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6 Dell EMC OS10 FCoE with Redundant Links Configuration Cheat Sheet | 1.0
2 Setup
Figure1 shows the reference setup used in the lab to demonstrate the FCoE port pinning over redundant
Ethernet links.
Starting from the end host, two LAGs or port-channels have been created. Each LAG has two links from the
end host (R720 server). LAG_1 connects to S4148U-02, and LAG_2 connects to S4148U-03.
At the top of rack (ToR), two S4148Us are deployed as a VLT domain creating a virtual switch, and thus
providing the necessary link and device redundancy for both downstream and upstream connections. It is on
the ToR switches where the dedicated or port-pinning configuration takes place. The ToRs are also acting as
FSBs (FIP Snooping Bridge) whose functionality is:
 To act as a bridge between FCoE capable end-hosts and the Fibre-Channel switch.
 It monitors the connections between the end-hosts and configures reserved access lists to permit
point-to-point traffic between end-hosts and target.
Three port-channels are configured on the ToRs switches, Po10 and Po20 are the downstream host
connections and Po30 is the upstream FC (Fibre-Channel) switch connection where port-pinning is
configured.
With port-pinning, a point-to-point link from host to target is established while providing redundant dedicated
links from the ToRs switches. The redundant links at the ToRs are Ethernet links not Fibre-Channel links.
The final setup layer is the FC switch (S4148U-04) providing connection to the FC SAN targets as well as a
simulated Ethernet or LAN environment. There are two SAN fabrics available providing storage redundancy.
FoCE port-pinned over VLT deployment diagram