Release Notes for Cisco Nexus 3000 Series, Release 10.6(1)F
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Cisco Nexus 3000 Series switches, Release 10.6(1)F
Cisco Nexus 3000 Series switches, Release 10.6(1)F
This document describes the features, issues, and limitations of Cisco NX-OS software Release 10.6(1)F for use on the Cisco Nexus 9000 Series switches.
| Date |
Description |
| August 13, 2025 |
Release 10.6(1)F became available. |
This section provides a brief description of the new software features introduced in this release.
Table 1. New software features for Cisco Nexus 3000 Series switches, Release 10.6(1)F
| Product impact |
Feature |
Description |
| Feature Set |
Support RPKI community when connected via eBGP |
Beginning with Cisco NX-OS Release 10.6(1)F, admin can utilize BGP Prefix Origin Validation State Extended Community to signal and accept origin-as validation state to and from external BGP peers. |
| PIM Graceful-SPT Feature to Be Default |
Beginning with Cisco NX-OS Release 10.6(1)F, the ip pim spt-switch-graceful command is enabled by default. This feature minimizes packet loss by allowing a graceful switchover from the shared tree to the shortest path tree (SPT) where the shared tree is used until the shortest path tree (SPT) is fully established and verified |
|
| Smart License HTTP Connect Message - User Agent String |
From NX-OS Release 10.6(1)F, for packet captures, the HTTP User-Agent string is enabled in HTTP Connect messages for Smart Licensing transport. The User-Agent string is set to cisco-nxos, allowing proxies to identify Nexus devices and facilitate connectivity. In earlier releases, nexus switches had to be identified manually. |
Cisco NX-OS Release 10.6(1)F does not include any new hardware features for the Cisco Nexus 3000 Series.
This table lists the resolved issues in this specific software release.
Note: This software release may contain bug fixes first introduced in other releases. To see additional information, click the bug ID to access the Cisco Bug Search Tool.
Table 2. Resolved issues for Cisco Nexus 3000 Series switches, Release 10.6(1)F
| Bug ID |
Description |
| N9K DNS: source-interface not working for ip name-server command in 10.5(3) |
|
| 'ipv6 link-local' configuration missing after reload |
|
| SYN-TIMEOUT and FINRST-TIMEOUT timers activate when ASCII reload happens, even with no tcp-nat tcam carved |
|
| Observing telemetry crash post ISSU 10.4(6) – 10.5(3)F |
|
| High CPU due to vsh.bin with rapid logging of sev 0,1,2 syslogs |
|
| MTM process crash when large number of MAC addresses in the network |
|
| Secure Erase feature for 3548XL on 10.4 not working |
|
| N3500-XL reports frequently excessive latency in range of multiple seconds. |
|
| N9k Telemetry stops streaming under certain conditions |
|
| NXOS - OSPFv3 adj to FTD fails with IPSec ESP Auth |
|
| [Telemetry] Large number of AAAA DNS queries are sent by the nexus switch to the DNS server to resolve telegraf hostname, even though IPv6 is not configured |
|
| N3500 PTP T3 time stamp may get stuck |
|
| N9K/N3K unexpected reload due to sysmgr shutdown |
There are no open issues for Cisco Nexus 3000 Series in Cisco NX-OS Release 10.5(3)F.
Note: This software release may contain open bugs first identified in other releases. To see additional information, click the bug ID to access the Cisco Bug Search Tool.
There are no open issues for Cisco Nexus 3000 Series in Cisco NX-OS Release 10.5(3)F.
| Bug ID |
Description |
| N3500-XL reports frequently excessive latency in range of multiple seconds. |
|
| N3500 PTP T3 time stamp may get stuck |
This section lists the hardware support information:
Table 3. Cisco Nexus 3500 Switches
| Product ID |
Description |
| N3K-C3524P-XL |
Cisco Nexus 3524-XL switch |
| N3K-C3548P-XL |
Cisco Nexus 3548-XL switch |
Table 4. Cisco Nexus 3500 Series Fans, Fan Trays, and Power Supplies
| Product ID |
Description |
| N2200-PAC-400W |
Cisco Nexus 2000 or 3000 400W AC power supply, forward airflow (port side exhaust) |
| N2200-PAC-400W-B |
Cisco Nexus 2000 or 3000 400W AC power supply, reverse airflow (port side intake) |
| N2200-PDC-400W |
Cisco Nexus 2000 or 3000 400W DC power supply, forward airflow (port side exhaust) |
| N3K-PDC-350W-B |
Cisco Nexus 2000 or 3000 350W DC power supply, reverse airflow (port side intake) |
| NXA-FAN-30CFM-B |
Cisco Nexus 2000 or 3000 individual fan, reverse airflow (port side intake) |
| NXA-FAN-30CFM-F |
Cisco Nexus 2000 or 3000 individual fan, forward airflow (port side exhaust) |
Table 5. Cisco Nexus 3600 Switches
| Product ID |
Description |
| N3K-C3636C-R |
The Cisco Nexus 3636C-R is a 1 rack unit (RU) switch with 36 100-Gigabit QSFP28 ports, 40-Gigabit QSFP, 2 management ports, 1 console port, and 1 USB port. The switch supports both port-side exhaust and port-side intake airflow schemes. The switch has two power supplies, one for operations and the other for redundancy. Both power supplies must be either AC power supplies or DC power supplies. |
| N3K-C36180YC-R |
The Cisco Nexus 36180YC-R is a 1 rack unit (RU) switch with 48 1/10/25-Gigabit SFP ports and 6 40Gigabit QSFP/100-Gigabit QSFP28 ports, 1 management port, 1 console port, and 1 USB port. The switch supports both port-side exhaust and port-side intake airflow schemes. The switch has two power supplies, one for operations and the other for redundancy. Both power supplies must be either AC power supplies or DC power supplies. From Cisco NX-OS Release 10.3(3)F, the following AC ports are supported on Cisco Nexus 36180YC-R (N3K-C36180YC-R):
●
AC port-side exhaust (NXA-PAC-750W-PE)
●
AC port-side intake (NXA-PAC-750W-PI)
The following table provides information about spares support:
●
The Typical/Minimum port-side intake and fan speed percentage is 50% and the maximum port-side intake and fan speed percentage is 100%.
●
The Typical/Minimum port-side exhaust and fan speed percentage is 70% and the maximum port-side exhaust and fan speed percentage is 100%.
For information about N3K-C36180YC-R, see Cisco Nexus 3600 Hardware Installation Guide. |
This section provides information about the release packages associated with <product>
Table 6. Software packages for Cisco Nexus 3000 Series switches, Release 10.6(1)F
| Software package |
Description |
Release |
| nxos64-msll.<version>.bin |
64-bit NX-OS image for Cisco Nexus 3000 Series platforms, supported on 3600 series fixed switches and 3500-XL series switches |
10.6(1)F |
For information about transceivers and cables supported on a switch, see the Transceiver Module (TMG) Compatibility Matrix. For the transceiver specifications and installation information, see the Install and Upgrade Guides.
Related resources
| Document Title |
Description |
| Cisco Nexus 3000 Series documentation |
|
| Cisco NX-OS Software Release and Image-naming Convention |
|
| Cisco Nexus 3000 and 9000 Series NXAPI REST SDK User Guide and API Reference |
Cisco Nexus 3000 and 9000 Series NX-API REST SDK User Guide and API Reference |
| Cisco Nexus 3000 and 3000 Series NX-OS Switch License Navigator |
Licensing Information |
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