Administrator Guide

An FCoE map is used to identify the SAN fabric to which FCoE storage trac 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 trac.
• 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 dierent fabrics.
When you congure 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 congured 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.
Conguring an NPIV Proxy Gateway
Prerequisite: Before you congure an NPIV proxy gateway (NPG) with the FC Flex IO module on an MXL 10/40GbE Switch or an M
I/O Aggregator, ensure that the following features are enabled.
• DCB is enabled by default with the FC Flex IO module on the MXL 10/40GbE Switch or M I/O Aggregator.
• Autonegotiated DCBx is enabled for converged trac by default with the FC Flex IO module Ethernet ports on all MXL
10/40GbE Switches or M I/O Aggregators.
• FCoE transit with FIP snooping is automatically enabled when you congure Fibre Channel with the FC Flex IO module on the
MXL 10/40GbE Switch or M I/O Aggregator.
To congure an NPG operation with the FC Flex IO module on an MXL 10/40GbE Switch or an M I/O Aggregator, follow these
general conguration steps:
1. Enabling Fibre Channel Capability on the Switch
2. Creating a DCB map
3. Applying a DCB map on server-facing Ethernet ports
4. Creating an FCoE VLAN
5. Creating an FCoE map
6. Applying an FCoE map on server-facing Ethernet ports
7. Applying an FCoE Map on fabric-facing FC ports
Enabling Fibre Channel Capability on the Switch
Enable the FC Flex IO module on an MXL 10/40GbE Switch or an M I/O Aggregator that you want to congure as an NPG for the
Fibre Channel protocol. When you enable Fibre Channel capability, FCoE transit with FIP snooping is automatically enabled on all
VLANs on the switch, using the default FCoE transit settings.
FC Flex IO Modules
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