Introduction

The Cisco Application Centric Infrastructure (ACI) is an architecture that allows the application to define the networking requirements in a programmatic way. This architecture simplifies, optimizes, and accelerates the entire application deployment lifecycle. Cisco Application Policy Infrastructure Controller (APIC) is the software, or operating system, that acts as the controller.

This document describes the features, issues, and limitations for the Cisco APIC software. For the features, issues, and limitations for the Cisco NX-OS software for the Cisco Nexus 9000 series switches, see the Cisco Nexus 9000 ACI-Mode Switches Release Notes, Release 16.0(1).

For more information about this product, see "Related Content."

Date

Description

September 29, 2025

The Miscellaneous Compatibility Information table was updated to indicate support for 4.3.6.250053 CIMC HUU ISO for UCS C225 M6 (APIC-L4/M4) with the related software advisory notice.

June 16, 2024

In the Miscellaneous Compatibility Information section, added support for 4.3.2.250016 CIMC HUU ISO for UCS C220/C240 M5 (APIC-L3/M3).

May 1, 2024

In the Miscellaneous Compatibility Information section, added support for 4.3.2.240009 CIMC HUU ISO for UCS C220/C240 M5 (APIC-L3/M3) and UCS C225 M6 (APIC-L4/M4).

January 11, 2023

In the Hardware Compatibility Information section, removed APIC-M1 and APIC-L1. The last date of support was October 31, 2021.

November 18, 2022

In the Open Issues section, added bug CSCwc66053.

October 14, 2022

Release 6.0(1j) became available. Added the resolved bugs for this release.

August 1, 2022

In the Miscellaneous Compatibility Information section, added:

●  4.2(2a) CIMC HUU ISO (recommended) for UCS C220/C240 M5 (APIC-L3/M3)

●  4.1(2k) CIMC HUU ISO (recommended) for UCS C220/C240 M4 (APIC-L2/M2)

July 13, 2022

Release 6.0(1g) became available.

New Software Features

Product Impact

Feature

Description

Base Functionality

BGP autonomous system (AS) enhancements

Cisco APIC now supports the Remove Private AS option to remove private autonomous system numbers from the AS_path in an eBGP route, and supports the AS-Path match clause while creating a BGP per-peer route-map.

For more information, see the Cisco APIC Layer 3 Networking Configuration Guide, Release 6.0(x).

Breakout port support with the Cisco N9K-C93600CD-GX and N9K-C9316D-GX switches

Dynamic and auto breakout ports are now supported with the Cisco N9K-C93600CD-GX and N9K-C9316D-GX switches.

For more information, see the Cisco APIC Layer 2 Networking Configuration Guide, Release 6.0(x).

Support for BFD on secondary IPv4/IPv6 subnets

Bidirectional Forwarding Detection (BFD) is now supported for static routes that are reachable using secondary IPv4/IPv6 subnets that are configured on routed interfaces. This feature was originally introduced in the 5.2(4) release and is now available in the 6.0 releases.

For more information, see the Cisco APIC Layer 3 Networking Configuration Guide, Release 6.0(x).

Support for PTP G.8275.1 on remote leaf switch peer links and on vPCs

You can now use the PTP Telecom profile (G.8275.1) on virtual port channels (vPCs) and on remote leaf switch peer links.

For more information, see the Cisco APIC System Management Configuration Guide, Release 6.0(x).

Ease of Use

SPAN extended filter entries

You can now configure extended filter entries for filter groups in a SPAN session, which enable you to monitor traffic originating from access nodes in leaf nodes.

For more information, see the Cisco APIC Basic Configuration Guide, Release 6.0(x).

Support for remote pools with a subnet mask of up to /28

Remote leaf switches now support remote pools with a subnet mask of up to /28. In prior releases, remote leaf switches supported remote pools with a subnet mask of up to /24.

For more information, see the Cisco APIC Basic Configuration Guide, Release 6.0(x).

Weight-based symmetric policy-based redirect (PBR)

In weight-based symmetric PBR, you can set weights for a PBR destination (service node) based on the capacity of the service node, and traffic is load balanced based on the set weights.

For more information, see the Cisco APIC Layer 4 to Layer 7 Services Deployment Guide, Release 6.0(x).

Interoperability

Support for SyncE on vPCs and on remote leaf switch peer links

You can now use SyncE on vPCs and on remote leaf switch peer links.

For more information, see the Cisco APIC System Management Configuration Guide, Release 6.0(x).

Security

Cisco Nexus 9000 switch secure erase

Cisco Nexus 9000 switches utilize persistent storage to maintain system software images, switch configuration, software logs, and operational history. Each of these areas can contain user-specific information such as details on network architecture and design, and potential target vectors for would-be attackers. The secure erase feature enables you comprehensively to erase this information, which you can do when you return a switch with return merchandise authorization (RMA), upgrade or replace a switch, or decommission a system that has reached its end-of-life.

For more information, see the Cisco APIC Getting Started Guide, Release 6.0(x).

Support for a user group map rule for SAML and OAuth 2

Authentication by an external server for SAML and OAuth 2 is based on user group map rule information, in addition to the standard CiscoAVpair-based authentication.

For more information, see the Cisco APIC Security Configuration Guide, Release 6.0(x).

Transport Layer Security version 1.3 support

Transport Layer Security (TLS) version 1.3 is now supported. This feature was originally introduced in the 5.2(5) release and is now available in the 6.0 releases.

New Hardware Features

For the new hardware features, see the Cisco Nexus 9000 ACI-Mode Switches Release Notes, Release 16.0(1).

Changes in Behavior

For the changes in behavior, see the Cisco ACI Releases Changes in Behavior document.

Open Issues

Click the bug ID to access the Bug Search tool and see additional information about the bug. The "Exists In" column of the table specifies the 6.0(1) releases in which the bug exists. A bug might also exist in releases other than the 6.0(1) releases.

Bug ID

Description

Exists in

CSCwr21481

Bootstrap of APIC-SERVER-L4/M4 fails with "exit status 1, Failed to get CIMC chassis info with the CIMC address ” when CIMC is running 4.3.5 and above.

6.0(1g) and later

CSCvg81020

For strict security requirements, customers require custom certificates that have RSA key lengths of 3072 and 4096.

6.0(1g) and later

CSCvm56946

Support for local user (admin) maximum tries and login delay configuration.

6.0(1g) and later

CSCvt99966

A SPAN session with the source type set to "Routed-Outside" goes down. The SPAN configuration is pushed to the anchor or non-anchor nodes, but the interfaces are not pushed due to the following fault: "Failed to configure SPAN with source SpanFL3out due to Source fvIfConn not available".

6.0(1g) and later

CSCvy40511

Traffic from an endpoint under a remote leaf switch to an external node and its attached external networks is dropped. This occurs if the external node is attached to an L3Out with a vPC and there is a redistribution configuration on the L3Out to advertise the reachability of the external nodes as direct-attached hosts.

6.0(1g) and later

CSCvz72941

While performing ID recovery, id-import gets timed out. Due to this, ID recovery fails.

6.0(1g) and later

CSCwa58709

The GIPo address is only visible on APIC 1 when using the command "cat /data/data_admin/sam_exported.config". The command output from the other APICs outputs do not show the GIPo address.

6.0(1g) and later

CSCwc66053

Preconfiguration validations for L3Outs that occur whenever a new configuration is pushed to the Cisco APIC might not get triggered.

6.0(1g) and later

CSCwd26277

When deploying a service graph, the dialog does not list all bridge domains for the provider connector. This issue is observed when you enter or edit the bridge domain name in the consumer connector field. After this, the provider connector will only list the bridge domain that is selected by the consumer connector field.

6.0(1g) and later

CSCwe19885

The Nexus Insights application cannot stream the telemetry data to NDI, even though the Cisco ACI site is registered and active.

6.0(1g) and later

CSCwe52465

The NICC app image fails to load.

6.0(1g) and later

CSCwe58398

This is added functionality for upgrade show command.

1. acidiag show postupgrade -service <dme>   -> This gives details for dmes and which shard still have pending postUpgradeCb.

2.acidiag show postupgrade -service <dme> -shard <shard_id> -> This gives the details of log path for the dmes and shard for which postUpgradeCb has been completed.

6.0(1g) and later

CSCwe92155

After configuring syslog using TCP on port 59500, the logit was sent out normally and netstat showed that it was established. However, after aborting the connection from the syslog server side, the TCP connection went from ESTABLISHED to CLOSE_WAIT and disappeared from the APIC side.

6.0(1g) and later

CSCwe93045

There is general slowness when an application contacts the Cisco APIC cluster through the REST API. The same slowness is experienced when accessing using the Cisco APIC GUI.

6.0(1g) and later

CSCwf16927

The system time does not reflect the daylight saving adjustments done in Egypt for releases prior to 5.3.1 and 6.0.4

6.0(1g) and later

CSCwf54771

User configuration is missing on APICs and switches following an ungraceful reload or power outage.

6.0(1g) and later

CSCwf55317

1.     Go to Tenant > Application Profile > Topology.

2.     Drag and drop a contract. Problem 1: No pop up displays.

Drag and drop an EPG icon, then cancel the create view. Problem 2: The pop up remains open.

6.0(1g) and later

CSCwf59938

Fault code F1414 is triggered and cleared manually. After certain time, the fault is triggered again. This issue occurs when using the syslog server FQDN.

6.0(1g) and later

CSCwf92856

During upgrade "deserialization error" is seen on APIC 1 PD.

6.0(1g) and later

CSCwh05135

Override vpc interface policy doesnot consistently take precedence over regular vpc interface policy.Upon a leaf reload, its quite random which policy takes precedence, and accordingly the vlans get programmed.If the override or regular AEP is missing the relevant domain association/vlans, then those vlans are not programmed causing outages.

6.0(1g) and later

CSCwh07037

An outage occurred because traffic coming from the TEPs was dropped by the receiving leaf switches with INFRA_ENCAP_SRC_TEP_MISS.

6.0(1g) and later

CSCwh17898

The "panic: runtime error: invalid memory address or nil pointer dereference." Error occurred and then F1419 (Service kron failed on apic) was raised.

6.0(1g) and later

CSCwh18649

Inter-pod/Inter-site BGP peer is incorrectly marked as "manual,wan" under the BGP for the peer managed object of a spine switch.

6.0(1g) and later

CSCwh28834

The "show running config" command does not work in the APIC CLI and generates the following errors:

Error while processing mode: interface

Error while processing mode: leaf

Error while processing mode: configure

Error: ERROR occurred: <class 'xml.etree.ElementTree.ParseError'>, not well-formed (invalid token): line 1, column 51242,   File "/mgmt/opt/controller/yaci/yaci/_cfg.py", line 18, in _execute_func

subCmd.runningConfig(ctx, **kwargs)

6.0(1g) and later

CSCwh41632

Enhancement - show apic upgrade complete only after postUpgradeCb is done

6.0(1g) and later

CSCwh41865

When upgrading an APIC, the "from" version is displayed as "to" version in the event record.

6.0(1g) and later

CSCwh44987

When a non-default OOB management EPG is configured and a default one is removed from the configuration, the default EPG will be recreated automatically after a fabric upgrade. This is causes fault F0523 "Configuration failed for EPG default due to Not Associated With Management Zone".

6.0(1g) and later

CSCwh47794

The ACI VMM Tags tab returns "the server returned unintelligible response" message even though the tag is retrievable using the CLI.

6.0(1g) and later

CSCwh53706

In scale setups, when there are more than the usual number of objects and if the user tries to load the Capacity Dashboard page, the page times out. A few queries that are hit from the browser and the page become stuck for few seconds.

6.0(1g) and later

CSCwh53727

The API call /mqapi2/deployment.query.json?mode=getvmmCapInfo that is done against the Cisco APICs by an external management system takes too long to process.

6.0(1g) and later

CSCwh56716

When the Cisco APICs use Direct Connect to CSSM, running the "show license usage" command on APIC 1, 2, or 3 shows ACI_LEAF_ESS_10G 6 in use. When APICs 2 and 3 are restarted, this output is unchanged. When APIC 1 is restarted, the output becomes "No Licenses in use" on APICs 1, 2, and 3. The "Registering for Smart Licensing with Direct Connect to CSSM Using the GUI" process has to be done again.This was tested in the lab with Cisco APIC releases 5.2(6g), 5.2(7g), and 6.0(2j)

6.0(1g) and later

CSCwh67428

The GUI does not display maxSpeed and direction information in the equipment view.

6.0(1g) and later

CSCwh74484

ACI pushes the VLANs from the old VLAN pool after changing the vNIC template in the UCSM

6.0(1g) and later

CSCwh75348

Decommission an APIC causes the message "the node configuration will be wiped out from controller" to display even though the controllers still retain the user configuration.

6.0(1g) and later

CSCwh77285

OpFlex OOM crashes in leaf switches.

6.0(1g) and later

CSCwh78409

The SNMPD service failed on all Cisco APICs after configuring SNMPv3.

6.0(1g) and later

CSCwh81272

The system resets due to a policyelem high availability policy reset.

6.0(1g) and later

CSCwh83273

A Cisco APIC cannot be added to the cluster because the GUI rejects the ID if is not within the range of 1-7.The Initial Setup Configuration states that the fabric ID valid range is 1-128.

6.0(1g) and later

CSCwh84052

When using the OpenStack integration, the Cisco APIC VMM Manager process may consume more memory than is available and then end.

6.0(1g) and later

CSCwh87245

An edmManagedNic or compManagedNic object may be mapped to the wrong server (compHv).

6.0(1g) and later

CSCwh87458

Search Filters in Endpoint - Operational - Client Endpoints do not show up in the endpoint learning filter.

6.0(1g) and later

CSCwh95573

Fault "F4142" is raised when there is inconsistency in FNV and the idmgr database. Even though the addrAssigner in FNV is set to 0 and the corresponding "identContextElement" managed object is missing from the idmgr database, the fault gets raised.

6.0(1g) and later

CSCwh98712

When running "show running-config" from API CLI, the command takes several minutes to complete. Several thousand API requests are seen in access.log querying ptpRsProfile on every static path.

6.0(1g) and later

CSCwi01316

In the following topology:

Tenant 1:

VRF 1 > EPG A, EPG B.  There is an any-to-any Intra VRF instance contract and EPG A and B are providers for an inter-VRF instance contract.

VRF 2 > L3Out or EPG. The VRF instance consumes the inter-VRF instance contract.

Traffic will unexpectedly get sent to the wrong rule when inter-VRF instance traffic is flowing.

6.0(1g) and later

CSCwi03663

Recent upgraded versions of SCP servers do not support some of the old ciphers or host key algorithms causing SCP to/from APIC to break.

6.0(1g) and later

CSCwi06427

Navigating to FABRIC -> Inventory -> Pod1 -> Operational -> Routes -> IPv6 learned routes results in the following error message:Value is not specified for the argument 'undefined'

6.0(1g) and later

CSCwi09894

In a mini ACI fabric, the physical APIC does not join the cluster after power cycling the entire setup.

6.0(1g) and later

CSCwi12992

After upgrade to ACI 5.2(8), the custom SSL certificate is not installed in the Cisco APICs and the default self-signed SSL certificate is used instead.

6.0(1g) and later

CSCwi40671

In a remote leaf switch, when the initial policy download happens, nginx generates a core. The process recovers by itself after a restart. This issue does not have any major functionality impact.

6.0(1g) and later

CSCwi52324

The fault F3227 "ACI failed processing an already accepted configuration change" continuously gets raised

6.0(1g) and later

CSCwi66348

A Cisco ACI switch can spend hours to complete the bootstrap process. At the worst, the expected completion time should be about 90 minutes.

6.0(1g) and later

CSCwi78474

An upgraded Cisco APIC may attempt the second upgrade to same version and assume itself as APIC 1, which can cause all Cisco APICs to stop the postUpgradeCb process, which stops the upgrade.

6.0(1g) and later

CSCwi97842

After upgrading, the Cisco APIC cluster is diverged and policymgr is down and repeatedly crashing on one Cisco APIC.

6.0(1g) and later

CSCwi99378

There are packet drops between the pods.

6.0(1g) and later

CSCwj08117

After a reboot is triggered, any of the Cisco APICs take around 1 hour to reach the cluster fully fit status and the affected DME is ifc_observer. During the issue, there is non-optimal leader for some shards for the service ifc_observer, which it clears after 30 minutes.

6.0(1g) and later

CSCwj13396

ACI switches show in maintenance with the CLI command "acidiag fnvread" on Cisco APIC, but they show "normal" in vsh and even top. System also shows In service.

- Switches do not show up in the GUI nor API for configurations, as APIC vectors it as in maintenance. This severely impacts the ability to make changes.

- Switches may continue to work normally even though no new configurations can be made on them.

6.0(1g) and later

CSCwj17966

The Cisco APIC bootmgr or appliance director allows an incorrect attribute/value update to be received in LLDP TLV due to miscabling.

6.0(1g) and later

CSCwj23752

Changing in the name of the remote-destination group stops the sending of syslog messages to the remote destination. Changing the port number or forwarding facility does not affect the sending of the messages. Only when the name is changed does the leaf switch stop sending the syslog messages. Enabling and disabling the policy does not resume the sending of the messages.

6.0(1g) and later

CSCwj38953

log_bin_decode crashes on distinguished name decoding failures.

6.0(1g) and later

CSCwj42913

REST API can be used to configure static ports for nodes that are restricted in by a node rule.

6.0(1g) and later

CSCwj43407

Altering the IP SLA policy for an IP SLA track member led to the crashing of switches.

6.0(1g) and later

CSCwj55258

Fault F4144 will not clear from the Cisco APIC even with matching dhcpPool and Fabric Node Vector information.

6.0(1g) and later

CSCwj57993

The F0413 PSU fault is not reported by SMART callhome. The tcpdump command on the leaf switch does not show SMTP messages being sent for this fault for which the PSU was removed.

6.0(1g) and later

CSCwj69046

SAML authentication fails when using the HTTPS Proxy 5.2 image.

6.0(1g) and later

CSCwk13546

There are stale hvExtPl objects due to the hvsExtPol managed object not being cleaned up when an EPG is deleted.

Fault F1606 is raised, but has no operational impact:

desc :Fault delegate: Operational issues detected on portgroup error: Cannot find an EPG policy in the domain for the port group.

6.0(1g) and later

CSCwc36551

There are alarms raised on Cisco Nexus Dashboard that report memory leakage in the svc_ifc_ae process on the Cisco APICs.

On the Cisco Nexus Dashboard side:

'anomalyType': 'high_threshold', 'reason': '[ae] : mem usage above threshold (Usage: 5199.82 MB, High-Threshold: 2560.00 MB)

'mnemonicDescription': 'Memory usage above threshold', 'mnemonicNum': 100481, 'mnemonicTitle': 'ENVIRONMENTAL_MEMORY_HIGH_THRESHOLD',

6.0(1g)

CSCwc50398

Licensemgr process crashes on node-1, with Smart license mode being "Direct connection to CSSM” under smart license settings.

6.0(1g) and later

Resolved Issues

Click the bug ID to access the Bug Search tool and see additional information about the bug. The "Fixed In" column of the table specifies the 6.0(1) release in which the bug was first fixed.

Bug ID

Description

Fixed in

CSCwc36551

There are alarms raised on Cisco Nexus Dashboard that report memory leakage in the svc_ifc_ae process on the Cisco APICs.

On the Cisco Nexus Dashboard side:

'anomalyType': 'high_threshold', 'reason': '[ae] : mem usage above threshold (Usage: 5199.82 MB, High-Threshold: 2560.00 MB)

'mnemonicDescription': 'Memory usage above threshold', 'mnemonicNum': 100481, 'mnemonicTitle': 'ENVIRONMENTAL_MEMORY_HIGH_THRESHOLD',

6.0(1j)

CSCvy00746

A breakout parent port shows in the drop-down list for the SPAN source even after the port is broken out.

6.0(1g)

CSCvz83636

For a health record query using the last page and a time range, the GUI displays some health records with a creation time that is beyond the time range (such as 24h).

6.0(1g)

CSCwa53478

After migrating a VM between two hosts using VMware vMotion, EPG does not get deployed on the target leaf node. When affected, the fvIfConn managed object corresponding to the missing EPG can be seen on APIC, but it would be missing from the target leaf node when queried.

6.0(1g)

CSCwa58061

When there are more than 40 objects in the tree and you double click on an object in the BGP Peer table, then the tree does not expand because the tree does not have pagination. The APIC tries to load all objects in one query, which is drastically slows the GUI.

6.0(1g)

CSCwa78740

When HBR is enabled on a source EPG's bridge domain and the subnet is configured with the private scope (advertise externally = FALSE), if there is a shared service EPG contract with an L3Out, the L3Out will not publish the subnet or the corresponding /32 host routes because of this private scope.

In this scenario, if there is also an explicit ESG leakRoute configured for the same subnet across those VRF instances, the leakRoute is faulted because the route is already shared with an EPG contract, and the leakRoute is installed in the hardware along with a pcTag, then the leakRoute should not be processed and any flags under it should not be considered.

But, if this explicit leakRoute has a public scope, the /32 host routes are still published externally out of the L3Out, which should not happen as the leakRoute itself is faulted and bridge domain subnet scope is private.

6.0(1g)

CSCwa90058

When a VRF-level subnet <fvRtSummSubnet> and instP-level subnet <l3extSubnet> with a summary policy is configured for an overlapping subnet, the routes will get summarized by the configuration that was added first. But, the fault on the configuration that was added last will not be shown in the Cisco APIC GUI.

6.0(1g)

CSCwa95297

When a VRF-level subnet, fvRtSummSubnet, exists with a summary policy and an instP level subnet, <l3extSubnet>, with the same subnet as the VRF-level subnet is associated with summary policy, then there won't be any fault seen on the Cisco APIC. The summarization will be done according to the VRF-level subnet <fvRtSummSubnet>.

6.0(1g)

CSCwa99045

VMM domain attachments of floating SVIs configured for dual stack with the same encapsulation and the same VMM domain attachments are not being cleaned up after downgrading from 6.0(1) to an earlier release.

6.0(1g)

CSCwb00781

Importing the routing table of a remote site carries the wrong autonomous system number (ASN).

6.0(1g)

CSCwi34095

App installation fails on the Cisco APIC with the error "Unable to add elasticsearch credentials".

This is seen for any app making use of Elasticsearch, such as Nexus Insight Cloud Connector.

6.0(1g)

Known Issues

Click the bug ID to access the Bug Search tool and see additional information about the bug. The "Exists In" column of the table specifies the 6.0(1) releases in which the bug exists. A bug might also exist in releases other than the 6.0(1) releases.

Bug ID

Description

Exists in

CSCvj26666

The "show run leaf|spine <nodeId>" command might produce an error for scaled up configurations.

6.0(1g) and later

CSCvj90385

With a uniform distribution of EPs and traffic flows, a fabric module in slot 25 sometimes reports far less than 50% of the traffic compared to the traffic on fabric modules in non-FM25 slots.

6.0(1g) and later

CSCvq39764

When you click Restart for the Microsoft System Center Virtual Machine Manager (SCVMM) agent on a scaled-out setup, the service may stop. You can restart the agent by clicking Start.

6.0(1g) and later

CSCvq58953

One of the following symptoms occurs:

App installation/enable/disable takes a long time and does not complete.

Nomad leadership is lost. The output of the acidiag scheduler logs members command contains the following error:

Error querying node status: Unexpected response code: 500 (rpc error: No cluster leader)

6.0(1g) and later

CSCvr89603

The CRC and stomped CRC error values do not match when seen from the APIC CLI compared to the APIC GUI. This is expected behavior. The GUI values are from the history data, whereas the CLI values are from the current data.

6.0(1g) and later

CSCvs19322

Upgrading Cisco APIC from a 3.x release to a 4.x release causes Smart Licensing to lose its registration. Registering Smart Licensing again will clear the fault.

6.0(1g) and later

CSCvs77929

In the 4.x and later releases, if a firmware policy is created with different name than the maintenance policy, the firmware policy will be deleted and a new firmware policy gets created with the same name, which causes the upgrade process to fail.

6.0(1g) and later

CSCvx75380

svcredirDestmon objects get programmed in all of the leaf switches where the service L3Out is deployed, even though the service node may not be connected to some of the leaf switch.

There is no impact to traffic.

6.0(1g) and later

CSCvx78018

A remote leaf switch has momentary traffic loss for flushed endpoints as the traffic goes through the tglean path and does not directly go through the spine switch proxy path.

6.0(1g) and later

CSCvy07935

xR IP flush for all endpoints under the bridge domain subnets of the EPG being migrated to ESG. This will lead to a temporary traffic loss on remote leaf switch for all EPGs in the bridge domain. Traffic is expected to recover.

6.0(1g) and later

CSCvy10946

With the floating L3Out multipath recursive feature, if a static route with multipath is configured, not all paths are installed at the non-border leaf switch/non-anchor nodes.

6.0(1g) and later

CSCvy34357

Starting with the 6.0(1) release, the following apps built with the following non-compliant Docker versions cannot be installed nor run:

·       ConnectivityCompliance 1.2

·       SevOneAciMonitor 1.0

6.0(1g) and later

CSCvy45358

The file size mentioned in the status managed object for techsupport "dbgexpTechSupStatus" is wrong if the file size is larger than 4GB.

6.0(1g) and later

CSCvz06118

In the "Visibility and Troubleshooting Wizard," ERSPAN support for IPv6 traffic is not available.

6.0(1g) and later

CSCvz84444

While navigating to the last records in the various History sub tabs, it is possible to not see any results. The first, previous, next, and last buttons will then stop working too.

6.0(1g) and later

CSCvz85579

VMMmgr process experiences a very high load for an extended period of time that impacts other operations that involve it.

The process may consume excessive amount of memory and get aborted. This can be confirmed with the command "dmesg -T | grep oom_reaper" if messages such as the following are reported:

oom_reaper: reaped process 5578 (svc_ifc_vmmmgr.)

6.0(1g) and later

CSCwa78573

When the "BGP" branch is expanded in the Fabric > Inventory > POD 1 > Leaf > Protocols > BGP navigation path, the GUI freezes and you cannot navigate to any other page.

This occurs because the APIC gets large set of data in response, which cannot be handled by the browser for parts of the GUI that do not have the pagination.

6.0(1g) and later

N/A

Beginning in Cisco APIC release 4.1(1), the IP SLA monitor policy validates the IP SLA port value. Because of the validation, when TCP is configured as the IP SLA type, Cisco APIC no longer accepts an IP SLA port value of 0, which was allowed in previous releases. An IP SLA monitor policy from a previous release that has an IP SLA port value of 0 becomes invalid if the Cisco APIC is upgraded to release 4.1(1) or later. This results in a failure for the configuration import or snapshot rollback.

The workaround is to configure a non-zero IP SLA port value before upgrading the Cisco APIC, and use the snapshot and configuration export that was taken after the IP SLA port change.

6.0(1g) and later

N/A

If you use the REST API to upgrade an app, you must create a new firmware.OSource to be able to download a new app image.

6.0(1g) and later

N/A

In a multipod configuration, before you make any changes to a spine switch, ensure that there is at least one operationally "up" external link that is participating in the multipod topology. Failure to do so could bring down the multipod connectivity. For more information about multipod, see the Cisco Application Centric Infrastructure Fundamentals document and the Cisco APIC Getting Started Guide.

6.0(1g) and later

N/A

With a non-english SCVMM 2012 R2 or SCVMM 2016 setup and where the virtual machine names are specified in non-english characters, if the host is removed and re-added to the host group, the GUID for all the virtual machines under that host changes. Therefore, if a user has created a micro segmentation endpoint group using "VM name" attribute specifying the GUID of respective virtual machine, then that micro segmentation endpoint group will not work if the host (hosting the virtual machines) is removed and re-added to the host group, as the GUID for all the virtual machines would have changed. This does not happen if the virtual name has name specified in all english characters.

6.0(1g) and later

N/A

A query of a configurable policy that does not have a subscription goes to the policy distributor. However, a query of a configurable policy that has a subscription goes to the policy manager. As a result, if the policy propagation from the policy distributor to the policy manager takes a prolonged amount of time, then in such cases the query with the subscription might not return the policy simply because it has not reached policy manager yet.

6.0(1g) and later

N/A

When there are silent hosts across sites, ARP glean messages might not be forwarded to remote sites if a leaf switch without -EX or a later designation in the product ID happens to be in the transit path and the VRF is deployed on that leaf switch, the switch does not forward the ARP glean packet back into the fabric to reach the remote site. This issue is specific to transit leaf switches without -EX or a later designation in the product ID and does not affect leaf switches that have -EX or a later designation in the product ID. This issue breaks the capability of discovering silent hosts.

6.0(1g) and later

N/A

Typically, faults are generally raised based on the presence of the BGP route target profile under the VRF table. However, if a BGP route target profile is configured without actual route targets (that is, the profile has empty policies), a fault will not be raised in this situation.

6.0(1g) and later

N/A

MPLS interface statistics shown in a switch's CLI get cleared after an admin or operational down event.

6.0(1g) and later

N/A

MPLS interface statistics in a switch's CLI are reported every 10 seconds. If, for example, an interface goes down 3 seconds after the collection of the statistics, the CLI reports only 3 seconds of the statistics and clears all of the other statistics.

6.0(1g) and later

Virtualization Compatibility Information

This section lists virtualization compatibility information for the Cisco APIC software.

·       For a table that shows the supported virtualization products, see the ACI Virtualization Compatibility Matrix.

·       For information about Cisco APIC compatibility with Cisco UCS Director, see the appropriate Cisco UCS Director Compatibility Matrix document.

·       This release supports the following additional virtualization products:

Product

Supported Release

Information Location

Microsoft Hyper-V

●  SCVMM 2019 RTM (Build 10.19.1013.0) or newer

●  SCVMM 2016 RTM (Build 4.0.1662.0) or newer

●  SCVMM 2012 R2 with Update Rollup 9 (Build 3.2.8145.0) or newer

N/A

VMM Integration and VMware Distributed Virtual Switch (DVS)

6.5, 6.7, and 7.0

Cisco ACI Virtualization Guide, Release 6.0(x)

Hardware Compatibility Information

This release supports the following Cisco APIC servers:

Product ID

Description

APIC-L2

Cisco APIC with large CPU, hard drive, and memory configurations (more than 1000 edge ports)

APIC-L3

Cisco APIC with large CPU, hard drive, and memory configurations (more than 1200 edge ports)

APIC-M2

Cisco APIC with medium-size CPU, hard drive, and memory configurations (up to 1000 edge ports)

APIC-M3

Cisco APIC with medium-size CPU, hard drive, and memory configurations (up to 1200 edge ports)

The following list includes general hardware compatibility information:

·       For the supported hardware, see the Cisco Nexus 9000 ACI-Mode Switches Release Notes, Release 16.0(1).

·       Contracts using matchDscp filters are only supported on switches with "EX" on the end of the switch name. For example, N9K-93108TC-EX.

·       When the fabric node switch (spine or leaf) is out-of-fabric, the environmental sensor values, such as Current Temperature, Power Draw, and Power Consumption, might be reported as "N/A." A status might be reported as "Normal" even when the Current Temperature is "N/A."

·       First generation switches (switches without -EX, -FX, -GX, or a later suffix in the product ID) do not support Contract filters with match type "IPv4" or "IPv6." Only match type "IP" is supported. Because of this, a contract will match both IPv4 and IPv6 traffic when the match type of "IP" is used.

The following table provides compatibility information for specific hardware:

Product ID

Description

Cisco UCS M4-based Cisco APIC

The Cisco UCS M4-based Cisco APIC and previous versions support only the 10G interface. Connecting the Cisco APIC to the Cisco ACI fabric requires a same speed interface on the Cisco ACI leaf switch. You cannot connect the Cisco APIC directly to the Cisco N9332PQ ACI leaf switch, unless you use a 40G to 10G converter (part number CVR-QSFP-SFP10G), in which case the port on the Cisco N9332PQ switch auto-negotiates to 10G without requiring any manual configuration.

Cisco UCS M5-based Cisco APIC

The Cisco UCS M5-based Cisco APIC supports dual speed 10G and 25G interfaces. Connecting the Cisco APIC to the Cisco ACI fabric requires a same speed interface on the Cisco ACI leaf switch. You cannot connect the Cisco APIC directly to the Cisco N9332PQ ACI leaf switch, unless you use a 40G to 10G converter (part number CVR-QSFP-SFP10G), in which case the port on the Cisco N9332PQ switch auto-negotiates to 10G without requiring any manual configuration.

N2348UPQ

To connect the N2348UPQ to Cisco ACI leaf switches, the following options are available:

Directly connect the 40G FEX ports on the N2348UPQ to the 40G switch ports on the Cisco ACI leaf switches

Break out the 40G FEX ports on the N2348UPQ to 4x10G ports and connect to the 10G ports on all other Cisco ACI leaf switches.

Note: A fabric uplink port cannot be used as a FEX fabric port.

N9K-C9348GC-FXP

This switch does not read SPROM information if the PSU is in a shut state. You might see an empty string in the Cisco APIC output.

N9K-C9364C-FX

Ports 49-64 do not support 1G SFPs with QSA.

N9K-C9508-FM-E

The Cisco N9K-C9508-FM-E2 and N9K-C9508-FM-E fabric modules in the mixed mode configuration are not supported on the same spine switch.

N9K-C9508-FM-E2

The Cisco N9K-C9508-FM-E2 and N9K-C9508-FM-E fabric modules in the mixed mode configuration are not supported on the same spine switch.

The locator LED enable/disable feature is supported in the GUI and not supported in the Cisco ACI NX-OS switch CLI.

N9K-C9508-FM-E2

This fabric module must be physically removed before downgrading to releases earlier than Cisco APIC 3.0(1).

N9K-X9736C-FX

The locator LED enable/disable feature is supported in the GUI and not supported in the Cisco ACI NX-OS Switch CLI.

N9K-X9736C-FX

Ports 29 to 36 do not support 1G SFPs with QSA.

Miscellaneous Compatibility Information

This release supports the following products:

Product

Supported Release

Cisco NX-OS

16.0(1)

Cisco UCS Manager

2.2(1c) or later is required for the Cisco UCS Fabric Interconnect and other components, including the BIOS, CIMC, and the adapter.

CIMC HUU ISO

Note: Install only the CIMC versions mentioned here in this table. Though other firmware versions may be supported on standard UCS C220/C225 servers, they are not supported on APIC and could lead to issues, including failure to boot.

●  4.3.4.252002 (recommended) CIMC HUU ISO for UCS C225 M6 (APIC-L4/M4)

●  4.3.2.250016 (recommended) CIMC HUU ISO for UCS C220/C240 M5 (APIC-L3/M3)

●  4.3.6.250053 CIMC HUU ISO for UCS C225 M6 (APIC-L4/M4) (See the related CSCwo74485 software advisory notice before upgrading)

●  4.3.2.240009 CIMC HUU ISO for UCS C220/C240 M5 (APIC-L3/M3) and UCS C225 M6 (APIC-L4/M4)

●  4.3.2.230207 CIMC HUU ISO for UCS C220/C240 M5 (APIC-L3/M3) and UCS C225 M6 (APIC-L4/M4)

●  4.3.2.250016 CIMC HUU ISO for UCS C220/C240 M5 (APIC-L3/M3).

●  4.2(3e) CIMC HUU ISO for UCS C220/C240 M5 (APIC-L3/M3) and UCS C225 M6 (APIC-L4/M4)

●  4.2(3b) CIMC HUU ISO for UCS C225 M6 (APIC-L4/M4)

●  4.2(3b) CIMC HUU ISO for UCS C220/C240 M5 (APIC-L3/M3)

●  4.2(2a) CIMC HUU ISO for UCS C220/C240 M5 (APIC-L3/M3)

●  4.1(3m) CIMC HUU ISO for UCS C220/C240 M5 (APIC-L3/M3)

●  4.1(3f) CIMC HUU ISO for UCS C220/C240 M5 (APIC-L3/M3)

●  4.1(3d) CIMC HUU ISO for UCS C220/C240 M5 (APIC-L3/M3)

●  4.1(3c) CIMC HUU ISO for UCS C220/C240 M5 (APIC-L3/M3)

●  4.1(2m) CIMC HUU ISO (recommended) for UCS C220/C240 M4 (APIC-L2/M2)

●  4.1(2k) CIMC HUU ISO for UCS C220/C240 M4 (APIC-L2/M2)

●  4.1(2g) CIMC HUU ISO for UCS C220/C240 M4 (APIC-L2/M2)

●  4.1(2b) CIMC HUU ISO for UCS C220/C240 M4 (APIC-L2/M2)

●  4.1(1g) CIMC HUU ISO for UCS C220/C240 M4 (APIC-L2/M2) and M5 (APIC-L3/M3)

●  4.1(1f) CIMC HUU ISO for UCS C220 M4 (APIC-L2/M2) (deferred release)

●  4.1(1d) CIMC HUU ISO for UCS C220 M5 (APIC-L3/M3)

●  4.1(1c) CIMC HUU ISO for UCS C220 M4 (APIC-L2/M2)

●  4.0(4e) CIMC HUU ISO for UCS C220 M5 (APIC-L3/M3)

●  4.0(2g) CIMC HUU ISO for UCS C220/C240 M4 and M5 (APIC-L2/M2 and APIC-L3/M3)

●  4.0(1a) CIMC HUU ISO for UCS C220 M5 (APIC-L3/M3)

●  3.0(4d) CIMC HUU ISO for UCS C220/C240 M3 and M4 (APIC-L2/M2)

●  3.0(3f) CIMC HUU ISO for UCS C220/C240 M4 (APIC-L2/M2)

●  2.0(13i) CIMC HUU ISO

●  2.0(9c) CIMC HUU ISO

●  2.0(3i) CIMC HUU ISO

Network Insights Base, Network Insights Advisor, and Network Insights for Resources

For the release information, documentation, and download links, see the Cisco Network Insights for Data Center page.

For the supported releases, see the Cisco Data Center Networking Applications Compatibility Matrix.

·       This release supports the partner packages specified in the L4-L7 Compatibility List Solution Overview document.

·       A known issue exists with the Safari browser and unsigned certificates, which applies when connecting to the Cisco APIC GUI. For more information, see the Cisco APIC Getting Started Guide, Release 6.0(x).

·       For compatibility with Day-2 Operations apps, see the Cisco Data Center Networking Applications Compatibility Matrix.

·       Cisco Nexus Dashboard Insights creates a user in Cisco APIC called cisco_SN_NI. This user is used when Nexus Dashboard Insights needs to make any changes or query any information from the Cisco APIC. In the Cisco APIC, navigate to the Audit Logs tab of the System > History page. The cisco_SN_NI user is displayed in the User column.

·       Cisco APIC uses an SSL library called CiscoSSL, which is a customized version of the OpenSSL library to support CVE fixes and FIPS compliance. Cisco maintains an extended support contract with OpenSSL. CVE fixes from OpenSSL upstream is regularly incorporated in the older versions of CiscoSSL library as well.

Related Content

See the Cisco Application Policy Infrastructure Controller (APIC) page for the documentation.

The documentation includes installation, upgrade, configuration, programming, and troubleshooting guides, technical references, release notes, and knowledge base (KB) articles, as well as other documentation. KB articles provide information about a specific use case or a specific topic.

By using the "Choose a topic" and "Choose a document type" fields of the APIC documentation website, you can narrow down the displayed documentation list to make it easier to find the desired document.

You can watch videos that demonstrate how to perform specific tasks in the Cisco APIC on the Cisco Cloud Networking YouTube channel.

Temporary licenses with an expiry date are available for evaluation and lab use purposes. They are strictly not allowed to be used in production. Use a permanent or subscription license that has been purchased through Cisco for production purposes. For more information, go to Cisco Data Center Networking Software Subscriptions.

The following table provides links to the release notes, verified scalability documentation, and new documentation:

Document

Description

Cisco Nexus 9000 ACI-Mode Switches Release Notes, Release 16.0(1)

The release notes for Cisco NX-OS for Cisco Nexus 9000 Series ACI-Mode Switches.

Verified Scalability Guide for Cisco APIC, Release 6.0(1) and Cisco Nexus 9000 Series ACI-Mode Switches, Release 16.0(1)

This guide contains the maximum verified scalability limits for Cisco Application Centric Infrastructure (ACI) parameters for Cisco APIC and Cisco Nexus 9000 Series ACI-Mode Switches.

Documentation Feedback

To provide technical feedback on this document, or to report an error or omission, send your comments to apic-docfeedback@cisco.com. We appreciate your feedback.

Legal Information

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