Table Of Contents
Release Notes for Cisco ASR 901 Series Aggregation Services Router for Cisco IOS Release 15.2(2)SNI
Introduction
System Specifications
Memory Details
Determining the Software Version
New and Changed Information
New Hardware Features in Release 15.2(2)SNI
New Software Features in Release 15.2(2)SNI
6VPE and 6PE
1588v2 Boundary Clock
Boundary Clock Licensing
MPLS over MLPPP
Remote LFA FRR
Digital Optical Monitoring for 1Gigabit Ethernet SFPs
Zero Touch Provisioning
Modified Software Features in Release 15.2(2)SNI
New ROMMON Image
Shaper Burst Commit Down to 1 ms
Limitations and Restrictions
Supported Hardware
Supported MIBs
Caveats
Using Bug Toolkit
Search Bugs
Save Bugs
Save Search
Retrieve Saved Search or Bugs
Export to Spreadsheet
Open Caveats
Resolved Caveats
Troubleshooting
Related Documentation
Services and Support
Release Notes for Cisco ASR 901 Series Aggregation Services Router for Cisco IOS Release 15.2(2)SNI
February 2013
OL-28919-01
This release notes is for the Cisco ASR 901 Series Aggregation Services Router for Cisco IOS Release 15.2(2)SNI and contains the following sections:
•
Introduction
•System Specifications
•New and Changed Information
•Limitations and Restrictions
•Caveats
•Troubleshooting
•Related Documentation
•Services and Support
Introduction
The Cisco ASR 901 Series Aggregation Services Router is a cell-site access platform specifically designed to aggregate and transport mixed-generation radio access network (RAN) traffic. The router is used at the cell site edge as a part of a 2G, 3G, or 4G RAN.
Table 1 lists the Cisco ASR 901 router model versions.
Table 1 Cisco ASR 901 Router Models
TDM + Ethernet Version
|
Ethernet Version
|
•A901-12C-FT-D1
•A901-4C-FT-D1
•A901-6CZ-FT-D1
•A901-6CZ-FT-A2
|
•A901-12C-F-D1
•A901-4C-F-D1
•A901-6CZ-F-D1
•A901-6CZ-F-A2
|
Note Some of the Cisco ASR 901 models have port based licensing. For more details, see the Licensing chapter in Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide.
The Cisco ASR 901 router helps enable a variety of RAN solutions by extending IP connectivity to devices using Global System for Mobile Communications (GSM), General Packet Radio Service (GPRS), Node Bs using High Speed Packet Access (HSPA) or Long Term Evolution (LTE), base transceiver stations (BTSs) using Enhanced Data Rates for GSM Evolution (EDGE), Code Division Multiple Access (CDMA), CDMA-2000, EVDO, or WiMAX, and other cell-site equipment.
It transparently and efficiently transports cell-site voice, data, and signaling traffic over IP using traditional T1 and E1 circuits, as well as alternative backhaul networks such as Carrier Ethernet and DSL, Ethernet in the First Mile (EFM), and WiMAX. It also supports standards-based Internet Engineering Task Force (IETF) Internet protocols over the RAN transport network, including those standardized at the Third-Generation Partnership Project (3GPP) for IP RAN transport. Custom designed for the cell site, the Cisco ASR 901 router features a small form factor, extended operating temperature, and cell-site DC input voltages.
System Specifications
Table 2 lists the supported system configurations for the Cisco ASR 901 router:
Memory Details
Table 2 lists the memory available for Cisco ASR 901 router.
Table 2 Cisco IOS Release 15.2(2)SNI Memory Details
Platform
|
Software Image
|
Flash Memory
|
DRAM Memory
|
Runs From
|
Cisco ASR 901 Series Aggregation Services Router TDM version
|
asr901-universalk9-mz
|
128 MB
|
512 MB
|
RAM
|
Cisco ASR 901 Series Aggregation Services Router, Ethernet version
|
asr901-universalk9-mz
|
128 MB
|
512 MB
|
RAM
|
Determining the Software Version
To determine the image and version of Cisco IOS software running on your Cisco ASR 901 router, log in to the router and enter the show version command in the EXEC mode:
Cisco IOS Software, 901 Software (ASR901-UNIVERSALK9-M), Version 15.2(2)SNI, RELEASE
SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2013 by Cisco Systems, Inc.
Compiled Thu 07-Feb-13 13:57 by prod_rel_team
ROM: System Bootstrap, Version 15.2(2r)SNI, RELEASE SOFTWARE (fc1)
New and Changed Information
•New Hardware Features in Release 15.2(2)SNI
•New Software Features in Release 15.2(2)SNI
•Modified Software Features in Release 15.2(2)SNI
New Hardware Features in Release 15.2(2)SNI
There are no new hardware features in Cisco IOS Release 15.2(2)SNI.
New Software Features in Release 15.2(2)SNI
The following features are supported from this release:
6VPE and 6PE
This release implements IPv6 VPN Provider Edge Transport over MPLS (6PE) and IPv6 on VPN Provider Edge Routers (6VPE) on the Cisco ASR 901 Series Aggregation Services Routers.
For information about this feature, see the IPv6 over MPLS: 6PE and 6VPE guide at the following URL: http://www.cisco.com/en/US/docs/wireless/asr_901/Configuration/Guide/6pe_6vpe.html
1588v2 Boundary Clock
The 1588V2 Boundary Clock feature allows you to use the PTP boundary clock on the Cisco ASR 901 router. A PTP boundary clock acts as a middle hop between a PTP master and PTP slaves.
For more information about this feature, see Configuring Clocking guide at the following URL: http://www.cisco.com/en/US/docs/wireless/asr_901/Configuration/Guide/clocking.html
Boundary Clock Licensing
The installation of 1588BC license on the Cisco ASR 901 router allows you to use the PTP boundary clock.
For more information about this feature, see Licensing guide at the following URL: http://www.cisco.com/en/US/docs/wireless/asr_901/Configuration/Guide/lic.html
MPLS over MLPPP
The Multiprotocol Label Switching (MPLS) support over Multilink PPP feature allows you to use labeled switch paths (LSPs) over MLPPP links.
For information about this feature, see Configuring MLPPP guide at the following URL: http://cisco.com/en/US/docs/wireless/asr_901/Configuration/Guide/mlppp.html
Remote LFA FRR
The Remote Loop-free Alternate (LFA) - Fast Reroute (FRR) feature uses a backup route, computed using dynamic routing protocol during a node failure, to avoid traffic loss.
For information about this feature, see Remote Loop-Free Alternate - Fast Reroute guide at the following URL: http://cisco.com/en/US/docs/wireless/asr_901/Configuration/Guide/remote_lfa-frr.html
Digital Optical Monitoring for 1Gigabit Ethernet SFPs
This feature allows you to monitor real-time parameters of the router, such as optical input and output power, temperature, laser bias current, and transceiver supply voltage.
For more information about this feature, see Digital Optical Monitoring guide at the following URL: http://cisco.com/en/US/docs/wireless/asr_901/Configuration/Guide/dom.html
Zero Touch Provisioning
The zero-touch deployment capability enables the Cisco ASR 901 router to auto configure itself, download an updated image, connect to the network, and start the operation as soon as it is cabled and powered up.
For more information about this feature, see Managing and Monitoring Network Management Features guide at the following URL:
http://www.cisco.com/en/US/docs/wireless/asr_901/Configuration/Guide/managingandmonitoring.html
Modified Software Features in Release 15.2(2)SNI
This section lists the features modified for this release:
New ROMMON Image
This release has a new upgrade ROMMON (15.2(2r)SNI) bundled with the IOS image. Upgrading to the new IOS image (Cisco IOS Release 15.2(2)SNI) automatically upgrades the ROMMON to the new version. After the ROMMON upgrade, the router performs an additional reload for the upgrade to take effect.
For more details, see Auto upgrade of Rommon section at the following URL: http://www.cisco.com/en/US/docs/wireless/asr_901/Configuration/Guide/swupgrade.html
Shaper Burst Commit Down to 1 ms
Starting with Cisco IOS Release 15.2(2)SNI, the lower limit of the committed burst size (bc) is changed to 1 ms from 4 ms.
For information about this feature, see Configuring QoS guide at the following URL: http://www.cisco.com/en/US/docs/wireless/asr_901/Configuration/Guide/qos.html
Limitations and Restrictions
Cisco IOS Release 15.2(2)SNI for the Cisco ASR 901 Series Aggregation Services Router has the following general limitations and restrictions:
Note For limitations and restrictions that are specific to features, see the respective feature guide.
•QinQ configuration for Layer3 is not possible with pop1 rewrite. However pop2 configured routed QinQ is supported.
•Default xconnect MTU is 9216.
•For interoperability with other routers for an xconnect session, ensure that the MTU on both PE routers is same before the xconnect session is established.
•VLAN IDs 4093, 4094, and 4095 are reserved for internal usage.
•The dot1q and dot1ad range configuration is not supported on the port channel interface.
•The system (hardware) time should be set to the current time before configuring PTP.
•MPLS is not supported over routed QinQ
ACL
•Loopback feature should not be enabled when Layer 2 Control Protocol Forwarding is enabled.
•Following IOS keywords are not supported on Cisco ASR 901 router—match-any, ip-options, logging, icmp-type/code, igmp type, dynamic, reflective, evaluate.
•Ingress PACL and RACL supports TCP/UDP port range; Egress ACL does not support port range.
•Sharing access lists across interfaces is not supported.
•ACL is not supported on Management port (FastEthernet) and serial interfaces.
•Devices in the management network (network connected to Fast Ethernet port) cannot be accessed from any other port. If the default route is configured on Cisco ASR 901 to fast ethernet interface (Fa0/0), all the routed packets will be dropped. However, this configuration could keep CPU busy and affect overall convergence.
Clocking
•External interfaces like BITS and 1PPS have only one port—they work either as an input interface or output interface at a given time.
•The line to external option for external SSU is not supported.
•ToD is not integrated to the router system time. ToD input or output reflects only the PTP time, not the router system time.
•Revertive and non-revertive modes work well only with two clock sources.
•BITS cable length option is supported via platform timing bits line-build-out command.
•There is no automatic recovery from OOR Alarms. It has to be manually cleared using clear platform timing oor-alarms command.
•If copper Gigabit Ethernet port is selected as the input clock source, the link should be configured as a IEEE 802.3 link-slave, using synce state slave command.
•BITS reports LOS only for AIS, LOS and LOF alarms.
•Loop timing is not supported in E1/T1 controllers. (IOS Command—clock source line). However, the clock can be recovered from T1/E1 lines and used to sync system clock using the IOS command network-clock input-source <prio> controller <E1/T1> 0/x.
IEEE 1588v2 (PTP)
•Only Unicast Direct and Unicast Negotiation modes are supported; Multicast mode is not supported.
•PTP slave supports both single and two-step modes. PTP master supports only two-step mode.
•VLAN 4093 is used for internal PTP communication; do not use 4093 in your network.
•Loopback interface is used in Cisco ASR 901 router instead of ToP interface for configuring 1588 interface/IP address.
•The 1pps output command is not supported on OC-master.
•Sync and Delay request rates should be above 32pps, the optimum value being 64pps.
•Clock-ports even when configured as slave-only, start off as master. So the initial or reset state of the clock always shows as master. This implies that the master should have higher priority (priority1, priority2) for the slave to accept the master.
Supported Hardware
Table 3 and Table 4 shows the SFP modules supported on the Cisco ASR 901 routers:
Table 3
•CWDM-SFP-1470
•CWDM-SFP-1490
•CWDM-SFP-1510
•CWDM-SFP-1530
•CWDM-SFP-1550
•CWDM-SFP-1570
•CWDM-SFP-1590
•CWDM-SFP-1610
•DWDM-SFP-XXXX1
•GLC-BX-U and GLC-BX-D2
•GLC-EX-SMD
•GLC-LH-SMD
|
•GLC-LX-SM-RGD
•GLC-SX-MMD
•GLC-SX-MM-RGD
•GLC-T
•GLC-ZX-SM
•GLC-ZX-SMD
•GLC-ZX-SM-RGD
•SFP-GE-L
•SFP-GE-S
•SFP-GE-T
•SFP-GE-Z
|
SFPs Supported on the Cisco ASR 901 1G Router
Table 4
•SFP-10G-ER
•SFP-10G-LR
•SFP-10G-LR-X
|
•SFP-10G-SR
•SFP-10G-SR-X
•SFP-10G-ZR
|
SFPs Supported on the Cisco ASR 901 10G Router
Note For information on how to configure SFPs, see the Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide.
Supported MIBs
The Cisco ASR 901 router supports the following MIBs:
•BGP4-MIB
|
•CISCO-STP-EXTENSIONS-MIB
|
•BRIDGE-MIB
|
•CISCO-SYSLOG-MIB
|
•CISCO-ACCESSENVMON-MIB
|
•CISCO-TC
|
•CISCO-CAR-MIB
|
•ENTITY-MIB
|
•CISCO-CDP-MIB
|
•ETHERLIKE-MIB
|
•CISCO-CEF-MIB
|
•HCNUM-TC
|
•CISCO-CLASS-BASED-QOS-MIB
|
•IANAifType-MIB
|
•CISCO-CONFIG-COPY-MIB
|
•IEEE8021-CFM-MIB
|
•CISCO-CONFIG-MAN-MIB
|
•IF-MIB
|
•CISCO-DATA-COLLECTION-MIB
|
•IMA-MIB
|
•CISCO-DOT3-OAM-MIB
|
•INT-SERVE-MIB
|
•CISCO-EIGRP-MIB
|
•IP-FORWARD-MIB
|
•CISCO-ENHANCED-MEMPOOL-MIB
|
•IP-MIB
|
•CISCO-ENTITY-ASSET-MIB
|
•MPLS-LDP-MIB
|
•CISCO-ENTITY-VENDORTYPE-OID-MIB
|
•MPLS-LSR-MIB
|
•CISCO-ENVMON-MIB
|
•MPLS-VPN-MIB
|
•CISCO-FLASH-MIB
|
•NOTIFICATION-LOG-MIB
|
•CISCO-IETF-PW-MIB
|
•OLD-CISCO-CHASSIS-MIB
|
•CISCO-IETF-PW-TC-MIB
|
•OLD-CISCO-FLASH-MIB
|
•CISCO-IF-EXTENSION-MIB
|
•OLD-CISCO-INTERFACES-MIB
|
•CISCO-IMAGE-MIB
|
•OLD-CISCO-IP-MIB
|
•CISCO-IPSLA-ETHERNETMIB
|
•OLD-CISCO-SYS-MIB
|
•CISCO-MEMORY-POOL-MIB
|
•OLD-CISCO-TS-MIB
|
•CISCO-NETSYNC-MIB
|
•OSPF-MIB
|
•CISCO-NTP-MIB
|
•PerfHist-TC-MIB
|
• CISCO-OSPF-MIB
|
•RFC1213-MIB
|
•CISCO-PING-MIB
|
•RMON2-MIB
|
•CISCO-PROCESS-MIB
|
•RMON-MIB
|
•CISCO-PRODUCTS-MIB
|
•SNMP-FRAMEWORKMIB
|
•CISCO-PTP-MIB
|
•SNMP-TARGET-MIB
|
•CISCO-QUEUE-MIB
|
•SNMPv2-MIB
|
•CISCO-RESILIENT-ETHERNET-PROTOCOL-MIB
|
•SNMPv2-SMI
|
•CISCO-RTTMON-MIB
|
•SNMPV2-TC
|
•CISCO-SENSOR-ENTITY-MIB
|
•TCP-MIB
|
•CISCO-SMI-MIB
|
•UDP-MIB
|
•CISCO-SNAPSHOT-MIB
|
•
|
•CISCO-SNMP-TARGET-EXT-MIB
|
•
|
Caveats
Caveats describe unexpected behavior in Cisco IOS software releases. Severity 1 caveats are the most serious caveats, severity 2 caveats are less serious, and severity 3 caveats are the least serious of these three severity levels. Only select severity 3 caveats are listed.
This section contains the following topics:
•Using Bug Toolkit
•Open Caveats
•Resolved Caveats
Using Bug Toolkit
The Caveats section only includes the bug ID and a short description of the bug. For details on the symptoms, conditions, and workaround for a particular bug you must use the Bug ToolKit. This section explains how to use the bug toolkit and has the following topics:
•Search Bugs
•Save Bugs
•Save Search
•Retrieve Saved Search or Bugs
•Export to Spreadsheet
Search Bugs
This section explains how to use the Bug ToolKit to search for a specific bug.
Step 1 Go to http://www.cisco.com/pcgi-bin/Support/Bugtool/launch_bugtool.pl.
You are prompted to log into Cisco.com. After successful login, the Bug Toolkit page opens.
Step 2 Click Launch Bug Toolkit.
Step 3 To search for a specific bug, enter the bug ID in the Search for Bug ID field and click Go in the Search Bugs tab.
To search for bugs in a specific release, enter the following search criteria:
•Select Product Category—Select Routers.
•Select Products—Select the required product from the list. For example, to view bugs for Cisco ASR 901, choose Cisco ASR 901 Series Aggregation Services Router from the list.
•Software Version—Choose the required Cisco IOS version from the drop-down lists. For example, to view the list of outstanding and resolved bugs in Cisco IOS Release 15.2(2)SNI, choose 15.2 from the first drop-down list, 2 from the second drop-down list, and SNI from the third drop-down list.
•Search for Keyword(s)—Separate search phrases with boolean expressions (AND, NOT, OR) to search within the bug title and details.
•Advanced Options—You can either perform a search using the default search criteria or define custom criteria for an advanced search. To customize the advanced search, select Use custom settings for severity, status, and others and provide the following information:
–Severity—Select the severity level.
–Status—Select Open, Fixed, or Terminated.
Select Open to view all the open bugs. To filter the open bugs, clear the Open check box and select the appropriate sub-options that appear below the Open check box. The sub-options are New, Held, More, Open, Waiting, Assigned, Forwarded, Postponed, Submitted, and Information Required. For example, if you want to view only new bugs in Cisco IOS Release 15.2(2)SNI, select New.
Select Fixed to view fixed bugs. To filter fixed bugs, clear the Fixed check box and select the appropriate sub-options that appear below the Fixed check box. The sub-options are Resolved or Verified.
Select Terminated to view terminated bugs. To filter terminated bugs, clear the Terminated check box and select the appropriate sub-options that appear below the terminated check box. The sub-options are Closed, Junked, and Unreproducible. Select multiple options as required.
–Advanced—Select the Show only bugs containing bug details check box to view only those bugs that contain detailed information, such as symptoms and workarounds.
–Modified Date—Select this option if you want to filter bugs based on the date on which the bugs were last modified.
–Results Displayed Per Page—Select the appropriate option from the list to restrict the number of results that appear per page.
Step 4 Click Search. The Bug Toolkit displays the list of bugs based on the specified search criteria.
Save Bugs
This section explains how to use Bug ToolKit to save the bugs retrieved by your search in a specific release.
Step 1 Perform a search.
Repeat Step 1 through Step 3 in the "Search Bugs" section.
Step 2 Select the check boxes next to the bug you want to save in the Search Results page and click Save Checked.
The Save Bug Settings area appears under the Search Bugs tab.
Step 3 Specify group settings in the Place in Group field.
•Existing Group—Select an existing group.
•Create New Group—Enter a group name to create a new group.
Existing groups have their group notification options already set. If you select an existing group, go to Step 5.
Step 4 Specify the following email update (group notification) options.
•No emailed updates—Select if you do not want to receive email updates.
•Yes, email updates to—Enter your email address.
–On a schedule—Specify the frequency of email delivery.
Step 5 Click Save Bug.
The Bug ToolKit saves the selected bugs in the specified group.
Save Search
This section explains how to use Bug ToolKit to save your search after searching for the bugs in a specific release.
Step 1 Perform a search.
Repeat Step 1 through Step 3 in the "Search Bugs" section.
Step 2 Click Save Search in the Search Results page to save your search with the specified criteria.
The Save Search Settings area appears under the My Notifications tab.
Step 3 Enter a name for your search in the Search Name field.
Step 4 Specify group settings in the Place in Group field.
•Existing Group—Select an existing group.
•Create New Group—Enter a group name to create a new group.
Existing groups have their group notification options already set. If you select an existing group, go to Step 6.
Step 5 Specify the following email update (group notification) options.
•No emailed updates—Select if you do not want to receive email updates.
•Yes, email updates to—Enter your email address.
–On a schedule—Specify the frequency of email delivery.
Step 6 Click Save Search.
The Bug ToolKit saves your search in the specified group.
Retrieve Saved Search or Bugs
This section explains how to use Bug ToolKit to retrieve a saved search or bugs.
Step 1 Go to http://www.cisco.com/pcgi-bin/Support/Bugtool/launch_bugtool.pl and click Launch Bug Toolkit.
You are prompted to log into Cisco.com.
Step 2 Click My Notifications tab.
My Notifications tab displays the Group Name, Summary, and Actions.
Step 3 Click the group in the Group Name column. The group contains saved search and bugs.
Step 4 Retrieve saved search or bugs.
•Click the saved search name to display the Search Results page.
•Click the saved bug to display details or hover your mouse pointer over the Info link.
The My Notifications tab also provides option to delete bug, delete search, delete group, edit group notifications (in the Actions column), move selected saved search or bugs to different group, and to export saved bugs in all the groups to a spreadsheet.
Export to Spreadsheet
The Bug ToolKit provides the following options to export bugs to a spreadsheet:
•Click Export All to Spreadsheet link in the Search Results page under the Search Bugs tab. Specify file name and folder name to save the spreadsheet. All the bugs retrieved by the search is exported.
•Click Export All to Spreadsheet link in the My Notifications tab. Specify file name and folder name to save the spreadsheet. All the saved bugs in all the groups is exported.
If you are unable to export the spreadsheet, log into the Technical Support Website at
http://www.cisco.com/cisco/web/support/index.html for more information or call Cisco TAC (1-800-553-2447).
Open Caveats
This section provides information about the open caveats for the Cisco ASR 901 router running Cisco IOS Release 15.2(2)SNI.
Bug ID
|
Description
|
CSCtk33675
|
The service instance configuration is rejected when the encapsulation is set to default for double-tagged traffic.
|
CSCtl70431
|
The "no rewrite" option is not working on interfaces configured with encapsulation dot1q.
|
CSCtn18900
|
Service policy classification based on inner Virtual LAN p-bits is not working.
|
CSCtn32463
|
There is no command restriction in applying a service policy to Ethernet Virtual Connection (EVC) on the egress.
|
CSCtn71094
|
The no int vlan 1 command deletes VLAN 1.
|
CSCtn79746
|
The show ethernet service instance statistics command is not displaying any statistics.
|
CSCto96840
|
A CLI restriction is required for Dual Rate Three Color (2R3C) on parent class in Hierarchical Quality of Service (HQoS).
|
CSCtq26793
|
Some ports are not getting bundled with the port channel because of attribute mismatch, such as flow-control.
|
CSCtr05566
|
The Multiprotocol Label Switching (MPLS) traffic fails when port channel encapsulation is not equal to the bridge domain on the core.
|
CSCtr70228
|
High CPU utilization is observed while performing save or copy operation.
|
CSCts66081
|
Ingress VLAN translation failure occurs when entries exceed 3000.
|
CSCts80090
|
The reserved VLANs are not blocked on the router.
|
CSCts84679
|
The circuit emulation (CEM) interface displays wrong configuration in the show running-configuration command output, when pw-class is configured.
|
CSCts85484
|
Traceback occurs after executing rep preempt segment segid command.
|
CSCts92808
|
Weighted Random Early Detection (WRED) counters are not working for discard class 0.
|
CSCtw52497
|
The interface drops all ingress packets when you reload the router with write erase, and copy the saved configuration to the running configuration.
|
CSCtw69021
|
Maximum bandwidth guarantee for Multilink Point-to-Point Protocol (MLPPP) interface is not working for 64-byte size frames in Low Latency Queuing (LLQ).
|
CSCtx12366
|
The servo is accepting more than 64PPS Sync in static unicast.
|
CSCtx22010
|
SyncE is not supported for the Copper SFPs: GLC-T and SFP-GE-T
|
CSCtx34208
|
Clock selection fails for SyncE when interface media-type is SFP.
|
CSCtx54735
|
High CPU utilization and traceback is observed while doing copy and paste of 16 E1 controllers unconfigurations.
|
CSCtx77374
|
Input errors are increasing when serial interface flaps. This issue is observed on a serial interface that is part of a multilink interface, when keepalive is disabled.
|
CSCty04070
|
Traffic fails and continuous traceback is observed, when xconnect is configured on an untagged EVC.
|
CSCty95886
|
The file copy function is not detecting errors properly.
|
CSCtz16522
|
The Two-Way Active Measurement Protocol (TWAMP) session-reflector packet truncation fails.
|
CSCtz34776
|
Random IP/UDP packets sent to LB interface are getting punted to CPU.
|
CSCtz38207
|
Router is rebooting continuously due to failed fans.
|
CSCtz48755
|
We recommend the use of minimum 1 sec (or above) hello timer for Hot Standby Router Protocol (HSRP) and Virtual Redundancy Router Protocol (VRRP). With this configuration, we support a maximum of 50 sessions.
|
CSCtz69403
|
IPv6 traffic is not getting dropped with link-local as source address.
|
CSCtz81384
|
The Layer 2 ATM/IMA interface and its permanent virtual circuits (PVCs) are not coming up when operations, administration and maintenance (OAM) is configured.
|
CSCtz90417
|
When the router boots up, the following traceback is displayed: "%LICENSE-2-VLS_ERROR: 'VLSsetPersistencePath' failed with an error - rc = 212 - 'Error[212]:"
There is no functionality impact, it can be safely ignored.
|
CSCtz90437
|
When the router boots up, it displays the following traceback messages: "*Mar 19 23:45:24.371: %LICENSE-2-UNRECOVERABLE: The IOS license storage on this device was not recovered. UDI=A901-12C-FT-D:FHAK1234567
*Mar 19 23:45:24.375: Following corrupted license storage was un-recoverable : lic0:/lservrc.pri
*Mar 19 23:45:24.375: -Traceback= 265C5A8z 60DC228z 60D97C8z 60D9F64z 580B534z 580573Cze"
These tracebacks may also appear while trying to install a license.
There is no functionality impact, it can be safely ignored.
|
CSCua19178
|
Packet drops are seen with IPv6 fragmentation.
|
CSCua34320
|
The OSPFv3 keeps old router-id even after changing the loopback address.
|
CSCua34389
|
Manual tunnel having MPLS configuration with dynamic option in the following sequence does not set up targeted ldp session resulting in tunnel staying down. shut/no shut of the tunnel brings back the targeted Label Distribution Protocol (LDP) session up.
tunnel destination 36.36.36.36
tunnel mode mpls traffic-eng
tunnel mpls traffic-eng path-option 1 dynamic
The issue is not observed when tunnel mode is configured ahead of tunnel destination,
|
CSCua40707
|
The commands related to MPLS and MPLS-TE/FRR are applicable only to SVI interfaces though they can be enabled globally.
Thus configuring the MPLS commands on the GigabitEthernet interface or port-channel is not supported.
|
CSCua49491
|
The MPLS traffic engineering counters are not supported.
|
CSCua51628
|
The OSPFv3 bidirectional forwarding detection (BFD) flaps after an interface is shut in a port-channel bundle.
|
CSCua81678
|
The following error message is displayed for /128 prefix: "Reached Maximum Number of IPv6 Hosts".
|
CSCua82917
|
In remote LFA FRR, the recovery takes more than 80 ms.
|
CSCua84571
|
Load balancing is not working with different streams having symmetrical addresses.
|
CSCua88693
|
The verify command is not supported for the USB flash in the Cisco ASR 901 10G router.
|
CSCua98165
|
The IPv6 BFD packets should be mapped to Queue 6 on egress interface.
|
CSCua99910
|
MAC address table (MAC learning) failures can be seen with more than 31000 MAC Addresses in certain conditions. So it is safe to assume the platform supports 31000 MAC addresses.
|
CSCub12715
|
The "pura_cef_ipv6_route_create_update:Reached Maximum Number of Prefixes supported by platform.Additional Prefixes will not be programmed" message is displayed when the primary path is shut/unshut in a redundant convergent setup.
|
CSCub71746
|
Alarm Indication Signal (AIS) is visible momentarily at T1 controller of CE1 while reverting back to primary.
|
CSCuc15639
|
Connectivity Fault Management (CFM) is not supported with 100 ms interval.
|
CSCuc22630
|
The router fails to recognize USB when its removed immediately after insertion.
|
CSCuc25878
|
The UBR transmits at a lower rate when all five class of service (CoS) Private Virtual Circuits (PVCs) are configured.
|
CSCuc33942
|
The Cisco ASR 901 10G interface is coming up after changing the shut/no shut configuration in startup-configuration.
|
CSCuc39560
|
IPv6 traffic drop occurs globally when IPv4 VRF is configured on the same SVI with "ip vrf definition".
|
CSCuc52851
|
The "%QOS-6-POLICY_INST_FAILED:" error message is displayed when service-policy is applied under a multilink interface.
|
CSCuc85033
|
The untagged Ethernet Virtual Circuit (EVC) port is not supported for spanning tree.
|
CSCud04703
|
In Zero Touch Provisioning, the Cisco ASR 901 router is not able to connect to the CE server using option-43 template, when source interface is passed as a parameter.
|
CSCud14278
|
Border Gateway Protocol (BGP) flap is observed between PEs when traffic from CE side is oversubscribed towards PE.
|
CSCud16558
|
High convergence time is observed when "shut" operation is performed on fast re-route (FRR) configured with port channels. This issue can be resolved with BFD.
|
CSCud21775
|
In Zero Touch Provisioning, the Cisco ASR 901 10G router is using wrong Unique Device Identifier (UDI) event-id to make connection to the CE.
|
CSCud24655
|
CPU hog is observed when primary path is "shut" in an LFA FRR set up with 1000 prefixes.
|
CSCud29184
|
The show version command is not giving the image name when the boot system variable is set as: boot system flash image-name.
|
CSCud32961
|
Error occurs when any label entry is crossing the 3500 range.
|
CSCud33913
|
In Zero Touch Provisioning, the VLAN discovery is not supported for encapsulation dot1ad.
|
CSCud37655
|
The xconnect MTU is not used for traffic filtering.
|
CSCud53474
|
The combo interface is going down after the channel group configuration.
|
CSCud64293
|
The TE-FRR protection is not working when explicit primary path is configured.
|
CSCud71334
|
The mac-address flap control is putting all ports into "err-disabled" state, in some cases.
|
CSCud72473
|
When the Cisco ASR 901 router is configured as Network Time Protocol (NTP) client, it loses synchronization with the server after some time.
|
CSCud75293
|
The show rom-monitor command is not showing upgraded ROMMON version in IOS mode.
|
CSCud79202
|
The show inventory command is displaying the PID of SFP-SX-MM as GLC-SX-MM.
|
CSCud89083
|
The router displays "soc_counter_sync: counter thread not responding" error, under heavy CPU usage.
|
CSCue11410
|
The incremental-SPF configuration is causing micro loops during convergence, in IGP IS-IS.
|
CSCue11688
|
The VRF routes are leaked from the adjacent VRF with a particular IP:nn pattern.
|
CSCue18282
|
CPU hog and traceback is observed when scale configuration is pushed from CE server to the router.
|
CSCue22998
|
Ethernet jitter is giving a wrong return code when it is configured through SNMP.
|
CSCue30216
|
High convergence time is observed for some global prefixes in remote LFA OSPF setup. This issue is also observed for IS-IS, with 500 prefix global scale.
|
CSCue54917
|
The Cisco ASR 901 10G router license is shown as "in use" when the interface is down.
|
CSCuf26488
|
Traffic drops for Equal Cost Multipath (ECMP) prefixes after neighbour discovery (ND) expires on both the links.
|
CSCuf49860
|
Configuration of backup peer on primary xconnect, after bringing up remote peer backup results in flap.
|
Resolved Caveats
This section provides information about the resolved caveats for the Cisco ASR 901 router running Cisco IOS Release 15.2(2)SNI.
Bug ID
|
Description
|
CSCts80072
|
The MPLS forwarding-table counters are not getting incremented.
|
CSCtw98202
|
IP service-level agreement (SLA) echo and jitter is not supported over xconnect.
|
CSCty27927
|
The bandwidth remaining percent limits traffic to configured value.
To configure QoS scheduler, use the qos-config scheduling-mode Min-BW-Guarantee command under the interface where the queuing policy is configured. This command allows the per-class rate to use any unutilized bandwidth beyond the configured minimum guaranteed bandwidth.
|
CSCtz09377
|
Some virtual circuits are going down when several xconnect sessions with Connectivity Fault Management (CFM) is configured.
|
CSCtz82423
|
The copper small form-factor pluggable (SFP) link is not coming up during online insertion.
|
CSCtz82918
|
IPv6 addresses are not sent in addresses Cisco Discovery Protocol (CDP) TLV.
|
CSCub17763
|
The IMA interface is not coming up.
|
CSCub56206
|
The egress object is missing from SVI interface after reload of the router.
|
CSCuc38512
|
It is not possible to compress the file system when the last file is deleted.
|
CSCuc38706
|
The router may hang or reset if an IOS file is not specified in the boot system flash usbflash0: command.
|
CSCuc62493
|
The GLC-ZX-SMD SFP is not getting detected in 10G AC (A901-6CZ-Fx-A) SKUs.
|
Troubleshooting
The following sections describe troubleshooting commands you can use with the Cisco ASR 901 Series Aggregation Services Router.
Collecting Data for Router Issues
To collect data for reporting router issues, issue the following command:
•show tech-support—Displays general information about the router if it reports a problem.
Collecting Data for ROMMON Issues
To collect data for ROMMON issues, issue the following command while in the EXEC mode:
•show rom-monitor—Displays currently selected ROM monitor.
Note If you contact Cisco support for assistance, we recommend that you provide any crashinfo files stored in flash memory. For more information about crashinfo files, see http://www.cisco.com/en/US/products/hw/routers/ps167/products_tech_note09186a00800a6743.shtml.
Related Documentation
Documents related to the Cisco ASR 901 Series Aggregation Services Router include the following:
•Cisco ASR 901 Series Aggregation Services Router Hardware Installation Guide
•Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
•Regulatory Compliance and Safety Information for Cisco ASR 901 Series Aggregation Services Routers
To access the related documentation on Cisco.com, go to:
http://www.cisco.com/en/US/partner/products/ps12077/tsd_products_support_series_home.html
Services and Support
For information on obtaining documentation, obtaining support, providing documentation feedback, security guidelines, and also recommended aliases and general Cisco documents, see the monthly What's New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of Cisco trademarks, go to this URL: www.cisco.com/go/trademarks. Third-party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (1110R)
Release Notes for Cisco ASR 901 Aggregation Series Router for Cisco IOS Release 15.2(2)SNI
© 2013, Cisco Systems, Inc All rights reserved.
Feedback
