Dell S4820T Configuration Manual page 361

• Allow transit Ethernet bridges to efficiently monitor FIP frames passing between FCoE end-devices
and an FCF. To dynamically configure ACLs on the bridge to only permit traffic authorized by the FCF,
use the FIP snooping data.
FIP enables FCoE devices to discover one another, initialize and maintain virtual links over an Ethernet
network, and access storage devices in a storage area network (SAN). FIP satisfies the Fibre Channel
requirement for point-to-point connections by creating a unique virtual link for each connection
between an FCoE end-device and an FCF via a transit switch.
FIP provides functionality for discovering and logging into an FCF. After discovering and logging in, FIP
allows FCoE traffic to be sent and received between FCoE end-devices (ENodes) and the FCF. FIP uses its
own EtherType and frame format. The following illustration shows the communication that occurs
between an ENode server and an FCoE switch (FCF).
The following table lists the FIP functions.
Table 22. FIP Functions
FIP Function
FIP VLAN discovery
FIP discovery
Initialization
Maintenance
Logout
FCoE Transit
Description
FCoE devices (ENodes) discover the FCoE VLANs
on which to transmit and receive FIP and FCoE
traffic.
FCoE end-devices and FCFs are automatically
discovered.
FCoE devices learn ENodes from the FLOGI and
FDISC to allow immediate login and create a virtual
link with an FCoE switch.
A valid virtual link between an FCoE device and an
FCoE switch is maintained and the LOGO
functions properly.
On receiving a FLOGI packet, FSB deletes all
existing sessions from the ENode to the FCF.
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