Configuration manual

Term Description
principal switch The switch in a fabric with the lowest domain number. The principal
switch accesses the master name database and the zone/zone set
database.
DCB Maps
A Data Center Bridging (DCB) map is used to configure DCB functionality, such as PFC and ETS, on MXL
10/40GbE Switch and M I/O Aggregator with the FC Flex IO module Ethernet ports that support CEE
traffic and are DCBx-enabled, by default. For more information, on PFC and ETS, see Data Center
Bridging (DCB).
By default, no PFC and ETS settings in a DCB map are applied to MXL 10/40GbE Switch and M I/O
Aggregator with the FC Flex IO module Ethernet ports when they are enabled. On an MXL 10/40GbE
Switch and M I/O Aggregator with the FC Flex IO module NPG, you must configure PFC and ETS
parameters in a DCB map and then apply the map to server-facing Ethernet ports (see the “Creating a
DCB map" section).
FCoE Maps
An FCoE map is used to identify the SAN fabric to which FCoE storage traffic is sent. Using an FCoE map,
an MXL 10/40GbE Switch and M I/O Aggregator with the FC Flex IO module NPG operates as an FCoE-
FC bridge between an FC SAN and FCoE network by providing FCoE-enabled servers and switches with
the necessary parameters to log in to a SAN fabric.
An FCoE map applies the following parameters on server-facing Ethernet and fabric-facing FC ports on
the MXL 10/40GbE Switch and M I/O Aggregator with the FC Flex IO module:
• The dedicated FCoE VLAN used to transport FCoE storage traffic.
• The FC-MAP value used to generate a fabric-provided MAC address.
• The association between the FCoE VLAN ID and FC fabric ID where the desired storage arrays are
installed. Each Fibre Channel fabric serves as an isolated SAN topology within the same physical
network.
• The priority used by a server to select an upstream FCoE forwarder (FCF priority)
• FIP keepalive (FKA) advertisement timeout
NOTE:
In each FCoE map, the fabric ID, FC-MAP value, and FCoE VLAN must be unique. Use one FCoE
map to access one SAN fabric. You cannot use the same FCoE map to access different fabrics.
When you configure an MXL 10/40GbE Switch and M I/O Aggregator with the FC Flex IO module as an
NPG, FCoE transit with FIP snooping is automatically enabled and configured using the parameters in the
FCoE map applied to server-facing Ethernet and fabric-facing FC interfaces (see FIP Snooping on an NPIV
Proxy Gateway).
After you apply an FCoE map on an FC port, when you enable the port (no shutdown), the NPG starts
sending FIP multicast advertisements on behalf of the FC port to downstream servers in order to
advertise the availability of a new FCF port on the FCoE VLAN. The FIP advertisement also contains a
keepalive message to maintain connectivity between a SAN fabric and downstream servers.
1032
FC Flex IO Modules