Brocade Communications Systems 53-1001761-01 manual

Converged Enhanced Ethernet Administrator’s Guide 53-1001761-01

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NOTE

In the fabric-provided MAC address format, VN_port MAC addresses are based on a 24-bitfabric-supplied value. The first three bytes of this value is referred to as the FCMAP. The next three bytes are the FC ID, which is assigned by the switch when the ENode logs in to the switch.

FIP login

FIP login operates as follows:

• ENodes can log in to the Brocade FCoE hardware using FIP. Fabric login (FLOGI) and fabric discovery (FDISC) are accepted. Brocade FCoE hardware in the fabric maintain the MAC address, World Wide Name (WWN), and PID mappings per login. Each ENode port should have a unique MAC address and WWN.

• FIP FLOGI—The Brocade FCoE hardware accepts the FIP FLOGI from the ENode. The FIP FLOGI acceptance (ACC) is sent to the ENode if the ENode MAC address or WWN matches the VN_port table on the Brocade FCoE hardware. The FIP FLOGI request is rejected if the ENode MAC address or WWN does not match. The ENode login is added to the VN_port table. Fabric Provided MAC addressing (FPMA) is supported.

• FIP FDISC—The Brocade FCoE hardware accepts FIP FDISC from the ENode. FIP FDISC acceptance (ACC) is sent to the ENode if the ENode MAC address or WWN matches the VN_port table on the Brocade FCoE hardware. The FIP FDISC request is rejected if the ENode MAC address or WWN does not match. The ENode login is added to the VN_port table. FPMA is supported.

• Maximum logins per VF_port—The Brocade FCoE hardware supports a maximum of 255 logins per VF_port. The VF_port rejects further logins after the maximum is reached.

• Maximum logins per switch—The Brocade FCoE hardware accepts a maximum of 1024 logins per switch. Note that the Brocade FCoE hardware does not reject further logins after the maximum is reached.

VLAN 1—The Brocade FCoE hardware should not forward FIP frames on VLAN 1 because it is reserved for management traffic only.

FCF forwarding—The Brocade FCoE hardware forwards FIP frames only when the VLAN is set to FCF forwarding mode.

Login group—When enabled, replies to solicitations are sent only by Brocade FCoE hardware that have the ENode in the login group.

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• A fabric-provided MAC address is supported. A server-providedMAC-address is not supported in the Fabric OS v6.4.0 release.

VF_port configuration—An FCoE port accepts Enode requests when it is configured as a VF_port and enabled. An FCoE port does not accept ENode requests when disabled.

The Brocade FCoE hardware uses the FCoE Initialization Protocol (FIP). Enodes discover FCFs and initialize the FCoE connection through the FIP.

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• Solicited advertisements—A typical scenario is where a Brocade FCoE hardware receives a FIP solicitation from an ENode. Replies to the original FIP solicitation are sent to the MAC address embedded in the original FIP solicitation. After being accepted, the ENode is added to the VN_port table.

FCoE Initialization Protocol

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