Overview
NX‑OS Release 15.2(4) provides updates for Nexus 9000 Series switches operating in ACI Mode.
This release is supported only on Nexus 9000 Series switches in ACI Mode and includes supported hardware, open issues, and resolved issues.
It aligns with APIC Release 5.2(4).
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 | N9K-C9508-B1 | 9508 chassis bundle with supervisor, PSUs, system controllers, fans, and fabric modules |
| Chassis | N9K-C9508-B2 | 9508 chassis bundle with six fabric modules |
| Chassis | N9K-C9516 | 9516 chassis with 16 I/O slots |
| Line card | N9K-X9716D-GX | 16‑port 400G QSFP line card |
| Line card | N9K-X9736C-FX | 36×40/100G QSFP28 line card |
| Line card | N9K-X9736Q-FX | 36×40G QSFP28 line card |
| Line card | N9K-X9732C-EX | 32×40/100G QSFP28 line card |
| Supervisor | N9K-SUP-A | Supervisor module |
| Supervisor | N9K-SUP-A+ | Enhanced supervisor module |
| Supervisor | N9K-SUP-B | Supervisor B module |
| Supervisor | N9K-SUP-B+ | Supervisor B+ module |
| System controller | N9K-SC-A | System controller |
| Fabric module | N9K-C9504-FM-G | 400G capable fabric module |
| Fabric module | N9K-C9508-FM-G | 400G capable fabric module |
| Fabric module | N9K-C9504-FM-E | Cloud scale fabric module |
| Fabric module | N9K-C9508-FM-E | Cloud scale fabric module |
| Fabric module | N9K-C9508-FM-E2 | Enhanced cloud scale fabric module |
| Fabric module | N9K-C9516-FM-E2 | Enhanced cloud scale fabric module |
| Leaf switch | N9K-C93180YC-FX3 | 48×100M/1/10/25G + 6×10/25/40/50/100G leaf |
| Spine switch | N9K-C9364C-GX | 64×100G QSFP28 spine switch |
| Spine switch | N9K-C93600CD-GX | 64×100/400G QSFP‑DD spine switch |
| Spine switch | N9K-C93360YC-FX2 | 60×40/100G spine switch |
No Longer Supported Hardware
Starting with 15.0(1) and later releases, the following hardware is no longer supported in ACI fabrics prior to upgrading to this release:
- Spine switch: N9K‑C9336PQ
- Modular spine line card: N9K‑X9736PQ
- Modular fabric modules: N9K‑C9504‑FM, N9K‑C9508‑FM, N9K‑C9516‑FM
- Legacy leaf switches: N9K‑C9372PX‑E, N9K‑C9372TX‑E, N9K‑C9332PQ, N9K‑C9372PX, N9K‑C9372TX, N9K‑C9396PX, N9K‑C9396TX, N9K‑C93128TX
- Expansion modules: N9K‑M12PQ, N9K‑M6PQ, N9K‑M6PQ‑E
Supported FEX Models
Fabric Extenders supported in this release are compatible with Nexus 2000 Series FEX modules used in ACI fabrics.
Open Issues
| Bug ID | Description | Exists In |
|---|---|---|
| CSCwf21503 | All controller ports in a fabric are disabled due to a wiring issue causing TEP mismatch. | 15.2(4e) and later |
| CSCwh81430 | Leaf switch reboots and RJ45 ports remain link down after reload. | 15.2(4e) and later |
| CSCvg85886 | ARP glean request generated incorrectly for isolated EPG endpoints. | 15.2(4d) and later |
| CSCwn63197 | BUM traffic on a specific leaf is impacted due to FTAG Tree route calc excluding certain links. | 15.2(4d) and later |
| CSCvw89840 | vPC TEP multicast and unknown unicast dropped when pod redundancy triggers. | 15.2(4d) and later |
| CSCvx31008 | Multi‑Pod infra B2B OSPF link down does not raise expected faults. | 15.2(4d) and later |
| CSCvy10791 | VXLAN ID inconsistent assignment when multiple VLAN pools present. | 15.2(4d) and later |
| CSCvz70186 | PTP client occasional spikes in a three‑node topology with specific leaf. | 15.2(4d) and later |
| CSCwa34808 | Non‑related flows cached and exported incorrectly including infra and user traffic. | 15.2(4d) and later |
| CSCwa45189 | Static MAC config fails when dynamic MAC present with vIP. | 15.2(4d) and later |
| CSCwa47686 | PTP enablement fails on >128 leaf switches in large pods. | 15.2(4d) and later |
| CSCwa60455 | QinQ edge ports forward data before strict loop detection completes. | 15.2(4d) and later |
| CSCwa91817 | Local to remote leaf traffic drop due to missing route info in database. | 15.2(4d) and later |
| CSCwc23246 | A leaf switch reboots unexpectedly. | 15.2(4d) and later |
| CSCwc67716 | Traffic to reserved UDP ports may experience unexpected drops. | 15.2(4d) and later |
| CSCwd24130 | Line card system time mismatch with NTP time. | 15.2(4d) and later |
| CSCwd29346 | Console continuously outputs latency messages. | 15.2(4d) and later |
| CSCwd36295 | BFD process crashes and listed in show cores. | 15.2(4d) and later |
| CSCwd44102 | Fiber optic interfaces display incorrect type. | 15.2(4d) and later |
| CSCwd49996 | Front panel ports may come up before policy programming completes. | 15.2(4d) and later |
| CSCwd75707 | Parser drops IP‑in‑IP packets on ingress leaf. | 15.2(4d) and later |
| CSCwd83289 | After reload, HAL unresponsive and processes generate cores. | 15.2(4d) and later |
| CSCwe15885 | Remote pod subnet not redistributed from BGP to ISIS causing tunnels down. | 15.2(4d) and later |
Resolved Issues
| Bug ID | Description | Fixed In |
|---|---|---|
| CSCvz71778 | Downlinks bring up without policy causing temporary drops until APIC handshake finishes. | 15.2(4g) |
| CSCvy92710 | Tech support collection error missing commands issue fixed. | 15.2(4f) |
| CSCvy08825 | Certain crash issues resolved in this release. | 15.2(4d) |
If needed, visit https://itmall.sale/