Cisco Nexus 3000 Series NX-OS Release Notes, Release 9.3(7a)
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This document describes the features, issues, and exceptions of Cisco NX-OS Release 9.3(7a) software for use on Cisco Nexus 3000 Series switches.
Note: The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product.
The following table lists the changes to this document.
Table 1. Changes to this Document
| Date |
Description |
| June 18, 2021 |
New and Enhanced Software Features
Cisco NX-OS Release 9.3(7a) does not support any new software features.
Cisco NX-OS Release 9.3(7a) does not support any new hardware.
| Bug ID |
Description |
| Headline: Nexus 3548 sending ARP requests for static ARP entry Issue follows below pattern: ● The first time when you try to ping concerned IP, Nexus sends a broadcast ARP request ● Once the first broadcast ARP request is sent, Nexus sends unicast ARP requests every 45 seconds when ARP timeout is set to 60 seconds. Workarounds: You can clear the ARP entry using force-delete option but the moment the physical interface flaps the issue resurfaces. Use the clear ip arp force-delete command. |
|
| Headline: Nexus 3548 - Boot times increased after upgrade to 9.3(6) |
| Bug ID |
Description |
| Headline: SSH connection rejected with FIPS enabled using any SSH key [N9K/N3K 9.3(7)] Symptoms: SSH connections will be rejected if the FIPS feature is enabled on release 9.3(7). This issue is similar to CSCvu10721, but SSH is also rejected for ECDSA key. There is a general available SMU to address this issue on release 9.3(7): https://software.cisco.com/download/home/286314783/type/286278856/release/9.3(7) SMU installion instructions: Cisco Nexus 9000 Series NX-OS System Management Configuration Guide, Release 9.3(x) |
|
| Headline: L2FM process crash after l2fm_mcec_get_mac_handler Symptoms: The L2FM process crashes after the vPC comes online. Workarounds: Disconnect the vPC peer link and upgrade both peers separately. After they are both upgraded and the vPC is connected back, they should remain stable. |
|
| Headline: NX-OS memory leak on ipqosmgr UUID libacfg.so Symptoms: Memory starts decresing on system resources. Workaround: None |
The following tables list the Cisco Nexus 9000 Series hardware that Cisco NX-OS Release 9.3(7a) supports. For additional information about the supported hardware, see the Hardware Installation Guide for your Cisco Nexus 9000 Series device.
Table 1. Cisco Nexus 3000 and 3100 Series Switches
| Product ID |
Description |
| N3K-C3048TP-1GE |
Cisco Nexus 3048 switch |
| N3K-C3064PQ |
Cisco Nexus 3064 switch |
| N3K-C3064PQ-10GE |
Cisco Nexus 3064-E switch |
| N3K-C3064PQ-10GX |
Cisco Nexus 3064-X switch |
| N3K-C3064TQ-10GT |
Cisco Nexus 3064-TQ switch |
| N3K-C31108PC-V |
Cisco Nexus 31108PC-V switch |
| N3K-C31108TC-V |
Cisco Nexus 31108TC-V switch |
| N3K-C31128PQ-10GE |
Cisco Nexus 31128PQ, 96 x 10 Gb-SFP+, 8 x 10-Gb QSFP+, 2-RU switch |
| N3K-C3132C-Z |
Cisco Nexus 3132C-Z switch |
| N3K-C3132Q-40GE |
Cisco Nexus 3132Q switch |
| N3K-C3132Q-40GX |
Cisco Nexus 3132Q-X switch |
| N3k-C3132Q-V |
Cisco Nexus 3132Q-V switch |
| N3K-C3132Q-XL |
Cisco Nexus C3132Q-XL switch |
| N3K-C3164Q-40GE |
Cisco Nexus 3164Q, 64 x 40-Gb SFP+, 2-RU switch |
| N3K-C3172PQ-10GE |
Cisco Nexus 3172PQ switch |
| N3K-C3172PQ-XL |
Cisco Nexus C3172PQ-XL switch |
| N3K-C3172TQ-10GT |
Cisco Nexus 3172TQ switch |
| N3K-C3172TQ-XL |
Cisco Nexus C3172TQ-XL switch |
Table 2. Cisco Nexus 3000 and 3100 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-C3048-FAN |
Cisco Nexus 3048 fan module with forward airflow (port-side exhaust) |
| N3K-C3048-FAN-B |
Cisco Nexus 3048 fan module with reverse airflow (port-side intake) |
| N3K-C3064-X-BA-L3 |
Cisco Nexus 3064-X reverse airflow (port-side intake) AC power supply |
| N3K-C3064-X-BD-L3 |
Cisco Nexus 3064-X forward airflow (port-side intake) DC power supply |
| N3K-C3064-X-FA-L3 |
Cisco Nexus 3064-X forward airflow (port-side exhaust) AC power supply |
| N3K-C3064-X-FD-L3 |
Cisco Nexus 3064-X forward airflow (port-side exhaust) DC power supply |
| N3K-PDC-350W-B |
Cisco Nexus 2000 DC power supply with reverse airflow (port-side intake) |
| 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, reversed airflow (port-side intake) |
| NXA-FAN-30CFM-F |
Cisco Nexus 2000 or 3000 individual fan, forward airflow (port-side exhaust) |
| NXA-PAC-500W |
Cisco Nexus 3064-T 500W forward airflow (port-side exhaust) AC power supply |
| NXA-PAC-500W-B |
Cisco Nexus 3064-T 500W reverse airflow (port-side intake) AC power supply |
Table 3. Cisco Nexus 3200 Series Switches
| Product ID |
Description |
| N3K-C3232C |
Cisco Nexus 3232C switch |
| N3K-C3264C-E |
Cisco Nexus 3264C-E switch |
| N3K-C3264Q |
Cisco Nexus 3264Q switch |
Table 4. Cisco Nexus 3400-S Series Switches
| Product ID |
Description |
| N3K-C3408-S |
Cisco Nexus 3408-S switch with 32 ports of QSFP-DD |
| N3K-C3432D-S |
Cisco Nexus 3432D-S switch with 32 ports of QSFP-DD |
Table 5. Cisco Nexus 3500 Series Switches
| Product ID |
Description |
| N3K-C3524P-10G |
Cisco Nexus 3524 switch |
| N3K-C3524P-10GX |
Cisco Nexus 3524 switch, 24 SFP+ |
| N3K-C3524P-XL |
Cisco Nexus 3524-XL switch |
| N3K-C3548P-10G |
Cisco Nexus 3548 switch |
| N3K-C3548P-10GX |
Cisco Nexus 3548X switch, 48 SFP+ |
| N3K-C3548P-XL |
Cisco Nexus 3548-XL switch |
Table 6. 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 7. Cisco Nexus 3600 Series 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 40-Gigabit 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. |
The Cisco Management Information Base (MIB) list includes Cisco proprietary MIBs and many other Internet Engineering Task Force (IETF) standard MIBs. These standard MIBs are defined in Requests for Comments (RFCs). To find specific MIB information, you must examine the Cisco proprietary MIB structure and related IETF-standard MIBs supported by the Cisco Nexus 3000 Series switch. The MIB Support List is available at the following FTP sites:
ftp://ftp.cisco.com/pub/mibs/supportlists/nexus3000/Nexus3000MIBSupportList.html
To determine which transceivers and cables are supported by Cisco Nexus 3000 Series switches, see the Transceiver Module (TMG) Compatibility Matrix.
To see the transceiver specifications and installation information, see https://www.cisco.com/c/en/us/support/interfaces-modules/transceiver-modules/products-installation-guides-list.html.
Upgrading Cisco Nexus 3048 Family Switches
To perform a software upgrade to Cisco NX-OS Release 9.3(7a) from earlier releases, see Upgrade Nexus 3048 NX-OS Software document.
Upgrading Cisco Nexus 3000 and Cisco Nexus 3100 Family Switches
To perform a software upgrade to Cisco NX-OS Release 9.3(7a) from earlier releases, see Upgrade Nexus 3000 and 3100 NX-OS Software document.
Upgrading Cisco Nexus 3200 and Cisco Nexus 3400-S Family Switches
To perform a software upgrade, follow the instructions in the Cisco Nexus 3400-S Series NX-OS Software Upgrade and Downgrade Guide, Release 9.3(x).
Upgrade Path to Cisco NX-OS Release 9.3(7a)
For the list of platforms and releases that support a non-disruptive In-Service Software Upgrade (ISSU) to Cisco NX-OS Release 9.3(7a), see the Cisco NX-OS ISSU Support Matrix.
The following disruptive upgrade paths are supported:
· For Cisco Nexus 3232C and 3264Q switches:
Release 7.0(3)I3(1) or later -> Release 9.3(7a)
· For Cisco Nexus 3264C-E switches:
Release 9.2(1) or 9.2(2) -> Release 9.3(7a)
· For Cisco Nexus 3408-S and 3432D-S switches:
Release 9.2(2t) to 9.2(2v) -> Release 9.3(7a)
Release 9.2(2v) -> Release 9.3(7a)
Upgrading Cisco Nexus 3524 and Cisco Nexus 3548 Family Switches
To perform a software upgrade to Cisco NX-OS Release 9.3(7a) from earlier releases, see Upgrade Nexus 3524 and 3548 NX-OS Software document.
Upgrading Cisco Nexus 3600 Family Switches
To perform a software upgrade, follow the instructions in the Cisco Nexus 3600 Series NX-OS Software Upgrade and Downgrade Guide, Release 9.3(x).
Upgrade Path to Cisco NX-OS Release 9.3(7a)
The following disruptive upgrade paths are supported:
· Release 9.2(1) or 9.2(2)-> Release 9.3(7a)
· Release 7.0(3)F3(4) -> Release 9.3(7a)*
· Release 7.0(3)F3(3c) -> Release 9.3(7a)*
· Release 7.0(3)F3(3) -> Release 7.0(3)F3(4) -> Release 9.3(7a)*
* These upgrade paths require write erase and reload.
Note: Graceful Insertion and Removal (GIR) Maintenance mode is not supported on Cisco Nexus 3500 Platform Switches.
Cisco Nexus 3000 Series documentation: Cisco Nexus 3000 Series switch documentation
Cisco Nexus 3000 and 9000 Series NX-API REST SDK User Guide and API Reference: Cisco Nexus 3000 and 9000 Series NX-API REST SDK User Guide and API Reference
Cisco Nexus OpenConfig YANG Reference, Release 9.3(x): Cisco Nexus OpenConfig YANG, Release 9.3(x)
Licensing information:
● Cisco Nexus 9000 and 3000 Series NX-OS Switch License Navigator
To provide technical feedback on this document, or to report an error or omission, please send your comments to nexus3k-docfeedback@cisco.com. We appreciate your feedback.
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