Cisco Nexus 9000 Series NX-OS IP Fabric for Media Release Notes, Release 7.0(3)I4(2)

This document describes the Cisco IP fabric for media solution, limitations, and caveats for Cisco NX-OS Release 7.0(3)I4(2) software for use on the following switches:

■        Cisco Nexus 9236C switch

■        Cisco Nexus 9272Q switch

■        Cisco Nexus 92160YC-X switch

Use this document in combination with documents listed in Related Documentation.

Table 1 shows the online change history for this document.

Table 1 Online History Change

Date

Description

July 21, 2016

Created the release notes for Cisco Nexus 9000 Series NX-OS IP Fabric for Media Release 7.0(3)I4(2).

Contents

IP Fabric for Media

Supported Device Hardware

Open Caveats

Limitations

Upgrade and Downgrade Instructions

Related Documentation

Obtaining Documentation and Submitting a Service Request

IP Fabric for Media

Today, the broadcast industry uses a serial digital interface (SDI) router and SDI cables to transport video and audio traffic. The SDI cables can carry only a single unidirectional signal. As a result, a large number of cables, frequently stretched over long distances, is required, making it difficult and time-consuming to expand or change an SDI-based infrastructure.

Cisco’s IP fabric for media solution replaces the SDI router in live production studios. In an IP-based infrastructure, a single cable has the capacity to carry multiple bidirectional traffic flows and can support different flow sizes without requiring changes to the physical infrastructure. The Cisco Nexus 9000 Series switches in conjunction with the Cisco non-blocking multicast (NBM) algorithm (an intelligent traffic management algorithm) provides a reliable, scalable IP fabric for the broadcast industry. In addition, this IP fabric solution provides zero-drop multicast transport and support for PTP media profiles.

Cisco Nexus 9000 Series NX-OS IP Fabric for Media Release 7.0(3)I4(2) supports a spine-leaf topology that consists of one spine switch and up to nine leaf switches.

Supported Device Hardware

Table 2 lists the hardware that the Cisco Nexus 9000 Series NX-OS IP Fabric for Media Release 7.0(3)I4(2) supports. For additional information about the supported hardware, see the Hardware Installation Guide for your Cisco Nexus 9000 Series device.

Table 2 Cisco Nexus 9000 Series Hardware

Product ID

Hardware

Role in Topology

N9K-C9236C

Cisco Nexus 9236C 1-RU switch with 36 40-/100-Gigabit QSFP28 ports (144 10-/25-Gigabit ports when using breakout cables).

Spine or leaf switch

N9K-C9272Q

Cisco Nexus 9272Q 2-RU switch with 72 40-Gigabit Ethernet QSFP+ ports (up to 35 of the ports [ports 37-71] also support breakout cables providing up to 140 10-Gigabit connections)

Spine or leaf switch

N9K-C92160YC-X

Cisco Nexus 92160YC-X 1-RU switch with 48 10-/25-Gigabit SFP+ downlink ports and 6 40-Gigabit QSFP+ uplink ports, with 4 of the uplink ports capable of supporting QSFP28 transceivers (100 Gigabits).

Leaf switch

Open Caveats

Table 3 lists the open caveats in Cisco Nexus 9000 Series NX-OS IP Fabric for Media Release 7.0(3)I4(2). Click the bug ID to access the Bug Search tool and see additional information about the bug.

Table 3 Open Caveats in Cisco Nexus 9000 Series NX-OS IP Fabric for Media Release 7.0(3)I4(2)

Bug ID

Description

CSCva41092

When a leaf switch has default and non-default VRFs connected to the spine switch, tokens may not be allocated correctly.

Limitations

This section lists limitations related to Cisco Nexus 9000 Series NX-OS IP Fabric for Media Release 7.0(3)I4(2):

·         Disabling and reenabling NBM is supported only when no existing flows are in the system. Learning of any existing flows on feature restart is not supported.

·         The MRIB might install hardware FIB entries for flows before NBM is ready to accept the flows. As a result, NBM could miss the first data packets.

·         You must configure the SPT threshold infinity (using the ip pim spt-threshold infinity command) when using NBM.

·         When the NBM feature is enabled, multicast (S,G) routes are not created on leaf switches when the source is located on a remote leaf switch.

Upgrade and Downgrade Instructions

To perform a software upgrade or downgrade, follow the installation instructions in the Cisco Nexus 9000 Series NX-OS Software Upgrade and Downgrade Guide and refer to Cisco Nexus 9000 Series NX-OS Release Notes, Release 7.0(3)I4(2) for specific upgrade and downgrade information related to this release.

Related Documentation

·         Cisco Nexus 9000 Series NX-OS IP Fabric for Media Solution Guide

http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/7-x/ip_fabric_for_media/solution/guide/b_Cisco_Nexus_9000_Series_NX-OS_IP_Fabric_for_Media_Solution_Guide_Release_7x.html

·         Cisco IP Fabric for Media Solution video

http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/hw/videos/ip_fabric_for_media/cisco_ip_fabric_for_media_solution.html

·         Cisco Nexus 9000 Series NX-OS Release Notes, Release 7.0(3)I4(2)

http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/7-x/release/notes/70342_nxos_rn.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

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

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

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Cisco Nexus 9000 Series NX-OS IP Fabric for Media Release Notes, Release 7.0(3)I4(2)

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