Cisco Nexus 3400-S NX-OS Release Notes, Release 9.2(2v)

This document describes the features, caveats, and limitations of Cisco NX-OS Release 9.2(2v) software for use on the following switches:

■        Cisco Nexus 3408-S

Use this document with documents listed in Related Documentation.

Table 1 shows the online change history of this document.

Table 1 Online History Change

Date

Description

October 4, 2019

Updated hyperlink to the Transceiver Matrix.

October 3, 2019

Added Cisco Nexus 3432D-S to New Hardware.

September 27, 2019

Created the release notes for Release 9.2(2v)

Contents

Introduction

New and Changed Information

Caveats

Guidelines and Limitations for Hardware

Related Documentation

Obtaining Documentation and Submitting a Service Request

Introduction

Cisco NX-OS software is a data center-class operating system designed for performance, resiliency, scalability, manageability, and programmability at its foundation. The Cisco NX-OS software provides a robust and comprehensive feature set that meets the requirements of virtualization and automation in mission-critical data center environments. The modular design of the Cisco NX-OS operating system makes zero-impact operations a reality and enables exceptional operational flexibility.

System Requirements

Table 2 Cisco Nexus 3400-S Switches

Product ID

Description

N3K-C3408-S

4-RU, 8-slot modular chassis which is configurable with up to 128 100-Gigabit SFP28 ports or 32 400-Gigabit ports..

N3K-C3432D-S

1-RU, with 32 QSFP-DD+ ports, 2 SFP+ ports, 2 management ports, 1 console port, and 1 USB port.

Table 3 Cisco Nexus 3400-S Fans and Fan Trays

Product ID

Description

Quantity

Cisco Nexus Switches

NXA-FAN-35CFM-PE

Port-side exhaust (blue coloring)

6

3432D-S

NXA-FAN-35CFM-PI

Port-side intake (burgandy coloring)

6

3432D-S

NXA-FAN-300CFM-PI

Port-side Intake (burgandy coloring)

6

3408-S

Table 4 Cisco Nexus 3400-S Power Supplies

Product ID

Description

Quantity

Cisco Nexus Switches

NXA-PAC-2KW-PI

2-KW AC power supply with port-side intake airflow (burgandy coloring)

2

3408-S

NXA-PAC-1500W-PE

1500-W AC power supply with port-side exhaust airflow (blue coloring)

2

3432D-S

NXA-PAC-1500W-PI

1500-W AC power supply with port-side intake airflow (burgandy coloring)

2

3432D-S

NXA-PDC-2KW-PI

2-KW DC power supply with port-side intake airflow (burgandy coloring)

2

3408-S

NXA-PHV-2KW-PI

2-KW AC power supply with port-side intake airflow (burgandy coloring)

2

3408-S

NXA-PHV-1100W-PE

1100-W power supply with port-side exhaust (blue coloring)

2

3432D-S

NXA-PHV-1100W-PI

1100-W power supply with port-side intake airflow (burgandy coloring)

2

3432D-S

Supported Optics

To determine which transceivers and cables are supported by this switch, 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.

New and Changed Information

This section lists the following topics:

■        New Hardware Features in Cisco NX-OS Release 9.2(2v)

■        New Software Features in Cisco NX-OS Release 9.2(2v)

New Hardware Features in Cisco NX-OS Release 9.2(2v)

Cisco NX-OS Release 9.2(2v) supports the following hardware:

■        The Cisco Nexus 3432D-S (N3K-C3432D-S) is a 1 rack unit (RU) switch with 32 QSFP-DD+ ports, 2 SFP+ ports, 2 management ports, 1 console port, and 1 USB port. This switch supports both port-side exhaust and port-side intake airflow schemes. The switch requires one AC power supply for operation, but it can have a second power supply for redundancy.

New Software Features in Cisco NX-OS Release 9.2(2v)

Cisco NX-OS Release 9.2(2v) supports the following software features:

Interfaces Features

■      Added breakout support for the Cisco Nexus 3432D-S switches. Breakout enables a 100 and 400 Gigabit Ethernet port to be split into independent and logical Ethernet ports at module level or at the per-port level.

For more information, see the Cisco Nexus 3400-S NX-OS Interfaces Configuration Guide, Release 9.2(2).

Licensing Features

■        Introduced the following licenses for the Cisco Nexus 3408-S platform switches:

o    Essentials subscription tier-based licenses: N3K-ES-XM-1Y, N3K-ES-XM-3Y, and N3K-ES-XM-5Y.

For more information, see the Cisco NX-OS Licensing Guide.

QoS Features

■        Priority Flow Control Pause Headroom – This feature allows you to override the default buffer space (headroom) size by configuring headroom values in an ingress queuing policy.

For more information, see the Cisco Nexus 3400-S NX-OS QoS Configuration Guide, Release 9.2(2).

Security Features

■        IP ACL:

o    Added the ability to identify traffic using TCP flags.

o    Added support for ifacl-all and racl-all TCAM regions.

o    Added the ability to match RDMA and ECN bits with ACLs.

o    Added UDF support to IPv6 PACL and RACL.

■        Per-Port Statictics: Added the ability to get per-port statistics when the same Ipv4 and IPv6 ACL is applied to multiple interfaces.

For more information, see the Cisco Nexus 3400-S NX-OS Security Configuration Guide, Release 9.2(2).

Unicast Routing Features

■        Neighbor Discovery Local Proxy on SVIs: Added support for IPv6.

For more information, see the Cisco Nexus 3400-S NX-OS Unicast Routing Configuration Guide, Release 9.2(2).

Caveats

This section includes the following topics:

■        Open Software Caveats-Cisco NX-OS Release 9.2(2v)

■        Known Behaviors—Cisco NX-OS Release 9.2(2v)

Open Software Caveats—Cisco NX-OS Release 9.2(2v)

The following table lists the open software caveats in the Cisco NX-OS Release 9.2(2v). Click the bug ID to access the Bug Search tool and see additional information about the bug.

Table 5 Open Software Caveats in Cisco NX-OS Release 9.2(2v)

Bug ID

Description

CSCvp58297

N9k::Inno:Sub-if Classification not retaining cos post routed traffic (Ver : 27)

CSCvq82612

port-channels have different labels  with one PO shut on reload

Known Behaviors—Cisco NX-OS Release 9.2(2v)

None in this release.

Guidelines and Limitations for Hardware

This section lists guidelines and limitations for hardware related to the Cisco Nexus 3408-S Switch, NXM-X16C and NXM-X4D LEMs, and supported transceivers for the NX-OS Release 9.2(2v).

■        Guidelines and Limitations for the Platform

■        Guidelines and Limitations for Supported Transceivers

Guidelines and Limitations for the Platform

The N3400-S platform has the following guidelines and limitations:

■        40G is not supported on the 100G LEM.

■        2x50 G breakout on odd ports is not supported on 100 G LEM.

Guidelines and Limitations for Supported Transceivers

To determine which transceivers and cables are supported by this switch, 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.

The following transceivers are supported on the N3K-C3408-S switch:

■        The following 400G transceivers are supported on 400G LEM:

o    400G 1M and 2M Molex

o    400G 1M, 2M, and 2.5M Luxshare

o    400G FR4 Innolight

o    400G DR4 Innolight

■        100G 3M copper can take up to a maximum of 11 seconds to link up across 400G and 100G LEMs.

Related Documentation

The entire Cisco Nexus 3000 and 9000 Series NX-OS documentation set is available at the following URLs:

https://www.cisco.com/c/en/us/support/switches/nexus-3000-series-switches/tsd-products-support-series-home.html

https://www.cisco.com/c/en/us/support/switches/nexus-9000-series-switches/tsd-products-support-series-home.html

The Cisco Nexus 3000 and 9000 Series NX-API REST SDK User Guide and API Reference is available at the following URL:

https://developer.cisco.com/site/nx-os/docs/n3k-n9k-api-ref/

The Cisco NX-OS Supported MIBs URL:

ftp://ftp.cisco.com/pub/mibs/supportlists/nexus9000/Nexus9000MIBSupportList.html

New Documentation

The Cisco Nexus 3400-S NX-OS Software Upgrade and Downgrade Guide, Release 9.2(2) is available at the following URL:

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus3400s/sw/922/upgrade/guide/b-cisco-nexus-3400-s-nx-os-software-upgrade-downgrade-guide-922.html

Documentation Feedback

To provide technical feedback on this document, or to report an error or omission, please send your comments to nexus9k-docfeedback@cisco.com. We appreciate your feedback.

Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation and gathering additional information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:

https://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html

Open a service request online at:

https://tools.cisco.com/ServiceRequestTool/create/launch.do

Subscribe to the What’s New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service and Cisco currently supports RSS version 2.0.

This product includes cryptographic software written by Eric Young (eay@cryptsoft.com). This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit. (http://www.openssl.org/). This product includes software written by Tim Hudson (tjh@cryptsoft.com).

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Cisco Nexus 9000 Series NX-OS Release Notes, Release 9.2(2v)

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