Cisco Nexus 4001I and 4005I Switch Module for IBM BladeCenter NX-OS Configuration Guide
Product Overview
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Product Overview

Table Of Contents

Product Overview

Cisco NX-OS Software for the Cisco Nexus 4001I and 4005I Switch Module for IBM BladeCenter

Common Software Throughout the Data Center

Modular Software Design

Serviceability

Switched Port Analyzer

Ethanalyzer

Call Home

Online Diagnostics

Manageability

Simple Network Management Protocol

Role-Based Access Control

Cisco NX-OS Device Configuration Methods

Traffic Routing, Forwarding, and Management

Ethernet Switching

IP Multicast

FCoE Initialization Protocol

Quality of Service

Network Security Features

Typical Deployment Topology

Supported Standards


Product Overview


This chapter provides an overview of the Cisco NX-OS software and includes the following sections:

Cisco NX-OS Software for the Cisco Nexus 4001I and 4005I Switch Module for IBM BladeCenter

Serviceability

Manageability

Traffic Routing, Forwarding, and Management

FCoE Initialization Protocol

Quality of Service

Network Security Features

Typical Deployment Topology

Supported Standards

Cisco NX-OS Software for the Cisco Nexus 4001I and 4005I Switch Module for IBM BladeCenter

This section describes the Cisco NX-OS software for the Cisco Nexus 4001I and 4005I Switch Module for IBM BladeCenter.

The Cisco Nexus 4001I and 4005I Switch Module for IBM BladeCenter (also referred in this document as the switch) is a Layer 2 device, which runs Cisco NX-OS. The Cisco NX-OS Release 4.1.2 based software supports the Cisco Nexus 4001I and 4005I Switch Module for IBM BladeCenter including certain features that are specific to the product. The Cisco NX-OS software also interoperates with any networking operating system that conforms to the IEEE and RFC compliance standards.

The switch is a 10/1-Gb Ethernet switch for the IBM BladeCenter chassis. The switch offers a solution in high-end data centers where server virtualization and I/O consolidation are required.

This section includes the following topics:

Common Software Throughout the Data Center

Modular Software Design

Common Software Throughout the Data Center

The Cisco NX-OS software provides a unified operating system that is designed to run all areas of the data center network including the LAN and Layer 4 through Layer 7 network services.

Modular Software Design

The Cisco NX-OS software supports distributed multithreaded processing on symmetric multiprocessors (SMPs), multi-core CPUs, and distributed data module processors. The Cisco NX-OS software offloads computationally intensive tasks, such as hardware table programming, to dedicated processors distributed across the data modules. The modular processes are created on demand, each in a separate protected memory space. Processes are started and system resources are allocated only when you enable a feature. A real-time preemptive scheduler helps to ensure the timely processing of critical functions.

Serviceability

The Cisco NX-OS software has serviceability functions that allow the device to respond to network trends and events. These features help you with network planning and improving response times.

This section includes the following topics:

Switched Port Analyzer

Ethanalyzer

Call Home

Online Diagnostics

Switched Port Analyzer

The Switched Port Analyzer (SPAN) feature allows you to analyze all traffic between ports (called the SPAN source ports) by nonintrusively directing the SPAN session traffic to a SPAN destination port that has an external analyzer attached to it. For more information about SPAN, see Chapter 34 "Configuring SPAN."

Ethanalyzer

Ethanalyzer is a Cisco NX-OS protocol analyzer tool based on the Wireshark (formerly Ethereal) open source code. Ethanalyzer is a command-line version of Wireshark for capturing and decoding packets. You can use Ethanalyzer to troubleshoot your network and analyze the control-plane traffic. For more information about Ethanalyzer, see Chapter 35 "Troubleshooting."

Call Home

The Call Home feature continuously monitors hardware and software components to provide e-mail-based notification of critical system events. A versatile range of message formats is available for optimal compatibility with pager services, standard e-mail, and XML-based automated parsing applications. It offers alert grouping capabilities and customizable destination profiles.You can use this feature, for example, to directly page a network support engineer, send an e-mail message to a network operations center (NOC), and employ Cisco AutoNotify services to directly generate a case with the Cisco Technical Assistance Center (TAC). For more information about Call Home, see Chapter 25 "Configuring Call Home."

Online Diagnostics

The Online Health Management System (OHMS) is a hardware fault detection and recovery feature. It ensures the general health of the switch. For more information about OHMS, see Chapter 24 "Configuring Online Diagnostics."

Manageability

This section includes the following topics:

Simple Network Management Protocol

Role-Based Access Control

Cisco NX-OS Device Configuration Methods

Simple Network Management Protocol

The Cisco NX-OS software is compliant with Simple Network Management Protocol (SNMP) version 1, version 2, and version 3. A large number of MIBs is supported. For more information about SNMP, see the chapters related to System Management.

Role-Based Access Control

With role-based access control (RBAC), you can limit access to device operations by assigning roles to users. You can customize access and restrict it to the users who require it. For more information about RBAC, see the chapters related to Switch Security Features.

Cisco NX-OS Device Configuration Methods

You can configure devices using the CLI from a Secure Shell (SSH) session or a Telnet session. SSH provides a secure connection to the switch. For more information on SSH and Talent, see the the chapters related to Switch Security Features.

You can also configure devices using the XML management interface, which is a programmatic method based on the NETCONF protocol that complements the CLI.

Traffic Routing, Forwarding, and Management

This section includes the following topics:

Ethernet Switching

IP Multicast

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)

IEEE 802.1Q VLANs and trunks

512-subscriber VLANs

IEEE 802.3ad link aggregation

Private VLANs

Unidirectional Link Detection (UDLD) in aggressive and standard modes

IP Multicast

The Cisco NX-OS includes the following multicast protocols and functions:

Internet Group Management Protocol (IGMP) Versions 1, 2, and 3 router role

IGMPv2 host mode

IGMP snooping

FCoE Initialization Protocol

The Cisco NX-OS supports the FIP snooping bridge feature. The switch operates as a loss-less Ethernet bridge transparently forwarding FCoE packets.

Quality of Service

The Cisco NX-OS Quality of Service (QoS) support allows you to classify the network traffic, police and prioritize the traffic flow, and provide congestion avoidance. For more information, see Chapter 30 "Configuring Quality of Service."

Network Security Features

Cisco NX-OS includes the following security features:

Authentication, authorization, and accounting (AAA)

RADIUS and TACACS+

SSH Protocol Version 2

SNMPv3

Policies based on MAC and IPv4 addresses supported by named ACLs (port-based ACLs [PACLs], VLAN-based ACLs [VACLs])

Traffic storm control (unicast, multicast, and broadcast)

For more information, see the chapters related to Switch Security Features.

Typical Deployment Topology

The switch is typically deployed in a topology that is shown in Figure 1-1:

Figure 1-1 Typical Deployment Topology

Supported Standards

Table 1-1 lists the IEEE standards supported by the switch.

Table 1-1 IEEE Compliance 

Standard
Description

802.1D

MAC Bridges

802.1s

Multiple Spanning Tree Protocol

802.1w

Rapid Spanning Tree Protocol

802.3ad

Link aggregation with LACP

802.3ab

1000BaseT (10/100/1000 Ethernet over copper)

802.3ae

10-Gigabit Ethernet

802.1Q

VLAN Tagging

802.1p

Class of service Tagging for Ethernet frames

802.1x

Port-based network access control