Brocade Communications Systems 53-1001761-01 manual Logincfg, Name server, FC zoning

FCoE Initialization Protocol 1

Logincfg

The Brocade FCoE hardware logincfg mechanism operates as follows:

•The logincfg is the mechanism for controlling ENode logins per Brocade FCoE hardware. Each unit of Brocade FCoE hardware maintains its own logincfg.

•Login configuration management is optional—when login management is disabled, the default behavior is to accept logins from any ENode.

•Logingroup creation and deletion—The Brocade FCoE hardware accepts valid logingroup names and member WWNs. The Brocade FCoE hardware rejects invalid entries. The Brocade FCoE hardware allows the deletion of logingroups that are defined and committed. You can display defined and committed logingroups. The logingroup capability is disabled by default.

•Member add and remove—You can add valid member WWNs. Invalid WWNs are rejected. Duplicate WWNs are uniquely resolved. You can display the current view of defined logingroups when changes are made to the configuration.

•Commit and abort—Defined logingroup changes can be aborted with no effect on existing sessions. The Brocade FCoE hardware does not apply the configurations to new sessions until the changes are committed. Once defined, logingroups are committed. The Brocade FCoE hardware immediately uses the new configuration.

•No traffic disruption—Changing the logingroup without committing the changes does not affect existing sessions. After committing the changes, Enodes that were already logged in continue to function even when that member is removed from the logingroup. New logins from the former member are rejected.

Name server

The Brocade FCoE hardware name server function operates as follows:

•ENode login and logout to and from the Brocade FCoE hardware updates the name server in the FC fabric. The Brocade FCoE hardware maintains the MAC address to WWN/PID mappings.

•ENode login and logout—When an ENode login occurs through any means (FIP FLOGI, FIP FDISC, FCoE FLOGI, or FCoE FDISC), an entry is added to the name server. When an ENode logout occurs through any means (FIP LOGO, FCoE LOGO, or implicit logout), the entry is removed from the name server.

•ENode data—The Brocade FCoE hardware maintains a VN_port table. The table tracks the ENode MAC address, FIP login parameters for each login from the same ENode, and WWN/PID mappings on the FC side. You can display the VN_port table with the fcoe -loginshowport command.

FC zoning

The Brocade FCoE hardware FC zoning operates as follows:

•The virtual devices created by the Brocade FCoE hardware on behalf of the ENodes are subject to FC zoning. An ENode is only allowed to access devices in the same zones. Administrative Domains (ADs) are not supported in the Fabric OS v6.4.0 release.

•ENodes can access FC devices in the same zones— FC devices that are not in the same zones cannot be accessed. Zone members can overlap in multiple zones (that is, overlapping zones). Zoning changes are immediately enabled by hardware enforced zoning.

Converged Enhanced Ethernet Administrator’s Guide	11
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