Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 358

Enabling the FCoE Transit Feature, Enable FIP Snooping on VLANs, Con the FC-MAP Value

Page 358 highlights

• A switch can support a maximum eight FIP snooping VLANs. Configure at least one FCF/bridge-to-bridge port mode interface for any FIP snooping-enabled VLAN. • You can configure multiple FCF-trusted interfaces in a VLAN. • When you disable FIP snooping: - ACLs are not installed, FIP and FCoE traffic is not blocked, and FIP packets are not processed. - The existing per-VLAN and FIP snooping configuration is stored. The configuration is re-applied the next time you enable the FIP snooping feature. • You must apply the CAM-ACL space for the FCoE region before enabling the FIP-Snooping feature. If you do not apply CAM-ACL space the following error message is displayed: Dell(conf)#feature fip-snooping % Error: Cannot enable fip snooping. CAM Region not allocated for Fcoe. Dell(conf)# NOTE: You must manually add the CAM-ACL space to the FCoE region, as it is not applied by default. Enabling the FCoE Transit Feature The following sections describe how to enable FCoE transit. NOTE: FCoE transit is disabled by default. To enable this feature, you must follow the Configure FIP Snooping. As soon as you enable the FCoE transit feature on a switch-bridge, existing VLAN-specific and FIP snooping configurations are applied. The FCoE database is populated when the switch connects to a converged network adapter (CNA) or FCF port and compatible DCB configurations are synchronized. By default, all FCoE and FIP frames are dropped unless specifically permitted by existing FIP snooping-generated ACLs. You can reconfigure any of the FIP snooping settings. If you disable FCoE transit, FIP and FCoE traffic are handled as normal Ethernet frames and no FIP snooping ACLs are generated. The VLAN-specific and FIP snooping configuration is disabled and stored until you re-enable FCoE transit and the configurations are re-applied. Enable FIP Snooping on VLANs You can enable FIP snooping globally on a switch on all VLANs or on a specified VLAN. When you enable FIP snooping on VLANs: • FIP frames are allowed to pass through the switch on the enabled VLANs and are processed to generate FIP snooping ACLs. • FCoE traffic is allowed on VLANs only after a successful virtual-link initialization (fabric login FLOGI) between an ENode and an FCF. All other FCoE traffic is dropped. • You must configure at least one interface for FCF (FIP snooping bridge-bridge) mode on a FIP snooping-enabled VLAN. You can configure multiple FCF trusted interfaces in a VLAN. • A maximum of eight VLANS are supported for FIP snooping on the switch. When enabled globally, FIP snooping processes FIP packets in traffic only from the first eight incoming VLANs. When enabled on a per-VLAN basis, FIP snooping is supported on up to eight VLANs. Configure the FC-MAP Value You can configure the FC-MAP value to be applied globally by the switch on all or individual FCoE VLANs to authorize FCoE traffic. The configured FC-MAP value is used to check the FC-MAP value for the MAC address assigned to ENodes in incoming FCoE frames. If the FC-MAP value does not match, FCoE frames are dropped. A session between an ENode and an FCF is established by the switch-bridge only when the FC-MAP value on the FCF matches the FC-MAP value on the FIP snooping bridge. FCoE Transit 358

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A switch can support a maximum eight FIP snooping VLANs. Configure at least one FCF/bridge-to-bridge port mode
interface for any FIP snooping-enabled VLAN.
You can configure multiple FCF-trusted interfaces in a VLAN.
When you disable FIP snooping:
ACLs are not installed, FIP and FCoE traffic is not blocked, and FIP packets are not processed.
The existing per-VLAN and FIP snooping configuration is stored. The configuration is re-applied the next time you
enable the FIP snooping feature.
You must apply the CAM-ACL space for the FCoE region before enabling the FIP-Snooping feature. If you do not apply
CAM-ACL space the following error message is displayed:
Dell(conf)#feature fip-snooping
% Error: Cannot enable fip snooping. CAM Region not allocated for Fcoe.
Dell(conf)#
NOTE:
You must manually add the CAM-ACL space to the FCoE region, as it is not applied by default.
Enabling the FCoE Transit Feature
The following sections describe how to enable FCoE transit.
NOTE:
FCoE transit is disabled by default. To enable this feature, you must follow the
Configure FIP Snooping
.
As soon as you enable the FCoE transit feature on a switch-bridge, existing VLAN-specific and FIP snooping configurations are
applied. The FCoE database is populated when the switch connects to a converged network adapter (CNA) or FCF port and
compatible DCB configurations are synchronized. By default, all FCoE and FIP frames are dropped unless specifically permitted
by existing FIP snooping-generated ACLs. You can reconfigure any of the FIP snooping settings.
If you disable FCoE transit, FIP and FCoE traffic are handled as normal Ethernet frames and no FIP snooping ACLs are
generated. The VLAN-specific and FIP snooping configuration is disabled and stored until you re-enable FCoE transit and the
configurations are re-applied.
Enable FIP Snooping on VLANs
You can enable FIP snooping globally on a switch on all VLANs or on a specified VLAN.
When you enable FIP snooping on VLANs:
FIP frames are allowed to pass through the switch on the enabled VLANs and are processed to generate FIP snooping ACLs.
FCoE traffic is allowed on VLANs only after a successful virtual-link initialization (fabric login FLOGI) between an ENode and
an FCF. All other FCoE traffic is dropped.
You must configure at least one interface for FCF (FIP snooping bridge-bridge) mode on a FIP snooping-enabled VLAN. You
can configure multiple FCF trusted interfaces in a VLAN.
A maximum of eight VLANS are supported for FIP snooping on the switch. When enabled globally, FIP snooping processes
FIP packets in traffic only from the first eight incoming VLANs. When enabled on a per-VLAN basis, FIP snooping is
supported on up to eight VLANs.
Configure the FC-MAP Value
You can configure the FC-MAP value to be applied globally by the switch on all or individual FCoE VLANs to authorize FCoE
traffic.
The configured FC-MAP value is used to check the FC-MAP value for the MAC address assigned to ENodes in incoming FCoE
frames. If the FC-MAP value does not match, FCoE frames are dropped. A session between an ENode and an FCF is established
by the switch-bridge only when the FC-MAP value on the FCF matches the FC-MAP value on the FIP snooping bridge.
FCoE Transit
358