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General| Switching Capacity | 176 Gbps |
|---|---|
| Jumbo Frame Support | 9216 bytes |
| Cooling | Front-to-back airflow |
| Operating Temperature | 32 to 104°F (0 to 40°C) |
| Form Factor | Rack-mountable |
| Input Voltage | 100 to 240 VAC |
| Height | 1 RU |
| Uplink Ports | 4 x 10 Gigabit Ethernet |
| MAC Address Table Size | 32000 entries |
| Power Supply | Optional redundant |
| Dimensions | 1.72 x 17.3 inches |
| Weight | 16.5 lb (7.5 kg) |
| Operating Humidity | 5 to 95% (noncondensing) |
| Product Type | Extender module |
| Ports | 48 x 10/100/1000 |
Introduces the Cisco Nexus 2000 Series Fabric Extender (FEX), its scalability, and integration with parent switches.
Defines key terms such as fabric interface, port channel fabric interface, host interface, and port channel host interface.
Explains FEX fabric interface features, including SFP+ validation, local checks, and configuration in fex-fabric mode.
Covers Layer 3 and Layer 2 host interfaces, default modes, subinterfaces, and port profiles.
Details host interface port channel configurations, including Layer 3 and Layer 2 modes, member limits, and subinterfaces.
Describes FEX support for Layer 2 VLAN trunks and IEEE 802.1Q VLAN encapsulation, noting PVLANs are not supported.
Explains how Cisco NX-OS offloads link-level protocol processing to the Fabric Extender CPU, listing supported protocols.
Details FEX use of IEEE 802.1p CoS values, per-port QoS, and support for pause frames via IEEE 802.3x flow control.
States that Fabric Extenders support the full range of ingress access control lists (ACLs) available on the parent Cisco Nexus device.
Covers IGMP snooping support on host interfaces, including IGMPv2 and IGMPv3 snooping based on destination MAC address.
Explains configuring host interfaces as SPAN source ports, limitations on destination ports, and supported monitoring types.
Defines oversubscription in switching, its purpose for port usage optimization, and lists FEX oversubscription configurations.
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 port numbering convention for Fabric Extenders: interface ethernet chassis/slot/port.
Describes how FEX software is bundled with the parent switch image and automatically verified/updated during association.
States that the Cisco Nexus 2000 Series Fabric Extender requires no license; features are bundled with the NX-OS system images.
Lists configuration guidelines and limitations, including default port modes, VDC requirements, and unsupported features like PVLANs.
Presents a table listing default settings for Fabric Extender parameters, such as feature-set fex command and port mode.
