Cisco Nexus 5000 Series Switch Fabric Manager Software Configuration Guide, NX-OS 4.0 (OL-16598-01, June 2008)

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Nexus 5000 Series Switch Fabric Manager Software Configuration Guide
OL-16598-01
Chapter 1 Product Overview
Nexus 5000 Series Switch Software
Ethernet Interfaces
The Nexus 5020 switch has 40 fixed 10-Gigabit Ethernet ports equipped with SFP+ interface adapters.
Up to 12 additional 10-Gigabit Ethernet ports are available on the expansion modules.
All of the 10-Gigabit Ethernet ports support FCoE. Each port can be used as a downlink (connected to a
server) or as an uplink (to the data center LAN).
Fibre Channel Interfaces
Fibre Channel ports are optional on the Nexus 5020 switch. Up to eight Fibre Channel ports are available
when using expansion modules.
Each Fibre Channel port can be used as a downlink (connected to a server) or as an uplink (to the data
center SAN fabric).
Management Interfaces
The Nexus 5020 switch has two dedicated management interfaces (one serial console port and one
10/100/1000 Ethernet interface).
Nexus 5000 Series Switch Software
The Nexus 5000 Series switch is a Layer 2 device, which runs the Cisco Nexus operating system
(NX-OS). The Nexus 5000 Series switch software is described in the following topics:
• Ethernet Switching, page 1-4
• FCoE and Fibre Channel Switching, page 1-5
• Licensing, page 1-5
• QoS, page 1-5
• Serviceability, page 1-5
• Switch Management, page 1-6
• Network Security Features, page 1-7
• Virtual Device Contexts, page 1-8
Ethernet Switching
Nexus 5000 Series switches are designed to support high-density, high-performance Ethernet systems
and provide 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
• IEEE 802.3ad link aggregation
• Private VLANs
• Traffic suppression (unicast, multicast, and broadcast)