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General| Form Factor | 1RU |
|---|---|
| Switching Capacity | 1.28 Tbps |
| Forwarding Rate | 960 Mpps |
| Jumbo Frame Support | Up to 9216 bytes |
| Operating Temperature | 32 to 104°F (0 to 40°C) |
| Storage Temperature | -40 to 158°F (-40 to 70°C) |
| Ports | 32 |
| Fabric Extender Ports | 8 x 10 Gigabit Ethernet (SFP+) |
| Power Supply | Dual redundant power supplies |
| Management | Cisco NX-OS |
| Dimensions (H x W x D) | 1.72 x 17.35 x 22.5 in (4.4 x 44.1 x 57.2 cm) |
| MAC Address Table Size | 128, 000 entries |
| Relative Humidity | 5 to 95% (noncondensing) |
Provides an architectural overview and key features of the Cisco Nexus 2000 Series Fabric Extender, also known as FEX.
Defines essential terms used in the document, such as fabric interface, host interface, and port channel fabric interface.
Explains the features and validation process for FEX fabric interfaces, including SFP+ validation and link checks.
Covers Layer 3 and Layer 2 host interfaces, their default modes, and configuration guidelines for connecting end devices.
Details configurations for host interface port channels, including Layer 3 and Layer 2 modes, and member limits.
Explains the support for Layer 2 VLAN trunks and IEEE 802.1Q VLAN encapsulation, noting limitations like no private VLANs.
Describes how Cisco NX-OS offloads link-level protocol processing to the Fabric Extender CPU, listing supported protocols like LLDP and LACP.
Explains QoS implementation using 802.1p CoS values and per-port QoS configuration on host interfaces, including flow control.
Details the support for ingress access control lists (ACLs) on Fabric Extender host interfaces, mirroring parent switch capabilities.
Covers IGMP snooping support on host interfaces, including IGMPv2/v3 and destination MAC address-based snooping.
Explains how to configure host interfaces as SPAN source ports, noting limitations on destination ports and session support.
Explains oversubscription in switching, its benefits, and provides examples of oversubscription ratios for different FEX models.
Describes the zero-touch configuration model where the parent switch manages the Fabric Extender via fabric interfaces.
Explains that FEX does not perform local switching; all traffic is sent to the parent switch for forwarding and policy enforcement.
Details configuring port channel fabric interface connections for load balancing between host interfaces and the parent switch.
Explains the 'interface ethernet chassis/slot/port' numbering convention used for Fabric Extenders and chassis ID ranges.
Covers how FEX software is bundled with the parent switch image and updated during the association process.
Outlines the licensing requirements for the Cisco Nexus 2000 Series Fabric Extender, stating no separate license is needed.
Lists configuration guidelines and limitations for Fabric Extenders, including default port modes and feature support.
Details the default parameter settings for the Fabric Extender, such as the 'feature-set fex' command and port mode.
