Configuring The Fc Map Value; Configuring Ports For Fip Snooping - Dell M6220 User Configuration Manual

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a FIP session requires that an untagged VLAN exist on all FIP-enabled ports,

in addition to the VLAN that carries established FIP sessions. FIP snooping

must be enabled on all VLANs carrying FIP or FCoE traffic.

When FIP snooping is disabled, received FIP frames are forwarded or flooded

using the normal multicast rules.

FIP Snooping will become operationally active on a port only when priority flow

control is enabled and at least one lossless CoS queue is active.

Configuring the FC Map Value

When configured using fabric provided MAC addresses, FCoE devices

transmit frames containing the FC map value in the upper 24 bits. Only

frames that match the configured FC map value are passed across the VLAN.

Frames with MAC addresses that do not match the FC map value are

To relay the FIP packets received from the hosts toward the Fibre Channel

forwarders (FCFs), such as an FC router that has a direct FC link into

storage, the switch needs to know the interfaces the FCFs are on. By default,

an interface is configured to be a host facing interface, not an FCF facing

Dell recommends that FCF-facing ports be placed into auto-upstream mode

in order to receive DCBx information and propagate it to the Converged

Network Adaptors (CNAs) on the auto-downstream ports. Interfaces enabled

for PFC should be configured in trunk mode and must be PFC operationally

enabled before FCoE traffic can pass over the port.

To configure a port channel for FIP snooping, enable DCBX on the member

interfaces in the auto-up role, configure a switchport mode trunk on the port

channel, and enable FIP snooping on the port channel. FIP snooping on a

port channel is supported only when the port channel is directly connected to

an FCF. Since FIP snooping utilizes multicast addresses that are not in the

range of "well-known" multicast addresses, it is necessary to set IGMP

snooping to flood packets addressed to unknown multicast addresses.

Configuring Data Center Bridging Features

M8024 M6348 M8024-k