Cisco Nx-Api; Bash Shell; Broadcom Shell; Traffic Routing, Forwarding, And Management - Cisco Nexus 9000 Series Configuration Manual

Overview

Cisco NX-API

The Cisco NX-API provides web-based programmatic access to the Cisco Nexus 9000 Series switches. This
support is delivered through the NX-API open-source web server. The Cisco NX-API exposes the complete
configuration and management capabilities of the command-line interface (CLI) through web-based APIs.
You can configure the switch to publish the output of the API calls in either XML or JSON format. For more
information about the Cisco NX-API, see the Cisco Nexus 9000 Series NX-OS Programmability Guide.
NX-API performs authentication through a programmable authentication module (PAM) on the switch.
Note
Use cookies to reduce the number of PAM authentications and thus reduce the load on PAM.

Bash Shell

The Cisco Nexus 9000 Series switches support direct Linux shell access. With Linux shell support, you can
access the Linux system on the switch in order to use Linux commands and manage the underlying system.
For more information about Bash shell support, see the Cisco Nexus 9000 Series NX-OS Programmability
Guide.

Broadcom Shell

The Cisco Nexus 9000 Series switch front-panel and fabric module line cards contain several Broadcom
ASICs. You can use the CLI to access the command-line shell (bcm shell) for these ASICs. The benefit of
using this method to access the bcm shell is that you can use Cisco NX-OS command extensions such as pipe
include and redirect output to file to manage the output. In addition, the activity is recorded in the system
accounting log for audit purposes, unlike commands entered directly from the bcm shell, which are not recorded
in the accounting log. For more information about Broadcom shell support, see the Cisco Nexus 9000 Series
NX-OS Programmability Guide.
Use Broadcom shell commands with caution and only under the direct supervision or request of Cisco
Caution
Support personnel.

Traffic Routing, Forwarding, and Management

This section describes the traffic routing, forwarding, and management features supported by the Cisco NX-OS
software.

Ethernet Switching

The Cisco NX-OS software supports high-density, high-performance Ethernet systems and provides the
following Ethernet switching features:
• IEEE 802.1D-2004 Rapid and Multiple Spanning Tree Protocols (802.1w and 802.1s)
Cisco Nexus 9000 Series NX-OS Fundamentals Configuration Guide, Release 7.x
Cisco NX-API
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