Cisco Nexus 9000 ACI-Mode Switches Release Notes, Release 13.2(9)

May 16, 2022

In the Open Bugs section, added bug CSCwa47686.

May 16, 2022

In the Known Behaviors section, added bug CSCwb77570.

August 10, 2021

In the Open Bugs section, added bug CSCvy30381.

July 6, 2021

In the Supported Hardware section, added the NXA-PAC-500W-PI and NXA-PAC-500W-PE PSUs.

June 24, 2021

In the Open Bugs section, added bug CSCvu07844.

February 11, 2021

In the Resolved Bugs section, added bug CSCvs10395.

January 22, 2021

In the Open Bugs section, added bug CSCvt73069.

January 19, 2021

In the Known Behaviors section, changed the following sentence:

The Cisco Nexus 9508 ACI-mode switch supports warm (stateless) standby where the state is not synched between the active and the standby supervisor modules.

To:

The modular chassis Cisco ACI spine nodes, such as the Cisco Nexus 9508, support warm (stateless) standby where the state is not synched between the active and the standby supervisor modules.

April 24, 2020

13.2(9h): Release 13.2(9h) became available. Added the resolved bugs for this release.

March 13, 2020

13.2(9b): In the Resolved Bugs section, added bug CSCvr98827.

March 12, 2020

In the Changes in Behavior section, clarified that the split brain scenario change is specific to vPCs.

March 11, 2020

13.2(9f): Release 13.2(9f) became available. Added the resolved bugs for this release.

November 22, 2019

13.2(9b): In the Resolved Bugs section, added bugs CSCvr44820 and CSCvr09470.

November 3, 2019

13.2(9b): Release 13.2(9b) became available.

Chassis

N9K-C9504

Cisco Nexus 9504 chassis with 4 I/O slots

Chassis

N9K-C9508

Cisco Nexus 9508 chassis with 8 I/O slots

Chassis component

N9K-C9508-FAN

Fan tray

Chassis component

N9k-PAC-3000W-B

Cisco Nexus 9500 3000W AC power supply, port side intake

Pluggable module (GEM)

N9K-M12PQ

12-port or 8-port

Pluggable module (GEM)

N9K-M6PQ

6-port

Pluggable module (GEM)

N9K-M6PQ-E

6-port, 40 Gigabit Ethernet expansion module

Spine switch

N9K-C9336PQ

Cisco Nexus 9336PQ switch, 36-port 40 Gigabit Ethernet QSFP

Note: The Cisco N9K-C9336PQ switch is supported for multipod.  The N9K-9336PQ switch is not supported for inter-site connectivity with Cisco ACI Multi-Site, but is supported for leaf switch-to-spine switch connectivity within a site.  The N9K-9336PQ switch is not supported when multipod and Cisco ACI Multi-Site are deployed together.

Spine switch

N9K-C9364C

Cisco Nexus 9364C switch is a 2-rack unit (RU), fixed-port switch designed for spine-leaf-APIC deployment in data centers. This switch supports 64 40/100-Gigabit QSFP28 ports and two 1/10-Gigabit SFP+ ports.

The following PSUs are supported for the N9K-C9364C:

■                    NXA-PAC-1200W-PE

■                    NXA-PAC-1200W-PI

■                    N9K-PUV-1200W

■                    NXA-PDC-930W-PE

■                    NXA-PDC-930W-PI

Note: You can deploy multipod or Cisco ACI Multi-Site separately (but not together) on the Cisco N9K-9364C switch starting in the 3.1 release.  You can deploy multipod and Cisco ACI Multi-Site together on the Cisco N9K-9364C switch starting in the 3.2 release.

A 930W-DC PSU (NXA-PDC-930W-PE or NXA-PDC-930W-PI) is supported in redundancy mode if 3.5W QSFP+ modules or passive QSFP cables are used and the system is used in 40C ambient temperature or less; for other optics or a higher ambient temperature, a 930W-DC PSU is supported only with 2 PSUs in non-redundancy mode.

1-Gigabit QSA is not supported on ports 1/49-64.

Spine switch

N9K-C9508-B1

Cisco Nexus 9508 chassis bundle with 1 supervisor module, 3 power supplies, 2 system controllers, 3 fan trays, and 3 fabric modules

Spine switch

N9K-C9508-B2

Cisco Nexus 9508 chassis bundle with 1 supervisor module, 3 power supplies, 2 system controllers, 3 fan trays, and 6 fabric modules

Spine switch

N9K-C9516

Cisco Nexus 9516 switch with 16 line card slots

Spine switch fan

N9K-C9300-FAN3

Port side intake fan

Spine switch fan

N9K-C9300-FAN3-B

Port side exhaust fan

Spine switch module

N9K-C9504-FM

Cisco Nexus 9504 fabric module supporting 40 Gigabit line cards

Spine switch module

N9K-C9504-FM-E

Cisco Nexus 9504 fabric module supporting 100 Gigabit line cards

Spine switch module

N9K-C9508-FM

Cisco Nexus 9508 fabric module supporting 40 Gigabit line cards

Spine switch module

N9K-C9508-FM-E

Cisco Nexus 9508 Fabric module supporting 100 Gigabit line cards

Spine switch module

N9K-C9508-FM-E2

Cisco Nexus 9508 Fabric module supporting 100 Gigabit line cards

Spine switch module

N9K-C9516-FM

Cisco Nexus 9516 Fabric module supporting 100 Gigabit line cards

Spine switch module

N9K-C9516-FM-E2

Cisco Nexus 9516 Fabric module supporting 100 Gigabit line cards

Spine switch module

N9K-X9732C-EX

Cisco Nexus 9500 32-port, 40/100 Gigabit Ethernet QSFP28 aggregation module

Note: The N9K-X9732C-EX line card cannot be used when a fabric module is installed in FM slot 25.

Spine switch module

N9K-X9736C-FX

Cisco Nexus 9500 36-port, 40/100 Gigabit Ethernet QSFP28 aggregation module

Note: 1-Gigabit QSA is not supported on ports 1/29-36. This line card supports the ability to add a fifth Fabric Module to the Cisco N9K-C9504 and N9K-C9508 switches. The fifth Fabric Module can only be inserted into slot 25.

Spine switch module

N9K-X9736PQ

Cisco Nexus 9500 36-port, 40 Gigabit Ethernet QSFP aggregation module

Switch module

N9K-SC-A

Cisco Nexus 9500 Series system controller

Switch module

N9K-SUP-A

Cisco Nexus 9500 Series supervisor module

Switch module

N9K-SUP-A+

Cisco Nexus 9500 Series supervisor module

Switch module

N9K-SUP-B

Cisco Nexus 9500 Series supervisor module

Switch module

N9K-SUP-B+

Cisco Nexus 9500 Series supervisor module

Leaf switch

N9K-C93108TC-EX

Cisco Nexus 9300 platform switch with 48 1/10GBASE-T (copper) front panel ports and 6 40/100-Gigabit QSFP28 spine facing ports.

Leaf switch

N9K-C93108TC-FX

Cisco Nexus 9300 platform switch with 48 1/10GBASE-T (copper) front panel ports and 6 fixed 40/100-Gigabit Ethernet QSFP28 spine-facing ports.

Note: Incoming FCOE packets are redirected by the supervisor module. The data plane-forwarded packets are dropped and are counted as forward drops instead of as supervisor module drops.

Leaf switch

N9K-C93120TX

Cisco Nexus 9300 platform switch with 96 1/10GBASE-T (copper) front panel ports and 6-port 40-Gigabit Ethernet QSFP spine-facing ports.

Leaf switch

N9K-C93128TX

Cisco Nexus 9300 platform switch with 96 1/10GBASE-T (copper) front panel ports and 6 or 8 40-Gigabit Ethernet QSFP spine-facing ports.

Leaf switch

N9K-C93180LC-EX

Cisco Nexus 9300 platform switch with 24 40-Gigabit front panel ports and 6 40/100-Gigabit QSFP28 spine-facing ports

The switch can be used either 24 40G ports or 12 100G ports. If 100G is connected the Port1, Port 2 will be HW disabled.

Note: This switch has the following limitations:

■        The top and bottom ports must use the same speed. If there is a speed mismatch, the top port takes precedence and bottom port will be error disabled. Both ports both must be used in either the 40 Gbps or 10 Gbps mode.

■        Ports 26 and 28 are hardware disabled.

■        This release supports 40 and 100 Gbps for the front panel ports. The uplink ports can be used at the 100 Gbps speed.

■        Port profiles and breakout ports are not supported on the same port.

Leaf switch

N9K-C93180YC-EX

Cisco Nexus 9300 platform switch with 48 1/10/25-Gigabit front panel ports and 6-port 40/100 Gigabit QSFP28 spine-facing ports

Leaf switch

N9K-C93180YC-FX

Cisco Nexus 9300 platform switch with 48 1/10/25-Gigabit Ethernet SFP28 front panel ports and 6 fixed 40/100-Gigabit Ethernet QSFP28 spine-facing ports. The SFP28 ports support 1-, 10-, and 25-Gigabit Ethernet connections and 8-, 16-, and 32-Gigabit Fibre Channel connections.

Note: Incoming FCOE packets are redirected by the supervisor module. The data plane-forwarded packets are dropped and are counted as forward drops instead of as supervisor module drops.

Leaf switch

N9K-C9332PQ

Cisco Nexus 9332PQ Top-of-rack (ToR) Layer 3 switch with 26 APIC-facing ports and 6 fixed-Gigabit spine facing ports.

Leaf switch

N9K-C9336C-FX2

Cisco Nexus C9336C-FX2 Top-of-rack (ToR) switch with 36 fixed 40/100-Gigabit Ethernet QSFP28 spine-facing ports.

Note: 1-Gigabit QSA is not supported on ports 1/1-6 and 1/33-36. The port profile feature supports downlink conversion of ports 31 through 34. Ports 35 and 36 can only be used as uplinks.

Leaf switch

N9K-C9348GC-FXP

The Cisco Nexus 9348GC-FXP switch (N9K-C9348GC-FXP) is a 1-RU fixed-port, L2/L3 switch, designed for ACI deployments. This switch has 48 100/1000-Megabit 1GBASE-T downlink ports, 4 10-/25-Gigabit SFP28 downlink ports, and 2 40-/100-Gigabit QSFP28 uplink ports.

This switch supports the following PSUs:

■        NXA-PAC-350W-PI

■        NXA-PAC-350W-PE

■        NXA-PAC-1100W-PI

■        NXA-PAC-1100W-PE

Note: Incoming FCOE packets are redirected by the supervisor module. The data plane-forwarded packets are dropped and are counted as forward drops instead of as supervisor module drops.

When a Cisco N9K-C9348GC-FXP switch has only one PSU inserted and connected, the PSU status for the empty PSU slot will be displayed as "shut" instead of "absent" due to a hardware limitation.

The PSU SPROM is not readable when the PSU is not connected. The model displays as "UNKNOWN" and status of the module displays as "shutdown."

Leaf switch

N9K-C9372PX

Cisco Nexus 9372PX Top-of-rack (ToR) Layer 3 switch with 48 Port 1/10-Gigabit APIC-facing ports Ethernet SFP+ front panel ports and 6 40-Gbps Ethernet QSFP+ spine-facing ports

Note: Only the downlink ports 1-16 and 33-48 are capable of supporting SFP1-10G-ZR SFP+.

Leaf switch

N9K-C9372PX-E

Cisco Nexus 9372PX-E Top-of-rack (ToR) Layer 3 switch with 48 Port 1/10-Gigabit APIC-facing ports Ethernet SFP+ front panel ports and 6 40-Gbps Ethernet QSFP+ spine-facing ports

Note: Only the downlink ports 1-16 and 33-48 are capable of supporting SFP1-10G-ZR SFP+.

Leaf switch

N9K-C9372TX

Cisco Nexus 9372TX Top-of-rack (ToR) Layer 3 switch with 48 1/10GBASE-T (copper) front panel ports and 6 40-Gbps Ethernet QSFP spine-facing ports

Leaf switch

N9K-C9372TX-E

Cisco Nexus 9372TX-E Top-of-rack (ToR) Layer 3 switch with 48 10GBASE-T (copper) front panel ports and 6 40-Gbps Ethernet QSFP+ spine-facing ports

Leaf switch

N9K-C9396PX

Cisco Nexus 9300 platform switch with 48 1/10-Gigabit SFP+ front panel ports and 6 or 12 40-Gigabit Ethernet QSFP spine-facing ports  

Leaf switch

N9K-C9396TX

Cisco Nexus 9300 platform switch with 48 1/10GBASE-T (copper) front panel ports and 6 or 12 40-Gigabit Ethernet QSFP spine-facing ports

Leaf switch fan

NXA-FAN-30CFM-B

Red port side intake fan

Leaf switch fan

NXA-FAN-30CFM-F

Blue port side exhaust fan

Leaf switch fan

NXA-FAN-65CFM-PE

Blue port side exhaust fan

Leaf switch fan

NXA-SFAN-65CFM-PE

Blue port side exhaust fan

Leaf switch fan

NXA-FAN-65CFM-PI

Burgundy port side intake fan

Leaf switch fan

NXA-SFAN-65CFM-PI

Burgundy port side intake fan

Leaf switch power supply unit

N9K-PAC-1200W

1200W AC Power supply, port side intake pluggable

Note: This power supply is supported only by the Cisco Nexus 93120TX, 93128TX, and 9336PQ ACI-mode switches

Leaf switch power supply unit

N9K-PAC-1200W-B

1200W AC Power supply, port side exhaust pluggable

Note: This power supply is supported only by the Cisco Nexus 93120TX, 93128TX, and 9336PQ ACI-mode switches

Leaf switch power supply unit

NXA-PAC-1100W-PE2

1100W AC power supply, port side exhaust pluggable

Leaf switch power supply unit

NXA-PAC-1100W-PI2

1100W AC power supply, port side intake pluggable

Leaf switch power supply unit

N9K-PAC-650W

650W AC Power supply, port side intake pluggable

Leaf switch power supply unit

N9K-PAC-650W-B

650W AC Power supply, port side exhaust pluggable

Leaf switch power supply unit

NXA-PDC-1100W-PE

1100W AC power supply, port side exhaust pluggable

Leaf switch power supply unit

NXA-PDC-1100W-PI

1100W AC power supply, port side intake pluggable

Leaf switch power supply unit

NXA-PHV-1100W-PE

1100W HVAC/HVDC power supply, port-side exhaust

Leaf switch power supply unit

NXA-PHV-1100W-PI

1100W HVAC/HVDC power supply, port-side intake

Leaf switch power supply unit

N9K-PUV-1200W

1200W HVAC/HVDC dual-direction airflow power supply

Note: This power supply is supported only by the Cisco Nexus 93120TX, 93128TX, and 9336PQ ACI-mode switches

Leaf switch power supply unit

N9K-PUV-3000W-B

3000W AC Power supply, port side exhaust pluggable

Leaf switch power supply unit

NXA-PAC-1200W-PE

1200W AC Power supply, port side exhaust pluggable, with higher fan speeds for NEBS compliance

Note: This power supply is supported only by the Cisco Nexus 93120TX, 93128TX, and 9336PQ ACI-mode switches.

Leaf switch power supply unit

NXA-PAC-1200W-PI

1200W AC Power supply, port side intake pluggable, with higher fan speeds for NEBS compliance

Note: This power supply is supported only by the Cisco Nexus 93120TX, 93128TX, and 9336PQ ACI-mode switches.

Leaf switch power supply unit

NXA-PAC-500W-PE

500W AC Power supply, port side exhaust pluggable

Leaf switch power supply unit

NXA-PAC-500W-PI

500W AC Power supply, port side intake pluggable

Leaf switch power supply unit

NXA-PDC-440W-PI

440W DC power supply, port side intake pluggable, with higher fan speeds for NEBS compliance

Note: This power supply is supported only by the Cisco Nexus 9348GC-FXP ACI-mode switch.

Leaf switch power supply unit

UCSC-PSU-930WDC V01

Port side exhaust DC power supply compatible with all ToR leaf switches

Leaf switch power supply unit

UCS-PSU-6332-DC

930W DC power supply, reversed airflow (port side exhaust)

N9K-C93108TC-FX

Switch

Yes

No

N9K-C93180YC-FX

Switch

Yes

No

N9K-C93216TC-FX2

Switch

Yes

No

N9K-C93360YC-FX2

Switch

Yes

No

N9K-C9336C-FX2

Switch

Yes

No

N9K-C9348GC-FXP

Switch

Yes, only with 10G+

No

N9K-C9364C

Switch

Yes

Yes, only on the last 16 ports

N9K-X9736C-FX

Line Card

Yes

Yes, only on the last 8 ports

CSCvu26947

If a rogue file grows too large, it can cause out of memory condition on a spine switch or leaf switch line card or fabric module without proactively alerting the user to the memory leak, and the line card or fabric module will reload.

13.2(9h) and later

CSCvu48811

When a Cisco ACI switch is configured in a "maintenance mode" (mmode), a banner is displayed to the user indicating the operating mode of the switch.

13.2(9h) and later

CSCvu84587

VTEP endpoints are learned and set to bounce on some leaf switches. A single VTEP IP address could be seen as local on one vPC pair, but as an IP XR with bounce on another leaf switch pair.

13.2(9h) and later

CSCvv39277

After an upgrade, for one of the VRF tables, the BGP route map is missing on the spine switch, which results in bridge domain prefixes not being advertised.

13.2(9h) and later

CSCwa12763

External route import for a VRF instance fails on a leaf switch after removing a shared services contract between two EPGs.

13.2(9h) and later

CSCvv27817

DHCP unicast renewal ACKs are NOT forwarded across the fabric to clients. This traffic is sourced from port 67 destined to port 68. The regular Discover, Offer, Request, Acknowledge (DORA) process and unicast ACKs function correctly. This traffic is sourced from port 67 destined to port 67.
The DHCP renewals are incorrectly being punted to the CPU as ISTACK_SUP_CODE_DHCP_SNOOP on the ingress leaf switch.

13.2(9f) and later

CSCvs76848

A switch SSD fails in less than two years and needs replacement. The /mnt/pss/ssd_log_amp.log file shows daily P/E cycles increasing by 10 or more each day, and fault "F3525: High SSD usage" is observed. Check the switch activity and contact Cisco Technical Support if the "High SSD usage" fault is raised on the switch.

13.2(9b) through 13.2(9f)

CSCvt82388

A switch SSD fails in less than two years and needs replacement. The /mnt/pss/ssd_log_amp.log file shows daily P/E cycles increasing by 10 or more each day, and fault "F3525: High SSD usage" is observed. ARP/ICMPv6 adjacency updates can also contribute to many SSD writes.

13.2(9b) through 13.2(9f)

CSCvg85886

When an ARP request is generated from one endpoint to another endpoint in an isolated EPG, an ARP glean request is generated for the first endpoint.

13.2(9b) and later

CSCvg95192

Endpoint information is missing in the spine switches.

13.2(9b) and later

CSCvh11299

In COOP, the MAC IP address route has the wrong VNID, and endpoints are missing from the IP address DB of COOP.

13.2(9b) and later

CSCvh18100

If Cisco ACI Virtual Edge or AVS is operating in VxLAN non-switching mode behind a FEX, the traffic across the intra-EPG endpoints will fail when the bridge domain has ARP flooding enabled.

13.2(9b) and later

CSCvj03533

When IPv6 packets are received, mab is triggered. But, only the MAC address endpoint is learned, not the IP address endpoint.

13.2(9b) and later

CSCvj23046

In Cisco ACI Multi-Site plus multi-pod topologies, there could be multicast traffic loss for about 30 seconds on the remote-site. If only one LC has fabric links, there are other LCs with no fabric links and the LC with fabric links is reloaded.

13.2(9b) and later

CSCvj29908

Traffic gets dropped when a new TX SA is programmed after an old Rx SA is deleted on the peer and there are breakout ports in the link down state.

13.2(9b) and later

CSCvk48856

The port LED shows green when a few breakout ports lanes are down.

13.2(9b) and later

CSCvk73228

This is an enhancement to decode the binary logs offline directly from the techsupport.

13.2(9b) and later

CSCvk74561

Link down detection on the copper transceiver port takes around 1 second of time when its peer switch reloads. This issue is only with a copper transceiver.

13.2(9b) and later

CSCvm75395

A route map is deployed even when the route profile is configured incorrectly. When upgrading to a release that includes the fixed for this defect, the incorrectly deployed route map is removed from the leaf switch, which may affect traffic that was using the route map.

13.2(9b) and later

CSCvn28108

A switch gets stuck in a bootloop with the following error raised on the console:

[ 1041.090380] obfl_klm writing reset reason 58, LC insertion sequence failure => [Failures < MAX] : powercycle

[ 1042.207780] write_mtd_flash_panic: successfully wrote 88 bytes at address 0xd68 to RR Iter: 0.

13.2(9b) and later

CSCvo35006

Multiple N9K-X9736C-FX 40G line cards get stuck in the 'Inserted' state during a reload or reboot.

13.2(9b) and later

CSCvo39715

When downgrading a Cisco ACI fabric, the OSPF neighbors go down after downgrading the Cisco APICs from a 3.2 or later release to a pre-3.2 release. After the upgrade, the switches are still running a 13.2 or later release.

13.2(9b) and later

CSCvo49717

After downgrading to the 13.2(9) release from a later release, an N9K-C9508-FM-E2 fabric module gets stuck in the 'Inserted' state.

13.2(9b) and later

CSCvp09949

Copy service traffic will fail to reach the TEP where the copy devices are connected. Traffic will not be seen on the spine switches.

13.2(9b) and later

CSCvp47696

A port-client crash is seen on FX2 leaf switches when a large number of breakouts are configured.

13.2(9b) and later

CSCvp50075

A leaf switch experiences an unexpected reload due to a HAP reset.

13.2(9b) and later

CSCvp72312

A contract that is provided by an EPG using a bridge domain with subnet X and that is consumed by an L3Out EPG causes a leak of subnet X from VRF B to VRF A. The existing non-pervasive static route in VRF A is replaced by a pervasive route in pointing to spine switch V4 proxy. After the contract leaking subnet A is removed, the pervasive static route persists.

13.2(9b) and later

CSCvp77034

The hardware abstraction layer (HAL) generates a core file when all of the non-fabric ports are converted into breakout ports.

13.2(9b) and later

CSCvq20215

Some ECMP paths may be flap between "multipath" and "non-multipath."

For example, if the configured EBGP MAX ECMP number is 10 and there are 16 BGP ECMP paths for a prefix in the BGP routing table, then 5 paths change between multipath and non-multipath whenever the BGP bestpath calculation is run.

13.2(9b) and later

CSCvq64803

A leaf switch crashes with the "Unknown" reset reason when the breakout ports configuration is re-applied.

The reset reason for this switch is as follows:

        Image Version : 13.2(3o)

        Reset Reason (LCM): Unknown (0) at time Fri Jul 12 14:21:14 2019

        Reset Reason (SW): Reset triggered due to HA policy of Reset (16) at time Fri Jul 12 14:17:40 2019

        Service (Additional Info): Reset triggered due to HA policy of Reset

13.2(9b) and later

CSCvq98750

In Cisco ACI when using MAC pinning with a vPC, prior to reloading when you run the 'show vpc brief' command on the CLI, the command shows that the vPC is passing consistency checks. However, after reloading the leaf switch, the vPC then properly displays the consistency check as 'Not Applicable'.

13.2(9b) and later

CSCvr09108

An interface does not come up when a new link is connected. However, from the DOM data, the signals are present.

13.2(9b) and later

CSCvr46867

A Cisco ACI modular spine switch (N9504 chassis) with redundant supervisor modules (N9K-SUP-A) had an unexpected series of switchovers during a 6 minute period.

13.2(9b) and later

CSCvr47042

After removing a transceiver or cable from the interface, the port LED remains green. A port is physically down, but the "show interface" command says that the port is still up.

13.2(9b) and later

CSCvr49904

Traffic with a UDP destination port of 8472 is dropped on ingress by the ACI fabric.

13.2(9b) and later

CSCvr79911

An LLDP/CDP MAC address entry gets stuck in the blade switch table on a leaf switch in a vPC. The entry can get stuck if the MAC address flaps and hits the move detection interval, which stops all learning for the address.  Use the following command to verify if a switch has a stale MAC address entry:

module-1# show system internal epmc bladeswitch_mac all

13.2(9b) and later

CSCvr83337

A Cisco ACI leaf switch unexpectedly reloads and generates a core file.

13.2(9b) and later

CSCvr88009

The Netflow (nfm) process crashes during configuration changes.

13.2(9b) and later

CSCvr91674

Whenever a switch hits a burst of PCIe, DRAM, or MCE errors, sometimes the device_test process crashes, which can cause the switch to reload.

13.2(9b) and later

CSCvr98827

Some of the control plane packets are incorrectly classified as the user class and are reported as dropped in single chip spine switches. The statistics are incorrect because the packets are not actually dropped.

13.2(9b) and later

CSCvs02955

When running "show system internal epm endpoint all summary" on an FX leaf, the command output is cut short.

13.2(9b) and later

CSCvs08304

The spine outerdstip, which indicates that the egress TEP is connecting to the Tetration network, is not updated when an egress L3Out in the mgmt:inb VRF fails over to a redundant L3Out on another leaf switch.

13.2(9b) and later

CSCvs18150

After a certain set of steps, it is observed that the deny-external-tag route-map used for transit routing loop prevention gets set back to the default tag 4294967295. Since routes arriving in Cisco ACI with this tag are denied from being installed in the routing table, if the VRF table that has the route-tag policy is providing transit for another VRF table in Cisco ACI (for instance and inside and outside vrf with a fw connecting them) and the non-transit VRF table has the default route-tag policy, routes from the non-transit VRF table would not be installed in the transit VRF table.

This bug is also particularly impactful in scenarios where transit routing is being used and OSPF or EIGRP is used on a vPC border leaf switch pair. vPC border leaf switches peer with each other, so if member A gets a transit route from BGP, redistributes into OSPF, and then advertises to member B (since they are peers)...without a loop prevention mechanism, member B would install the route through OSPF since it has a better admin distance and would then advertise back into BGP. This VRF tag is set on redistribution of BGP > OSPF and then as a table map in OSPF that blocks routes with the tag from getting installed in the routing table. When hitting this bug, the route-map used for redistributing into OSPF still sets the tag to the correct value. However, the table map no longer matches the correct tag. Rather, it matches the default tag. As a result, member A (could be B) would install the route through OSPF pointing to B. It would then redistribute it back into BGP with the med set to 1. The rest of the fabric (including member B) would install the BGP route pointing to member A since its med is better than the original route's med.

13.2(9b) and later

CSCvs34065

The "get_bkout_cfg failed" error displays when the following vsh_lc cli command is executed:

vsh_lc -c "show system internal port-client event-history all"

13.2(9b) and later

CSCvs40299

The policy_mgr process on an ACI leaf switch has a memory leak and results in an unexpected reload.

The problem can happen over a long period of time, such as a year. Depending on when individual switches were last rebooted, multiple devices could experience the reload at around the same time.

13.2(9b) and later

CSCvs41818

Port 1/2 on N9k-C9364C flaps continuously and does not come up.

13.2(9b) and later

CSCvs45414

A N9K-X9736PQ linecard in an ACI mode Nexus 9500 spine switch unexpectedly reloads. The following output is seen in the command "show system reset-reason module 1":

    `show system reset-reason module 1`

    *************** module reset reason (1) *************

    0) At 2019-12-01T00:00:00.00

        Reason: line-card-not-responding

        Service:Line card not responding => [Failures < MAX] : powercycle

        Version:

13.2(9b) and later

CSCvs49377

After a virtual machine is vMotioned, traffic begins to drop the source from that endpoint. When running "show logging ip access-list internal packet-log deny" on the leaf switch, you can see policy drops for the endpoint.

13.2(9b) and later

CSCvs56978

Connectivity between a server EPG and external L3Out EPG can be broken for some subnets that are configured with an external subnet for an external EPG.

13.2(9b) and later

CSCvs89617

Some ARP packets get dropped across the Cisco ACI fabric.

13.2(9b) and later

CSCvt00231

Traffic destined to a switch is policy dropped.  The contracts configured on the switch look correct, but the ELAM drop reason shows a clear SECURITY_GROUP_DENY. If you dump the FPC and FPB pt.index results of the ELAM, the values are different. Specifically, the FPC index is wrong when you check the Stats Idx under the specific ACLQOS rule. FPC should be the summary of the final result. In this case, there are two hits, but there is one stable entry in TCAM and one that is not stable.

13.2(9b) and later

CSCvt08181

All routes to a particular spine switch are removed from uRIB on all leaf switches in the fabric.

13.2(9b) and later

CSCvt25383

The pervasive static route is missing on the spine node.

13.2(9b) and later

CSCvt35002

A link intermittently flaps on leaf switch fabric ports that are connected to a spine switch.

13.2(9b) and later

CSCvt39689

Glean ARP (0xfff2, 239.255.255.240) flood is stopped on the transit leaf switch and is not delivered toward all the leaf switches in the fabric. Thus, silent host discovery does not work.

13.2(9b) and later

CSCvt52620

There is a stale pervasive route after a DHCP relay label is deleted.

13.2(9b) and later

CSCvt57119

A Cisco ACI leaf switch sends traffic that is untagged for a particular VLAN even though it is configured as trunk (tagged).

13.2(9b) and later

CSCvt73069

A Cisco ACI fabric is not fully fit after a Cisco APIC firmware upgrade.

13.2(9b) and later

CSCvt94039

A leaf switch crashes and reloads due to "nfm hap reset".

13.2(9b) and later

CSCvu01639

There are faults for failed contract rules and prefixes on switches prior to the -EX switches. Furthermore, traffic that is destined to an L3Out gets dropped because the compute leaf switches do not have the external prefix programmed in ns shim GST-TCAM. You might also see that leaf switches prior to the -EX switches do not have all contracts programmed correctly in the hardware.

13.2(9b) and later

CSCvu07844

When a Cisco N9K-C93180LC-EX, N9K-93180YC-EX, or N9K-C93108TC-EX leaf switch receives control, data, or BUM traffic from the front panel ports with the storm policer configured for BUM traffic, the storm policer will not get enforced. As such, the switch will let all such traffic through the system.

13.2(9b) and later

CSCvu08065

If inter-VRF DHCP relay is used, it may be observed that DHCP breaks after performing any activity that causes the client VRF to get removed and re-deployed on the client leaf nodes.

13.2(9b) and later

CSCvu15712

If a spine switch's PTEP is configured as the multipod L3Out router ID and the router ID is later changed, the spine switch's PTEP loopback gets deleted and the MP BGP session goes down.

13.2(9b) and later

CSCvu15751

The following event can be seen on the spine node:

[E4204936][transition][warning][sys] %URIB-4-SYSLOG_SL_MSG_WARNING: URIB-5-RPATH_DELETE: message repeated 1 times in last 220162 sec

13.2(9b) and later

CSCvu22736

There is an event in which the syslog message is masked and does not provide details about the issue. The main syslog message is not seen, but rate-throttled syslog messages are seen.

13.2(9b) and later

CSCvu40050

The spine node KIC database is missing the v4 default route from RIB. This causes in-band return traffic to drop on the way back to the border leaf nodes.

13.2(9b) and later

CSCvu61024

Zoning-rules are not programmed in the hardware after reloading a switch.

13.2(9b) and later

CSCvu72416

Triggered by a physical layer issue, such as fiber or a bad transceiver, a link flap may happen every now and then. However, it is uncommon to have continuous flaps when the node is left unattended over an extended period, such as having 688,000 flaps over a year. Each time after the fabric link flaps, one dbgRemotePort managed object is added to the policyElement database. After a long time flapping like this, unexpected memory allocation and access can be triggered for the Nexus OS process, such as policy_mgr or ethpm.

This defect is to enhance the object-store to reduce the impact for such scenarios.

13.2(9b) and later

CSCvv33100

The IPS port is not down when an RX cable is removed on a Cisco ACI leaf switch 1G port.

An ACI switch with 1G fiber would signal a peer IOS device, such as a Catalyst 6000 series switch, with flow control auto/desired to turn on the flow control.

13.2(9b) and later

CSCvv75224

IPv6 BGP route with recursive next-hop is programmed in the software, but not programmed in the hardware. Traffic destined to this route is blackholed.

13.2(9b) and later

CSCvv78885

A stale route map entry is causes unexpected route leaking.

13.2(9b) and later

CSCvv95800

A spine switch reloads unexpectedly due to the service on the linecard having a hap-reset.

13.2(9b) and later

CSCvw07282

On a modular spine switch, an unconnected port's switching state is disabled, which means it is out of service. The issue is that after reloading a line card, all of the ports on that line card change to switching state enabled, even if the port is not connected to anything. This issue is mostly cosmetic; there is no real impact if an unconnected port has switching state enabled.

13.2(9b) and later

CSCvy30381

After replacing the hardware for a leaf switch, the leaf switch front-panel ports are set to the admin-down state for 45 minutes.

13.2(9b) and later

CSCwa47686

For a Cisco ACI fabric with more than 128 leaf switches in a given pod, such as 210 leaf switches in a single pod deployment, after enabling PTP globally, only 128 leaf switches are able to enable PTP. The remaining 82 leaf switches fail to enable PTP due to the error F2728 latency-enable-failed.

13.2(9b) and later

CSCwb08081

A route profile that matches on community list and sets the local pref and community is not working post upgrade to 5.2.x release.

route-map imp-l3out-L3OUT_WAN-peer-2359297, permit, sequence 4201

  Match clauses:

    community  (community-list filter): peer16389-2359297-exc-ext-in-L3OUT_WAN_COMMUNITY-rgcom

  Set clauses:

    local-preference 200

    community xxxxx:101 xxxxx:500 xxxxx:601 xxxxy:4 additive

The match clause works as expected, but the set clause is ignored.

13.2(9b) and later

CSCwd29346

An ACI switch's console may continuously output messages similar to:

svc_ifc_eventmg (*****) Ran 7911 msecs in last 7924 msecs

13.2(9b) and later

CSCvs10395

Leaf switch downlinks all go down at one time due to FabricTrack.

13.2(9b)

CSCvs76848

A switch SSD fails in less than two years and needs replacement. The /mnt/pss/ssd_log_amp.log file shows daily P/E cycles increasing by 10 or more each day, and fault "F3525: High SSD usage" is observed. Check the switch activity and contact Cisco Technical Support if the "High SSD usage" fault is raised on the switch.

13.2(9h)

CSCvt82388

A switch SSD fails in less than two years and needs replacement. The /mnt/pss/ssd_log_amp.log file shows daily P/E cycles increasing by 10 or more each day, and fault "F3525: High SSD usage" is observed. ARP/ICMPv6 adjacency updates can also contribute to many SSD writes.

13.2(9h)

CSCvs10395

Leaf switch downlinks all go down at one time due to FabricTrack.

13.2(9f)

CSCvs29384

Fault F3525 (high SSD usage) is observed.

13.2(9f)

CSCvo45926

The BGP session for a given peer continuously flaps.

13.2(9b)

CSCvo61161

There might be ingress CRC errors on the leaf switch interfaces that connect to the spine switches.

13.2(9b)

CSCvp40683

A port client core gets generated in a Cisco N9K-C93180LC-EX TOR switch.

13.2(9b)

CSCvp45695

The AVS tunnel is down due to a duplicated configuration.

13.2(9b)

CSCvp55203

When the speed is set to 40G in QSFP-40/100 SRBD, the speed is not accepted and there is a fault for speed mismatch.

13.2(9b)

CSCvp65188

There are excessive GARP messages when a Common Pervasive Gateway vMAC address is configured. With a Common Pervasive Gateway vMAC address, GARPs are expected to be sent out. A scale set up seems to be a problem as the packets seem to get multiplied.

13.2(9b)

CSCvp94661

There is an EPM crash on a leaf switch that receives the Endpoint Announce packet with a malformed length field.

13.2(9b)

CSCvq13256

There is an unexpected reload on a N9K-X9736PQ line card due to the "diagnostic failure => [Failures < MAX] : powercycle 63" error.

13.2(9b)

CSCvq24416

A secondary VPC peer disables all VPC interfaces.

13.2(9b)

CSCvq24894

A leaf switch becomes inactive and communication over Infra/overlay-1 fails. Pinging from the Cisco APICs to the leaf switch's TEP address fails, but OOB management might remain reachable.

13.2(9b)

CSCvq30486

There is a system reset due to the sysmgr process failing to re-register with the heartbeat KLM.

13.2(9b)

CSCvq38040

There is a rare timing issue seen during F5 failover, which triggers a simultaneous local learn on one vPC TOR and a sync update from the peer. This sequence could end up causing an inconsistency in EPMC on one vPC peer where the endpoint ends up pointing to a bounce entry even though it was learned on the front panel.

13.2(9b)

CSCvq39970

Multiple subnets under same the bridge domain cannot be configured as an IGMP querier.

13.2(9b)

CSCvq40849

Some 100 Gbps uplink ports between a spine switch and leaf switch do not come up.

13.2(9b)

CSCvq41662

When an N9K-C93108TC-FX leaf switch is connected to a specific NIC (Intel NIC) with 10G and the cable is removed, the linkdown for the 10G access port is delayed at ~700 ms, compared with the link down on the server. This can cause the failover of the vPC to take more than 1 second (> 1 second traffic disruption).

13.2(9b)

CSCvq42673

1) Deploy the breakout configuration.

2) Deploy a port channel or vPC configuration on these broken-out ports.

3) Remove the breakout configuration. The port channel or vPC configuration is still present in the APIC.

4) Deploy the breakout configuration. This action causes a port channel bringup failure, or causes the port channel manager or eth_port_manager to crash on the switch.

This issue occurs when the vPC or port channel configuration is present even before the breakout is applied.

13.2(9b)

CSCvq43058

A spine switch fabric module or line card is reloaded unexpectedly due to a kernel panic. The stack trace includes the following statement:

Kernel panic - not syncing: Out of memory: system-wide panic_on_oom is enabled

13.2(9b)

CSCvq43477

In the IPv6 options, for the source-link layer address field, IPv6 traffic is blackholed because the leaf switch sets the incorrect MAC address in the router advertisement's (RA's) source link-layer address. This happens only with RAs that are sent as a reply to the router solicitation from the host. Unsolicited RAs from the leaf switch have the correct MAC address of the leaf switch itself.

The border leaf switch sends out unsolicited RA messages correctly with its link MAC address (0022.bdf8.19ff) in the source link-layer address field.

13.2(9b)

CSCvq46806

When PIM is enabled, IGMP SVI should be the IGMP querier. However, IGMP snooping pushes the switch querier, which causes the IGMP query to be generated by IGMP snooping instead of the IGMP process.

13.2(9b)

CSCvq51338

Stale tunnel interfaces faults are present in Cisco ACI. The tunnel interfaces are "down" and in the "dest-unreach" status. When specifying the tunnelIf object with the moquery command (moquery -c tunnelIf) on the leaf switches, the "type" is "virtual" in the output.

13.2(9b)

CSCvq58827

There is a memory leak in the policy manager process.

13.2(9b)

CSCvq64328

Unicast DHCP refresh packets are not able to reach the APIC.  If you are looking at the AVE SYSLOG (/var/log/messages), you may see continuous logs similar to the following examples:

Jul 22 08:30:34 cisco-ave_1 dhclient[14502]: DHCPREQUEST on kni0 to 100.65.0.4 port 67 (xid=0x7bb6ab84)

Jul 22 08:30:46 cisco-ave_1 dhclient[16617]: DHCPREQUEST on kni2 to 100.65.0.5 port 67 (xid=0x76220e2d)

Jul 22 08:30:55 cisco-ave_1 dhclient[14502]: DHCPREQUEST on kni0 to 100.65.0.4 port 67 (xid=0x7bb6ab84)

Jul 22 08:31:02 cisco-ave_1 dhclient[16617]: DHCPREQUEST on kni2 to 100.65.0.5 port 67 (xid=0x76220e2d)

Jul 22 08:31:05 cisco-ave_1 dhclient[14502]: DHCPREQUEST on kni0 to 100.65.0.4 port 67 (xid=0x7bb6ab84)

Jul 22 08:31:20 cisco-ave_1 dhclient[14502]: DHCPREQUEST on kni0 to 100.65.0.4 port 67 (xid=0x7bb6ab84)

Jul 22 08:31:22 cisco-ave_1 dhclient[16617]: DHCPREQUEST on kni2 to 100.65.0.5 port 67 (xid=0x76220e2d)

Jul 22 08:31:34 cisco-ave_1 dhclient[16617]: DHCPREQUEST on kni2 to 100.65.0.5 port 67 (xid=0x76220e2d)

Jul 22 08:31:41 cisco-ave_1 dhclient[14502]: DHCPREQUEST on kni0 to 100.65.0.4 port 67 (xid=0x7bb6ab84)

13.2(9b)

CSCvq97092

The N2348TQ FEX randomly reboots. A crash in the 'tiburon' and/or 'ethpc' service may be observed in the syslogs immediately prior to the reload event.

13.2(9b)

CSCvr08148

The N9K-C93180YC-EX leaf switch reboots for an unknown reason without any affected services:

Last reset

  Reason: Unknown

  System version: <VERSION>

  Service:

13.2(9b)

CSCvr09470

Multicast receivers in the fabric send frequent joins and leaves to the Cisco ACI leaf switches, which eventually causes all multicast traffic for that specific group to fail.

13.2(9b)

CSCvr26239

The upgrade of an N9K-C93180YC-EX leaf switch fails due to the SRG extraction failing.

13.2(9b)

CSCvr26392

Fault F1259 occurs when attempting to SSH using in-band management.

13.2(9b)

CSCvr44820

When the default route leaf policy is configured, the "400 Bad Request of Inconsistent Criteria" warning in the default route leaf policy might display in the APIC GUI.

13.2(9b)

CSCvr75413

After upgrading a leaf switch, the switch brings up the front panel ports before the policies are programmed. This may cause a connectivity issue if a connected host relies on the link level state to decide whether or not it can forward traffic on a particular NIC or port. The loss duration would be proportional to the scale of configuration policies that must be programmed.

13.2(9b)

CSCvr76058

A leaf switch crashes due to the following reason:

    Reason: reset-triggered-due-to-ha-policy-of-reset

    Service:device_test hap reset

13.2(9b)

CSCuo37016

When configuring the output span on a FEX Hif interface, all the layer 3 switched packets going out of that FEX Hif interface are not spanned. Only layer 2 switched packets going out of that FEX Hif are spanned.

13.2(9b) and later

CSCuo50533

When output span is enabled on a port where the filter is VLAN, multicast traffic in the VLAN that goes out of that port is not spanned.

13.2(9b) and later

CSCup65586

The show interface command shows the tunnel's Rx/Tx counters as 0.

13.2(9b) and later

CSCup82908

The show vpc brief command displays the wire-encap VLAN Ids and the show interface .. trunk command displays the internal/hardware VLAN IDs. Both VLAN IDs are allocated and used differently, so there is no correlation between them.

13.2(9b) and later

CSCup92534

Continuous "threshold exceeded" messages are generated from the fabric.

13.2(9b) and later

CSCuq39829

Switch rescue user ("admin") can log into fabric switches even when TACACS is selected as the default login realm.

13.2(9b) and later

CSCuq46369

An extra 4 bytes is added to the untagged packet with Egress local and remote SPAN.

13.2(9b) and later

CSCuq77095

When the command show ip ospf vrf <vrf_name> is run from bash on the border leaf, the checksum field in the output always shows a zero value.

13.2(9b) and later

CSCuq83910

When an IP address moves from one MAC behind one ToR to another MAC behind another ToR, even though the VM sends a GARP packet, in ARP unicast mode, this GARP packet is not flooded. As a result, any other host with the original MAC to IP binding sending an L2 packet will send to the original ToR where the IP was in the beginning (based on MAC lookup), and the packet will be sent out on the old port (location). Without flooding the GARP packet in the network, all hosts will not update the MAC-to-IP binding.

13.2(9b) and later

CSCuq92447

When modifying the L2Unknown Unicast parameter on a Bridge Domain (BD), interfaces on externally connected devices may bounce. Additionally, the endpoint cache for the BD is flushed and all endpoints will have to be re-learned.

13.2(9b) and later

CSCuq93389

If an endpoint has multiple IPs, the endpoint will not be aged until all IPs go silent. If one of the IP addresses is reassigned to another server/host, the fabric detects it as an IP address move and forwarding will work as expected.

13.2(9b) and later

CSCur01336

The power supply will not be detected after performing a PSU online insertion and removal (OIR).

13.2(9b) and later

CSCur81822

The access-port operational status is always "trunk".

13.2(9b) and later

CSCus18541

An MSTP topology change notification (TCN) on a flood domain (FD) VLAN may not flush endpoints learned as remote where the FD is not deployed.

13.2(9b) and later

CSCus29623

The transceiver type for some Cisco AOC (active optical) cables is displayed as ACU (active copper).

13.2(9b) and later

CSCus43167

Any TCAM that is full, or nearly full, will raise the usage threshold fault. Because the faults for all TCAMs on leaf switches are grouped together, the fault will appear even on those with low usage.

Workaround:  Review the leaf switch scale and reduce the TCAM usage. Contact TAC to isolate further which TCAM is full.

13.2(9b) and later

CSCus54135

The default route is not leaked by BGP when the scope is set to context. The scope should be set to Outside for default route leaking.

13.2(9b) and later

CSCus61748

If the TOR 1RU system is configured with the RED fan (the reverse airflow), the air will flow from front to back. The temperature sensor in the back will be defined as an inlet temperature sensor, and the temperature sensor in the front will be defined as an outlet temperature sensor.

If the TOR 1RU system is configured with the BLUE fan (normal airflow), the air will flow from back to front. The temperature sensor in the front will be defined as an inlet temperature sensor, and the temperature sensor in the back will be defined as outlet temperature sensor.

From the airflow perspective, the inlet sensor reading should always be less than the outlet sensor reading. However, in the TOR 1RU family, the front panel temperature sensor has some inaccurate readings due to the front panel utilization and configuration, which causes the inlet temperature sensor reading to be very close, equal, or even greater than the outlet temperature reading.

13.2(9b) and later

CSCut59020

If Backbone and NSSA areas are on the same leaf, and default route leak is enabled, Type-5 LSAs cannot be redistributed to the Backbone area.

13.2(9b) and later

CSCuu11347

Traffic from the orphan port to the vPC pair is not recorded against the tunnel stats.  Traffic from the vPC pair to the orphan port is recorded against the tunnel stats.

13.2(9b) and later

CSCuu11351

Traffic from the orphan port to the vPC pair is only updated on the destination node, so the traffic count shows as excess.

13.2(9b) and later

CSCuu66310

If a bridge domain "Multi Destination Flood" mode is configured as "Drop", the ISIS PDU from the tenant space will get dropped in the fabric.

13.2(9b) and later

CSCuv57302

Atomic counters on the border leaf do not increment for traffic from an endpoint group going to the Layer 3 out interface.

13.2(9b) and later

CSCuv57315

Atomic counters on the border leaf do not increment for traffic from the Layer 3 out interface to an internal remote endpoint group.

13.2(9b) and later

CSCuv57316

TEP counters from the border leaf to remote leaf nodes do not increment.

13.2(9b) and later

CSCuw09389

For direct server return operations, if the client is behind the Layer 3 out, the server-to-client response will not be forwarded through the fabric.

13.2(9b) and later

CSCux97329

With the common pervasive gateway, only the packet destination to the virtual MAC is being properly Layer 3 forwarded. The packet destination to the bridge domain custom MAC fails to be forwarded. This is causing issues with certain appliances that rely on the incoming packets’ source MAC to set the return packet destination MAC.

13.2(9b) and later

CSCuy00084

BCM does not have a stats option for yellow packets/bytes, and so BCM does not show in the switch or APIC GUI stats/observer.

13.2(9b) and later

CSCuy02543

Bidirectional Forwarding Detection (BFD) echo mode is not supported on IPv6 BFD sessions carrying link-local as the source and destination IP address. BFD echo mode also is not supported on IPv4 BFD sessions over multihop or VPC peer links.

13.2(9b) and later

CSCuy06749

Traffic is dropped between two isolated EPGs.

13.2(9b) and later

CSCuy22288

The iping command’s replies get dropped by the QOS ingress policer.

13.2(9b) and later

CSCuy25780

An overlapping or duplicate prefix/subnet could cause the valid prefixes not to be installed because of batching behavior on a switch. This can happen during an upgrade to the 1.2(2) release.

13.2(9b) and later

CSCuy47634

EPG statistics only count total bytes and packets. The breakdown of statistics into multicast/unicast/broadcast is not available on new hardware.

13.2(9b) and later

CSCuy56975

You must configure different router MACs for SVI on each border leaf if L3out is deployed over port-channels/ports with STP and OSPF/OSPFv3/eBGP protocols are used. There is no need to configure different router MACs if you use VPC.

13.2(9b) and later

CSCuy61018

The default minimum bandwidth is used if the BW parameter is set to "0", and so traffic will still flow.

13.2(9b) and later

CSCuy96912

The debounce timer is not supported on 25G links.

13.2(9b) and later

CSCuz13529

With the N9K-C93180YC-EX switch, drop packets, such as MTU or storm control drops, are not accounted for in the input rate calculation.

13.2(9b) and later

CSCuz13614

For traffic coming out of an L3out to an internal EPG, stats for the actrlRule will not increment.

13.2(9b) and later

CSCuz13810

When subnet check is enabled, a ToR does not learn IP addresses locally that are outside of the bridge domain subnets. However, the packet itself is not dropped and will be forwarded to the fabric. This will result in such IP addresses getting learned as remote endpoints on other ToRs.

13.2(9b) and later

CSCuz47058

SAN boot over a virtual Port Channel or traditional Port Channel does not work.

13.2(9b) and later

CSCuz65221

A policy-based redirect (PBR) policy to redirect IP traffic also redirects IPv6 neighbor solicitation and neighbor advertisement packets.

13.2(9b) and later

CSCva98767

The front port of the QSA and GLC-T 1G module has a 10 to 15-second delay as it comes up from the insertion process.

13.2(9b) and later

CSCvb36823

If you have only one spine switch that is part of the infra WAN and you reload that switch, there can be drops in traffic. You should deploy the infra WAN on more than one spine switch to avoid this issue.

13.2(9b) and later

CSCvb39965

Slow drain is not supported on FEX Host Interface (HIF) ports.

13.2(9b) and later

CSCvb49451

In the case of endpoints in two different TOR pairs across a spine switch that are trying to communicate, an endpoint does not get relearned after being deleted on the local TOR pair. However, the endpoint still has its entries on the remote TOR pair.

13.2(9b) and later

CSCvd11146

Bridge domain subnet routes advertised out of the Cisco ACI fabric through an OSPF L3Out can be relearned in another node belonging to another OSPF L3Out on a different area.

13.2(9b) and later

CSCvd63567

After upgrading a switch, Layer 2 multicast traffic flowing across PODs gets affected for some of the bridge domain Global IP Outsides.

13.2(9b) and later

CSCvo22890

There is intermittent packet loss for some flows through FX2 leaf switches when the no-drop class is enabled.

13.2(9b) and later

CSCvo27881

Ping stops working between a VM behind a non-FIE EPG and a VM behind an FIE-enabled EPG.

13.2(9b) and later

CSCvo39715

When downgrading a Cisco ACI fabric, the OSPF neighbors go down after downgrading the Cisco APICs from a 3.2 or later release to a pre-3.2 release. After the upgrade, the switches are still running a 13.2 or later release.

13.2(9b) and later

CSCvr74879

100G links are down when pushing a 40G speed policy for non-SRBD optics.

13.2(9b) and later

CSCwb77570

If the switches are running a 13.2 release and the Cisco APIC is upgraded a 5.2 release, the ISIS process dumps a core.

13.2(9b) and later