Caveats

Caveat List

This chapter describes open severity 1 and 2 caveats and select severity 3 caveats.

The Open Caveats section lists 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 bug IDs are sorted alphanumerically.

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.


Note


Starting with 17.6.1a Release Notes, the Open and Resolved Caveats include common software items that may affect the Cisco cBR-8 product. The Open and Resolved Caveats include generic IOS-XE 17.9.1 software items in addition to Cisco cBR-8 items.


Open Caveats for Cisco IOS XE Dublin 17.12.1z6

There are no new open caveats in the Cisco IOS XE Dublin 17.12.1z6 release.

Resolved Caveats for Cisco IOS XE Dublin 17.12.1z6

There are no new resolved caveats in the Cisco IOS XE Dublin 17.12.1z6 release.

Open Caveats for Cisco IOS XE Dublin 17.12.1z5

Identifier

Headline

CSCwh79605

unconfiguring and configuring DS controller prof with OFDM causes D31 CMs showing p-online

CSCwk79871

Unable to achieve max const DS tx rates above 8Gbps w 2x100G DPIC and a D4.0 modem

CSCwm43427

MaxRate incorrect for mixed modulation OFDM channels

CSCwm45781

"no cable us-scheduler bwr-drop ..." has no effect

CSCwm59957

ofdma-prof-mgmt downgrade partial-hold-down 0, but able to see partial hold-down timer

CSCwm64082

CBR8: Transmit Peak power field for D30 modems to be upd correctly in scm phy us-pwr <ref> cli

CSCwm75107

childless-delete-objects of active SUP might prevent new CPEs from getting an IP address

CSCwn43877

Command "show cable modem <> asf" Does Not Work with IP Address Input

CSCwn70490

L2-DOCSIS: cbr8 rcc/mdd/fiber-node dcid mismatch with cable downstream-channel-id automatic

CSCwn83045

cwerr downgrade iuc after adding in modulation profile not updated in show cmd after rxmer poll

CSCwo27005

ICMTS: NCP ZBL mismatch with more than 1024 zero bit-load sub-carriers

CSCwo56830

'show int wideband-cable' output might show decreasing values on Wi interfaces

CSCwo72081

L2VPN Enabled CMs Unable to Come Online with mdf-disable

CSCwp96634

Line card restart as the device is stuck in gcd_num

CSCwq21211

DS-JIB RECOVERABLE BG vld but BG address table vld bit is zero

CSCwq44663

US Dynamic Power Ceiling - After DBC to 10 upstream channel bonding, assigned ubg mismatch with SF ubg in 'scm serv ver' after mdm down/upgrade

CSCwq97496

cBR-8 - TenG ports remain down post upgrade to 17.12.1z2

CSCwr60465

Video QAM incorrectly on RFID in Wideband-Cable Interface

CSCws05831

Silent reload on DPIC (CBR-DPIC-8X10G / 17.12.1y) with no logs.

Resolved Caveats for Cisco IOS XE Dublin 17.12.1z5

Identifier

Headline

CSCwk77077

Race condition leads to RCC reconciliation accessing freed RCC data

CSCwn90763

Supervisor unexpected reload with AQM enabled

CSCwo45678

IPv6 ACL drops packets that do not match deny ACE

CSCwo87976

After linecard switchover some modems are stuck on OFDM profile 0

CSCwp97565

CM Enters reject(c) state when sending DHQoS CM Capability TLV

CSCwr56087

DOCSIS 3.1 layer 3 loss to modem after OFDM downstream profile failure and load-balance move

Open Caveats for Cisco IOS XE Dublin 17.12.1z4

Identifier

Headline

CSCwo27005

NCP ZBL mismatch with more than 1024 zero bit-load sub-carriers

CSCwo45678

IPv6 ACL drops packets that do not match deny ACE

CSCwo55245

UTSC capture does not show data beyond 160Mhz with full traffic on ICCAP CLC

CSCwo56830

'show int wideband-cable' output might show decreasing values on Wi interfaces

CSCwo72081

CMs Unable to Come Online with mdf-disable

Resolved Caveats for Cisco IOS XE Dublin 17.12.1z4

Identifier

Headline

CSCwj73634

Full or partial 9800 configuration loss after HA SSO failover

CSCwo75108

SNMP walk o/p missing few valid us entries for docsIf3CmtsSignalQualityExtExpectedRxSignalPower MIB

Open Caveats for Cisco IOS XE Dublin 17.12.1z3

Identifier

Headline

CSCwn31184

DS D3.1 wcm using ofdm WB select rfch 12 instead of 11

CSCwn42918

OFDMA channel may operate in TaFDM mode despite exclusion band

CSCwn91911

Kobol-R Linecard Reload Due to Large US PHY Log File in /tmp/cc

CSCwn48309

Failure to read SFP status in DPIC blocks reading of remaining SFP modules

CSCwn90672

RPD provisioned with IPV4 failed to come online under Auxilary (video core)

CSCwo05753

The REPM process causing RPD database synchronization issue

CSCwo08275

Unmatched RPD configuration: DevID 1, should be 0

CSCwn43877

Command "show cable modem < > asf" Does Not Work with IP Address Input

CSCwn70490

L2-DOCSIS: cbr8 rcc/mdd/fiber-node dcid mismatch with cable downstream-channel-id automatic

CSCwn76720

RBG Throttle nb-to-rbg-rate value of 1 not working

CSCwn90763

Supervisor unexpected reload with AQM enabled

Resolved Caveats for Cisco IOS XE Dublin 17.12.1z3

Identifier

Headline

CSCwn93518

cBR8 - Slow pending-ack-update clearing of existing objects

CSCwn99904

DS Resil moves CMs to NB: Reporting both 32ch and 40ch Pools Exhausted

Open Caveats for Cisco IOS XE Dublin 17.12.1z2

Identifier

Headline

CSCwh79605

unconfiguring and configuring DS controller prof with OFDM causes D31 CMs showing p-online

CSCwm12199

scm phy ofdm-profile downstream prof-count command not working properly

CSCwm43427

MaxRate incorrect for mixed modulation OFDM channels

CSCwm45781

"no cable us-scheduler bwr-drop ..." has no effect

CSCwm59957

ofdma-prof-mgmt downgrade partial-hold-down 0, but able to see partial hold-down timer

CSCwm64082

CBR8: Transmit Peak power field for D30 modems to be upd correctly in scm phy us-pwr &lt;ref&gt; cli

CSCwm70573

CBR-CCAP-LC-40G linecard crash due to FPA buffer exhaustion

CSCwm75107

childless-delete-objects of active SUP might prevent new CPEs from getting an IP adress

CSCwm87833

Low latency traffic flow is incorrect with USASF from Cable modem

Resolved Caveats for Cisco IOS XE Dublin 17.12.1z2

Identifier

Headline

CSCwk78059

Stale AQP Entries on CLC after LCHA

CSCwk82376

TDL leak @masked_8bit_range_param during CM flapping if cm config file includes tos classifier

CSCwk97606

CBR: %CMTS_INFRA-3-NORES_BG_EXCD: ubr_dmp_resource_alloc:No More Resources:BG-Pool 40-Chan:pool-id

CSCwk98902

cBR8 - IOSd RP memory leak

CSCwm09837

AQP lookup failing at initial CM registration

CSCwm29699

Linecard crash with "ELEMENT_TMPFS_WARNING" logs

CSCwm29800

cBR-8 - OFDM PLC channel interrupted when SC-QAM is suspended by resiliency

CSCwm35985

CBR8: DS-JIB RECOVERABLE [Enq:Low-Pri:IPH header says BG vld but BG address table vld bit is zero

CSCwm45718

Kobol-R: WB configuration issue with cross controller

Open Caveats for Cisco IOS XE Dublin 17.12.1z1

Identifier

Headline

CSCwj23935

cpp-mcplo-ucode core observed after active sup comes up

CSCwk33790

no OCD/DPD info in 'show interfaces cable &lt;&gt; controller' w cfg change and disable/enable d31-mode

CSCwk41748

Tx msgs is greater than Prod Msgs but Tx retry counter 0 when kafka cluster connection flapping

CSCwk43319

%CBR-4-NOCFGFILE: Cannot read modem config file - constant errors

CSCwk59645

upstream ofdma DBC fails after lcpr iosd

CSCwk75758

SUP reload @rphy_cfg_malloc_tmp_entry during flapping CIN network

CSCwk78059

Stale AQP Entries on CLC after LCHA

CSCwk79035

NDR status of RPDs showing failure in TLV-95-Status when Provison all RPDs at a time

CSCwk79871

Unable to achieve max const DS tx rates above 8Gbps w 2x100G DPIC and a D4.0 modem

Resolved Caveats for Cisco IOS XE Dublin 17.12.1z1

Identifier

Headline

CSCvy84961

show cable video snmp-alarms port number 32

CSCwc44477

Random Multicast groups stopped working after upgrading to 17.3.1x from 16.7.4

CSCwh11813

UCD message reaches RPD during LCSW but not during LCREV

CSCwi38218

Incorrect output counter with 'show interface bundle'

CSCwi44532

cBR-8 - Trustpoint missing in crypto library

CSCwj50627

cBR8 NB-to-RBG rate has long delay before reaching correct value

CSCwj60858

CBR8:docsIf31CmtsUsOfdmaChanTargetRxPower must include rf port base power in reporting

CSCwj69389

Observed sup unexpected reload after remove the logical edge device

CSCwj72667

Updates to show tech-support cmts queuestuck

CSCwj78998

Lots of chunk memory leak entries for IPDR_EXP_PROC when ipdr exporter connection-active configured

CSCwj80774

Node Names displayed on 'show platform software kman R0 kafka stats' is truncated

CSCwj80789

show platform software kman R0 database broker_tbl displays partial info

CSCwj80984

Support STM internal show command

CSCwj86468

BPI does not work after iosd restart

CSCwj91362

scm subscriber Total Time Online is Invalid

CSCwj92280

cBR8 - Supervisor unexpected reload after shutting a Downstream-Video Controller

CSCwj93098

CBR8: DsOfdmProfileStatus MIB reports DS Resiliency data not in sync with CM ofdm prof mgmt data

CSCwj93147

Kafka callback functions may cause KMAN reload when kman_kafka btrace is enabled

CSCwj94708

SNMP PNM Enable config is disabled on linecard after reload.

CSCwj99667

SUP unexpected reload-PuntInject after boot up

CSCwk00309

SUP Reloads after polling information from ifXTable 1.3.6.1.2.1.31.1.1 via SNMP query

CSCwk03030

US-PMA: CPUHOG and kman restart with invalid bootstrap config and "show kman database broker_tbl"

CSCwk06780

KMAN show broker command can't accept broker name including special characters

CSCwk09246

Apply AQM Params from SCN to US SFs

CSCwk09375

CMTS keeps print "%CBR-4-BADCFGFILE: Modem config file: No CMTS MIC"

CSCwk20166

the modem can't get online with the docsis1.0 cm config file

CSCwk20384

Profile Failure While DBC in Progress: Profile Appears in Both Current and Unfit Profile Lists

CSCwk24073

Broker state kept UP after server down &missed telemetry data not retransmitted after server recover

CSCwk31575

smand process reload @ sps_kernel_trans_proto_cb & sup reload after showing kernel tcp brief

CSCwk33254

CBR8: Decode is wrong for OPT-RSP TLVs with status = Testing

CSCwk44205

CM reject(c) when using SCN that matches configured AQP entry

CSCwk55537

Add ASF special handling to "show cable modem qos service-class"

CSCwk56375

PLATFORM_INFRA-5-IOS_INTR_OVER_LIMIT

CSCwk56416

Total Time Online under show cable modem subscriber displays random value after iosd process restart

CSCwk59708

CBR: Memory Leak Issue in cce-class-group when CM flaps

CSCwk64718

Increase number of token buckets for queue protection

Open Caveats for Cisco IOS XE Dublin 17.12.1y

Identifier

Headline

CSCwj56450

netconf-yang doesn't work after perform ISSU from 17.06.1z1 to 17.12.1y

CSCwi38218

Incorrect output counter with show interface bundle'

CSCwj69389

Observed sup unexpected reload after remove the logical edge device

CSCwc44477

Random Multicast groups stopped working after upgrading to 17.3.1x from 16.7.4

CSCwi21760

LED core file is observed when script performing sup switchover(sso)

CSCwi44532

cBR-8 - Trustpoint missing in crypto library

CSCwj80783

State info on show platform software kman R0 kafka stats is very difficult to relate to Node Names

CSCwj80789

show platform software kman R0 database broker_tbl displays partial info

CSCwj83026

SNMP PNM RxMER data length is incorrect in OSSI File when pnm-rxmer-intercept enabled

Resolved Caveats for Cisco IOS XE Dublin 17.12.1y

Identifier

Headline

CSCwe12147

cbr8 enhancement: implement automatic recovery of US ch stuck in UMP Failure

CSCwi70553

Generating VIDMAN core file on active sup after the LED reload operation.

CSCwi62553

static LB cannot balance when config dynamic WB, rcc-template and legacy WB under mac-domain

CSCwj42964

Two SUPs run different images, can reach SSO if boot stby-SUP twice

CSCwi69834

OpSim: 'cable managed fiber-node' not always deleted from 'interface CableX/Y/Z'

CSCwi62034

LLD: Some Parameters Cannot Be Configured for US AQP

CSCwj54381

PNM UTS capture MIB UtscCfgWindow default value 4 not align the spec rectangular 2

CSCwi12835

cBR8 - ndf/ndr issue after LCHA event

CSCwh01662

cBR8 packets going through RXQ may cause attn-sync failure

CSCwj41660

AQM configured on static service flows with dynamic service flow create/delete unexpected reload

CSCwi61872

docsIfCmtsChannelUtUtilization MIB refresh for US SCQAM and OFDMA Channels less than 30 secs

Open Caveats for Cisco IOS XE Dublin 17.12.1x

Identifier

Headline

CSCwi62553

static LB cannot balance when config dynamic WB, rcc-template and legacy WB under mac-domain

CSCwi62034

LLD: Some Parameters Cannot Be Configured for US AQP

CSCwf69010

Few dvb tier sessions are pending/off state after LCHA along with sequence of operations.

Resolved Caveats for Cisco IOS XE Dublin 17.12.1x

Identifier

Headline

CSCwi47716

cBR-8 - LC High CPU due to BIPC connection flap

CSCwh63169

cBR8 Admission Control missing from Wideband interfaces on 1 linecard

CSCwi10780

OFDMA: Add command to control use of delay queue for Equalization Probes

CSCwi55579

cBR-8 - Supervisor crash after line card reload

CSCwi07444

ISSU with patch file failed with error sed: character class syntax is [[:space:]], not [:space:]

CSCwh34129

2 OFDMA channel are allowed to have the same frequency range

CSCwh94982

If RPD reported the location before with different value, need to update the DB

CSCwh95891

rpd location config removed unexpectedly and stale db entry left after replacing or delete RPD-ID

CSCvw17802

CBR8 unexpected reload when handling classifier

CSCwi59289

Add software reset enhance for kobol-r PLL3 NMI issue

CSCwi04178

OFDMA: re-implement 50 ms equalization probe delay with delay queue fix.

CSCwi10780

OFDMA: Add command to control use of delay queue for Equalization Probes

CSCwh49964

Change TLV 100.24.2.2 to 4 bytes

CSCwh70860

Deleting Packet Data for Second DBC-REQ, while handling the re-transmitted DBC-RSP for the first DBC

CSCwh77694

CBR SUP unresponsive due to dropping low priority injects from IOS to CPP

CSCwh92987

RPHY ofdma rfch status still AdminUP/OperUP with freq range from valid to invalid change

Open Caveats for Cisco IOS XE Dublin 17.12.1w

Identifier

Headline

CSCwh89354

memory leaks are observed on SUP

CSCwh26336

Free buffer pool 0 is at 0 percent low level - cdman FPA

CSCwh01662

cBR8 packets going through RXQ may cause attn-sync failure

CSCwh70860

Deleting Packet Data for Second DBC-REQ, while handling the re-transmitted DBC-RSP for the first DBC

CSCwh63169

cBR8 Admission Control missing from Wideband interfaces on 1 linecard

Resolved Caveats for Cisco IOS XE Dublin 17.12.1w

Identifier

Headline

CSCwf81087

OUDP: show cable oudp-leak-detect test-sessions not showing 2-digit rfch correctly

CSCwh51285

cBR-8 line card reload - LCHA BPI isidkey assign incorrect, v17.6.1z

CSCwh89302

BIPC down when SUP IOS CPU High

CSCwh56244

modems DBC during stby LC booting failed ping after LCHA

CSCwf90009

cbr8 LLD CM drop-policy changes from PIE to TAIL_DROP unexpectedly

CSCwf06216

refine 1588 time jump threshold

CSCwh01330

Update min-bw-req 0 0 to ensure the min MAP size is at least 64B with 4 IEs

CSCwh49283

Mismatch for DSG tunnel DSID between SUP and LC on certain mac-domains

CSCwh48807

cBR-8 LC Crash Packet pointer pak in cdman process corrupted

CSCwh54873

Standby LC continues reboot after LCHA and reload LC

CSCwd75787

VIDEO: Video process excessive cpu when L3 WAN failure while multicast source switching

CSCwf59850

after shutdown/no shutdown MD and SUPHA, CM downstream traffic block

CSCwf69351

[17.12.1] show cable modem &lt;mac&gt; ver | i Online - cminstp-&gt;total_online_time' not synced over LCHA

CSCwf97834

StandbySUP reload after write or copy run start

CSCwh55217

LLD CM Fails to Come Online when Performing AQP Expansion with Identical AQP and SCN Names

CSCwf29330

Secondary SUP reload twice while performing ISSU from 17.9.1y to 17.12.1

CSCwf83643

CCF Throughput Step-Down Observed with High Speed SFs, software workaround.

CSCwh72364

CBR8 // 17.9.1y // SNMP request for RPHY LatencyLastVal shows zero

CSCwh13286

On a RHY setup, before adding exclusion band requires shutting down all the OFDMA channels

Open Caveats for Cisco IOS XE Dublin 17.12.1

Identifier

Headline

CSCwe92069

docsIf31CmtsCmRegStatusUsProfileIucList will return all channels in MD when modem assigned subset

CSCwf76924

cbr8 downstream performance drop caused by ToS range change

CSCwf22103

SRv6 not working on 1712_THROTTLE image

CSCwf60272

All video session lost on a single LED from one linecard with "VDMAN_IPC_FLOW_CONTROL" errors

CSCwd75787

VIDEO: Video process excessive cpu when L3 WAN failure while multicast source switching

CSCwh03865

Drop policy given an invalid scheduling queue/wred 0/0 -Traceback=1#b2262001573a0a77095872b84ebf6

CSCwf97834

SUP 5 reload(CBR-CCAP-SUP-160G) during change in PIC RF frequencies.

CSCwf69010

Few dvb tier sessions are pending/off state after LCHA along with sequence of operations.

Resolved Caveats for Cisco IOS XE Dublin 17.12.1

Identifier

Headline

CSCwd86228

cBR-8 Enhance driver log output of adm1266 to suppress useless message

CSCwd83290

D31 ipdr - UsOfdmaProfileStatus template missing entries for some CMs in setup with 200+modems

CSCwe70788

OUDP reserved bandwidth is not shown after LCHA

CSCvu68909

DSG not working on MAC domain after remove/add RPD with OPS config and mismatch between SUP and LC

CSCwe72875

OUDP has duplicate "ACTIVE" state sessions after LCHA

CSCwe88741

Downstream Controller is using the DEPI Unicast instead of using a v6 multicast address.

CSCwe04403

ICMTS OFDMA Ether-trap generated log file with no file limit and getting too big

CSCwe28432

Supervisor reload due to abnormal TLV of upstream channel response

CSCwe54152

OFDMA: Change to downgrade to partial modem when invalid RxMER data (all 0xFFs) is received

CSCwd73296

Disallow standby SUP bootup if it runs different image with Active SUP under non-ISSU state

CSCwe73266

Some DS-JIB channels stuck after LCHA due to channels were disabled in JIB

CSCwe94717

RBG interfaces lose "no snmp trap link-status" config

CSCwc17414

Bulk sync failure seen during ISSU upgrade from 17.6.1z to 17.9.1

CSCwe04707

RPHY: GCP KA timeout always defaulting to 16 seconds when interval is set to 4

CSCwe24159

docsPnmCmtsUsOfdmaRxMerEntry memory leak in IOSd

CSCwe23605

"no snmp trap link-status" line is removed from the interface Wideband-CableX/X/X:x

CSCwe78523

OFDMA: Change output of "show cable modem &lt;modem&gt; prof upstream verb | graph" to start at start SC.

CSCwe65945

cBR-8 // 17.6.1x // rf-channel power-adjust inconsistency

CSCwd83662

stby sup crash during modify aux core

CSCwe90443

Multiple IOMD_BULK_SYNC_TRACKER messages being received on system

CSCwd51884

Changes to OFDM DS Controller-Profile can potential Config cmd-line corruption on large scale system

CSCwe11072

CBR8: 'scm partial-mode ofdma' lists all upstream partial modems (D3.0 and D3.1)

CSCwe61182

cBR8 - Continuous printing of log message CABLE IOSD Port Error

CSCwe30064

cBR-8 No L2 multicast traffic on a single mcast group in a single SG on a single Wideband Interface

CSCwe93934

SPECSVL IPC busy in cdman

CSCwd82679

OPS RBG WB interface loses RF config after SUP SO

CSCwe00625

BGSYNC_ERR:snmp_bg_sync_handle_packet:paramset expected data_size:140, but process len 236

CSCwe13912

cBR8 ARP-autoreply may generate excessive error messages when modems flap

CSCwe65419

LC memory leak @ ubr_ucd_copy_ofdma_scband_a2a & ubr_ucd_copy_mslot_mod_group_a2a

CSCwe06946

OUDP: OFDMA ctrlr-profile rapid shut/no-shut can block modem participation in test session

CSCwe51191

Cable linecard crash Reason: integer divide by zero

CSCwe93623

OFDMA: Current IUC doesn't match Recommended IUC after modem reset with OUDP sess and fix verb data

CSCwe61130

NVRAM Trusted CA certificates fail to load after upgrade to 17.6.1x; modems to become rejected

CSCwe31388

CBR linecard unexpected reload in PKTIO thread

CSCwd08687

Intermittent issue with LACP failure

CSCwe78495

Active LC crashed after LC switchover with OUDP enabled

CSCwf04631

cBR8 - CLI "test platform hardware slot r0 oir remove" resets LC0

CSCwe73438

cable socket connection print error log

CSCwe86939

remove dependency on "service internal" for "cable us-scheduler bwr-drop ..."

CSCwe44525

PNM: docsPnmCmtsUtscCapab returns invalid output through SNMP

CSCwe12317

CLC0 in booting state while CLC3 showing low watermark logs Slot0 downloaded configuration for slot3

CSCwd83462

duplicate PNM Sessions will be send to RPD for each connected Core

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