Implementing Fibre Channel; Port Modes - Lenovo Flex System Fabric CN4093 Application Manual

Implementing Fibre Channel

Port Modes

© Copyright Lenovo 2017
This section describes the basic elements of Fibre Channel configuration. For
examples combining these elements, see "Fibre Channel Configuration" on
page 344
Note: Use only the ISCLI or BBI to configure Fibre Channel. Lenovo N/OS CLI is
not supported. After configuring Fibre Channel, save any subsequent
configurations only in ISCLI or BBI. If Lenovo N/OS CLI is used to save any switch
configuration, the Fibre Channel configuration will be lost.
Note: If you need to change the Fibre Channel configuration mode from BBI to
ISCLI, first save the configuration using the save button on the BBI. Do not use
two configuration modes at the same time.
The CN4093 has the following types of network port:
 Ethernet Ports (Internal)
INTA1‐INTA14 (ports 1‐14), INTB1‐INTB14 (15‐28), INTC1‐INTC14 (29‐42)
These standard 10Gb SFP+ Ethernet ports connect internally to servers in the
system chassis.
 Ethernet Ports (External
EXT1‐EXT2 (ports 43‐44)
These standard 10Gb SFP+ Ethernet ports provide external connectors.
High‐Capacity Ethernet Ports (External)

EXT3‐EXT10 (ports 45‐52)
These 40Gb QSFP+ Ethernet ports can be configured as either two 40Gb Ethernet
ports (EXT3 and EXT7), or as four 10Gb Ethernet ports (EXT3‐EXT6,
EXT7‐EXT10).
 Omni Ports (External)
EXT11‐EXT22 (ports 53‐64)
These 10Gb SFP+ hybrid ports can be configured to operate either in Ethernet
mode (the default) or in Fibre Channel mode for direct connection to Fibre
Channel devices.
All Ethernet ports (including the Omni Ports by default) can carry any Ethernet
data traffic, including Fibre Channel over Ethernet (FCoE) traffic.
When configured to operate in Fibre Channel mode, Omni Ports can be used as
Fibre Channel downlinks (connected to Fibre Channel servers or storage devices)
or as uplinks (connected to the data center SAN network).
The Omni Port mode (Ethernet or Fibre Channel) can be changed only for pairs of
ports. The following port pairs share the same mode: EXT11‐EXT12, EXT13‐EXT14,
EXT15‐EXT16, EXT17‐EXT18, EXT19‐EXT20, EXT21‐EXT22. Any combination of
the mentioned port pairs is allowed for converting into FC ports.
Paired ports need not be connected to the same device and can even be used in
different VLANs. The only required mutual attribute is the network type (Ethernet
or Fibre Channel).
Chapter 18: Fibre Channel
333