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Cisco Nexus 9000 Series NX-OS Release Notes, Release 6.1(2)I1(3)

This document describes the features, caveats, and limitations for Cisco NX-OS Release 6.1(2)I1(3) software for use on the Cisco Nexus 9000 Series switches. Use this document in combination with documents listed in the Related Documentation.

shows the online change history for this document.

Table 1 Online History Change

Date

Description

August 7, 2014

Created release notes for Release 6.1(2)I1(3).

February 19, 2015

- Added NLB limitation in the “Limitations” section.

- Added bug ID CSCuq03168 to “Open Caveats—Cisco NX-OS Release 6.1”.

May 4, 2015

Added new limitations to “Limitations”.

January 11, 2015

Added link to ALE port limitations in “Limitations”.

Contents

This document includes the following sections:

- Introduction

- System Requirements

- New and Changed Information

- Installation Notes

- Limitations

- 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 9000 Series uses an enhanced version of Cisco NX-OS software with a single binary image that supports every switch in the series, which simplifies image management.

System Requirements

This section includes the following topics:

- Supported Device Hardware

- Supported Optics

Supported Device Hardware

lists the Cisco Nexus 9000 Series hardware that Cisco NX-OS Release 6.1(2)I1(3) supports.

Table 2 Cisco Nexus 9000 Series Hardware Supported by Cisco NX-OS Release 6.1(2)I1(3)

Product ID

Hardware

Quantity

N9K-C9508

Cisco Nexus 9508, 8-slot chassis

1

N9K-C9508-FM

Cisco Nexus 9500 Series fabric module

6

N9K-C9508-FAN

Cisco Nexus 9508 fan tray assemblies

3

N9K-C9504

Cisco Nexus 9504 4-slot chassis

1

N9K-C9504-FM

Cisco Nexus 9504 fabric module

6

N9K-C9504-FAN

Cisco Nexus 9504 fan trays

3

N9K-X9636PQ

Cisco Nexus 9500 36-port, 40 Gigabit Ethernet QSPF+ aggregation module

4 for the Cisco Nexus 9504

N9K-SC-A

Cisco Nexus 9500 Series System Controller Module

2

N9K-SUP-A

Cisco Nexus 9500 Series supervisor module

2

N9K-C9508-FAN

Cisco Nexus 9508 fan tray assemblies

3

N9K-PAC-3000W-B

Cisco Nexus 9500 Series, 3000 W AC power supply

up to 4 for the Cisco Nexus 9504

Supported Optics

.

Table 3 Transceivers and Cables

Product ID

Transceivers and Cables

QSFP-40G-SR4

40GBASE-SR4 QSFP+ transceiver module for MMF, 4-lanes, 850-nm wavelength, 12-fiber MPO/MTP connector

QSFP-40G-CSR4

40GBASE-CSR4 QSFP+ transceiver module for MMF, 4-lanes, 850-nm wavelength, 12-fiber MPO/MTP connector, 300 m reach with OM3 fiber

QSFP-40G-SR-BD

QSFP+ bidirectional transceiver module, duplex Multimode fiber, LC duplex connector, 100-m reach with OM3 fiber

QSFP-40GE-LR4

40GBASE-LR4 QSFP+ 40G transceiver module for single mode fiber, 4 CWDM lanes in 1310-nm window muxed inside module, duplex LC connector, 10-km, 40G Ethernet rate only

QSFP-4x10G-AC7M

40GBASE-CR4 QSFP+ to four 10GBASE-CU SFP+ direct attach breakout cable assembly, 7 meter active

QSFP-4x10G-AC10M

40GBASE-CR4 QSFP+ to four 10GBASE-CU SFP+ direct attach breakout cable assembly, 10 meter active

QSFP-H40G-CU5M

40GBASE-CR4 QSFP+ direct-attach copper cable, 5 meter passive

QSFP-H40G-CU3M

40GBASE-CR4 QSFP+ direct-attach copper cable, 3 meter passive

QSFP-H40G-CU1M

40GBASE-CR4 QSFP+ direct-attach copper cable, 1 meter passive

QSFP-H40G-ACU7M

40GBASE-CR4 QSFP+ direct-attach copper cable, 7 meter active

QSFP-H40G-ACU10M

40GBASE-CR4 QSFP+ direct-attach copper cable, 10 meter active

Note For the current release, if you are using the 4 10 Gigabit breakout cables with a Cisco Nexus 9000 Series switch, all ports on the I/O module must be set to breakout mode.

New and Changed Information

This section lists the new and changed features in Cisco NX-OS Release 6.1(2)I1(3) and includes the following topics:

- New Hardware Features in Cisco NX-OS Release 6.1(2)I1(3)

- New Software Features in Cisco NX-OS Release 6.1(2)I1(3)

New Hardware Features in Cisco NX-OS Release 6.1(2)I1(3)

Cisco NX-OS Release 6.1(2)I1(3) adds support for the following hardware:

- Cisco Nexus 9504 switch chassis (N9K-C9504) that supports:

– Fabric modules—up to six fabric modules (N9K-C9504-FM) behind the fan trays

– Supervisor modules—up to two supervisor modules (N9K-SUP-A)

– System controllers—up to two system controller modules (N9K-SC-A)

– 36-port 40-Gbps QSFP+ aggregation I/O module (N9K-X9636PQ)

– Fan trays—three (N9K-C9504-FAN)

– AC power supplies (up to four 3-kW AC power supplies (N9K-PAC-3000W-B)

New Software Features in Cisco NX-OS Release 6.1(2)I1(3)

Cisco NX-OS Release 6.1(2)I1(3) supports the following new software features:

- Unicast Features

BGP Per neighbor syslog support—Added the ability to enable or disable neighbor status change messages for a specific neighbor

- QoS Support for 8q Mode

When you configure QoS features, and the system requests MQC objects, you can use system-defined objects for 4q mode or system-defined objects for 8q mode.

The following switches support system-defined objects for 8q mode:

– Cisco Nexus 9516 (which Cisco NX-OS Release 6.1(2)I1(3) does not support)

– Cisco Nexus 9508

– Cisco Nexus 9504

Changing to 8q mode from the default 4q mode allows you to direct network traffic to queues 4 through 7, which provides 4 additional queues over the currently available 4 queues.

Installation Notes

Only one software image (called nx-os) is required to load the Cisco NX-OS operating system. This image runs on all Cisco Nexus 9000 Series switches.

Limitations

Cisco NX-OS Release 6.1(2)I1(3) does not support the following features:

- The Generic Online Diagnostics (GOLD) bootup and periodic port loopback tests

- An ERSPAN type destination

- An egress filter on an ACL-based SPAN

- Cisco NX-OS Release 6.1(2)I2(2b) supports flooding for Microsoft Network Load Balancing (NLB) unicast mode on Cisco Nexus 9500 Series switches but not on Cisco Nexus 9300 Series switches. NLB is not supported in max-host system routing mode. NLB multicast mode is not supported on Cisco Nexus 9500 or 9300 Series switches.

Note To work around the situation of Unicast NLB limitation, we can statically hard code the ARP and MAC address pointing to the correct interface. Please refer to bug ID CSCuq03168 in detail in the “Open Caveats—Cisco NX-OS Release 6.1” section.

- The following features are not enabled in this release:

– All VLAN features of SPAN/ERSPAN

– FEX

– Layer 2 and vPC

– FabricPath and OTV

– LISP

– MPLS

– Fiber Channel

– Fiber Channel over Ethernet (FCoE)

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

- When VACL (VLAN ACL) is applied to multiple VLANs, TCAM resources are not shared.

- N9K 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.

- Limitations for ALE uplink ports are listed at the following URL:

Caveats

This section includes the following topic:

- Open Caveats—Cisco NX-OS Release 6.1

Open Caveats—Cisco NX-OS Release 6.1

lists the open caveats in Cisco NX-OS Release 6.1(2)I1(3). 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 6.1(2)I1(3)

Bug ID

Description

command to display internal forwarding utilization has not been implemented.

Support for link pause is needed on the Cisco Nexus 9500 Series device.

There is no interface counter available on Layer 3 subinterfaces

The ACL consistency check does not work on subinterfaces and IPv6 ACLs.

Multicast packet drops occur when the fabric module reloads.

Benign syslog messages appear when there is an online insertion and removal (OIR) of the standby supervisor module.

CSCuq03168

Microsoft NLB traffic being routed into the destination VLAN is experiencing packet loss.

CSCuq10868

A port-channel interface cannot be created when PFC mode on is enabled on a port.

CSCuq14123

Following an upgrade from Cisco NX-OS Release 6.1(2)I1(3) to 6.1(2)I2(2b), PFC stops transmitting.

Related Documentation

This section lists the product documentation for Cisco NX-OS Release 6.1(2)I1(3), which is available at the following URL:

Cisco NX-OS Configuration Guides

Other Software Documents

Cisco Nexus 9000 Series NX-OS System Messages Reference

Hardware Documents

Obtaining Documentation and Submitting a Service Request

, which also lists all new and revised Cisco technical documentation, at:

Open a service request online at:

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Cisco Nexus 9000 Series NX-OS Release Notes, Release 6.1(2)I1(3)

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