Caveats in Cisco IOS XE 3.13S Releases
Caveats describe unexpected behavior. Severity 1 caveats are the most serious caveats. Severity 2 caveats are less serious. Severity 3 caveats are moderate caveats and only select severity 3 caveats are included in this chapter.
This section describes caveats in Cisco IOS XE 3.13S releases. The following information is provided for each caveat:
- Symptom—A description of what is observed when the caveat occurs.
- Conditions—The conditions under which the caveat has been known to occur.
- Workaround—Solutions, if available, to counteract the caveat.
The Dictionary of Internetworking Terms and Acronyms contains definitions of acronyms that are not defined in this document:
http://docwiki.cisco.com/wiki/Category:Internetworking_Terms_and_Acronyms_(ITA)
Bug Search Tool
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 Search Tool.
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Caveats
The following sections describe the open and resolved caveats in 3.10S Releases:
Open Caveats—Cisco IOS XE Release 3.13.7S
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CSCvb24913 |
ASR903 - Last reload reason can be misleading |
CSCur98481 |
Service unsupported-transceiver does not change the behavior |
Resolved Caveats—Cisco IOS XE Release 3.13.7S
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CSCus82338 |
In loose mode uRPF ipv4/6 traffic dos not get dropped for NUll0 interface |
Open Caveats—Cisco IOS XE Release 3.13.6S
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CSCur94076 |
RSP1 soak : WP_IwSystemBuild() returing Error on Soak test |
CSCur98481 |
service unsupported-transceiver does not change the behavior |
CSCut93166 |
Last IMA Link Added Stuck in DOWN State on Delete and Add Few Links |
CSCuq19919 |
Nsn_hsby data traffic is observing on Standby link in RSP2 |
Resolved Caveats—Cisco IOS XE Release 3.13.6S
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CSCuv73613 |
Policy shaping 90% is not working for QOS in egress-RSP1 |
CSCux81666 |
Policy shaping 90% is not working in egress direction |
CSCuw57376 |
External alarms cleared on 2nd SSO |
Open Caveats—Cisco IOS XE Release 3.13.5S
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CSCux21020 |
BGP/BFD session goes down on REP interface state change |
CSCun30277 |
"show platform hardware pp active feat cef database prefix" CLI remove |
CSCur94076 |
RSP1 soak : WP_IwSystemBuild() returing Error on Soak test |
CSCup76962 |
RSP2:IOMD traceback @mcprp_spa_tdl_marshal_err |
CSCur98481 |
service unsupported-transceiver does not change the behavior |
CSCut93166 |
Last IMA Link Added Stuck in DOWN State on Delete and Add Few Links |
CSCun10191 |
ATM:IFMGR-3-DUP_IFINDEX: Duplicate ifIndex error msg on stby |
CSCuq32740 |
TDM System Test : Traceback pointing to IMA on reload on PE |
CSCuq11133 |
ASR903: TDM IM crash on ISSU rolling upgrade |
CSCuq19919 |
Nsn_hsby data traffic is observing on Standby link in RSP2 |
Resolved Caveats—Cisco IOS XE Release 3.13.5S
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CSCuv57383 |
RSP1: In rare situations, mpls is not enabled in hardware after upgrade |
CSCuv30635 |
RSP1: standby rsp led not glowing post ISSU |
Open Caveats—Cisco IOS XE Release 3.13.4S
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CSCuv67090 |
ASR903 Egress InterfaceID Misprogrammed from MPLS to IP path |
CSCur94076 |
RSP1 soak : WP_IwSystemBuild() returing Error on Soak test |
CSCuw39821 |
ASR903 acting as MVPN 'P' device duplicates multicast traffic |
CSCuw06487 |
%SYS-2-CHUNKBADMAGIC: Traceback on router when using PTP |
CSCuv30635 |
RSP1: standby rsp led not glowing post ISSU |
CSCup76962 |
RSP2:IOMD traceback @mcprp_spa_tdl_marshal_err |
CSCur98481 |
service unsupported-transceiver does not change the behavior |
CSCut93166 |
Last IMA Link Added Stuck in DOWN State on Delete and Add Few Links |
CSCuq32740 |
TDM System Test : Traceback pointing to IMA on reload on PE |
CSCuq11133 |
ASR903: TDM IM crash on ISSU rolling upgrade |
Resolved Caveats—Cisco IOS XE Release 3.13.4S
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CSCut86756 |
"sh platf hardware pp active acl ipv6 name ACL_OUT" shows incorrect o/p |
CSCut86740 |
Egress IPV6 ACL doesn't work on router reload |
CSCus70811 |
Cannot configure bridge domain with id more than max bridge domains |
CSCut33723 |
error counters getting incremented on ports which are down |
CSCuv37266 |
PPPoE sessions not getting established across VPN betwn 903(RSP2) and 9K |
CSCuu10463 |
Traffic is getting drop over TEFP after dynamic range modification |
CSCut08392 |
Array Boundary violation in code. |
CSCur69542 |
Crash @nile_mc_handle_prefix_L2_and_not_L3 |
CSCut84743 |
IGMPSN is taking more memory consumption on high scale in latest MCP |
CSCut92954 |
RSP1 : IPv6 traffic doesnt flow over VPLS |
CSCuu64975 |
10 gig port goes down at remote side once the system locked after reboot |
CSCuv39362 |
BFD flaps during RFC2544 test |
CSCuu35013 |
Crash seen when qos is applied on EVC with encap untagged |
CSCuu56931 |
Outdrops seen on ten gig interface that is not part of l2 connectivity. |
CSCut02011 |
ASR-902, ASR-903 & ASR-920 show interface transceiver is not dependable |
CSCup07145 |
Error log seen @ quack_main.c:quack_write: write failed:. |
CSCut99827 |
IMA Group Up Though Far-end Signalled Insufficient Links Group State |
Open Caveats—Cisco IOS XE Release 3.13.3S
There are no open defects in Cisco IOS XE Release 3.13.3S.
Resolved Caveats—Cisco IOS XE Release 3.13.3S
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CSCus60787 |
ACL counter does not work when applying IPv6 ACL to BDI intf on egress. |
CSCut40156 |
IPV6 ACL causes LDP down and ospf flap. |
CSCut28876 |
xconnect uni-directional traffic when new xconnect built or moved. |
CSCut03279 |
OC12/3: Forwarding alarm for CESOP does not propagate. |
CSCus97020 |
The router crashes on configuring Ethernet loopback. |
CSCur83200 |
Policy on encapsulation default not working. |
CSCus60755 |
The router crashes due to memory leak. |
CSCur77326 |
TenGig interface remains down with EVC configuration. |
CSCus62460 |
BGP flap when Ping is sent continuously at 18 mbps. |
CSCus16433 |
Incorrect values in entSensorThresholdEvaluation for SPA subslot sensors. |
CSCus98172 |
GLC-EX-SMD | %SFF8472-3-THRESHOLD_VIOLATION |
CSCup71022 |
WANPHY: incorrect behavior with L-RDI and UNEQ-P alarm inject. |
Open Caveats—Cisco IOS XE Release 3.13.2S
This section documents the unexpected behavior that might be seen with the Cisco ASR 900 router in Cisco IOS XE Release 3.13.2S.
ACR ATM: unconfiguring and configuring followed by SSO multiple issues are seen.
ASR 903:WANPHY:incorrect behavior with L-RDI and UNEQ-P alarm inject.
ASR 903: TDM IM crash on ISSU rolling upgrade.
ASR 903 TenGig interface remains down with EVC configuration.
RPF-Failure packets are not filtered by IPv4 ACL applied over SVI.
ASR 903- CPU generated L2/L3 packets not sent via proper queues on egress.
Incorrect values in entSensorThresholdEvaluation for SPA Subslot Sensors.
Resolved Caveats—Cisco IOS XE Release 3.13.2S
This section documents the issues that have been resolved in Cisco IOS XE Release 3.13.2S.
ASR 903: Local ping fails with Host queue node in stuck state.
TLDP not up over PW.
Bulk sync failure in case of ingress QoS policy on CEM-ACR interface.
Traffic drop due to wrong PW programming.
ASR 903: Error handling in uea_mpls_frr_modify_flcd.
Crash after SNMP polls transceiver information.
Image upgrade using reload command causing FP reset and stuck in init state.
Disable VASI related commands on ASR 903.
ARP not generated in VRF when MPLS packet received from POS/TDM interface.
Open Caveats—Cisco IOS XE Release 3.13.1S
This section documents the unexpected behavior that might be seen with the Cisco ASR 900 router in Cisco IOS XE Release 3.13.1S.
The router crashes and reloads in a multi-D scale environment.
Resolved Caveats—Cisco IOS XE Release 3.13.1S
This section documents the issues that have been resolved in Cisco IOS XE Release 3.13.1S.
Multicast traffic stops flowing over pseudowire after changing the configuration. ThetTraffic does not resume till reloaded.
CMAND logs are filled with invalid function call messages after reload.
Group specific query forwarded by the Layer 3 interface is not sent out of the router.
Ping failure observed when HSRP configured Standby module is taken over from Active module.
Issues with MTU settings on POS interface are observed on the router.
OIDs for the USB-Ports, Network-Management-Port and the CPU are not seen on the standby RSP.
The RSP1A module crashes when mVPN configuration is used but SDM profile remains default instead of mvpn_rsp1a.
Symptom: With a third party APS, the router interprets traffic incorrectly wrongly causing a APS revert to working port while protect port should remain active.
Track unicast on router using commands
1. show platform hardware pp active feature cef database ipv4 10.0.0.2/32 0
2. show platform hardware pp active feature multicast database ipv4 table 0 226.0.0.4/32 3.
3.show platform hardware pp active adjmgr l3m_print_nh_handle 0x342014d8
Error messages observed on router followed by traceback on issuing show interfaces transceiver detail command.
Open Caveats—Cisco IOS XE Release 3.13S
This section documents the unexpected behavior that might be seen with the Cisco ASR 900 router in Cisco IOS XE Release 3.13S.
Symptom: Delay request packets stop after moving to FREQ_LOCKED state.
Conditions: This issue occurs after moving to the FREQ_LOCKED state.
Workaround: There is no workaround.
Symptom: Crash observed on the router after clearing the counters and logging buffer.
Conditions: This issue occurs after clearing the counters and logging buffer.
Workaround: There is no workaround.
Symptom: For port-channel interface, broadcast packets incorrect values during SNMP MIB query.
Conditions: This issue occurs during SNMP MIB query.
Workaround: There is no workaround.
Symptom: Router crash observed after overnight interface flaps. The protocol flaps and continuous churn is network is observed.
Conditions: This issue occurs when overnight network churn occurs.
Workaround: There is no workaround.
Symptom: High convergence observed during local interface shutdown with remote LFA is configured.
Conditions: This issue occurs when remote LFA is configured.
Workaround: There is no workaround.
Symptom: BGP goes down after recreating the POS interface.
Conditions: This issue occurs after the recreating the POS interface.
Workaround: Perform a shutdown followed by a no shutdown of the POS interface.
Symptom: IPV6 traffic (both up and downstream) is taking traffic hit of 2200 msec but IPV4 traffic took normal hit (well under the committed down time of 50 msec)
Conditions: This issue occurs after performing ISSU upgrade.
Workaround: There is no workaround.
Symptom: Traffic does not flow when IMA PVP is configured and SSO is performed.
Conditions: This issue occurs when incorrect MPLS labels are configured and SSO is performed.
Workaround: There is no workaround.
Symptom: Cross connect configuration goes down after performing an SSO after an OIR.
Conditions: This issue occurs after performing and SSO after an OIR.
Workaround: Perform an IM OIR.
Symptom: Missing alarms observed on transceiver module.
Conditions: This issue occurs on the RJ45 ports with 8-port Cu 1xGE IM + 1-port SFP 1x GE (Copper combination) IM inserted on RSP2 chassis.
Workaround: Shutdown all the unused ports on this IM.
Symptom: Traffic loss observed after performing SSO post IM OIR.
Conditions: This issue occurs after performing an SSO post IM OIR.
Workaround: Reload the router.
Symptom: Match_efp egress policy-map replication does not happen on all member-links for port-channel Ids from 17 to 64
Conditions: This issue occurs on port-channel Ids from 17-64.
Workaround: Apply policy-map on all the member-links.
Symptom: PFM failure occurs while changing the mode from LAN to WAN on the AA900-IMA2Z IM.
Conditions: This issue was observed on the AA900-IMA2Z IM. It is an intermittent issue.
Workaround: Reconfigure the LAN mode to WAN mode.
Symptom: High convergence observed on SSO for MR-APS CEM configuration. Traffic does not resume completely on all configured circuits.
Conditions: This issue occurs on performing an IM OIR or controller shutdown or an APSs force prior to SSO The issue may also be seen on repeated SSO.
Workaround: Perform a APS SSO.
Symptom: IPV6 MH-BFD session fail to come up when there is ECMP path to prefix.
Conditions: This issue occurs when IPV6 MH-BFD session fails if there is ECMP path.
Workaround: There is no workaround.
Symptom: ISIS goes down following heavy traffic hitting management port(70 mbps). CPU spike was also observed.
Conditions: The issue occurs following a loop in the management network and excess of 70 mbps traffic hits the management port.
Workaround: Reload the chassis.
Resolved Caveats—Cisco IOS XE Release 3.13S
This section documents the issues that have been resolved in Cisco IOS XE Release 3.13S.
Symptom: Traffic failure observed for some of prefixes which are learned through BGP.
Conditions: This issue occurs when a sheer load (more than 100 PE’s) of next hops with recurring routes are learned on the router with BGP PIC enabled.
Workaround: Disable BGP PIC.
Symptom: MPLS MTU cannot be configured on an interface that is not programmed in the hardware.
Conditions: This issue occurs when MPLS MTU is configured on an interface; MPLS MTU value is not programmed in the hardware and a packet larger than MPLS MTU value is allowed.
Workaround: Use IP MTU or interface MTU instead of MPLS MTU.
Symptom: IPv4 Labelled BGP traffic drops on the router.
Conditions: This issue is observed for a few prefixes post reload.
Workaround: There is no workaround.
Symptom: Tx and Rx power values are incorrectly displayed on OC-3 interface module.
Conditions: This issue occurs on the OC-3 interface module.
Workaround: Hard OIR of the OC-3 interface module.
Symptom: Multicast traffic is not sent over BDI interface with IGMP snooping is enabled.
Conditions: This issue occurs when IGMP snooping is enabled.
Workaround: Disable IGMP snooping.
Symptom: Crash observed on the router after executing the show interface pseudowire command.
Conditions: This issue occurs after executing the show interface pseudowire command.
Workaround: There is no workaround.
Symptom: The ONS-SC-155-EL optic is not recognized when inserted in OC-3 IM.
Conditions: This issue occurs when the ONS-SC-155-EL optic is inserted in OC-3 IM. An error message is displayed on the console that the transceiver is not supported The optic is detected in show inventory command output.
Workaround: There is no workaround.
Symptom: Ping fails when ARP type becomes "UNKNOWN".
Conditions: This issue occurs when the router is configured for ZTP and the IP address is issued from the DHCP server.The ARP type on the router connected to the ASR 901 router interface becomes "UNKOWN".
Workaround: Perform a shutdown followed by a no shutdown of the ASR 901 router (interface vlan), or execute the clear arp-cache command.
Symptom: After application of a QoS policy-map on an interface, continuous increase in output drop counters on the interface is observed despite there being no traffic through the interface
Conditions: This issue occurs on the router with port-channel configurations with QOS applied.
Workaround: Remove the QoS configurations.
Symptom: Auto Negotiation configuration on Fiber ports is not retained.
Conditions: This issue occurs on IM OIR or chassis reload.
Workaround: Do not disable Auto Negotiation property on the fiber ports. Else reconfigure or disable the Auto Negotiation on the ports manually.
Symptom: A critical alarm is observed on the FPGA port 0/5/0.
Conditions: This issue occurs after performing an SSO.
Workaround: There is no workaround.
Symptom: Class-map filter modification does not work for an un-installed policy-map.
Conditions: This issue occurs when a policy-map is configured with 2 classes. When the class-map filter is modified, the filter modification is rejected.
Workaround: Remove the class from the policy-map and modify.
Symptom: Memory leak observed during ASP switchover.
Conditions: This issue occurs when APS switch is performed.
Workaround: There is no workaround.
Symptom: Interface Module goes to Out of service state.
Conditions: This issue occurs on performing an ISSU when there is a IM FPGA change between the releases.
Workaround: Perform IM FPGA upgrade using the package file and proceed with ISSU.
Symptom: Process memory usage gradually increases over time when storm control is enabled on the router.
Conditions: This issue is observed when storm control feature is enabled on the router.
Workaround: There is no workaround.
Symptom: DHCP packets get dropped on the transparent node between client and server.
Conditions: This issue occurs when global DHCP snooping is enabled on the transparent node.
Workaround: Disable the global DHCP snooping command.
Symptom: Bandwidth percentage does not work on changing the port speed.
Conditions: This issue occurs after changing the port speed with sequence.
Workaround: There is no workaround.
Symptom: Bulk sync failure seen on DAI API using ip arp inspection filter nag bridge-domain static command.
Conditions: This issue occurs when DAI is configured using the using ip arp inspection filter nag bridge-domain static command. After routed reload is not accepted and not synchronized to standby.
Workaround: After switchover or router reload, reconfigure the command.
Symptom: Router crash observed with reload as RP-Reset.
Conditions: There is no specific trigger or condition under which this may occur.
Workaround: There is no workaround.
Symptom: FMAN FP logs filled with error messages.
Conditions: This issue occurs on reload.
Workaround: There is no workaround.
Symptom: Inter VRF ping failure observed in route leak.
Conditions: This issue occurs while pinging other VRF prefix in different a VRF.
Workaround: There is no workaround.
Symptom: Crash observed after a failover during the MPLS labels processing.
Conditions: This issue was observed when R-LFA and BGP PIC is configured in the RING topology and optimum scale prefix (with global and VRF prefix) is set.
Workaround: There is no workaround.
Symptom: Small buffer and IDB leak seen with PIM registers on a Cisco router.
Conditions: This issue was first observed with PIM registers egressing a BDI interface.
Workaround: Block PIM registers using boundaries.
Symptom: IP TV does not working with RSP1B Video template.
Conditions: This issue occurs when BDI numbers greater than 4000 is configured.
Workaround: Configure BDI numbers lesser than or equal to 4000.
Symptom: Core interface ping failure observed when system has 7 Layer3 port-channels configured.
Conditions: This issue occurs when the a 10 GE IM is inserted in slot 1on the router.
Workaround: There is no workaround.