Converged Enhanced Ethernet Administrator’s Guide 9
53-1002163-02
FCoE Initialization Protocol 1
DRAFT: BROCADE CONFIDENTIAL
NOTE
In the fabric-provided MAC address format, VN_port MAC addresses are based on a 24-bit
fabric-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 rejects further logins after the maximum is
reached.
FIP logout
FIP logout operates as follows:
•ENodes can log out from the Brocade FCoE hardware using FIP. The Brocade FCoE hardware in
the fabric updates the MAC address, WWN, and PID mappings upon logout. The Brocade FCoE
hardware also handles scenarios of implicit logout where the ENode has left the fabric without
explicitly logging out.
•FIP logout (LOGO)—The Brocade FCoE hardware accepts a FIP LOGO from the ENode. The FIP
LOGO ACC should be sent to the ENode if the ENode MAC address matches the VN_port table
on the Brocade FCoE hardware. The LOGO is ignored (not rejected) if the ENode MAC address
does not match. The ENode logout is updated in the VN_port table. FPMA is supported.
•Implicit logout—With the ENode directly connected to a CEE port, if the port that the ENode is
attached to goes offline, the Brocade FCoE hardware implicitly logs out that ENode. ENode
logout is updated in the VN_port table. The Brocade FCoE hardware sends clear virtual link
(CVL) on behalf of the ENode.