IBM z/OS - 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

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.

QDIO Mode - TCP/IP

non-QDIO mode

SNA Passthru

TCP/IP Passthru

HPDT MPC

IP WAN

Intranet

Server

SNA DLSw

TCP/IP

Native SNA

Server

TCP/IP

applications

TN3270 browser

access to SNA

applications

Enterprise

Extender for

SNA end points

Remote Office

IP WAN

Intranet Remote Office

4/16 Mbps

Token-Ring

4/16 Mbps

Token-Ring

Internet or

extranet

Switch/

Hub/

Router

IP Router

Server

DLSw Router

Switch/

Hub/

Router

10/100 Mbps

Ethernet

10/100 Mbps

Ethernet

DLSw

Router IP Router

10/100/1000 Mbps

Ethernet (copper)

10/100/1000 Mbps

Ethernet (copper)

10/100 Mbps

Ethernet

10/100/1000

Mbps

Ethernet

10/100 Mbps

Ethernet

IBM ^ pSeries®,

RS/6000

IBM ^ xSeries®,

Netfinity