Caveats

This chapter describes open and resolved severity 1 and 2 caveats and select severity 3 caveats:

  • The “Open Caveats” sections list open caveats that apply to the current release and may apply to previous releases. A caveat that is open for a prior release and is still unresolved applies to all future releases until it is resolved.

  • The “Resolved Caveats” sections list caveats resolved in a specific release, but open in previous releases.

The bug IDs are sorted alphanumerically.


Note


The Caveats section includes the bug ID and a short description of the bug. For details on the symptoms, conditions, and workaround for a specific caveat you must use the Bug Search Tool.


Resolved Caveats – Cisco IOS XE Bengaluru 17.6.8

Identifier

Headline

CSCwj82056

Smart Licensing is not getting auto-registered while upgrading the node.

Open Caveats – Cisco IOS XE Bengaluru 17.6.8

There are no open caveats in this release.

Resolved Caveats – Cisco IOS XE Bengaluru 17.6.7

Identifier

Headline

CSCwi75499

Lost CEM circuit configuration after reboot

Open Caveats – Cisco IOS XE Bengaluru 17.6.7

There are no open caveats in this release.

Resolved Caveats – Cisco IOS XE Bengaluru 17.6.6a

Identifier

Headline

CSCwh87343

Cisco IOS XE Software Web UI Privilege Escalation Vulnerability

Open Caveats – Cisco IOS XE Bengaluru 17.6.6a

There are no open caveats in this release.

Resolved Caveats – Cisco IOS XE Bengaluru 17.6.6

Identifier

Headline

CSCwd78618

IMASER14A/S does not boot on router.

CSCwe38959

The RS232 ASYNC pseudowire service with full scale seeing packet and byte drops intermittently.

CSCwf40953

DS3_ADMIN_DOWN gets cleared after IM OIR.

CSCwf86864

CEM traffic flow is dropped in one direction due to DEI bit set from router.

CSCwf49426

PAIS alarm get reported after IM OIR.

CSCwe54549

SFP not detected due to checksum error.

CSCwe27336

Error logs during reload in ASR920-24SZ-M variant.

CSCwh02460

With x.21 configured observing underruns in cem counters.

CSCvy81362

Controllers are down due to LP-LOP alarm After CE reboots.

CSCwf07736

CEM interface counters momentarily report error when x21 xconnect is cleared and re-established.

CSCwd46121

Time stamp issue on Transparent clock for 1G PORTS.

CSCwd67723

In IMA32D/IMA8D card, sometimes change in E1 controller config(after ctrlr flap)results in IM reboot.

CSCwf71463

With traffic ON, when speed lowered on ASYNC port, SYNC port CEM traffic gets impacted.

CSCwe98227

The show version does not display details of T1/E1 interfaces for 8D and 32D IMs.

Open Caveats – Cisco IOS XE Bengaluru 17.6.6

Identifier

Headline

CSCwh12668

Standard loopback is not working when applied on both the ends on a back to back link.

CSCwa40025

IMA3G card high temperature due to dynamic fan algorithm.

Resolved Caveats – Cisco IOS XE Bengaluru 17.6.5

Identifier

Headline

CSCwc41135

Continuous assertion and clear of LAIS on protect channel causing IPC failure

CSCwc80493

APS - K2 byte not reflecting proper value during LRDI and LAIS conditions.

CSCwd04198

A900-IMASER14A/S: when configurations are pasted in a specific order, line config is missing

CSCwc41115

APS 1+1 Uni - Tx K2 to reflect Rx K1 channel number

CSCwc84627

ASR-920-12SZ-IM - EOMER IM goes continous reboot for a PCIE bus error

CSCwd48164

EVPN statd resource leak after protocol flaps

CSCwc93296

ASR-920-10SZ-PD /16.9.4/port Te0/0/10 went admin down after in successive reload

CSCvy09725

Software solution to detect the BAD PSU

CSCwc79322

Memory leak on ptpd_uea process

CSCwd26357

rs485 with half-duplex configuration when reloaded, it gets into default full-duplex mode

Resolved Caveats – Cisco IOS XE Bengaluru 17.6.5 - Platform Independent

Identifier

Headline

CSCwd66936

UDP pseudowire stuck in Activating

CSCwc21402

Invalid BGP update when add-paths negotiated only for label (SAFI 4) and not unicast (SAFI1)

CSCwb91762

RSP3: MSPW VC down points to Error Local access circuit is not ready for label advertise

CSCwb77093

A BGP speaker may advertise a next-hop set to self when advertising an eBGP route to an iBGP peer.

Open Caveats – Cisco IOS XE Bengaluru 17.6.5

Identifier

Headline

CSCwd90840

Multicast data traffic is getting dropped over vpls

CSCwc77502

Unexpected reload due to MLDPv6

CSCwd67723

In IMA32D/IMA8D cards, any changes in the E1 interface configs (after interface flapping) results in IM crash and reboot

CSCwd16666

The Bit Error Rate Testing (BERT) pattern does not sync while configuring network loop in 3GMS OC-3 ports

Open Caveats – Cisco IOS XE Bengaluru 17.6.5 - Platform Independent

Identifier

Headline

CSCwc55520

Traceback and IDB leak noticed when a RSP3 setup performs a switchover

CSCvy94083

NCS4216:Running configuration syn to the NETCONF running data store takingmor time .

CSCvy87800

Remote LInk Failure notification is disabled when configuring through YANG

CSCwb43369

ASR920::Traceback seen when default made on all core intfs.

Resolved Caveats – Cisco IOS XE Bengaluru 17.6.4

Identifier

Headline

CSCwb01284

ASR 900 Series PTP Sync degraded on Tester after primary PTP source failover to secondary

Resolved Caveats – Cisco IOS XE Bengaluru 17.6.4 - Platform Independent

There are no resolved caveats in this release.

Open Caveats – Cisco IOS XE Bengaluru 17.6.4

Identifier

Headline

CSCwc60168

Traffic drop in primary/active path when changes are made on backup path

Open Caveats – Cisco IOS XE Bengaluru 17.6.4 - Platform Independent

Identifier

Headline

CSCwa30653

MVPN Profile 14 : Data MDT traffic not flowing with 2 paths when OSPF cost configured on 1 path

Resolved Caveats – Cisco IOS XE Bengaluru 17.6.3

Identifier

Headline

CSCvz42622

TPOP T1 SATOP : Cable length range needs to be changed to be consistent with the IMA48D/IMA3G

CSCvy78284

ASR920 will crash when zeroised RSA key is regenerated

CSCwa35351

Raw-socket config-event use all the iomem when L1 is down

CSCwa59045

Need to support few line level CLIs with "no" even without any cable attached.

CSCwa79398

rs232 service on port8 gives SLIP errors when databits is set on other ports

CSCwa09302

iMSG serial interfaces bitrate/sec data is displayed incorrectly in show command output

CSCwa04795

Interfaces are showing up in SNMP polling while associated Hardware Does not Exists on System

CSCvy92074

MTU programming for mpls l2 vc may fail after interface flaps

CSCvz27117

linux_iosd_image crash seen during router reload

CSCwa41638

ASR920 MAC Table and L2VPN EVPN Table out of sync

Resolved Caveats – Cisco IOS XE Bengaluru 17.6.3 - Platform Independent

Identifier

Headline

CSCwa37283

RSP failover on NCS4200 showing several seconds of outage for L2VPN services

Open Caveats – Cisco IOS XE Bengaluru 17.6.3

There are no open caveats for this release.

Open Caveats – Cisco IOS XE Bengaluru 17.6.3 - Platform Independent

Identifier

Headline

CSCwb04551

FRR not calculating backup route due to "primary_update_complete_pending:" flag set to 1

CSCwa30653

MVPN Profile 14 : Data MDT traffic not flowing with 2 paths when OSPF cost configured on 1 path

CSCwa36608

ICCP stuck on CONNECTING state after RSP SO on Active PoA

Resolved Caveats – Cisco IOS XE Bengaluru 17.6.2

Caveat ID Number

Description

CSCvy64788

LLC frames get looped back due to autonomic networking

CSCvy91436

Egress QoS classification issues are seen with Service instance 2 configuration on CE facing interfaces

CSCvz07477

DWDM SFPs threshold value set to 0.0 dbm for RX/TX and -0.0 C for temperature.

CSCvz26979

DHCP packets are not forwarded from client to server when DHCP snooping is enabled globally

CSCvz79672

HQoS on egress TenGig interface does not work properly

Resolved Caveats – Cisco IOS XE Bengaluru 17.6.2 - Platform Independent

Caveat ID Number

Description

CSCvz66346

New Bridge-Domain are not added dynamically to POCH when TEFP-encap from-bd is configured

CSCvz25471

NSO config push failure seen due to getconf on BD gives additional value mac learning

Open Caveats – Cisco IOS XE Bengaluru 17.6.2

Caveat ID Number

Description

CSCvy78284

Router crashes when zeroised RSA key is regenerated

CSCvz52848

Raw-socket config-event use all the iomem if connected device L1 signals are down

Resolved Caveats – Cisco IOS XE Bengaluru 17.6.1

Caveat ID Number

Description

CSCvs50029

Interface flaps and input errors seen with optics GLC-FE-100BX-D

CSCvu78738

T3 counter names to be as per GR-820 standard names

CSCvv21542

Command to change from dynamic to static FAN algorithm for the router

CSCvv42595

REP flapping is seen randomly and frequently due to port down

CSCvv47918

Block SATOP when controller is looped remotely (far end) for ACR/UPSR/CPG/STS1e

CSCvv55842

DEI bit on C-TAG is not being preserved for Double tag to Double tag svc even if there is no rewrite

CSCvv74638

RSP2-128: IMA1X frequent link down

CSCvv62123

FPGA TX tables are not programmed for microbfd session after router reload in 17.4.1 release

CSCvv73275

Applique type, syslog are misleading when a path configured with t3 is over-written with STSnC mode

CSCvv74342

VPLSoBKPW: MAC is not flushed or withdrawn in remote peer on VC swichover from active to standby

CSCvv99456

ACL entries with FRAGMENT keywords are not working on the router

CSCvw08879

EVPN-IRB: Complete traffic drop seen in one direction after intf flap on spine or leaf with XE-XR interop

CSCvw32263

Router is not going for shutdown when device booted without fan tray

CSCvw56612

LOTR : show lic command does not show port details

CSCvw64784

RSP2 CEM ACR: Not able to reuse same clock ID on another controller after you delete clock ID

CSCvw82333

Continuous PCI role logging to trace file

CSCvx41010

Failed to marshal xcvr_sync message: Bad address

CSCvr43362

NCS 4202: Fan speed control measures for overheating router

Open Caveats – Cisco IOS XE Bengaluru 17.6.1

Caveat ID Number

Description

CSCvy92074

MTU programming for MPLS Layer 2 VC may fail after interface flaps

CSCvz02352

Error objects are seen in mlist area

CSCvy74356

In T3 controller-CT3 E1 and CT3 mode the loopback local is not getting applied and the controller stays down

Cisco Bug Search Tool

Cisco Bug Search Tool (BST), the online successor to Bug Toolkit, is designed to improve effectiveness in network risk management and device troubleshooting. You can search for bugs based on product, release, and keyword, and aggregates key data such as bug details, product, and version. For more details on the tool, see the help page located at http://www.cisco.com/web/applicat/cbsshelp/help.html