Cisco Nexus 3048 User Manual

Data Sheet

Cisco Nexus 3048 Switch

Product Overview

The Cisco Nexus® 3048 Switch (Figure 1) is a line-rate Gigabit Ethernet top-of-rack (ToR) switch and is part of the Cisco Nexus 3000 Series Switches portfolio. The Cisco Nexus 3048, with its compact one-rack-unit (1RU) form factor and integrated Layer 2 and 3 switching, complements the existing Cisco Nexus family of switches. This switch runs the industry-leading Cisco® NX-OS Software operating system, providing customers with robust features and functions that are deployed in thousands of data centers worldwide. The Cisco Nexus 3048 is ideal for big data customers that require a Gigabit Ethernet ToR switch with local switching that connects transparently to upstream Cisco Nexus switches, providing an end-to-end Cisco Nexus fabric in their data centers. This switch supports both forward and reversed airflow schemes with AC and DC power inputs.

Figure 1. Cisco Nexus 3048 Switch

Main Benefits

The Cisco Nexus 3048 provides the following main benefits:

●

Wire-rate Layer 2 and 3 switching

◦ Layer 2 and 3 switching of up to 176 Gigabit per second (Gbps) and more than 132 million packets per

second (mpps) in a compact 1RU form-factor switch

●

Robust and purpose-built Cisco NX-OS operating system for end-to-end Cisco Nexus fabric

◦ Transparent integration with the Cisco Nexus family of switches to provide a consistent end-to-end Cisco

Nexus fabric

◦ Modular operating system built for resiliency ◦ Integration with Cisco Data Center Network Manager (DCNM) and XML management tools

●

Comprehensive feature set and innovations for next-generation data centers

◦ Virtual PortChannel (vPC) provides Layer 2 multipathing through the elimination of Spanning Tree

Protocol and enables fully utilized bisectional bandwidth and simplified Layer 2 logical topologies without the need to change the existing management and deployment models.

◦ Power On Auto Provisioning (POAP) enables touchless bootup and configuration of the switch, drastically

reducing provisioning time.

◦ Cisco Embedded Event Manager (EEM) and Python scripting enable automation and remote operations

in the data center.

Part Number

Description

SFP-10G-SR

10GBASE-SR SFP+ module (multimode fiber [MMF])

SFP-10G-SR-S

Cisco 10GBASE-SR SFP+ Module for MMF

SFP-10G-LR

10GBASE-LR SFP+ module (single-mode fiber [SMF])

◦ Advanced buffer monitoring reports real-time buffer utilization per port and per queue, which allows

organizations to monitor traffic bursts and application traffic patterns.

◦ The 64-way equal-cost multipath (ECMP) routing enables Layer 3 fat tree designs and allows

organizations to prevent network bottlenecks, increase resiliency, and add capacity with little network disruption.

◦ EtherAnalyzer is a built-in packet analyzer for monitoring and troubleshooting control-plane traffic and is

based on the popular Wireshark open source network protocol analyzer.

◦ Precision Time Protocol (PTP; IEEE 1588) provides accurate clock synchronization and improved data

correlation with network captures and system events.

◦ Full Layer 3 unicast and multicast routing protocol suites are supported, including Border Gateway

Protocol (BGP), Open Shortest Path First (OSPF), Enhanced Interior Gateway Routing Protocol (EIGRP), Routing Information Protocol Version 2 (RIPv2), Protocol Independent Multicast sparse mode (PIM-SM), Source-Specific Multicast (SSM), and Multicast Source Discovery Protocol (MSDP).

●

Network traffic monitoring with Cisco Nexus Data Broker

◦ Build simple, scalable and cost-effective network tap or Cisco Switched Port Analyzer (SPAN)

aggregation for network traffic monitoring and analysis.

Configuration

●

48 fixed 10/100/1000-Mbps Ethernet ports

●

4 fixed Enhanced Small Form-Factor Pluggable (SFP+) ports

●

Locator LED

●

Dual redundant power supplies

●

Fan tray with redundant fans

●

Two 10/100/1000-Mbps management ports*

●

One RS-232 serial console port

●

One USB port

●

Locator LED and button

Support for both forward (port-side exhaust) and reversed (port-side intake) airflow schemes is available.

Transceiver and Cabling Options

For uplink connectivity, the Cisco Nexus 3048 supports SFP+ direct-attach 10 Gigabit Ethernet copper, an innovative solution that integrates transceivers with Twinax cables into an energy-efficient and low-cost solution. For longer cable runs, multimode and single-mode optical SFP+ transceivers are supported. Table 1 lists the supported 10 Gigabit Ethernet transceiver options.

Table 1. Cisco Nexus 3048 10 Gigabit Transceiver Support Matrix1

Only one Management port is enabled and active with no plan to enable both.

Part Number

Description

SFP-10G-LRM

Cisco 10GBASE-LRM SFP+ Module for MMF and SMF

SFP-10G-ZR

Cisco multirate 10GBASE-ZR, 10GBASE-ZW and OTU2e SFP+ Module for SMF

SFP+ DWDM

Cisco 10GBASE DWDM SFP+, Type 40

SFP-H10GB-CU1M

10GBASE-CU SFP+ cable 1m (Twinax cable)

SFP-H10GB-CU3M

10GBASE-CU SFP+ cable 3m (Twinax cable)

SFP-H10GB-CU5M

10GBASE-CU SFP+ cable 5m (Twinax cable)

SFP-H10GB-ACU7M

10GBASE-CU SFP+ Cable 7 Meter, active

SFP-H10GB-ACU10M

10GBASE-CU SFP+ Cable 10 Meter, active

SFP-10G-AOC1M-10M

10GBASE-AOC SFP+ Cable 1 Meter – 10 Meter

Feature

Benefit

Common software throughout the data center: Cisco NX-OS runs on all Cisco data center switch platforms: Cisco Nexus 7000, 5000, 4000, 3000, 2000, and 1000V Series.

● Simplification of data center operating environment

● End-to-end Cisco Nexus and Cisco NX-OS fabric

● No retraining necessary for data center

engineering and operations teams

Software compatibility: Cisco NX-OS interoperates with Cisco products running any variant of Cisco IOS Software and also with any networking OS that conforms to the networking standards listed as supported in this data sheet.

● Transparent operation with existing network infrastructure

● Open standards

● No compatibility concerns

Modular software design: Cisco NX-OS is designed to support distributed multithreaded processing. Cisco NX-OS modular processes are instantiated on demand, each in a separate protected memory space. Thus, processes are started and system resources allocated only when a feature is enabled. The modular processes are governed by a real-time preemptive scheduler that helps ensure timely processing of critical functions.

● Robust software

● Fault tolerance

● Increased scalability

● Increased network availability

Troubleshooting and diagnostics: Cisco NX-OS is built with unique serviceability functions to enable network operators to take early action based on network trends and events, enhancing network planning and improving network operations center (NOC) and vendor response times. Cisco Smart Call Home and Cisco Online Health Management System (OHMS) are some of the features that enhance the serviceability of Cisco NX-OS.

● Quick problem isolation and resolution

● Continuous system monitoring and proactive

notifications

● Improved productivity of operations teams

For more information about the transceiver types, see

http://www.cisco.com/en/US/products/hw/modules/ps5455/prod_module_series_home.html.

Cisco NX-OS Software Overview

Cisco NX-OS is a data center-class operating system built with modularity, resiliency, and serviceability at its foundation. Cisco NX-OS helps ensure continuous availability and sets the standard for mission-critical data center environments. The self-healing and highly modular design of Cisco NX-OS makes zero-impact operations a reality and enables exceptional operation flexibility.

Focused on the requirements of the data center, Cisco NX-OS provides a robust and comprehensive feature set that meets the networking requirements of present and future data centers. With an XML interface and a command-line interface (CLI) like that of Cisco IOS® Software, Cisco NX-OS provides state-of-the-art implementations of relevant networking standards as well as a variety of true data center-class Cisco innovations.

Cisco NX-OS Software Benefits

Table 2 summarizes the benefits that Cisco NX-OS offers.

Table 2. Benefits of Cisco NX-OS Software

Feature

Benefit

Ease of management: Cisco NX-OS provides a programmatic XML interface based on the NETCONF industry standard. The Cisco NX-OS XML interface provides a consistent API for devices. Cisco NX-OS also supports Simple Network Management Protocol (SNMP) Versions 1, 2, and 3 MIBs.

● Rapid development and creation of tools for enhanced management

● Comprehensive SNMP MIB support for efficient remote monitoring

Using the Cisco Nexus Data Broker software and Cisco Plug-in for OpenFlow agent, the Cisco Nexus 3048 Switch can be used to build a scalable, cost-effective, and programmable tap or SPAN aggregation infrastructure. This approach replaces the traditional purpose-built matrix switches with these switches. You can interconnect these switches to build a multilayer topology for tap or SPAN aggregation infrastructure.

● Scalable and cost effective

● Robust traffic filtering capabilities

● Traffic aggregation from multiple input ports

across different switches

● Traffic replication and forwarding to multiple monitoring tools

Role-based access control (RBAC): With RBAC, Cisco NX-OS enables administrators to limit access to switch operations by assigning roles to users. Administrators can customize access and restrict it to the users who require it.

● Tight access control mechanism based on user roles

● Improved network device security

● Reduction in network problems arising from

human errors

System default (no license required)

● Comprehensive Layer 2 feature set: VLAN, IEEE 802.1Q Trunking, vPC, Link Aggregation Control Protocol (LACP), Unidirectional Link Detection (UDLD; standard and aggressive), Multiple Spanning Tree Protocol (MSTP), Rapid Spanning Tree Protocol (RSTP), Spanning Tree Protocol guards, and Transparent VLAN Trunk Protocol (VTP)

● Security: Authentication, authorization, and accounting (AAA); Dynamic Host Configuration Protocol (DHCP) snooping; storm control; configurable Control-Plane Policing (CoPP); and private VLAN (PVLAN)

● Management features: Cisco DCNM support, console, Secure Shell Version 2 (SSHv2) access, Cisco Discovery Protocol, SNMP, and syslog

Base license (N3K-C3048-BAS1K9)

● Layer 3 IP routing: Inter-VLAN routing (IVR), static routes, RIPv2, access control list (ACLs), OSPFv2 (limited to 256 routes), EIGRP stub, Hot Standby Router Protocol (HSRP), Virtual Router Redundancy Protocol (VRRP), and Unicast Reverse-Path Forwarding (uRPF)

● Multicast: PIM-SM, SSM, and MSDP

LAN Enterprise license (N3K-C3048-LAN1K9)*

● Advanced Layer 3 IP routing: OSPFv2, EIGRP, BGP, and Virtual Route Forwarding lite (VRF-lite)

Cisco Nexus Data Broker license (NDB-FX-SWT-K9)

● License for using the tap and SPAN aggregation functions with Cisco Nexus Data Broker; only the Base license is needed for this feature

Cisco NX-OS Software Packages for Cisco Nexus 3048

The Cisco NX-OS Software package for the Cisco Nexus 3048 offers flexibility and a comprehensive feature set along with consistency with Cisco Nexus access switches. The default system software has a comprehensive Layer 2 feature set with extensive security and management features. To enable Layer 3 IP unicast and multicast routing functions, additional licenses need to be installed. Table 3 lists the software licensing details.

Table 3. Cisco NX-OS Software Package in the Cisco Nexus 3048

The Base license (N3K-C3048-BAS1K9) is required to take advantage of LAN Enterprise license (N3K-C3048-LAN1K9)

features. Table 5 later in this document provides a complete feature list.

Cisco Data Center Network Manager

The Cisco Nexus 3048 is supported in Cisco DCNM. Cisco DCNM is designed for hardware platforms enabled for Cisco NX-OS, which consist of the Cisco Nexus Family of products. Cisco DCNM is a Cisco management solution that increases overall data center infrastructure uptime and reliability, hence improving business continuity. Focused on the management requirements of the data center network, Cisco DCNM provides a robust framework and comprehensive feature set that meets the routing, switching, and storage administration needs of present and future data centers. In particular, Cisco DCNM automates the provisioning process, proactively monitors the LAN by detecting performance degradation, secures the network, and streamlines the diagnosis of dysfunctional network elements.

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Cisco Nexus 3048 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual