Configuring the Fabric Extender
• The Fabric Extender is connected dual homed to two upstream parent switches and connected downstream
Port channels between two Fabric Extenders connected to the same Cisco Nexus device is not supported
Note
vPCs cannot span two different Fabric Extenders that are connected to the same physical Cisco Nexus
device.
Fibre Channel over Ethernet Support
The Cisco Nexus 2232PP supports Fibre Channel over Ethernet (FCoE) with the following restrictions:
• Only FCoE Initialization Protocol (FIP) enabled converged network adapters (CNAs) are supported on
• Binding to a port channel is limited to only one member in the port channel.
For configuration details, see the Fibre Channel over Ethernet Configuration Guide for the Nexus software
release that you are using. The available versions of this document can be found at the following URL:
/www.cisco.com/en/US/products/ps9670/products_installation_and_configuration_guides_list.html.
Protocol Offload
To reduce the load on the control plane of the Cisco Nexus Series device, Cisco NX-OS allows you to offload
link-level protocol processing to the Fabric Extender CPU. The following protocols are supported:
• Link Layer Discovery Protocol (LLDP)
• Cisco Discovery Protocol (CDP)
• Link Aggregation Control Protocol (LACP)
OL-25842-01
to single homed servers (see the following figure).
Figure 29: Dual Homed Fabric Extender vPC Topology
This configuration is also called an Active-Active topology.
the Fabric Extender.
Cisco Nexus 5000 Series NX-OS Layer 2 Switching Configuration Guide, Release 5.1(3)N1(1)
Fibre Channel over Ethernet Support
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