IBM z/OS manual Z990 OSA-Express 1000BASE-T Ethernet, OSA-Express Integrated Console Controller

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	QDIO Mode - TCP/IP
SNA Passthru
TCP/IP Passthru
HPDT MPC	10/100/1000 Mbps
	Ethernet (copper)
		IBM ^pSeries®,
10/100/1000 Mbps		RS/6000
Ethernet (copper)
		IBM ^xSeries®,
		Netfinity
Switch/	10/100/1000	Switch/
		Hub/
Hub/	Mbps
		Router
Router	Ethernet
10/100 Mbps
Ethernet
	Server	10/100 Mbps
Server		Ethernet
DLSw Router		IP Router

		Internet or
IP WAN	IP WAN	extranet
Intranet	Intranet	Remote Office
Remote Office
DLSw	IP Router
Router
4/16 Mbps		4/16 Mbps
Token-Ring		Token-Ring
		TCP/IP
		applications

	SNA DLSw	TN3270 browser
		access to SNA
	TCP/IP
		applications
	Native SNA
		Enterprise
		Extender for
		SNA end points
10/100 Mbps		10/100 Mbps
Server Ethernet		Server Ethernet

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.

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