Reference Guide

Table 20. Impact of Enabling FIP Snooping
Impact Description
MAC address learning MAC address learning is not performed on FIP and
FCoE frames, which are denied by ACLs
dynamically created by FIP snooping on server-
facing ports in ENode mode.
MTU auto-configuration MTU size is set to mini-jumbo (2500 bytes) when a
port is in Switchport mode, the FIP snooping
feature is enabled on the switch, and FIP snooping
is enabled on all or individual VLANs.
Link aggregation group (LAG) FIP snooping is supported on port channels on
ports on which PFC mode is on (PFC is
operationally up).
STP If you enable an STP protocol (STP, RSTP, PVSTP,
or MSTP) on the switch and ports enter a blocking
state, when the state change occurs, the
corresponding port-based ACLs are deleted. If a
port is enabled for FIP snooping in ENode or FCF
mode, the ENode/FCF MAC-based ACLs are
deleted.
FIP Snooping Restrictions
The following restrictions apply when you configure FIP snooping.
• The maximum number of FCoE VLANs supported on the switch is eight.
• The maximum number of FIP snooping sessions supported per ENode server is 32. To increase the
maximum number of sessions to 64, use the fip-snooping max-sessions-per-endomac
command.
• The maximum number of FCFs supported per FIP snooping-enabled VLAN is twelve.
Configuring FIP Snooping
You can enable FIP snooping globally on all FCoE VLANs on a switch or on an individual FCoE VLAN.
By default, FIP snooping is disabled.
To enable FCoE transit on the switch and configure the FCoE transit parameters on ports, follow these
steps.
1. Configure FCoE.
FCoE configuration:
copy flash:/ CONFIG_TEMPLATE/ FCoE_DCB_Config running-config
The configuration files are stored in the flash memory in the CONFIG_TEMPLATE file.
NOTE: DCB/DCBx is enabled when either of these configurations is applied.
2. Save the configuration on the switch.
EXEC Privilege mode.
write memory
354
FCoE Transit