Administrator Guide
FIP Snooping Prerequisites
On an Aggregator, FIP snooping requires the following conditions:
• A FIP snooping bridge requires DCBX and PFC to be enabled on the switch for lossless Ethernet connections (refer to
Data
Center Bridging (DCB)
). Dell recommends that you also enable ETS; ETS is recommended but not required. DCBX and PFC
mode are auto-congured on Aggregator ports and FIP snooping is operational on the port. If the PFC parameters in a DCBX
exchange with a peer are not synchronized, FIP and FCoE frames are dropped on the port.
• VLAN membership:
– The Aggregator auto-congures the VLANs which handle FCoE trac. You can recongure VLAN membership on a port
(vlan tagged command).
– Each FIP snooping port is auto-congured to operate in Hybrid mode so that it accepts both tagged and untagged VLAN
frames.
– Tagged VLAN membership is auto-congured on each FIP snooping port that sends and receives FCoE trac and has links
with an FCF, ENode server or another FIP snooping bridge.
– The default VLAN membership of the port should continue to operate with untagged frames. FIP snooping is not supported
on a port that is congured for non-default untagged VLAN membership.
FIP Snooping Restrictions
The following restrictions apply to FIP snooping on an Aggregator:
• The maximum number of FCoE VLANs supported on the Aggregator 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-enodemac command. This is congurable only in PMUX mode.
• In a full FCoE N port ID virtualization (NPIV) conguration, 16 sessions (one FLOGI + 15 NPIV sessions) are supported per
ENode. In an FCoE NPV confguration, only one session is supported per ENode.
• The maximum number of FCFs supported per FIP snooping-enabled VLAN is 12.
• Links to other FIP snooping bridges on a FIP snooping-enabled port (bridge-to-bridge links) are not supported on the Aggregator.
Conguring FIP Snooping
FIP snooping is auto-congured on an Aggregator in standalone mode. You can display information on FIP snooping operation and
statistics by entering show commands. 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 congure the FCoE transit parameters on ports, follow these steps.
1. Enable the FCoE transit feature on a switch.
CONFIGURATION mode.
feature fip-snooping
2. Enable FIP snooping on all VLANs or on a specied VLAN.
CONFIGURATION mode or VLAN INTERFACE mode.
fip-snooping enable
By default, FIP snooping is disabled on all VLANs.
3. Congure the FC-MAP value used by FIP snooping on all VLANs.
CONFIGURATION VLAN or INTERFACE mode
fip-snooping fc-map fc-map-value
The default is 0x0EFC00.
The valid values are from 0EFC00 to 0EFCFF.
FIP Snooping
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