Overview
NX‑OS 10.5(3s)F is a maintenance release focused on enhancing performance, segmentation, and service acceleration for N9300 Series Smart Switches.
New Features
Smart Switch Acceleration
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Layer‑4 to Layer‑7 Service Acceleration
The N9300 Series supports enhanced DPU-based acceleration for service traffic processing, improving efficiency in high-throughput and low-latency environments.
Layer‑4 Zone Segmentation
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Zone Segmentation Support
Introduces support for Layer‑4 zone segmentation, offering traffic isolation and enhanced security.
Supported Hardware Models
Smart Switch Platforms
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N9324C‑SE1U — 1‑RU Smart Switch with 24 × 100G ports, high‑performance ASIC and multiple DPUs.
Resolved Issues (Selected Bug IDs)
| Bug ID | Description |
|---|---|
| CSCwf97464 | Service crash observed after upgrading to 10.5(3)F in high-density environments. |
| CSCwh28965 | Incorrect port statistics shown in the show interface command after system reboot. |
Open Issues
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As with any new release, users are encouraged to carefully monitor device performance post-upgrade, particularly in environments running multi-node configurations.
Upgrade and Downgrade Procedures
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ISSU is supported for non-disruptive upgrades.
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Downgrades should follow standard procedures, with validation for feature and hardware compatibility.
Transceiver and Optics
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Supports a wide range of optics for the N9300 Series, including 100G QSFP, 400G QSFP-DD, and multi-rate breakout cables.
Additional Notes
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EPLD Bundling: EPLD images are now bundled with NX‑OS images, simplifying install and upgrade.
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Transceiver Squelch Control: New CLI option for better signal integrity in sensitive environments.
Open Issues (Selected Bug IDs)
| Bug ID | Description |
|---|---|
| CSCwj00999 | Misreported link state when upgrading from 10.3.x to 10.5(3)F. |
| CSCwj38966 | Instability in BGP routing with vPC in hybrid configurations. |
Hardware Support
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N9K‑C9504 — 4‑slot chassis, supports up to 400G line cards.
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N9K‑C9508 — 8‑slot chassis, supports 800G throughput.
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N9K‑X9836DM‑A — 36 × 400G QSFP-DD line card.
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N9K‑X9736C‑FX — 36 × 40/100G line card.
For model lookup, hardware details, and Bug ID reference, visit:
https://itmall.sale/