User manual IBM TOKEN-RING PCI FAMILY ADAPTER

[. . . ] IBM Token-Ring PCI Family Adapter User's Guide Includes information about: IBM 16/4 Token-Ring PCI Adapter 2 IBM 16/4 Token-Ring PCI Adapter 2 with Wake on LAN IBM High-Speed 100/16/4 Token-Ring PCI Adapter Note Before using this information and the product it supports, be sure to read "Safety Information" on page vii and Appendix H, "Notices" on page H-1. First Edition (September 1998) The following paragraph does not apply to the United Kingdom or any country where such provisions are inconsistent with local law: INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES THIS PUBLICATION "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply to you. This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in new editions of the publication. [. . . ] That address appears on the adapter bracket. See Figure 4-1 on page 4-4 for an illustration. Valid values: "400000000000" to "7FFFFFFFFFFF" in hex DataRate Used for configuring the ring speed of the adapter. It is recommended for servers that the DataRate be set to M16 or M4, and clients be set to Auto. This parameter is ignored for 100 Mbps network operation. Valid values: AUTO AutoSense ­ automatic ring-speed detection. Note: The adapter will not function with AutoSense if it is the first one on the ring. AutoSense is not designed for changing ring speed while the adapter is operational. It is usually necessary to reload the driver. 4-Mbps ring-speed operation. The default is AUTO. EnableTxEofInt This parameter specifies whether the Transmit End of Frame Interrupt is enabled. Valid values: Yes No Indicates that the interrupt will be recognized by the interrupt handler. Indicates that the interrupt will not be recognized by the interrupt handler. This value is preferable in some environments (such as a server environment) to reduce the number of times the interrupt handler is invoked. This can result in reduced CPU utilization and increased performance. The default is Yes. MaxTransmits (OS/2 only) This parameter specifies the maximum number of transmit queue entries. The value should be set high enough to accommodate the sum of all MaxTransmits for all protocol drivers using the adapter concurrently. Valid values: 1 to 128 The default is 31. © Copyright IBM Corp. DOS and OS/2 NDIS Device Driver Parameters in PROTOCOL. INI Parameter MaxTxFrameSize (OS/2 only) Explanation This parameter specifies the maximum frame size that can be transmitted on the LAN. The parameter value serves as an upper limit. The actual maximum frame size might be smaller. The maximum frame size supported by the NDIS device driver is the lesser of the following values: The value of this MaxTxFrameSize parameter Total Receive Buffer Area (see the MinRcvBuffs parameter) The physical frame size capacity of the network (4500 bytes for 4-Mbps Token Rings and 18 200 bytes for 16-Mbps and 100-Mbps Token Rings) Do not count the 4 bytes of FCS defined for a frame when setting this parameter value. [. . . ] A node that is ready to send can capture a token and insert data for transmission. (1) A ring network that allows unidirectional data transmission between data stations by a token-passing procedure over one transmission medium so that the transmitted data returns to and is removed by the transmitting station. The IBM Token-Ring Network is a baseband LAN with a star-wired ring topology that passes tokens from network adapter to network adapter. (2) A network that uses a ring topology, in which tokens are passed in a sequence from node to node. [. . . ]