Cisco Nexus 5000 Series and Cisco Nexus 2000 Series Release Notes, for Cisco NX-OS Release 5.0(2)N1(1) and NX-OS Release 5.0(2)N2(1) OL-22747-02, December 2010)

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Cisco Nexus 5000 Series and Cisco Nexus 2000 Series Release Notes, for Cisco NX-OS Release 5.0(2)N1(1) and NX-OS Release 5.0(2)N2(1)
OL-22747-02
Introduction
The Fabric Extender integrates with its parent switch, allowing zero-touch provisioning as well as
automatic configuration. This integration allows large numbers of servers and hosts to be supported
using the same feature set as the parent Cisco Nexus 5000 Series switch, including security and quality
of service (QoS) configuration parameters, with a single point of management as shown in Figure 1.
Spanning Tree Protocol (STP) is not required between the Fabric Extender and its parent switch, because
the Fabric Extender and its parent switch allow you to enable a large multi-path, loop-free, active-active
topology.
Because the Fabric Extender can connect to servers directly, by default, all Fabric Extender host ports
are edge ports. In addition, BPDU guard and BPDU filters are also enabled on Fabric Extender host ports
by default.
Figure 1 Single Management Domain
This section describes the 2148T Fabric Extender. It includes the following topics:
• Cisco Nexus 2148T Fabric Extender, page 5
• Cisco Nexus 2248TP Fabric Extender, page 6
• Cisco Nexus 2232PP Fabric Extender, page 6
• Cisco Nexus 2224TP Fabric Extender, page 6
Cisco Nexus 2148T Fabric Extender
The first product in the Cisco Nexus 2000 Series is the Cisco Nexus 2148T Fabric Extender, a 1 RU
chassis designed for rack mounting. The chassis supports redundant hot-swappable fans and power
supplies.
Single
Management
Domain
FabricExtenders
Distribution
Layer
Access
Layer
Distribution Layer
Switch
Parent
Switch
Fabric Interfaces
Fabric Interfaces
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Hosts
Host Interfaces