aggregation —The IPSec Aggregation feature is provided through SPA-IPSEC-2G-2 card. The IPSec Aggregation feature allows you to terminate up to 64k VPN tunnels, both site-to-site and remote access, if four VPN SPAs are used.
•
Voice Video—Voice Video interconnect between providers with Session Border Controller (SBC) on the Cisco XR 12000 Series Router.
•
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 various platforms for Cisco IOS XR Software Release 3.7.0, see the "New Features and Enhancements" section in this document.
System Requirements
Cisco IOS XR Software Release 3.7.0 supports the following platforms:
To determine the software versions or levels of your current system, see the "Determining Your Software Version" section.
Cisco CRS-1
This section describes the system requirements for Cisco IOS XR Software Release 3.7.0 supported on Cisco CRS-1 routers. The system requirements include the following information:
To determine the software versions or levels of your current system, see Determining Your Software Version.
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 3.7.0 features. Table 1 lists the Cisco IOS XR software feature set matrix (PIE files) and associated filenames available for the Cisco IOS XR Software Release 3.7.0 supported on the Cisco CRS-1 router.
Table 1 Cisco CRS-1 Supported Feature Sets
(Cisco IOS XR Software Release 3.7.0 PIE Files) Feature Set Filename Description Composite PackageCisco IOS XR IP Unicast Routing Core Bundle
comp-hfr-mini.pie-3.7.0
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-3.7.0
Contains the required core packages including OS, Admin, Base, Forwarding, Modular Services Card, Routing, SNMP Agent, and Alarm Correlation.
Optional Individual Packages1Cisco IOS XR Manageability Package
hfr-mgbl-p.pie-3.7.0
Cisco IOS XR MPLS Package
hfr-mpls-p.pie-3.7.0
MPLS-TE,4 LDP,5 MPLS Forwarding, MPLS OAM,6 LMP,7 OUNI,8 RSVP,9 and Layer-2 VPN and Layer-3 VPN.
Cisco IOS XR Multicast Package
hfr-mcast-p.pie-3.7.0
Multicast Routing Protocols (PIM, MSDP,10 IGMP,11 Auto-RP), Tools (SAP, MTrace), and Infrastructure (MRIB,12 MURIB13 , MFWD14 ), and BIDIR-PIM.15
Cisco IOS XR Security Package
hfr-k9sec-p.pie-3.7.0
Support for Encryption, Decryption, IPSec,16 SSH,17 SSL,18 and PKI19 (Software based IPSec support—maximum of 500 tunnels)
Cisco IOS XR Documentation Package
hfr-doc.pie-3.7.0
Man pages for Cisco IOS XR CLI commands
Cisco IOS XR FPD Package
hfr-fpd.pie-3.7.0
Firmware for Fixed PLIM20 and SPA21 modules as well as ROMMON22 images for CRS chassis.
Cisco IOS XR Diagnostic Package
hfr-diags-p.pie-3.7.0
Diagnostic utilities for Cisco IOS XR routers.
1 Packages are installed individually
2 Common Object Request Broker Architecture
3 Extensible Markup Language
4 MPLS Traffic Engineering
5 Label Distribution Protocol
6 Operations, Administration, and Maintenance
7 Link Manager Protocol
8 Optical User Network Interface
9 Resource Reservation Protocol
10 Multicast Source Discovery Protocol
11 Internet Group Management Protocol
12 Multicast Routing Information Base
13 Multicast-Unicast RIB
14 Multicast forwarding
15 Bidirectional Protocol Independent Multicast
16 IP Security
17 Secure Shell
18 Secure Socket Layer
19 Public-key infrastructure
20 Physical layer interface module
21 Shared port adapters
22 ROM monitor
Table 2 lists the Cisco CRS-1 TAR files.
Memory Requirements
CautionIf you remove the media in which the software image or configuration is stored, the router may become unstable and fail.
The minimum memory requirements for Cisco CRS-1 routers running Cisco IOS XR Software Release 3.7.0 consist of the following:
•
4-GB memory on the route processors (RPs)
•
2-GB memory on the modular services cards (MSCs)
•
2-GB PCMCIA Flash Disk
Note
Customers must upgrade the PCMCIA 1GB Flash Disk on their Cisco CRS-1 before upgrading from IOS XR 3.6 to IOS XR 3.7. Refer to the "Minimum Flash Disk Requirements When Upgrading to Release 3.7" section for upgrade details.
Hardware Supported
Cisco IOS XR Software Release 3.7.0 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" section.
Table 3 lists the supported hardware components on the Cisco CRS-1 and the minimum required software versions. For more information, see the "Other Firmware Support" section.
Software Compatibility
Cisco IOS XR Software Release 3.7.0 is compatible with the following Cisco CRS-1 systems:
•
Cisco CRS-1 4-Slot Line Card Chassis
•
Cisco CRS-1 8-Slot Line Card Chassis
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Cisco CRS-1 16-Slot Line Card Chassis
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Cisco CRS-1 Multi-Chassis
Other Firmware Support
The Cisco CRS-1 router supports the following firmware code:
•
The minimum ROMMON version required for this release is 1.49. For more information about ROMMON specifications, see http://www.cisco.com/web/Cisco_IOS_XR_Software/index.html.
•
The minimum CPUCNTRL version required for this release is 2.07. For more information about CPU controller bits, see http://www.cisco.com/en/US/products/ps5845/products_configuration_guide_chapter09186a00807e018c.html#wp68039.
Cisco XR 12000 Series Router
This section describes the system requirements for Cisco IOS XR Software Release 3.7.0 supported on the Cisco XR 12000 Series Router. The system requirements include the following information:
To determine the software versions or levels of your current system, see "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 3.7.0 features. Table 4 lists the Cisco IOS XR software feature set matrix (PIE files) and associated filenames available for Cisco IOS XR Software Release 3.7.0, supported on the Cisco XR 12000 Series Router.
Table 4 Cisco XR 12000 Series Router Supported Feature Set (Cisco IOS XR Software
Release 3.7.0 PIE Files) Feature Set Filename Description Composite PackageCisco IOS XR IP Unicast Routing Core Bundle
c12k-mini.pie-3.7.0
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-3.7.0
Contains the required core packages including OS, Admin, Base, Forwarding, and Routing SNMP Agent, and Alarm Correlation.
Optional Individual Packages1Cisco IOS XR Manageability Package
c12k-mgbl.pie-3.7.0
CORBA2 agent, XML Parser, and HTTP server packages.
Cisco IOS XR MPLS Package
c12k-mpls.pie-3.7.0
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-3.7.0
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-3.7.0
Support for Encryption, Decryption, IPSec16 , SSH,17 SSL,18 and PKI.19
Software based IPSec support: maximum of 500 tunnels or Hardware based IPSec: maximum of 64K tunnels using the SPA-IPSEC-2G-2Cisco IOS XR Standby RP Boot Image
mbiprp-rp.vm-3.7.0
Support for booting the Standby RP on a Cisco XR 12000 Series Router.
Cisco IOS XR Session Border Controller Package
c12k-sbc.pie-3.7.0
Session Border Controller Package for a Cisco XR 12000 Series Router.
Cisco IOS XR Service IPsec Controller Package
c12k-ipsec-service.pie-3.7.0
Support for service-ipsec and service-gre interfaces in Cisco IOS XR software.
Cisco IOS XR Firewall Package
c12k-firewall.pie-3.7.0
Support for Virtual Firewall (vFW) on a Cisco XR 12000 Series Router.
Cisco IOS XR Documentation Package
c12k-doc.pie-3.7.0
Man pages for Cisco IOS XR CLI commands.
Cisco IOS XR FPD Package
c12k-fpd.pie-3.7.0
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-3.7.0
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 5 lists the Cisco XR 12000 Series Router TAR files.
Memory Requirements
CautionIf you remove the media in which the software image or configuration is stored, the router may become unstable and fail.
The minimum memory requirements for Cisco XR 12000 Series Routers running Cisco IOS XR Software Release 3.7.0 consist of the following:
•
2-GB route memory on Performance Route Processor 2 (PRP-2)
Note
4-GB route memory on PRP-2 is required if IPSec tunnel scale of 64K is planned.
•
2-GB ATA flash storage on PRP-2
•
1-GB line card route memory on all Engine 3 line cards
•
1-GB line card memory on all Engine 5-based SPA interface processors (SIPs)
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The default route memory on the 12000-SIP-600 is 1 GB.
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The default route memory on the 12000-SIP-401, 501, and 601 is 2 GB.
Note
The performance route processor 1 (PRP-1) is not supported in production environments.
•
2-GBPCMCIA Flash Disk
Note
Customers must upgrade the PCMCIA 1GB Flash Disk on their Cisco XR 12000 Series Router before upgrading from IOS XR 3.6 to IOS XR 3.7. Refer to the "Minimum Flash Disk Requirements When Upgrading to Release 3.7" section for upgrade details.
Hardware Supported
Cisco IOS XR Software Release 3.7.0 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 6 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.


