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
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Note
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:
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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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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)Cisco 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.
Cisco 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
Caution
The minimum memory requirements for Cisco CRS-1 routers running Cisco IOS XR Software Release 3.7.0 consist of the following:
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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:
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Other Firmware Support
The Cisco CRS-1 router supports the following firmware code:
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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)Cisco 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.
Cisco 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
Caution
The minimum memory requirements for Cisco XR 12000 Series Routers running Cisco IOS XR Software Release 3.7.0 consist of the following:
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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.
Software Compatibility
Cisco IOS XR Software Release 3.7.0 is compatible with the following Cisco XR 12000 Series Router systems:
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The following chassis are supported for an existing installed base:
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Other Firmware Support
The Cisco XR 12000 Series Router supports the following firmware:
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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 Boot Helper version to support Release 3.7.0:
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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.
Determining Your Software Version
To determine the version of Cisco IOS XR software running on your router, log in to the router and enter the show version command:
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RP/0/RP0/CPU0:router# show versionCisco CRS-1
On the Cisco CRS-1, you should see a response similar to the following:
Cisco IOS XR Software, Version 3.7.0[00] Copyright (c) 2008 by Cisco Systems, Inc.ROM: System Bootstrap, Version 1.48(20070928:224557) [CRS-1 ROMMON],LKW-2 uptime is 11 hours, 23 minutesSystem image file is "disk0:hfr-os-mbi-3.7.0/mbihfr-rp.vm"cisco CRS-16/S (7457) processor with 4194304K bytes of memory.7457 processor at 1197Mhz, Revision 1.220 Packet over SONET/SDH network interface(s) 20 SONET/SDH Port controller(s)4 Ethernet/IEEE 802.3 interface(s)32 GigabitEthernet/IEEE 802.3 interface(s) 1019k bytes of non-volatile configuration memory.38079M bytes of hard disk.981440k bytes of ATA PCMCIA card at disk 0 (Sector size 512 bytes).Configuration register on node 0/0/CPU0 is 0x102 Boot device on node 0/0/CPU0 is mem:Package active on node 0/0/CPU0:hfr-fpd, V 3.7.0[00], Cisco Systems, at disk0:hfr-fpd-3.7.0Built on Mon Dec 17 01:23:21 PST 2007By edde-bld1 in /auto/srcarchive2/production/3.7.0/hfr/workspace for c2.95.3-p8Cisco XR 12000 Series Router
On the Cisco XR 12000 Series Router, you should see a response similar to the following:
Cisco IOS XR Software, Version 3.7.0[00] Copyright (c) 2008 by Cisco Systems, Inc.ROM: System Bootstrap, Version 12.0(20071023:043238) [sunnaik-rommon_hang 1.20] RELEASE SOFTWARE Copyright (c) 1994-2007 by cisco Systems, Inc.1 uptime is 37 minutesSystem image file is "disk0:c12k-os-mbi-3.7.0/mbiprp-rp.vm"cisco 12410/PRP (7457) processor with 3670016K bytes of memory.7457 processor at 1266Mhz, Revision 1.13 Cisco 12000 Series SPA Interface Processor-601/501/4012 Cisco 12000 Series Performance Route Processors9 T3 Port controller(s)204 T1 Port controller(s)5 Packet over SONET/SDH network interface(s)6 SONET/SDH Port controller(s)12 PLIM QoS controller(s)800 Serial network interface(s)6 Ethernet/IEEE 802.3 interface(s)28 Multilink network interface(s)3 Controller for the management of multilink interfaces 20 GigabitEthernet/IEEE 802.3 interface(s) 1018k bytes of non-volatile configuration memory.2000496k bytes of ATA PCMCIA card at disk 0 (Sector size 512 bytes).65536k bytes of Flash internal SIMM (Sector size 256k).Boot device on node 0/0/CPU0 is mem:Package active on node 0/0/CPU0:c12k-mcast, V 3.7.0[00], Cisco Systems, at disk0:c12k-mcast-3.7.0Built on Mon Dec 17 03:31:18 PST 2007By edde-bld1 in /auto/srcarchive2/production/3.7.0/c12k/workspace for c2.95.3-p8
New Features and Enhancements
The following sections contain information on new features and enhancements in Cisco IOS XR Software Release 3.7.0:
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New Software Features in Cisco IOS XR Software Release 3.7.0
Cisco CRS-1 and Cisco XR 12000 Series Router Platforms
Cisco CRS-1 router and Cisco XR 12000 Series Router platforms support the following new features in Cisco IOS XR Software Release 3.7.0:
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Features Specific to the Cisco CRS-1 Router
The following new features in Cisco IOS XR Software Release 3.7.0 are supported only on the Cisco CRS-1 platform:
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Cisco Session Border Controller (SBC) is not supported on the Cisco CRS-1 platform.
Features Specific to the Cisco XR 12000 Series Router
The following new features in Cisco IOS XR Software Release 3.7.0 are supported only on the Cisco XR 12000 Series Router platform:
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Cisco XR 12000 Series Router Services
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New Hardware Features Supported in Cisco IOS XR
The following new hardware features are supported in Cisco IOS XR Software Release 3.7.0:
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For detailed information on the shared port adapters (SPAs) and SPA interface processors (SIPs), see the following documents:
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Important Notes
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RP/0/0/CPU0:router# adminRP/0/0/CPU0:router# show environment power-supply table48V CurrentR/S/I Module (V) (A)0/24/* PEM1 54 4PEM2 53 40/25/* PEM1 54 4PEM2 53 4Total Power Supplies: 3200WRedundant Power Supplies: 1600WWorst Case Power Used: 621WCurrent Power Used: 428WCurrent Redundant Power Available: 1172WCurrent Total Power Available: 2772WWorst Case Redundant Power Available: 979WWorst Case Total Power Available: 2579WPID Description Watts--- ----------- -----GRP-B Route Processor 38PRP-1 Cisco 12000 Series Performance Route Processor 60LC-4OC-3-POS-SM 4 Port Packet Over SONET OC-3c/STM-1 804OC3X/POS-MM-MJ-B 4 port ISE OC3 90If 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.
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ft group 1peer 1no preemptassociate-context ctx1inservice•
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Minimum Flash Disk Requirements When Upgrading to Release 3.7
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. The PCMCIA 2GB Flash Disk is supported in IOS XR 3.6 for customers who need to upgrade their PCMCIA flash disk to the higher capacity disk. To upgrade from 1GB Flash Disk to 2GB Flash Disk, refer to the CRS-1 PCMCIA 1GB Flash Disk to 2GB Flash Disk Upgrade Procedure document http://preview.cisco.com/en/US/docs/routers/xr12000/xr_line_cards/flashdisk/2GBDisk.pdf). 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.
Caveats
Caveats describe unexpected behavior in Cisco IOS XR software releases. Severity-1 caveats are the most serious caveats; severity-2 caveats are less serious.
Open Caveats—Release 3.7.0
This section lists the caveats for Cisco IOS XR Software Release 3.7.0:
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Cisco CRS-1 and Cisco XR 12000 Series Router Caveats
The following caveats apply to both platforms:
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Basic Description:
mfib vrf table goes remote on Line Card, instead of local, in mvpn stress
Symptom:
In a scaled setup, under certain stress scenarios, mfib vrf table goes remote on linecard, instead of local. As a result no routes are programmed on the line card. show mfib table-info vrf-name FOO location ABC should say "Location: Local" if there are interfaces from that linecard on any multicast route. With this bug, you see "Location: Remote"
Conditions:
The exact condition leading to the empty mfib is not known, but the problem has been observed on a mvpnv4 scale testbed with different stress conditions of interface flaps, process restart, addition/removal of multicast configs and/or interfaces.
Workaround:
Clear mfib data (clear mfib database loc ABC) on the linecard or linecard reload
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Basic Description:
ISIS should send IGP metric instead of TE metric to RIB
Symptom:
Cisco Routers running IOS-XR software with MPLS TE config and using IS-IS as IGP protocol may see IS-IS send the TE tunnel metric instead of IGP metric to RIB.
Conditions:
Config MPLS TE and using IS-IS as IGP protocol.
Workaround:
None.
Caveats Specific to the Cisco CRS-1 Router
The following caveats are specific to the Cisco CRS-1 platform:
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Basic Description:
Unexpected restart of lspv_server for "show mpls oam dat req" with IPSLA
Symptom
An unexpected restart of the lspv_server process is seen when "show mpls oam database request" command is issued.
Conditions:
The unexpected restart was observed when cli "show mpls oam database request" was used while IP/SLA has requested echo request transmissions from lspv_server.
Workaround:
No explicit user action is needed. The lspv_server process gets automatically respawned after the abnormal termination and IP/SLA MPLS operations are resumed.
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Basic Description:
port deletion timeout after GIGE SPA OIR, PLA assert BP to egressQ
Symptom:
On a CRS chassis with traffic passing on GIGE SPA, OIR takes long time because plaspa asserts back pressure on egressQ. Unless the queues are empty the port deletion does not happen, eventually it timeout. After timeout the SPA reboot and come back up.
The impact of this results in stale egress queues which are never used again.
Conditions:
GIGE SPA OIR with traffic on it, can cause this problem.
Workaround:
LC reload.
Further Problem Description:
Egress queue fails to drain packets because of BP from plaspa during SPA OIR. After port deletion timeout the egressq are deleted from software and SPA comes-up with new queue allocation. This may result in stale egressq queues.
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Basic Description:
show tech multicast takes a long time to complete
Symptom:
The show tech multicast command takes a long time to complete.
Conditions:
This issue was seen during regular usage of the show tech multicast command. Depending on the router scale, it can take multiple hours to complete.
Workaround:
User can reduce the amount of data collected by the show tech multicast command by using relevant filters for location, group_address, source_address, and vrf. The reduced data will reduce the time required by the command to complete.
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Basic Description:
Unexpected restart of bgp process on enabling distributed bgp
Symptom:
An unexpected restart of the bgp process is seen on enabling distributed BGP.
Conditions:
The unexpected restart of the bgp process was seen on config/unconfig of distributed to standalone bgp mode on CRS.
Workaround:
There is no known workaround. However the process gets respawned automatically after the unexpected termination and recovers
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Basic Description:
rdsfs_svr proc crash on standby DRP/RP upon router reload
Symptom:
rdsfs_svr process crashes (voluntary dump) on RP/DRP
Conditions:
DRP FO / Router reload (It is due to a temporary transport glitch).
Workaround:
Process comes back up fine after the restarted (process crash).
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Basic Description:
show tech fabric fabric-support loc - no pipeline option
Symptom:
router(admin)#sh tech fabri fabric-snapshot location 0/5/CPU0 include-fabric-cards include-rp ?
<cr>
CLI does not have pipeline option.
Conditions:
Execution of CLI command "router(admin)#sh tech fabri fabric-snapshot location 0/5/CPU0 include-fabric-cards include-rp"
Workaround:
Specify the output option prior to specifying location, e.g.
router(admin)#sh tech fabri fabric-snapshot file harddisk:/tmp/snapshot location 0/5/CPU0 include-fabric-cards include-rp ?
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Beside inconsistency in command structure, showtech fabric snapshot, command should work fine functionally. The user should be able to save output to file, email the output or paging output on the console as designed, only in some situations, the output option must be specified prior to the location and other options.
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Basic Description:
cfgmgr-lc unable to process configuration restoration requests
Symptom:
Restoration of interface configuration for the specified node, in the event message, failed with the error reason - "A client of SysDB attempted to start a transaction or bulk operation while it was already in a transaction''. Please see event message below:
LC/3/4/CPU0:Apr 11 17:27:38.701 : cfgmgr-lc[114]:
%MGBL-CONFIG-3-INTERFACE_ERROR : Error encountered while restoring configuration for ''bulk restore''. Some configuration may not have been applied and any missing configuration needs to be reapplied manually. Error: ''''sysdb'' detected the ''warning'' condition ''A client of SysDB attempted to start a transaction or bulk operation while it was already in a transaction''
Additional things to look for are
1) Log show log shows SysDB errors.
2) sh configuration sessions shows staled configuration sessions.
Please note that restoration of interface failure due to the lower layer SysDB issue is tracked by separate DDTS. This DDTS is for better handling of the stale configuration sessions.
Conditions:
In a scaled CRS multichassis system, after nDSC OIR, there were some interface configuration not being restored caused by a lower layer SysDB issue.
Also, this had the side-effect of causing cfgmgr-lc to retry restoration of configuration for a node resulting in it creating a new configuration session each time. The logic in cfgmgr-lc is to retry indefinitely since there could be a legitimate case of a large configuration being committed which has the configuration write lock causing the LC restoration to wait. The stale configuration sessions were resulting from the lower layer returning an incorrect error code when this condition happened.
Workaround:
Restart the gsp process on the affected nodes. This should clear the SysDB issue and cause configuration restoration to continue.
To remove the stalled configuration sessions, please use the clear configuration session <session> command.
Caveats Specific to the Cisco XR 12000 Series Router
The following caveats are specific to the Cisco XR 12000 Series Router platform:
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BFD session can flap 2 to 3 times after an OIR/interface shut/noshut
Basic Description:
A Cisco router running IOS-XR software and configured to run the Bidirectional Forwarding Detection (BFD) protocol with echo mode enabled may have BFD sessions flap 2 to 3 times due to echo failure after a linecard (LC) reload, SPA reload or when an interface is shut/no shut.
Symptom
A BFD session that is getting established will transition to UP state and then go DOWN due to echo failure. This may happen more than once depending on how fast the forwarding entries are installed. Eventually the BFD session stays up after few initial flaps.
Conditions:
The problem has been seen when echo mode is enabled for the bfd session and the session is coming up after LC OIR or SPA OIR or shut/unshut of interface over which bfd session is established.
Workaround:
Disable BFD echo mode.
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Basic Description:
Unexpected restart of ipv6_ma process on linecard admin shut/noshut
Symptom:
An unexpected restart of the 'ipv6_ma' process following admin shut/unshut of a linecard.
Conditions:
On rare occasions, an abnormal restart of the ipv6_ma process has been observed following admin shut/noshut of a linecard.
Workaround:
No explicit workaround is necessary. The process 'ipv6_ma' will get respawned automatically and will recover from this error.
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Basic Description:
"show tech install file tftp" can pause indefinitely
Symptom:
The "show tech install file tftp" command may pause indefinitely.
Conditions:
The problem happens when the output of the "show tech install" command is directed to a tftp server on the network. Directing the show tech output to tftp server works fine for other show tech commands. Directing the output to tftp server works for the other show tech commands but not for show tech install due to the big size of the output and multiple scripts running behind the show tech install CLI.
Workaround:
ctrl+c will kill the show tech install command and return the console prompt back to user. To copy the show tech install out of the router, use "show tech install file disk...." to first save the show output to local disk, then copy that file from disk to tftp server.
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Basic Description:
show services redundancy summary - displays unnecessary zeros
Symptom:
The output of "show services redundancy summary" displays unnecessary zeros before the count of services. For example for a configuration with 100 Firewall services, the following output is displayed.
RP/0/15/CPU0:PE1#show services redundancy summary
Service type Offline Act Only Act+Stby Total
----------------------------------------------------
Firewall 00000000 00000100 00000000 00000100
Conditions:
This problem is observed in Cisco XR 12000 Series Router running 3.7.0.
Workaround:
No workaround is required for this issue, as it does not cause any problems on the router. The services that are configured behave correctly, and the numbers of services displayed in the output of this show command are correct. The only issue is with the formatting of the output.
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
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Troubleshooting
For information on troubleshooting Cisco IOS XR Software, see the Cisco IOS XR Getting Started Guide and the Cisco IOS XR Troubleshooting Guide.
Related Documentation
The following sections describe the documentation available for the Cisco CRS-1 and the Cisco XR 12000 Series Router. Documentation is available in the form of PDF and HTML files and is available on www.Cisco.com.
Use this release notes with the following documents:
Hardware Documents
You can find the most current hardware documentation at the following URLs:
Cisco CRS-1 Series Router:
http://www.cisco.com/en/US/products/ps5763/tsd_products_support_series_home.html
Cisco XR 12000 Series Router:
http://www.cisco.com/en/US/products/ps6342/tsd_products_support_series_home.html
Software Documents
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. For a full list, see About Cisco IOS XR Software Documentation for Release 3.7 for a list of Cisco IOS XR Software documentation for Release 3.7.0.
You can find the most current software documentation at the following URL:
http://www.cisco.com/en/US/products/ps5845/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.
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