Network Attachments

To attach TCP/IP to the network you need one of the following network processors and associated components or their equivalents:

2216 Multiaccess Connector Model 400®:

To attach to the 2216 using MPC+ or LCS, an ESCON® or parallel channel adapter is required. For details, refer to 2216 ESCON Adapter Setup.

IBM® 3172 Interconnect Controller with the Interconnect Controller Program (ICP):

IBM 3172 Interconnect Controller Model 001, 002, or 003
IBM Interconnect Controller Program (5601-433 or 5621-425)
One of the following types of adapters:
- 3172 Interconnect Controller Token-Ring Adapter (#2215)
- 3172 Interconnect Controller Ethernet Adapter (#2220)
- 3172 Interconnect Controller Ethernet Adapter (#2225)
- Auto LANStreamer MC 32 Adapter (#2235)
- EtherStreamer MC 32 Adapter (#2245)
- 3172 Interconnect Controller FDDI A Station Adapter (#2250)
- 3172 Interconnect Controller Network Baseband Adapter/A (#2270)
- 3172 Interconnect Controller Network Adapter II/A (#2271)
- 3172 Interconnect Controller Network Adapter II/A Frequency 2 (#2272)
- 3172 Interconnect Controller Network Adapter II/A Frequency 3(#2273)
- 3172 Interconnect Controller FDDI Adapter (#2300)
- TURBOWAYS 100 ATM Adapter for the 3172 Model 3 (#2310) (LAN emulation for Token-Ring and Ethernet)
One of the following channel adapters:
- PCA adapter (#2501)
- ESCON adapter (#2800)
Standard System/370 I/O Channel Interface Cable

Note: The Pentium P90 Processor is supported.

IBM 8232 LAN Channel Station for LANs:

IBM 8232 LAN Channel Station Model 001 or 002
One or more adapters for Token Ring, PC Network, or Ethernet
Standard System/370 I/O Interface cable

IBM RISC System/6000 Channel Attachment:

To attach to the RISC System/6000 using CLAW, the following items are required:
- IBM RISC System/6000 with the Block Multiplexer Channel Adapter (#2755)
- AIX® V3R2.3 (5756-030), or later, with feature (#5056)
- Standard ESCON Adapter
To attach to the RISC System/6000 using MPCPTP, the following items are required:
- AIX 4.3 (or later)
- PCI ESCON Control Unit Connectivity Version 2.1

IBM Open Systems Adapter (OSA) Feature:

OSA-2 Feature supporting FDDI, Ethernet, Fast Ethernet, Token Ring, and ATM connections
OSA-Express supporting Gigabit Ethernet, Fast Ethernet and Token Ring connections
OSA-Express2 supporting Gigabit Ethernet, 10 Gigabit Ethernet, and 1000Base-T Ethernet connections on zEC12, z196, z114, , z10™ EC, z10 BC, z9® EC, or z9 BC TO BE DELETED: z990, and z890servers
OSA-Express3 supporting Gigabit Ethernet and 10 Gigabit Ethernet, and 1000Base-T connections on zEC12, z196, z114, z10 EC and z10 BC servers

OSA Direct SNMP subagent support requires a server with the OSA-Express feature running in QDIO mode (OSD) or non-QDIO mode (OSE). It is available on all servers supported by z/OS®. For information about the level of each server that is required for this support, see zEnterprise System and System z10 OSA-Express Customer's Guide and Reference.

For additional information about OSA, see the following publication:

OSA-Express: zEnterprise System and System z10 OSA-Express Customer's Guide and Reference

IBM 37xx family of communication controllers for X.25, Systems Network Architecture, and IP over Channel Data Link Control:

IBM 3745 Communication Controller for:
- X.25
- Ethernet
- Token Ring
- Frame Relay
A microcode engineering change (EC) is required for the IP Dynamics (with Ethernet) capabilities:
- C38006 for models 130, 150, 160, 170, and 17A
- C37967 for models 210, 310, 410, and 610
- C39888 for models 21A, 31A 41A, and 61A
IBM 3746 or 3746–900 Communication Controller for:
- X.25
- ATM
- Token Ring
- Frame Relay
A microcode engineering change (EC) is required for the IP-over-Channel (CDLC) for the 3746
The 3746-900 requires microcode EC number D22510 at microcode change level ECA 142 for communication across an ESCON channel. The microcode level is shipped automatically with new 3746-900s. For installed machines running an earlier level of microcode, microcode ECA 142 can be ordered by the service representative.
Standard System/370 I/O Channel Interface Cable

HYPERchannel A220 Processor Adapter 42990007:

HYPERchannel Series A devices
HYPERchannel Series DX devices, provided they function as Series A devices (For additional information, refer to the appropriate Network Systems Corporation documentation.)
Standard System/370 I/O Interface cable

The ATTENTION+BUSY and unit check conditions are normally handled in the background and can affect performance without any visible evidence. The recommendations on Hyperchannel A222 and A223 Mode Switch Settings follow:

The Disable Attentions setting on the Hyperchannel box eliminates the ATTENTION+BUSY status in response to read commands. This setting reduces overhead.
The Enable Command Retry setting reduces the number of unit checks needed because of a trunk connection. This setting improves performance because it eliminates the need to perform sense operations and retry commands.