Using pin groups

In End Host Mode, Fabric Interconnect does not work as a traditional layer 2 switch. In this mode, UCS Fabric Interconnect is presented to the northbound LAN switch as an end host with many adapters. Traffic from individual server's vNICs is mapped to a specific Fabric Interconnect uplink port or port channel. This mapping of Ethernet traffic is known as LAN pin groups.

Pin groups can be configured as a static or dynamic pin group. The default configuration is dynamic pin groups.

Dynamic pin groups

This is the default pin group setting. In dynamic pinning, Fabric Interconnect automatically binds server vNICs to uplink FI ports. The mapping of server vNICs to uplink FI ports depends upon the total number of active uplinks configured, which could be either 1, 2, 4, or 8 (for older 6100 series FIs, uplinks could only be 1, 2, and 4).

Failure response

Both Fabric Interconnects are in Active/Active mode with respect to Ethernet data traffic movement. Each server is pinned to a single...