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Cisco ASR 901 Series Aggregation Services Routers

Release Notes for Cisco ASR 901 Series Aggregation Services Router for Cisco IOS Release 15.3(3)S

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Table Of Contents

Release Notes for Cisco ASR 901 Series Aggregation Services Router for Cisco IOS Release 15.3(3)S

Introduction

System Specifications

Memory Details

Determining the Software Version

New and Changed Information

New Hardware Features in Release 15.3(3)S

DWDM SFP+

New Software Features in Release 15.3(3)S

Autonomic Networking

Storm Control

Egress Policing

MPLS Traffic Engineering (TE) —Fast Reroute (FRR) Link Protection

Multiaction Ingress Policer on EVC

Y.1731 Performance Monitoring

Modified Software Features in Release 15.3(3)S

RFC 3107 Labeled BGP Support for TDM Pseudowire

Support for Digital Optical Monitoring (DOM) for 10 Gig Optics

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 15.3(3)S

July 2013

OL-30118-01

This release notes is for the Cisco ASR 901 Series Aggregation Services Router for Cisco IOS Release 15.3(3)S and contains the following sections:

•Introduction

•System Specifications

•New and Changed Information

•Supported Hardware

•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.

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.

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

1 DC power

2 AC power


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.

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 15.3(3)S 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: 

Router> show version

Cisco IOS Software, 901 Software (ASR901-UNIVERSALK9-M), Version 15.3(3)S, RELEASE 
SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2013 by Cisco Systems, Inc.

Compiled Thu 25-Jul-13 11:10 by prod_rel_team

ROM: System Bootstrap, Version 15.2(2r)SNI, RELEASE SOFTWARE (fc1)

New and Changed Information

•New Hardware Features in Release 15.3(3)S

•New Software Features in Release 15.3(3)S

•Modified Software Features in Release 15.3(3)S

New Hardware Features in Release 15.3(3)S

This section describes new and changed features in Cisco IOS Release 15.3(3)S.

DWDM SFP+

Support was added for Dense Wavelength Division Multiplexing (DWDM) SFP+ on the Cisco ASR 901 10G series routers. This module provides scalable and easy-to-deploy 10-Gigabit LAN, WAN, and Optical Transport Network (OTN) services. It supports 40 non-tunable ITU 100-GHz wavelengths and provides digital optical monitoring capability. For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/prod/collateral/modules/ps5455/ps6576/data_sheet_c78-711186.html

New Software Features in Release 15.3(3)S

The following features are supported from this release:

Autonomic Networking

Autonomic networking makes devices more intelligent and simplifies the interface between the operator and Network Management System (NMS) system, by providing a strong abstraction across the network, distributed on each device. It also automatically provides all relevant best practices, and keeps them up to date, without the need for human intervention. For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/auto_net/configuration/15-s/an-auto-net-15-s-book.html

Storm Control

The Storm Control feature prevents traffic on a LAN from being disrupted by a broadcast, multicast, or unknown unicast storm on one of a port. For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/wireless/asr_901/Configuration/Guide/storm_control.html

Egress Policing

Egress policing can be classified based on QoS-groups, DSCP, and precedence value. For QoS-groups to work at egress, you should map the traffic at ingress to a specific QoS-group value. For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/wireless/asr_901/Configuration/Guide/qos.html

MPLS Traffic Engineering (TE) —Fast Reroute (FRR) Link Protection

Support for CESoPSN, SAToP, and ATM/IMA was added from Cisco IOS Release 15.3(3)S onwards. For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/wireless/asr_901/Configuration/Guide/mpls_te-frr.html

Multiaction Ingress Policer on EVC

Effective with Cisco IOS Release 15.3(3)S, the Cisco ASR 901 supports policing ingress traffic over the cross connect EVC, similar to bridge domain service policy. For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/wireless/asr_901/Configuration/Guide/qos.html

Y.1731 Performance Monitoring

Effective with Cisco IOS Release 15.3(3)S, the Cisco ASR 901 router supports ITU-T Y.1731 performance monitoring on the following interfaces:

–SLM support on the EVC cross connect

–SLM support on the Port-Channel EVC cross connect

–DMM and SLM support on the EVC BD for both the up and down MEPs

–SLM support on the EVC cross connect for both the up and down MEPs

For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/wireless/asr_901/Configuration/Guide/y1731pm.html

Modified Software Features in Release 15.3(3)S

This section lists the feature modified for this release:

RFC 3107 Labeled BGP Support for TDM Pseudowire

The RFC 3105 labeled BGP is supported for TDM pseudowire from Cisco IOS Release 15.3(3)S onwards. For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/wireless/asr_901/Configuration/Guide/labeled_bgp.html

Support for Digital Optical Monitoring (DOM) for 10 Gig Optics

Effective with Cisco IOS Release 15.3(3)S, Cisco ASR 901 supports DOM for both 1G and 10G SFPs. For detailed information about this feature, see the following document:

http://www.cisco.com/en/US/docs/wireless/asr_901/Configuration/Guide/dom.html

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

1 40 wavelengths

2 These SFPs (GLC-BX-U and GLC-BX-D) should be connected back to back to bring the interface link up.


SFPs Supported on the Cisco ASR 901 1G and 10G Routers for 1G Mode

Table 4

•SFP-10G-ER

•SFP-10G-LR

•SFP-10G-LR-X

•DWDM-SFP+

•SFP-H10GB-CU1M

•SFP-H10GB-CU3M

•SFP-H10GB-CU5M

•SFP-10G-SR

•SFP-10G-SR-X

•SFP-10G-ZR

•SFP-10G-LRM

•SFP-H10GB-ACU7M

•SFP-H10GB-ACU10M


SFPs Supported on the Cisco ASR 901 10G Router for 10G Mode

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

•OSPFv3-MIB

• CISCO-OSPF-MIB

•PerfHist-TC-MIB

•CISCO-PING-MIB

•RFC1213-MIB

•CISCO-PROCESS-MIB

•RMON2-MIB

•CISCO-PRODUCTS-MIB

•RMON-MIB

•CISCO-PTP-MIB

•SNMP-FRAMEWORKMIB

•CISCO-QUEUE-MIB

•SNMP-TARGET-MIB

•CISCO-RESILIENT-ETHERNET-PROTOCOL-MIB

•SNMPv2-MIB

•CISCO-RTTMON-MIB

•SNMPv2-SMI

•CISCO-SENSOR-ENTITY-MIB

•SNMPV2-TC

•CISCO-SMI-MIB

•TCP-MIB

•CISCO-SNAPSHOT-MIB

•UDP-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 15.3(2)S, choose 15.3 from the first drop-down list, 2 from the second drop-down list, and S 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 15.3(2)S, 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 15.3(3)S.

Bug ID
Description

CSCtn18900

Service policy classification based on inner Virtual LAN p-bits is not working.

CSCtn71094

The no interface vlan 1 command deletes VLAN 1.

CSCtn79746

The show ethernet service instance statistics command is not displaying any statistics.

CSCto96840

A command 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.

CSCtz38207

Router is rebooting continuously due to failed fans.

CSCtz48755

The write operation triggers the flaps for Hot Standby Router Protocol (HSRP). We recommend the use of minimum 1 sec (or above) hello timer for 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.

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. 

interface Tunnel108

ip unnumbered Loopback0

mpls label protocol ldp

mpls ip

tunnel source Loopback0

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.

CSCuc39560

IPv6 traffic drop occurs globally when IPv4 VRF is configured on the same SVI with ip vrf definition.

CSCuc85033

The untagged Ethernet Virtual Circuit (EVC) port is not supported for spanning tree.

CSCuc95900

Traffic is receiving two VLAN tags, instead of three for QinQ with pop 2.

CSCud04703

In Zero Touch Provisioning, the Cisco ASR 901 series router is not able to connect to the CE server using option-43 template, when source interface is passed as a parameter.

CSCud05125

In traffic generator, the receiver (Rx) counter is incrementing even after the EVC mismatch.

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.

CSCud20997

The Ethernet Over MPLS (EoMPLS) pseudowire redundancy fails when backup pseudowire is active in TE-FRR backup path.

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.

CSCud71334

The mac-address flap control is putting all ports into "err-disabled" state, in some cases.

CSCud74577

The CPU process for IP SLA continues to run even after stopping the traffic generator.

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.

CSCue54634

Traffic outage and pstorm errors are observed when port channel is configured and unconfigured multiple times.

CSCue75664

Traceroute fails when CFM maintenance intermediate point (MIP) is configured with default encapsulation.

CSCue91862

Peering is not working for untagged EVC when service instance is configured with default encapsulation.

CSCue94536

The port channel interface flaps when lacp max-bundle is configured and unconfigured.

CSCuf21682

High reconvergence is observed for global traffic in Remote Loop Free Alternate (RLFA).

CSCuf48503

Higher latency is observed for middle priority queue.

CSCuf49860

Configuration of backup peer on primary xconnect, after bringing up remote peer backup results in flap.

CSCue90786

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.

CSCug61006

Auto-select is not working on the Gigabit Ethernet (0/4) port.

For combo ports, shutdown or no shutdown on the interface is mandatory while changing the media type from RJ45 to auto-select and auto-select to RJ45 respectively.

CSCug91477

Strom control filter for the port channel does not show the discarded counters.

CSCue27148

Console hangs when verify command is executed on two telnet sessions.

CSCue45003

ASR901 strom control filter does not support current counters value in show storm output.

CSCuh11479

ASR 901 CFM MIP does not respond with correct tag for LTM encapsulation but uses EVC encapsulation.

CSCue65843

On executing the show version command, an error message stating that Licensing infrastructure is not initialized is displayed.

CSCuh51097

Error disable recovery state does not persist for the second time on fiber port even after the error recovery interval.

CSCuh64499

Cisco ASR 901 series router crashes while defaulting the interface.

CSCtz34776

Random IP or UDP packets sent to the LB interface are getting punted to CPU.

CSCug76869

Traceback is seen after configuring EVC with encapsulation range.

CSCug92777

On Layer 3, multicast traffic are punted to CPU even when storm control drops all the packets.

CSCui29488

Write memory configuration causes ISIS BFD flap with multicast traffic punting to CPU.

CSCuh11698

When more than four ports are connected to a peer where the ports are administratively up, the interface which detects a link up event takes the license first. Hence, the behavior of ports is non predictable. The first port which detects the link up will take the license and the other port may not get a valid license.


Resolved Caveats

This section provides information about the resolved caveats for the Cisco ASR 901 router running Cisco IOS Release 15.3(3)S.

Bug ID
Description

CSCue22409

Connectivity Fault Management (CFM) continuity check message (CCM) packets are tagged with egress interface tag, instead of CFM configured interface tag.

CSCue67669

It is not possible to configure default encapsulation only on the CE facing interface. This brings down the CFM session.

CSCue68363

Pseudowire Emulation Edge to Edge (PWE3) statistics shows wrong values after the Resource Reservation Protocol-Traffic Extension (RSVP-TE) primary path failure.

CSCue72819

Traceroute is not working when Connectivity Fault Management (CFM) up Maintenance Endpoint (MEP) is configured with default encapsulation under xconnect.

CSCuf06812

Invalid encapsulation type warning is displayed when EVC is configured under port channel.

CSCuf16106

Traceroute is not working when CFM down MEP is configured with default encapsulation.

CSCue88662

Un-configuring or changing the split-horizon for bridge-domain fails.

CSCud79447

Auto negotiation is disabled on reload when speed is configured on gigabit ethernet port.

CSCuf60651

Multicast IS-IS control packets on changing the network to point to point results in experimental four bit classification on the peer.

CSCug86309

Copying files from one router to another router using Gigabit Ethernet ports displays timed out error.

CSCug91444

Strom control filter for port channel does not display block or forward message for both the member links.

CSCud28848

Error messages are displayed when you configure double tagged (QinQ) with EoMPLS on ASR 901.

CSCud33454

Unexpected behavior of the interface when Resilient Ethernet Protocol (REP) features are configured with 10 Gigabit Ethernet interface in 1 Gigabit Ethernet mode.

CSCud70245

ASR 901 does not log pstorm_ether_pak_tx in a proper syslog format. Also, the error does not log a traceback for debugging.

CSCue03430

ASR 901 crashes over a period of time.

CSCue78182

ASR 901 Precision Time Protocol (PTP) Boundary Clock (BC) is not working with ASR 903 PTP BC. PTP stops working after some time and keystone CPU utilization goes to upto 100%.

CSCuf25253

In a Remote LFA-FRR Ring set up, every flap in primary or backup path will trigger the Layer 3 tunnel resource leak in the hardware.

Over the span of time, when the layer 3 interface table gets full due to the leak, we start seeing the pstorm errors on all the nodes where the ring comes up with Remote LFA sessions.

Once the table is full, we see the following pstorm error messages during every flap:

"*Mar 13 08:12:24.267: pstorm_bcm_prog_backup_adj_entry:576: bcmx_mpls_tunnel_initiator_set failed. Err: -6 Label= 0

*Mar 13 08:12:24.271: pstorm_mfi_backup_adj_endchain_add:1415: pstorm_bcm_prog_adj_entry failed"

CSCuf51632

In the Cisco ASR 901 series router, the frames with size more than 1518 are dropped on a 10 GigabitEthernet port in 1 GigabitEthernet mode.

CSCug00066

MAC table does not flush after REP topology change.

CSCug37348

Traffic from the directly connected host (Node B) over the newly provisioned EFP, which is terminated on routed the SVI with the VRF configuration, is not forwarded/processed.

CSCug61041

The rewrite ingress tag pop 1 symmetric command has no effect.

CSCug31555

During multiple reloads, REP interface moves to two-way or fail state.

CSCuh21201

Ten Gigabit Ethernet interface output counters show twice the actual value.

CSCug47968

VLAN tag is added for untagged traffic received on default encapsulation during ethernet looback.


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

•Cisco ASR 901 Series Aggregation Services Router Series MIB Specifications Guide

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 15.3(3)S

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