IBM 990 Reference Manual page 22

z990 OSA-Express 1000BASE-T Ethernet
The new OSA-Express 1000BASE-T Ethernet feature
replaces the current Fast Ethernet (10/100 Mbps) feature.
This new feature is capable of operating at 10,100 or 1000
Mbps (1 Gbps) using the same copper cabling infrastructure
as Fast Ethernet making transition to this higher speed Ether-
net feature a straightforward process. It is designed to sup-
port Auto-negotiation, QDIO and non-QDIO environments on
each port, allowing you to make the most of your TCP/IP and
SNA/APPN ® and HPR environments at up to gigabit speeds.
When this adapter is operating at gigabit Ethernet speed it
runs full duplex only. It also can support standard (1492 or
1500 byte) and jumbo (8992 byte) frames.
The new Checksum offl oad support on the 1000BASE-T Eth-
ernet feature when operating in QDIO mode at gigabit speed
is designed to offl oad z/OS 1.5 and Linux TCP/IP stack pro-
cessing of Checksum packet headers for TCP/IP and UDP.
non-QDIO mode
SNA Passthru
TCP/IP Passthru
HPDT MPC
10/100/1000 Mbps
Ethernet (copper)
Switch/
Hub/
Router
10/100 Mbps
Ethernet
Server
DLSw Router
IP WAN
Intranet
Remote Office
DLSw
Router
4/16 Mbps
Token-Ring
SNA DLSw
TCP/IP
Native SNA
10/100 Mbps
Ethernet
Server
QDIO Mode - TCP/IP
10/100/1000 Mbps
Ethernet (copper)
®
IBM ^ pSeries
,
RS/6000
®
IBM ^ xSeries
,
Netfinity
Switch/
10/100/1000
Hub/
Mbps
Router
Ethernet
10/100 Mbps
Server
Ethernet
IP Router
Internet or
extranet
IP WAN
Intranet
Remote Office
IP Router
4/16 Mbps
Token-Ring
TCP/IP
applications
TN3270 browser
access to SNA
applications
Enterprise
Extender for
SNA end points
10/100 Mbps
Ethernet
Server
OSA-Express Integrated Console Controller
The new Open Systems Adapter-Express Integrated Con-
sole Controller function (OSA-ICC), which is exclusive to
IBM and the IBM z890 and z990 servers since it is based
on the OSA-Express feature, supports the attachment of
non-SNA 3270 terminals for operator console applications.
Now, 3270 emulation for console session connections
is integrated in the zSeries and can help eliminate the
requirement for external console controllers (2074, 3174)
helping to reduce cost and complexity.
The OSA-ICC uses one or both ports on an OSA-Express
1000BASE-T Ethernet feature with the appropriate
Licensed Internal Code (LIC). The OSA-ICC is enabled
using CHPID type OSC.
The OSA-ICC supports up to 120 client console sessions
either locally or remotely.
Support for this new function will be available for z/VM
Version 4 Release 4 and later, z/OS Version 1 Release3,
VSE/ESA Version 2 Release 6 onwards and TPF.
22