Reference Guide

FCoE Transit | 349
Figure 16-1. FIP discovery and login between an ENode and an FCF
FIP Snooping on Ethernet Bridges
In a converged Ethernet network, intermediate Ethernet bridges can snoop on FIP packets during the login
process on an FCF. Then, using ACLs, a transit bridge can permit only authorized FCoE traffic to be
transmitted between an FCoE end-device and an FCF. An Ethernet bridge that provides these FCoE transit
functions is called a FIP snooping bridge (FSB).
On a FIP snooping bridge, ACLs are created dynamically as FIP login frames are processed. The ACLs are
installed on switch ports configured for any of the following port modes:
• ENode mode for server-facing ports
• FCF mode for a trusted port directly connected to an FCF
You must enable FCoE transit on the S5000, configure the FIP snooping parameters, and configure CAM
allocation for FCoE. When you enable FCoE transit, all ports on the switch by default become ENode
ports.
Note: When you enable FCoE transit on an S5000, the switch functions as a FIP snooping bridge.