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Cisco Nexus 3548 series User Manual

Cisco Nexus 3548 series
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Cisco Nexus 3548 Switch NX-OS System Management Configuration
Guide, Release 7.x
First Published: 2018-06-14
Americas Headquarters
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-1706
USA
http://www.cisco.com
Tel: 408 526-4000
800 553-NETS (6387)
Fax: 408 527-0883

Table of Contents

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Cisco Nexus 3548 series Specifications

General IconGeneral
Forwarding Rate720 Mpps
Latency250 ns
Rack Units1 RU
VLANs4096
Jumbo Frame SupportUp to 9216 bytes
Operating SystemCisco NX-OS
Flash Memory8 GB
AC Input Voltage100 to 240 VAC
AC Input Frequency50 to 60 Hz
Ports48 x 10GE SFP+
Power SupplyDual hot-swappable power supplies
AirflowPort-side exhaust and port-side intake
Management Ports1 x 10/100/1000 Ethernet, 1 x RS-232 console
Layer 3 Interfaces256
Operating Temperature32 to 104°F (0 to 40°C)
Storage Temperature-40 to 158°F (-40 to 70°C)
Humidity5% to 95% (non-condensing)

Summary

Preface

Audience

Defines the target audience for the publication, typically network administrators.

Document Conventions

Explains conventions used for commands, arguments, and syntax in the document.

Obtaining Documentation and Submitting a Service Request

Provides guidance on how to get Cisco documentation and submit service requests.

Documentation Feedback

Instructs users on how to provide feedback or report errors in the document.

Related Documentation for Cisco Nexus 3000 Series Switches

Lists other relevant Cisco Nexus 3000 Series documentation.

Chapter 1: New and Changed Information

New and Changed Information

Provides an overview of significant changes and new features in the current release of the guide.

Chapter 2: Overview

System Management Features

Describes the system management features documented in the guide, including Active Buffer Monitoring, Warp Mode, User Accounts and RBAC, and Session Manager.

Chapter 3: Configuring PTP

Information About PTP

Introduces PTP as a time synchronization protocol and its benefits over NTP.

PTP Device Types

Details common PTP device types: Ordinary, Boundary, and Transparent clocks.

PTP Process

Explains the two phases of the PTP process: master-slave hierarchy establishment and clock synchronization.

High Availability for PTP

States that stateful restarts are not supported for PTP.

Licensing Requirements for PTP

Specifies that PTP requires no license and is bundled with Cisco NX-OS.

Guidelines and Limitations for PTP

Lists configuration guidelines and limitations for PTP, including supported modes and protocols.

Default Settings for PTP

Presents a table of default PTP parameters.

Configuring PTP

Provides steps to configure PTP globally, including enabling the feature and setting source IP addresses.

Chapter 5: Configuring System Message Logging

Information About System Message Logging

Introduces system message logging for controlling message destinations and severity levels.

Licensing Requirements for System Message Logging

States that system message logging requires no license.

Guidelines and Limitations for System Message Logging

Mentions that system messages are logged to the console and logfile by default.

Default Settings for System Message Logging

Lists default parameters for system message logging, such as console and log file logging.

Configuring System Message Logging

Details how to configure system message logging to terminal sessions and log files.

Configuring DOM Logging

Explains how to enable and disable transceiver digital optical monitoring (DOM) logging.

Verifying the System Message Logging Configuration

Lists commands to verify system message logging configuration.

Chapter 6: Configuring Smart Call Home

Information About Smart Call Home

Describes Smart Call Home as a feature for notifying about critical system events via email.

Guidelines and Limitations for Smart Call Home

Outlines guidelines and limitations for using the Smart Call Home feature.

Prerequisites for Smart Call Home

Lists the necessary prerequisites for configuring Smart Call Home.

Default Call Home Settings

Presents default parameters for Call Home, including message size and SMTP port.

Configuring Smart Call Home

Guides through registering for Smart Call Home and configuring contact information.

Verifying the Smart Call Home Configuration

Provides commands to verify the Smart Call Home configuration.

Sample Syslog Alert Notification in Full-Text Format

Shows a sample full-text format for a syslog alert notification.

Sample Syslog Alert Notification in XML Format

Displays a sample XML format for a syslog alert notification.

Chapter 7: Configuring Session Manager

Information About Session Manager

Explains Session Manager for implementing configuration changes in batch mode.

Guidelines and Limitations for Session Manager

Lists guidelines and limitations for Session Manager, including ACL support and command limits.

Configuring Session Manager

Provides steps to create a session, configure ACLs, verify, commit, save, and discard sessions.

Verifying the Session Manager Configuration

Lists commands to verify Session Manager configuration information.

Chapter 8: Configuring the Scheduler

Information About the Scheduler

Introduces the scheduler for defining and setting timetables for maintenance activities.

Licensing Requirements for the Scheduler

States that the scheduler feature does not require a license.

Guidelines and Limitations for the Scheduler

Lists guidelines and limitations for the scheduler, including potential failure conditions.

Default Settings for the Scheduler

Presents default parameters for the scheduler, such as scheduler state and log file size.

Configuring the Scheduler

Guides through enabling the scheduler, defining log file size, and configuring remote user authentication.

Verifying the Scheduler Configuration

Lists commands to verify the scheduler configuration.

Configuration Examples for the Scheduler

Provides examples for creating, scheduling, and displaying scheduler jobs and their results.

Standards for the Scheduler

States that no new or modified standards are supported by the scheduler feature.

Chapter 9: Configuring SNMP

Information About SNMP

Introduces SNMP as an application-layer protocol for network device monitoring and management.

Licensing Requirements for SNMP

Specifies that SNMP requires no license and is bundled with Cisco NX-OS.

Guidelines and Limitations for SNMP

Lists guidelines and limitations for SNMP, including MIB support and security levels.

Default SNMP Settings

Presents default SNMP parameters, such as license notifications and link status notification type.

Configuring SNMP

Details how to configure SNMP users, communities, message encryption, and access.

Disabling SNMP

Provides steps to disable SNMP on the device.

Verifying the SNMP Configuration

Lists commands to verify the SNMP configuration.

Chapter 10: Configuring RMON

Information About RMON

Introduces RMON as an IETF standard for network monitoring, supporting alarms, events, and logs.

Configuration Guidelines and Limitations for RMON

Lists guidelines and limitations for RMON, including SNMP user and notification receiver requirements.

Configuring RMON

Details how to configure RMON alarms and events.

Verifying the RMON Configuration

Lists commands to verify the RMON configuration.

Default RMON Settings

Presents default settings for RMON parameters, indicating no alarms or events are configured by default.

Chapter 11: Configuring Online Diagnostics

Information About Online Diagnostics

Explains online diagnostics for hardware verification during bootup or reset and health monitoring.

Configuring Online Diagnostics

Guides on configuring bootup diagnostics level to complete or bypass tests.

Verifying the Online Diagnostics Configuration

Lists commands to verify online diagnostics configuration.

Default Settings for Online Diagnostics

Presents default settings for online diagnostics, with bootup diagnostics level set to complete.

Chapter 12: Configuring Embedded Event Manager

About Embedded Event Manager

Introduces Embedded Event Manager (EEM) for detecting and handling critical events for high availability.

Embedded Event Manager Policies

Explains EEM policies consist of event and action statements, and covers preconfigured and user-created policies.

Licensing Requirements for Embedded Event Manager

Specifies that EEM requires no license and is bundled with Cisco NX-OS.

Prerequisites for Embedded Event Manager

States that network-admin privileges are required to configure EEM.

Default Settings for Embedded Event Manager

Shows default settings for EEM, with System Policies active.

Defining an Environment Variable

Describes defining environment variables as an optional step for configuring common values.

Defining a User Policy Using the CLI

Provides steps to define a user policy using the CLI, including registering applets.

Configuring Event Statements

Guides on configuring event statements for EEM policies, covering various event types.

Configuring Action Statements

Details how to configure action statements for EEM policies, including CLI commands and syslog messages.

Defining a Policy Using a VSH Script

Explains how to write EEM policies using VSH scripts.

Registering and Activating a VSH Script Policy

Guides on registering and activating VSH script policies.

Overriding a System Policy

Explains how to override system policies in EEM.

Configuring Syslog as an EEM Publisher

Details how to configure syslog as an EEM publisher to monitor syslog messages from the switch.

Chapter 13: Configuring SPAN

Information About SPAN

Introduces SPAN (Switched Port Analyzer) for network traffic analysis using network analyzers.

Guidelines and Limitations for SPAN

Lists guidelines and limitations for SPAN.

SPAN Sources

Defines SPAN sources as interfaces from which traffic is monitored, supporting Ethernet, port channels, and VLANs.

Characteristics of Source Ports

Describes characteristics of source ports, including types, direction, and session limits.

SPAN Destinations

Defines SPAN destinations as interfaces that monitor source ports, supporting Ethernet interfaces.

Characteristics of Destination Ports

Describes characteristics of destination ports, including physical port requirements and exclusion rules.

SPAN and ERSPAN Filtering

Explains SPAN and ERSPAN filtering to monitor specific traffic flows and reduce packet drops.

SPAN and ERSPAN Sampling

Details SPAN and ERSPAN sampling to monitor a subset of packets and reduce bandwidth usage.

SPAN and ERSPAN Truncation

Describes SPAN and ERSPAN truncation to reduce packet size based on MTU.

Creating or Deleting a SPAN Session

Provides steps to create a SPAN session by assigning a session number.

Configuring an Ethernet Destination Port

Guides on configuring an Ethernet interface as a SPAN destination port.

Configuring Source Ports

Details how to configure source ports for SPAN sessions, supporting Ethernet ports.

Configuring Source Port Channels or VLANs

Explains configuring port channels or VLANs as source ports for SPAN sessions.

Configuring the Description of a SPAN Session

Guides on providing a descriptive name for a SPAN session for ease of reference.

Activating a SPAN Session

Provides steps to activate a SPAN session to duplicate packets from sources to destinations.

Suspending a SPAN Session

Explains how to suspend a SPAN session, which is shut by default.

Configuring a SPAN Filter

Details configuring SPAN filters for local and ERSPAN-source sessions.

Configuring SPAN Sampling

Guides on configuring sampling for local and ERSPAN-source sessions.

Configuring SPAN Truncation

Explains how to configure truncation for local and ERSPAN-source sessions.

Displaying SPAN Information

Lists commands to display SPAN session information.

Chapter 14: Configuring ERSPAN

Information About ERSPAN

Introduces ERSPAN (Encapsulated Remote Switching Port Analyzer) for mirroring traffic over an IP network.

Licensing Requirements for ERSPAN

Specifies that ERSPAN requires no license and is bundled with Cisco NX-OS.

Prerequisites for ERSPAN

States the prerequisite for ERSPAN, requiring Ethernet interface configuration.

Guidelines and Limitations for ERSPAN

Lists guidelines and limitations for ERSPAN, including supported traffic types and session limits.

Default Settings for ERSPAN

Presents default settings for ERSPAN sessions, which are created in the shut state.

Configuring ERSPAN

Guides on configuring ERSPAN source sessions, including global origin IP and granularity.

Configuration Examples for ERSPAN

Provides examples for configuring ERSPAN source and destination sessions.

Additional References

Lists related documents, such as the Cisco Nexus NX-OS System Management Command Reference.

Chapter 15: Configuring Warp SPAN

Information About Warp SPAN

Introduces Warp SPAN as an AlgoBoost feature for spanning traffic to multiple ports with low latency.

Guidelines and Limitations for Warp Span

Lists guidelines and limitations for Warp SPAN, including port requirements and group configurations.

Configuring Warp SPAN

Guides on enabling Warp SPAN and configuring its destination groups.

Verifying Warp SPAN Mode Configuration

Provides commands to verify the Warp SPAN mode configuration.

Feature History for Warp SPAN

Indicates that Warp SPAN was introduced in release 5.0(3)A1(2).

Chapter 16: Configuring DNS

Information About DNS Client

Explains DNS client functionality for translating hostnames to IP addresses.

Prerequisites for DNS Clients

States the prerequisite for DNS clients: a DNS name server on the network.

Licensing Requirements for DNS Clients

Specifies that DNS requires no license and is bundled with Cisco NX-OS.

Default Settings for DNS Clients

Presents default settings for DNS clients, with the DNS client enabled.

Configuring DNS Clients

Guides on configuring DNS clients to use DNS servers, including static mappings and domain lookups.

Chapter 17: Configuring Traffic Forwarding Modes

Information About Warp Mode

Describes Warp Mode as a hardware-accelerated forwarding mechanism for reduced latency.

Guidelines and Limitations for Warp Mode

Lists guidelines and limitations for Warp Mode, including route table reduction and unsupported features.

Enabling and Disabling Warp Mode

Provides steps to enable or disable Warp Mode on the device.

Verifying Warp Mode Status

Lists commands to verify Warp Mode status and TCAM sizes.

Feature History for Warp Mode

Indicates that Warp Mode was introduced in release 5.0(3)A1(1).

Chapter 18: Configuring Active Buffer Monitoring

Information About Active Buffer Monitoring

Introduces Active Buffer Monitoring for detecting network congestion using buffer occupancy data.

Configuring Active Buffer Monitoring

Guides on configuring active buffer monitoring for unicast or multicast traffic, including threshold and sampling.

Displaying Buffer Histogram Data

Lists commands to display buffer histogram data, including summary and detailed information.

Chapter 19: Performing Software Maintenance Upgrades (SMUs)

About SMUs

Defines Software Maintenance Upgrades (SMUs) as packages containing fixes for specific defects.

Package Management

Outlines the general procedure for adding, activating, and committing SMU packages.

Prerequisites for SMUs

Lists prerequisites for SMU activation/deactivation, including user group and line card status.

Guidelines and Limitations for SMUs

Lists guidelines and limitations for SMUs, including package dependencies and compatibility.

Performing a Software Maintenance Upgrade for Cisco NX-OS

Provides guidance on performing SMU upgrades, including preparation steps.

Preparing for Package Installation

Details steps to prepare for SMU package installation using show commands.

Copying the Package File to a Local Storage Device or Network Server

Guides on copying SMU package files to local storage or network servers.

Adding and Activating Packages

Provides steps to add and activate SMU packages on the device.

Committing the Active Package Set

Explains how to commit the active package set to make activation persistent across reloads.

Deactivating and Removing Packages

Details steps to deactivate and remove SMU packages.

Displaying Installation Log Information

Lists commands to display installation log information for operations.

Chapter 20: Configuring Rollback

Information About Rollbacks

Introduces the rollback feature for taking configuration snapshots and reapplying them.

Guidelines and Limitations for Rollbacks

Lists guidelines and limitations for rollbacks, including checkpoint limits and naming conventions.

Creating a Checkpoint

Provides steps to create configuration checkpoints with optional descriptions.

Implementing a Rollback

Guides on implementing a rollback to a checkpoint name or file, including atomic rollbacks.

Verifying the Rollback Configuration

Lists commands to verify the rollback configuration.

Chapter 21: Configuring User Accounts and RBAC

Information About User Accounts and RBAC

Explains User Accounts and RBAC for defining user access levels based on roles and rules.

Guidelines and Limitations for User Accounts

Lists guidelines and limitations for user accounts and RBAC, including password requirements and role assignments.

Configuring User Accounts

Provides steps to configure user accounts, including setting usernames, passwords, and roles.

Configuring RBAC

Guides on creating user roles and rules, feature groups, and interface/VLAN policies.

Verifying the User Accounts and RBAC Configuration

Lists commands to verify user accounts and RBAC configuration.

Configuring User Accounts Default Settings for the User Accounts and RBAC

Presents default settings for user accounts and RBAC parameters.

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