This document describes the Cisco IP fabric for media solution, new software features, and caveats for Cisco NX-OS Release 7.0(3)I7(3) software for use on the following switches:
■ Cisco Nexus 9236C switch
■ Cisco Nexus 9272Q switch
■ Cisco Nexus 92160YC-X switch
■ Cisco Nexus 9364C switch
■ Cisco Nexus 93108TC-EX, 93180LC-EX, and 93180YC-EX switches
■ Cisco Nexus 9348GC-FXP, 93108TC-FX, and 93180YC-FX 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 |
February 9, 2018 | Created the release notes for Cisco Nexus 9000 Series NX-OS IP Fabric for Media Release 7.0(3)I7(3). |
Upgrade and Downgrade Instructions
Obtaining Documentation and Submitting a Service Request
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, many 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 helps transition from an SDI router to an IP-based infrastructure. 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 solution uses Cisco Nexus 9000 Series switches in conjunction with the Cisco non-blocking multicast (NBM) algorithm (an intelligent traffic management algorithm) and without the Cisco DCNM Media Controller to provide a highly reliable (zero drop multicast), highly visible, highly secure, and highly available network.
Cisco Nexus 9000 Series NX-OS IP Fabric for Media Release 7.0(3)I7(3) supports one deployment method:
· A spine-leaf topology—A single or multi-spine deployment method with variable flow size that allows the NBM fabric to form a multicast flow without assistance from the DCNM Media Controller. For deployments with the DCNM Media Controller, see the Cisco Nexus 9000 Series NX-OS IP Fabric for Media Release Notes, Release 7.0(3)I7(2).
Table 2 lists the hardware that the Cisco Nexus 9000 Series NX-OS IP Fabric for Media Release 7.0(3)I7(3) 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 Description | 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 in spine-leaf topology |
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 in spine-leaf topology |
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 in spine-leaf topology |
N9K-C9364C | Cisco Nexus 9364C 2-RU Top-of-Rack switch with 64 40/100-Gigabit QSFP28 ports and 2 1/10-Gigabit SFP+ ports | Spine switch in spine-leaf topology |
N9K-C93108TC-EX | Cisco Nexus 93108TC-EX 1-RU switch with 48 10GBASE-T ports and 6 40/100-Gigabit QSFP28 ports | Leaf switch in spine-leaf topology |
N9K-C93180LC-EX | Cisco Nexus 93180LC-EX 1-RU switch with 32 40/50-Gigabit downlink QSFP+ ports or 18 fixed 100-Gigabit uplink QSFP28 ports | Leaf switch in spine-leaf topology |
N9K-C93180YC-EX | Cisco Nexus 93180YC-EX 1-RU switch with 48 10/25-Gigabit Ethernet ports and 6 40/100-Gigabit QSFP28 ports | Leaf switch in spine-leaf topology |
N9K-C9348GC-FXP | Cisco Nexus 9348GC-FXP switch with 48 100M/1GBASE-T (copper) ports, 4 10/25-Gigabit SFP28 ports, and 2 40/100-Gigabit QSFP ports | Leaf switch in spine-leaf topology |
N9K-C93108TC-FX | Cisco Nexus 93108TC-FX 1-RU Top-of-Rack switch with 48 10GBASE-T (copper) ports and 6 40/100-Gigabit QSFP28 ports | Leaf switch in spine-leaf topology |
N9K-C93180YC-FX | Cisco Nexus 93180YC-FX 1-RU Top-of-Rack switch with 48 10/25-Gigabit SFP28 ports and 6 40/100-Gigabit QSFP28 ports | Leaf switch in spine-leaf topology |
Cisco Nexus 9000 Series NX-OS IP Fabric for Media Release 7.0(3)I7(3) adds supports for the following hardware:
■ Cisco Nexus 9364C switch
■ Cisco Nexus 9348GC-FXP, 93108TC-FX, and 93180YC-FX switches
This section lists the new software features in Cisco Nexus 9000 Series NX-OS IP Fabric for Media Release 7.0(3)I7(3).
■ PIM active mode-This feature allows the NBM fabric to form a multicast flow without assistance from an external controller. It supports the deployment method of a spine-leaf topology without the DCNM Media Controller. This mode supports single or multiple spines and variable flow size.
For more information on these features, see the Cisco Nexus 9000 Series IP Fabric for Media Solution Guide.
Table 3 lists the open caveats in Cisco Nexus 9000 Series NX-OS IP Fabric for Media Release 7.0(3)I7(3). 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)I7(3)
Bug ID | Description |
"clear ip mroute *"on SPINE, prune not sent to FHR | |
Flow will be programmed even if the Policer (ing-nbm) is full |
Cisco NX-OS Release 7.0(3)I7(3) supports only the spine-leaf topology without the DCNM Media Controller. To use a different deployment method, use a release prior to Cisco NX-OS Release 7.0(3)I7(3).
When using ASM (IGMPv2), the bandwidth is reserved between the receiver leaf switch and the spine switch even when the sender is local to the receiver leaf switch.
If you want to migrate from Cisco NX-OS Release 7.0(3)I4(2), you must upgrade your switches to Cisco NX-OS Release 7.0(3)I7(3) and completely change the configuration as the switches need to be reconfigured in NBM PIM active mode. You also need to modify the TCAM allocation. Because most deployments are built using redundant networks, with minimal or no disruption to production, each side of the fabric can be upgraded one after the other.
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 the Cisco Nexus 9000 Series NX-OS Release Notes, Release 7.0(3)I7(3) for specific upgrade and downgrade information related to the release.
· Cisco Nexus 9000 Series IP Fabric for Media Solution Guide
· Cisco Nexus 9000 Series NX-OS Release Notes, Release 7.0(3)I7(3)
· The entire Cisco Nexus 9000 Series NX-OS documentation set is available at the following URL:
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Cisco Nexus 9000 Series NX-OS IP Fabric for Media Release Notes, Release 7.0(3)I7(3)
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