The following figures show examples of Cisco Nexus Adapter-FEX topologies with server network adapters.
Figure 1. Cisco Nexus Adapter-FEX Topologies
Figure 2. Cisco Nexus Adapter-FEX Dual-Homed Topology
The following figures show topologies that are supported for server network adapters that support active-standby teaming of uplinks.
The active-standby topologies shown here have one uplink as active and the other uplink as standby. With some server network adapters, you can select the active and standby uplinks per vNIC. In this case, each uplink is an active uplink for a specific vNIC and becomes a standby for the remaining uplinks.
Selecting the active and standby uplinks per vNIC is a best practice.
The Cisco UCS P81E and Cisco UCS VIC1225 Virtual Interface Cards support active-standby uplink teaming. These Virtual Interface Cards allow each virtual NIC (vNIC) to choose the active uplink. The other uplink is configured as a standby uplink.
See the Cisco UCS Virtual Interface Card documentation in the Cisco UCS C-Series Servers Integrated Management Controller CLI Configuration Guide for details.
Figure 3. Cisco Nexus Adapter-FEX Active-Standby Topology
Figure 4. Cisco Nexus Adapter-FEX Dual-Homed Active-Standby Topology