Cisco Nexus 3232C and 3264Q NX-OS Release Notes, Release 7.0(3)IX1(2)

First Published: October 5, 2015

Cisco NX-OS Release 7.0(3)IX1(2) is a special release for the Cisco Nexus 3232C and 3264Q switches. This release supports the features in Cisco Nexus 9000 Series NX-OS Release 7.0(3)I1(2) with a few exceptions (see the “Unsupported Features” section).

This release is not supported for the Cisco Nexus 3000 or 9000 Series switches, the Cisco Nexus 3164Q switch, or the Cisco Nexus 31128PQ switch.

This document describes the features, caveats, and limitations for Cisco NX-OS Release 7.0(3)IX1(2) software for use on the Cisco Nexus 3232C and 3264Q switches. Use this document in combination with documents listed in the “Related Documentation” section.

Table 1 shows the online change history for this document.

Table 1. Online History Change

Date

Description

October 5, 2015

Created the release notes for Cisco NX-OS Release 7.0(3)IX1(2).

Contents

■        Introduction

■        System Requirements

■        New and Changed Information

■        Installation Notes

■        Limitations

■        Unsupported Features

■        Open Caveats

■        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.

The Cisco Nexus 3232C and 3264Q switches use an enhanced version of Cisco NX-OS software with a single binary image, which simplifies image management.

System Requirements

This section includes the following sections:

■        Supported Device Hardware

■        Supported Optics

Supported Device Hardware

Tables 2 and 3 list the Cisco Nexus hardware that Cisco NX-OS Release 7.0(3)IX1(2) supports. For additional information about the supported hardware, see the Cisco Nexus 3000 Series Hardware Installation Guide.

Table 2. Cisco Nexus 3232C Switch Hardware

Product ID

Hardware

Quantity

N3K-C3232C

Cisco Nexus 3232C, 32 x 40G/100G 2 x 10G SFP+, 1-RU switch

1

NXA-FAN-30CFM-B

Cisco Nexus fan module, reverse airflow (port-side intake)

4 fans total

NXA-FAN-30CFM-F

Cisco Nexus fan module, forward airflow (port-side exhaust)

4 fans total

NXA-PAC-650W-PI

Cisco Nexus 650W AC power supply (port-side intake)

2 power supplies total

NXA-PAC-650W-PE

Cisco Nexus 650W AC power supply (port-side exhaust)

2 power supplies total

Table 3. Cisco Nexus 3264Q Switch Hardware

Product ID

Hardware

Quantity

N3K-C3264Q

Cisco Nexus 3264Q, 64 x 40G 2 x 10G SFP+, 2-RU switch

1

N9K-C9300-FAN3

Cisco Nexus fan module, forward airflow (port-side intake)

4 fans total

N9K-C9300-FAN3-B

Cisco Nexus fan module, reverse airflow (port-side exhaust)

4 fans total

NXA-PAC-650W-PI

Cisco Nexus 650W AC power supply (port-side intake)

2 power supplies total

NXA-PAC-650W-PE

Cisco Nexus 650W AC power supply (port-side exhaust)

2 power supplies total

Supported Optics

See Cisco 10-, 40-, and 100-Gigabit Ethernet Transceiver Module Compatibility Matrices for a list of supported optical components.

New and Changed Information

This section lists the following topics:

■        New Hardware Features in Cisco NX-OS Release 7.0(3)IX1(2)

■        New Software Features in Cisco NX-OS Release 7.0(3)IX1(2)

New Hardware Features in Cisco NX-OS Release 7.0(3)IX1(2)

Cisco NX-OS Release 7.0(3)IX1(2) supports the following new hardware features:

■        The Cisco Nexus 3232C switch (N3K-C3232C), which is a 1-RU fixed-port switch designed for top-of-rack (TOR) deployment in data centers. This switch has 32 QSFP28 ports. Each QSFP28 port can operate at 10, 25, 40, 50, and 100 Gbps, up to a maximum of 128 10-Gbps, 128 25-Gbps, or 64 50-Gbps ports.

The Cisco Nexus 3232C switch supports an SFP form-factor management port in addition to the traditional RJ-45 management port. Only one of the management ports (RJ-45 or SFP form factor) can be active at any time. The following transceiver types have been qualified for the SFP management port: SFP-GLC-T, SFP-GE-T, and SFP-GLC-SX-MMD.

■        The Cisco Nexus 3264Q switch (N3K-C3264Q), which is a 2-RU fixed-port switch designed for top-of-rack (TOR) or end-of-row (EOR) deployment in data centers. This switch has 64 enhanced QSFP (QSFP+) ports.

New Software Features in Cisco NX-OS Release 7.0(3)IX1(2)

In addition to supporting most of the features in Cisco NX-OS Release 7.0(3)|1(2), Cisco NX-OS Release 7.0(3)IX1(2) includes the following new software features for the Cisco Nexus 3232C and 3264Q switches:

Interfaces Features

■        Dynamic breakout support – The Cisco Nexus 3232C switch supports 40G and 100G interfaces. The dynamic breakout feature enables you to split the switch’s 40G ports into four 10G ports (breakout ports) or the switch’s 100G ports into four 25G ports or two 50G ports. (The Cisco Nexus 3264Q switch does not support breakout ports.)

For more information, see the Cisco Nexus 3232C and 3264Q Switches, Cisco NX-OS Release 7.0(3)IX1(2) – Read Me First.

QoS Features

■        Priority flow control (PFC) – Introduced CLI commands to reduce the overall PFC buffer reservation and improve PFC scalability.

For more information, see the Cisco Nexus 3232C and 3264Q Switches, Cisco NX-OS Release 7.0(3)IX1(2) – Read Me First.

Security Features

■        Control Plane Policing (CoPP) – Cisco NX-OS Release 7.0(3)IX1(2) uses two TCAM regions (CoPP and CoPP system) to implement CoPP. Both regions are carved by default and are mandatory.

■        TCAM regions – Introduced the following TCAM regions: ifacl-lite, racl-lite, vacl-lite, ifacl-udf, racl-udf, l3qos-intra-lite, qos-intra-lite, and vlan-qos-intra-lite.

For more information, see the Cisco Nexus 3232C and 3264Q Switches, Cisco NX-OS Release 7.0(3)IX1(2) – Read Me First.

System Management Features

■        ERSPAN enhancements:

¯    Adds the allow-pfc option to the source interface type rx command to allow the spanning of priority flow control (PFC) frames in the Rx direction.

¯    Adds egress interface information to the output of the show monitor session command.

¯    Adds the ability to span forward packet drops in the ingress pipeline.

¯    Adds support for user-defined field (UDF)-based ERSPAN to help analyze and isolate packet drops in the network.

¯    Adds the set-erspan-gre-proto and set-erspan-dscp actions to the ERSPAN ACL.

■        SPAN enhancements – Adds support for user-defined field (UDF)-based SPAN to help analyze and isolate packet drops in the network.

For more information, see the Cisco Nexus 3232C and 3264Q Switches, Cisco NX-OS Release 7.0(3)IX1(2) – Read Me First and the Cisco Nexus 9000 Series NX-OS System Management Configuration Guide.

Other Features

■        Fast reload – The fast-reload command can be used to reboot the switch faster than during a cold reboot and to upgrade the Cisco NX-OS software.

For more information, see the Cisco Nexus 9000 Series NX-OS Software Upgrade and Downgrade Guide.

Installation Notes

Only one software image is required to load the Cisco NX-OS operating system. For installation instructions, see the Cisco Nexus 9000 Series NX-OS Software Upgrade and Downgrade Guide.

Limitations

This section lists limitations related to Cisco NX-OS Release 7.0(3)IX1(2):

■        Layer 3 routed traffic for missing Layer 2 adjacency information is not flooded back onto VLAN members of ingress units when the source MAC address of routed traffic is a non-VDC MAC address. This limitation is for hardware flood traffic and can occur when the SVI has a user-configured MAC address.

■        The neighbor-down fib-accelerate command is supported in a BGP-only environment.

■        When a routed access control list (ACL) is applied to multiple switched virtual interfaces (SVIs) in the egress direction, TCAM resources are not shared.

■        When a VLAN ACL is applied to multiple VLANs, TCAM resources are not shared.

■        The hardware does not support range checks (Layer 4 operators) in egress TCAM. Because of this, ACL/QoS policies with Layer 4 operations-based classification need to be expanded to multiple entries in the egress TCAM. Egress TCAM space planning should take this limitation into account.

■        If the same QoS policy and ACL is applied on multiple interfaces, the label will be shared only when the QoS policy is applied with the no-stats option.

■        When multiple port VLAN mappings are configured on an interface during a rollback operation, the rollback feature fails.

Unsupported Features

This section lists the features that are supported in Cisco Nexus 9000 Series NX-OS Release 7.0(3)I1(2) but not in Cisco NX-OS Release 7.0(3)IX1(2):

■        Automatic negotiation support for 25G and 50G ports on the Cisco Nexus 3232C switch

■        Cisco Nexus 2000 Series Fabric Extenders (FEX)

■        Cisco NX-OS to ACI conversion (The Cisco Nexus 3232C and 3264Q switches operate only in Cisco NX-OS mode.)

■        Delayed Link Aggregation Control Protocol (LACP)

■        Designated router delay

■        DHCP snooping

■        Dynamic ARP inspection (DAI)

■        Intelligent Traffic Director (ITD)

■        IP source guard (IPSG)

■        Policy-based routing (PBR)

■        Port loopback tests

■        Precision Time Protocol (PTP)

■        Private VLANs (PVLANs)

■        Q-in-Q VLAN tunnels

■        Resilient hashing

■        Switchport blocking

■        Symmetric hashing

■        TAP aggregation

■        Virtual Machine (VM) Tracker

■        Virtual port channel (vPC) peering between Cisco Nexus 3232C or 3264Q switches and Cisco Nexus 9300 Series switches or between Cisco Nexus 3232C or 3264Q switches and Cisco Nexus 3100 Series switches

■        VXLAN

Other Unsupported Features

This section lists the features that are not supported in both Cisco Nexus 9000 Series NX-OS Release 7.0(3)I1(2) and Cisco NX-OS Release 7.0(3)IX1(2):

■        DHCP subnet broadcast is not supported.

■        Due to a Poodle vulnerability, SSLv3 is no longer supported.

Open Caveats—Cisco NX-OS Release 7.0(3)IX1(2)

Table 4 lists the open caveats in Cisco NX-OS Release 7.0(3)IX1(2). Click the bug ID to access the Bug Search tool and see additional information about the bug.

Table 4. Open Caveats in Cisco NX-OS Release 7.0(3)IX1(2)

Bug ID

Description

CSCuu47831

When the no diagnostic monitor module 1 test all command is used to disable all of the diagnostic tests, the RewriteEngineLoopback test is not disabled.

Workaround: To disable the RewriteEngineLoopback test, use the no diagnostic monitor module 1 test 14 command.

CSCuw54615

When the Cisco Nexus 3232C switch is configured to operate in cut-through switching mode, ingress packets with bad CRC frames are dropped.

Related Documentation

The Cisco Nexus 3232C and 3264Q Switches, Cisco NX-OS Release 7.0(3)IX1(2) – Read Me First is available at the following URL:

http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus3232and3264/sw/7x/readme/b_Cisco_Nexus_3232C_and_3264Q_Switch_Read_Me_First.html

The Cisco Nexus 3232C and 3264Q NX-OS Verified Scalability Guide, Release 7.0(3)IX1(2) is available at the following URL:

http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus3232and3264/sw/7x/scalability/guide/b_Cisco_Nexus_3232C_3264Q_Verified_Scalability_703IX12.html

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

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

Configuration Guides

Cisco Nexus 9000 Series NX-OS Fundamentals Configuration Guide

Cisco Nexus 9000 Series NX-OS Interfaces Configuration Guide

Cisco Nexus 9000 Series NX-OS Layer 2 Switching Configuration Guide

Cisco Nexus 9000 Series NX-OS Multicast Routing Configuration Guide

Cisco Nexus 9000 Series NX-OS Quality of Service Configuration Guide

Cisco Nexus 9000 Series NX-OS Security Configuration Guide

Cisco Nexus 9000 Series NX-OS System Management Configuration Guide

Cisco Nexus 9000 Series NX-OS Unicast Routing Configuration Guide

Other Software Documents

Cisco Nexus 7000 Series and 9000 Series NX-OS MIB Quick Reference

Cisco Nexus 9000 Series NX-OS Programmability Guide

Cisco Nexus 9000 Series Software Upgrade and Downgrade Guide

Cisco Nexus 9000 Series NX-OS Troubleshooting Guide

Cisco NX-OS Licensing Guide

Cisco NX-OS XML Interface User Guide

Hardware Documents

Cisco Nexus 3000 Series Hardware Installation Guide

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:

http://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).

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 URL: www.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. (1110R)

Cisco Nexus 3232C and 3264Q NX-OS Release Notes, Release 7.0(3)IX1(2)

© 2015 Cisco Systems, Inc. All rights reserved.