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Cisco Nexus 3000 Series NX-OS Release Notes, Release 9.3(7a)

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Updated:June 19, 2021

Bias-Free Language

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. Learn more about how Cisco is using Inclusive Language.

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Updated:June 19, 2021
 

 

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

Cisco NX-OS Release 9.3(7a) became available.


 

New and Enhanced Software Features

Cisco NX-OS Release 9.3(7a) does not support any new software features.

New Hardware Features

Cisco NX-OS Release 9.3(7a) does not support any new hardware.

 

Open Issues

Bug ID                    

Description

CSCvx24330

Headline: Nexus 3548 sending ARP requests for static ARP entry

Symptoms: Nexus 3548 is sending ARP requests even when the static ARP entry is applied in subinterfaces.

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.

CSCvx51159

Headline: Nexus 3548 - Boot times increased after upgrade to 9.3(6)

Symptoms: After upgrade from 9.3(5) to 9.3(6), boot times have increase from 20-40 seconds.

Workarounds: None

 

Resolved Issues

Bug ID                    

Description

CSCvy19448

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.

Workarounds: Downgrade to release 9.3(6) or earlier, or upgrade to release 10.1(1) or later.

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)

CSCvy24198

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.

CSCvx57722

Headline: NX-OS memory leak on ipqosmgr UUID libacfg.so

Symptoms: Memory starts decresing on system resources.

Workaround: None

 

Device Hardware

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.

 

MIB Support

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

Supported Optics

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.

 

Upgrade and Downgrade

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.

Related Content

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 NX-OS Licensing Guide

    Cisco Nexus 9000 and 3000 Series NX-OS Switch License Navigator

 

Documentation Feedback

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.

 

Legal Information

Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of Cisco trademarks, go to this URLwww.cisco.com/go/trademarks. Third-party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (1721R)

Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any examples, command display output, network topology diagrams, and other figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses or phone numbers in illustrative content is unintentional and coincidental.

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