Brocade Network OS Administrator’s Guide v4.1.1 - Manual (Page 347)

• VLAN 1 — The Brocade VDX hardware should not forward FIP frames on VLAN 1 because it is
reserved for management traffic only.
• A fabric-provided MAC address is supported.
NOTE
In the fabric-provided MAC address format, VN_Port MAC addresses are based on a 48-bit fabric-
supplied value. The first three bytes of this value are 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 VDX hardware using FIP, Fabric login (FLOGI) or fabric discovery
(FDISC).
• Brocade VDX hardware in the fabric maintains 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 VDX 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 VDX 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 VDX 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 VDX 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 (logical FCoE port) — The Brocade VDX hardware supports a
maximum of 64 logins. The VF_Port rejects further logins after the maximum is reached.
• Maximum logins per switch — The Brocade VDX hardware accepts a maximum of 1000 logins per
switch.
• Maximum logins per VCS cluster — 3000.
FIP logout
FIP logout operates as follows:
• ENodes and VN_Ports can log out from the Brocade VDX hardware using FIP. The Brocade VDX
hardware in the fabric updates the MAC address, WWN, and PID mappings upon logout. The
Brocade VDX hardware also handles scenarios of implicit logout where the ENode has left the fabric
without explicitly logging out.
• FIP logout (LOGO) — The Brocade VDX hardware accepts a FIP LOGO from the ENode. The FIP
LOGO acceptance (ACC) should be sent to the ENode if the ENode MAC address and the VN_Port
MAC address matches the VN_Port table data on the switch. The LOGO is ignored (not rejected) if
the ENode MAC address does not match. The ENode logout is updated in the VN_Port table.
• Implicit logout — With the ENode directly connected to a DCB port, if the port that the ENode is
attached to goes offline, the Brocade VDX hardware implicitly logs out that ENode. ENode logout is
updated in the VN_Port table. The Brocade VDX hardware sends an FIP Clear Virtual Links (CVL) to
the ENode.
The FIP Virtual Link Maintenance protocols provide a mechanism to detect reachability loss to an
Enode or any VN_Port instantiated on that ENode. This is accomplished by the periodic transmission
of FIP Keep-Alive (FKA) messages from the ENode.
If FKA timeouts are enabled on the switch, all VN_Ports associated with an ENode will be implicitly
logged out in the event of an ENode FKA timeout.
FIP login
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