Chapter 2. Architecture and technical overview
65
100 Mb (100 BaseT) full duplex. Each RJ45 port's configuration is independent of the other.
The RJ45 ports use 4-pair Cat 6A cabling for distances of up to 100 meters. CAT5 cabling is
not supported.
The two 10 Gb copper twinax ports are SFP+ and the transceivers are included. The ports
support up to 5 m cabling distances and active copper twinax cables are available in length of
1 m (FC EN01), 3 m (FC EN02), or 5 m (FC EN03). Active cables differ from passive cables.
The Converged Ethernet Network Adapter (CNA) capability on these two copper SFP+ twinax
ports support both Ethernet NIC and Fibre Channel over Ethernet (FCoE) workload
simultaneously.
10 Gb Ethernet (RJ45) and 10 Gb SR optical
This card (FC EN11, CCIN 2C4D) provides four Ethernet connections: Two RJ45 ports
(10 Gb/1 Gb/100 Mb) and two SR fiber optical ports (10 Gb).
The two 10 Gb SR optical ports (10 GBase-SR) are SFP+ and include the transceivers. The
ports have LC Duplex type connectors and utilize shortwave laser optics and MMF-850nm
fiber cabling. With 62.5 micron OM1, up to 33 meter length fiber cables are supported. With
50 micron OM2, up to 82 meter fiber cable lengths are supported. With 50 micron OM3 or
OM4, up to 300 meter fiber cable lengths are supported.
The two RJ45 ports default to auto-negotiate the highest speed either 10 Gb (10 GBaseT),
1 Gb (1000 BaseT) or 100 Mb (100 BaseT). Each RJ45 port's configuration is independent of
the other. The RJ45 ports use 4-pair Cat 6A cabling for distances of up to 100 meters. CAT5
cabling is not supported.
2.7 PCI adapters
This section covers the types and functions of the PCI adapters supported by IBM Power 750
and Power 760 systems.
2.7.1 PCI Express
Peripheral Component Interconnect Express (PCIe) uses a serial interface and allows for
point-to-point interconnections between devices (using a directly wired interface between
these connection points). A single PCIe serial link is a dual-simplex connection that uses two
pairs of wires, one pair for transmit and one pair for receive, and can transmit only one bit per
cycle. These two pairs of wires are called a
lane
. A PCIe link can consist of multiple lanes. In
such configurations, the connection is labelled as x1, x2, x8, x12, x16, or x32, where the
number is effectively the number of lanes.
Two generations of PCIe interfaces are supported in Power 750 and Power 760 models:
Gen1: Capable of transmitting at the extremely high speed of 2.5 Gbps, which gives a
capacity of a peak bandwidth of 2 GBps simplex on an 8-lane interface
Considerations: Consider the following information:
The SFP+ twinax copper is not AS/400 5250 twinax or CX4.
A FCoE switch is required for any FCoE traffic.
IBM i supports Ethernet NIC through VIOS, but does not support the use of FCoE data
(with or without VIOS) through this adapter.