Overview
NX‑OS Release 14.0(1) provides a comprehensive feature set for Nexus 9000 Series switches operating in ACI Mode, delivering performance, resiliency, scalability, and programmability enhancements.
This release is intended for Nexus 9000 Series switches in ACI Mode and is designed to be used with APIC Release 4.0(1).
Supported Hardware
| Hardware Type | Product ID | Description |
|---|---|---|
| Chassis | N9K-C9504 | 9504 chassis with 4 I/O slots |
| Chassis | N9K-C9508 | 9508 chassis with 8 I/O slots |
| Chassis component | N9K-C9508-FAN | Fan tray |
| Power supply | N9K-PAC-3000W-B | 3000 W AC power supply |
| GEM module | N9K-M12PQ | 12-port or 8-port GEM |
| GEM module | N9K-M6PQ | 6-port GEM |
| GEM module | N9K-M6PQ-E | 6-port 40 GbE expansion module |
| Spine switch | N9K-C9332C | 32×40/100G QSFP28 spine switch |
| Spine switch | N9K-C9336PQ | 36×40 GbE QSFP spine switch |
| Spine switch | N9K-C9364C | 64×40/100G QSFP28 spine switch |
| Spine switch | N9K-C9508-B1 | 9508 bundle with supervisor & PSUs |
| Spine switch | N9K-C9508-B2 | 9508 expanded fabric bundle |
| Spine switch | N9K-C9516 | 9516 chassis with 16 slots |
| Spine fan | N9K-C9300-FAN3 | Fan (port side intake) |
| Spine fan | N9K-C9300-FAN3-B | Fan (port side exhaust) |
| Fabric module | N9K-C9504-FM | 9504 40G fabric module |
| Fabric module | N9K-C9504-FM-E | 9504 100G fabric module |
| Fabric module | N9K-C9508-FM | 9508 40G fabric module |
| Fabric module | N9K-C9508-FM-E | 9508 100G fabric module |
| Fabric module | N9K-C9508-FM-E2 | 9508 100G fabric module (E2) |
| Fabric module | N9K-C9516-FM | 9516 100G fabric module |
| Fabric module | N9K-C9516-FM-E2 | 9516 100G fabric module (E2) |
| Linecard | N9K-X9732C-EX | 32×40/100G QSFP28 line card |
| Linecard | N9K-X9736C-FX | 36×40/100G QSFP28 line card |
| Linecard | N9K-X9736PQ | 36×40Gb QSFP aggregation line card |
| System controller | N9K-SC-A | System controller |
| Supervisor | N9K-SUP-A | Supervisor module |
| Supervisor | N9K-SUP-A+ | Supervisor module (enhanced) |
| Supervisor | N9K-SUP-B | Supervisor B module |
| Supervisor | N9K-SUP-B+ | Supervisor B+ module |
| Leaf switch | N9K-C93240YC-FX2 | 48×1/10/25G + 12×40/100G QSFP28 leaf |
| Leaf switch | N9K-C93108TC-EX | 48×1/10GBASE-T + 6×40/100G QSFP28 leaf |
| Leaf switch | N9K-C93108TC-FX | 48×1/10GBASE-T + 6×40/100G QSFP28 leaf |
| Leaf switch | N9K-C93120TX | 96×1/10GBASE-T + 6×40G leaf |
| Leaf switch | N9K-C93128TX | 96×1/10GBASE-T + 6/8×40G leaf |
| Leaf switch | N9K-C93180LC-EX | 24×40G + 6×40/100G leaf |
| Leaf switch | N9K-C93180YC-EX | 48×1/10/25G + 6×40/100G leaf |
| Leaf switch | N9K-C93180YC-FX | 48×1/10/25G + 6×40/100G leaf |
| Leaf switch | N9K-C9332PQ | 32×40Gb QSFP leaf switch |
Supported FEX Models
Fabric Extender support remains for Nexus 2000 Series modules compatible with this release.
New and Changed Information
- Enhanced hardware monitoring and fault reporting
- Extended telemetry and analytics capabilities
- Expanded ACI policy automation support
- CLI and NX-API enhancements for programmability
Compatibility Information
- APIC Release 4.0(1) controller
- AVS Release 5.2(1)SV3(3.10)
- ASA 5585 and later platforms
- ASAv virtual firewall Release 9.2.1
- F5 BIG-IP LTM physical and virtual platforms
- Citrix NetScaler MPX/SDX/VPX platforms
- VMware vCenter / vShield platforms
Usage Guidelines
Protocols always permitted within the fabric:
- UDP destination port 161 (SNMP)
- TCP source & destination port 179 (BGP)
- OSPF
- UDP destination ports 67/68 (BOOTP/DHCP)
- IGMP
- PIM
- UDP source port 53 (DNS replies)
- TCP source port 25 (SMTP replies)
- TCP destination port 443 (HTTPS)
- UDP source/destination port 123 (NTP)
Open Bugs
| Bug ID | Description |
|---|---|
| CSCvy30381 | After replacing hardware for a leaf switch, front-panel ports go to admin-down for 45 minutes. |
| CSCvy43640 | Leaf node crashes when PFC or LLFC is enabled on stretched or multi-tier fabrics. |
| CSCva98767 | Front port of QSA/GLC-T 1G module has delayed up time after insertion. |
| CSCvb36823 | Single spine in infra WAN causes drops after reload. |
| CSCvb39965 | Slow drain unsupported on FEX HIF ports. |
| CSCvb49451 | Remote endpoint does not relearn after deletion. |
| CSCvd11146 | Bridge domain OSPF L3Out multicast across POD affected. |
| CSCvd63567 | L2 multicast across PODs affected after upgrade. |
| CSCvo39715 | OSPF neighbors go down after APIC downgrade. |
Resolved Bugs
| Bug ID | Description | Fixed In |
|---|---|---|
| CSCuw12565 | Bridge domain learning diagnostic enhancement | 14.0(1h) |
| CSCvf18506 | Spine switch frame truncation on EX linecards | 14.0(1h) |
| CSCvg95192 | Missing endpoint info in spine switches | 14.0(1h) |
| CSCvh97883 | Hardware sensor sends reg packets without RPM | 14.0(1h) |
| CSCvi11133 | Zoning rule not programmed | 14.0(1h) |
| CSCvi22143 | Multi-dest traffic not sent to uplinks/downlinks | 14.0(1h) |
| CSCvj99258 | Kernel soft lockup in dmesg logs | 14.0(1h) |
Known Behaviors
| Bug ID | Description | Exists In |
|---|---|---|
| CSCuo37016 | FEX HIF L3 packets not spanned | 14.0(1h) |
| CSCuo50533 | Multicast VLAN not spanned on VLAN filter | 14.0(1h) |
| CSCup65586 | Tunnel Rx/Tx counters show zero | 14.0(1h) |
| CSCup82908 | VLAN ID mismatch between show commands | 14.0(1h) |
| CSCup92534 | Continuous threshold messages generated | 14.0(1h) |
| CSCuq39829 | Rescue user can log in even with TACACS chosen | 14.0(1h) |
| CSCuq46369 | Extra bytes added to untagged packets on SPAN | 14.0(1h) |
| CSCuq77095 | OSPF checksum zero on border leaf bash | 14.0(1h) |
| CSCuq83910 | GARP not flooded in ARP unicast mode | 14.0(1h) |
| CSCuq92447 | Modifying L2Unknown Unicast causes bounce | 14.0(1h) |
| CSCuq93389 | Multiple IP endpoint aging issue | 14.0(1h) |
| CSCur01336 | PSU not detected after OIR | 14.0(1h) |
| CSCur81822 | Access-port status always trunk | 14.0(1h) |
| CSCus18541 | MSTP TCN may not flush endpoints | 14.0(1h) |
| CSCus29623 | Transceiver type shown incorrectly | 14.0(1h) |
| CSCus43167 | TCAM usage faults on leaf with low usage | 14.0(1h) |
| CSCus54135 | BGP default route not leaked | 14.0(1h) |
| CSCus61748 | Fan airflow sensor interpretation issue | 14.0(1h) |
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