Reference Guide

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 eight.
• 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 determines the server CNA traffic that FIP
snooping supports 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 (the auto-
configure
option). In this case, the S5000 switch detects the capabilities of a CNA and auto-configures
the interface to the correct DCBx mode.
Configuring FIP Snooping
You can enable FIP snooping globally on all FCoE VLANs on a switch or on an individual FCoE VLAN in
bridge-to-FCF links. By default, FIP snooping is disabled.
NOTE: When you configure the S5000 as an NPIV proxy gateway and enable Fibre Channel
capability (the feature fc command), FIP snooping is automatically enabled on all VLANs on the
switch, using the default FIP snooping settings. Only the fip-snooping max-sessions-per-
enodemac command is supported to configure FIP snooping.
1. Enable the FCoE transit feature on a switch.
CONFIGURATION mode
feature fip-snooping
The default for FCoE transit with FIP snooping is disabled.
2. Enable FIP snooping on all VLANs or on a specified VLAN.
CONFIGURATION mode or VLAN INTERFACE mode
fip-snooping enable
The default for FIP snooping is disabled on all VLANs.
3. Configure the FC-MAP value FIP snooping uses to identify an ENode MAC address on all VLANs.
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FCoE Transit