Reference Guide

FCoE Transit | 355
FIP Snooping Restrictions
The following restrictions apply when you configure FIP snooping:
• The maximum number of FCoE VLANs supported:
• on an S5000 NPIV proxy gateway is 12.
• on an S5000 switch not configured as an NPIV proxy gateway is 8.
• The maximum number of FCFs supported on a FIP snooping-enabled VLAN:
• on an S5000 NPIV proxy gateway is 12.
• on an S5000 switch not configured as an NPIV proxy gateway is 12.
• The maximum number of FIP snooping sessions (including NPIV sessions) supported per ENode
server is 64 and is user-configurable.
In a full FCoE NPIV configuration, 64 sessions (one FLOGI + 63 NPIV sessions) are supported per
ENode server.
• Links to other FIP snooping bridges on a FIP snooping-enabled port (bridge-to-bridge links) are not
supported on the S5000 switch.
• The DCBx version that you configure on an interface (see DCBx Configuration Procedure) determines
the server CNA traffic that is supported by FIP snooping on the interface:
• CEE-DCBX supports T11-compliant Gen-2 CNAs.
• CIN-DCBX supports Gen-1 CNAs.
• IEEE 802.1Qaz (Draft 2.5) supports Gen-2 CNAs.
You can also configure an interface to operate using the DCBx version received from a peer
(auto-configure option). In this case, the S5000 detects the capabilities of a CNA and auto-configures
the interface to the correct DCBx mode.