Dell S4048T, Configuration Manual

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FIP Snooping
The Fibre Channel over Ethernet (FCoE) Transit feature is supported on Ethernet interfaces. When you enable
the switch for FCoE transit, the switch functions as a FIP snooping bridge.
NOTE: FIP snooping is not supported on Fibre Channel interfaces or in a switch stack.
Topics:
• Fibre Channel over Ethernet
• Ensure Robustness in a Converged Ethernet Network
• FIP Snooping on Ethernet Bridges
• FIP Snooping in a Switch Stack
• Using FIP Snooping
• Displaying FIP Snooping Information
• FCoE Transit Configuration Example
Fibre Channel over Ethernet
FCoE provides a converged Ethernet network that allows the combination of storage-area network (SAN) and
LAN traffic on a Layer 2 link by encapsulating Fibre Channel data into Ethernet frames.
FCoE works with the Ethernet enhancements provided in data center bridging (DCB) to support lossless (no-
drop) SAN and LAN traffic. In addition, DCB provides flexible bandwidth sharing for different traffic types, such
as LAN and SAN, according to 802.1p priority classes of service. DCBx should be enabled on the system
before the FIP snooping feature is enabled. For more information, refer to the
Data Center Bridging (DCB)
chapter.
Ensure Robustness in a Converged
Ethernet Network
Fibre Channel networks used for SAN traffic employ switches that operate as trusted devices. To
communicate with other end devices attached to the Fibre Channel network, end devices log into the switch
to which they are attached.
Because Fibre Channel links are point-to-point, a Fibre Channel switch controls all storage traffic that an end
device sends and receives over the network. As a result, the switch can enforce zoning configurations, ensure
that end devices use their assigned addresses, and secure the network from unauthorized access and denial-
of-service (DoS) attacks.
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