Dell S5000 FTOS 9.0(1.3) Configuration Guide for the Switch - Page 629
NPIV Proxy Gateway: Protocol Services, NPIV Proxy Gateway Functionality
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Using an FCoE map applied to downstream (server-facing) Ethernet ports and upstream (fabric-facing) FC ports, you can configure the association between a SAN fabric and the FCoE VLAN that connects servers over the NPIV proxy gateway to FC switches in the fabric. An FCoE map virtualizes the upstream SAN fabric as an FCF to downstream CNA ports on FCoE-enabled servers as follows: • As soon as an FC N port comes online (no shutdown command), the NPG starts sending FIP multicast advertisements, which contain the fabric name derived from the 64-bit worldwide name (WWN) of the principal SAN switch. (The principal switch in a fabric is the FC switch with the lowest domain ID.) • When you apply the FCoE map to a server-facing Ethernet port in ENode mode, ACLs are automatically configured to allow only FCoE traffic from servers that perform a successful FLOGI on the FC switch. All other traffic on the VLAN is denied. You can specify one or more upstream N ports in an FCoE map. The FCoE map also contains the VLAN ID of the dedicated VLAN used to transmit FCoE traffic between the SAN fabric and servers. NPIV Proxy Gateway: Protocol Services An S5000 NPG provides the following protocol services: • Fibre Channel service to create N ports and log in to an upstream FC switch. • FCOE service to perform: • Virtualization of FC N ports on an NPG so that they appear as FCOE FCFs to downstream servers. • NPIV service to perform the association and aggregation of FCoE servers to upstream F ports on core switches (through N ports on the NPG). Conversion of server FLOGIs and FDISCs, which are received over S5000 ENode ports, are converted into FDISCs addressed to the upstream F ports on core switches. NPIV Proxy Gateway Functionality An S5000 NPG provides the following functionality in a storage area network: • FIP Snooping bridge that provides security for FCoE traffic using ACLs (see FCoE Transit chapter). • FCoE gateway that provides FCoE-to-FC bridging. N-port virtualization using FCoE maps exposes upstream F ports as FCF ports to downstream server-facing ENode ports on the NPG (see FCoE Maps). NPIV Proxy Gateway | 629
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