Dell Networking S6000 Uživatelský manuál stáhnout pdf (Strana 320)

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For VLAN membership, you must:

• create the VLANs on the switch which handles FCoE traffic (use the interface vlan command).

• configure each FIP snooping port to operate in Hybrid mode so that it accepts both tagged and

untagged VLAN frames (use the portmode hybrid command).

• configure tagged VLAN membership on each FIP snooping port that sends and receives FCoE traffic

and has links with an FCF, ENode server, or another FIP snooping bridge (use the tagged port-type

slot/port command).

The default VLAN membership of the port must continue to operate with untagged frames. FIP snooping

is not supported on a port that is configured for non-default untagged VLAN membership.

Important Points to Remember

• Enable DCBx on the switch before enabling the FIP Snooping feature.

• To enable the feature on the switch, configure FIP Snooping.

• To allow FIP frames to pass through the switch on all VLANs, enable FIP snooping globally on a

switch.

• A switch can support a maximum eight 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 Configuring

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.

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