IBM 8260 Nways Multiprotocol Switching Hub -- Switching Modules Series

October 8, 1996
Announcement Number: 196-237

Document's Table of Contents:

At a Glance

New switching modules, called the Switching Module Series, are available with the 8260 Multiprotocol Switching Hub. These features help improve your network performance by reducing backbone congestion. The Switching Module Series:

  • Provides scalable bandwidth to support the ever growing requirements for today's bandwidth-intensive applications
  • Supports the high-function demands of backbone switching applications
  • Simplifies the configuration and management of your network with support for ASIC-based Virtual Networking
  • Ensures maximum network performance while reducing operating costs
  • Provides non-stop operation for mission critical, high-performance networks via fault-tolerant features
  • Provides a single point of network control and management
  • Includes integrated RMON and Roving Port Analysis for proactive distributed management


The 8260 Switching Module Series is a new set of Ethernet and FDDI switching modules that maximize network performance by reducing backbone congestion and eliminating bandwidth overload. In addition, the Switching Module Series in a 8260 hub positions you for future growth by making it easy for you to migrate from shared LANs to switched LANs and ATM.

With up to 204 switched 10BaseT ports or up to 68 100BaseTx/Fx, the Switching Modules Series offers the highest level of scalability, flexibility, and functionality in the IBM suite of LAN Ethernet and FDDI switching solutions. The Switching Modules Series supports the following:

Fast Ethernet Backbone Switching: For high-performance Fast Ethernet Switching to immediately solve backbone congestion problems.

FDDI/Ethernet Backbone Switching: For immediate relief from backbone congestion with little or no changes to network devices. By putting the Ethernet/FDDI in front of the routers, most of the traffic is diverted from the router, extending the life of the routers.

FDDI Switching: Relieves FDDI congestion by transforming shared media FDDI backbones into a switched FDDI network.

Floor Wiring Closet Ethernet Switching: In this case the 8260 with the Switching Module Series would be used as a floor wiring closet either alone with 10 Mbps bandwidth per user, or in combination with Ethernet concentration modules for shared bandwidth between users. As requirements for more bandwidth per user increases, you can add more switching modules.

With the Switching Module Series installed in the 8260 hub, you can combine modules of different types and different media interfaces within the same chassis and communicate over a new high-speed backplane channel running at 2 Gbps. This new backplane channel is called the Packet Channel and you can add it to an existing 8260 Model 017, 010 or A17. Or if you do not have an 8260 currently installed, the Packet Channel comes preinstalled on all initial orders of the new 8260 Models P17, P10 and G17.

Intended Customers

Customers looking for:

  • A backbone Fast Ethernet switch
  • An Ethernet 10 Mbps to FDDI switch
  • An FDDI switch
  • A floor wiring closet Ethernet switch

Key Prerequisites

Customers must have an 8260 Nways(TM) Multiprotocol Switching Hub model P10, P17, or G17 to install the Switching Modules Series.

Planned Availability Dates

December 6, 1996:

-8260 new models P17,G17,P10

January 31, 1997:

Model Conversions

Switching Modules Series -12 Ports 10BaseT -24 Ports 10BaseT -10 Ports 10BaseFB/FL -20 Ports 10BaseFB/FL -12 Ports 10BaseT, FDDI, DAS -10 Ports 10BaseFB/FL, FDDI -Dual FDDI DAS -Switching memory upgrade (8Meg) -Switching memory upgrade (16Meg)

March 28, 1997:

-4 Ports 100Base-FX -4 Ports 100Base-TX



Scalable Bandwidth: Network expansion and growing bandwidth requirements are easily managed with the Switching Modules Series. Each module uses its own ISC4000 Switching ASIC to ensure maximum bandwidth scalability. Simply add an 8260 Switching Modules Series module as your network and bandwidth needs grow. For example, the 8260 17-slot hub supports as many as 204 ports of switched Ethernet, 68 ports of Fast Ethernet, or 34 switched DAS FDDI ports to meet high-performance backbone requirements. The ISC4000 has been optimized for Multiprotocol 10/100 environments to deliver high throughput. A dedicated switching engine on each Switching Modules Series module provides scalable performance for full wire-speed forwarding on all ports. With its store-and-forward architecture, and dynamic buffering, Switching Modules Series provides full error checking and the ability to switch large data bursts without packet loss. Switching Modules Series modules are interconnected through the 8260 2 Gbps Packet Channel. The Packet Channel has been completely optimized for multiprotocol environments and supports inter-module communication of FDDI or Ethernet and future ATM migration. With Switching Modules Series modules installed, your networks will not experience bandwidth overload. 8260 Switching Modules Series-based networks have the scalable capacity to support today's and tomorrow's bandwidth needs.

High-Function Backbone Features: Switching Modules Series have a full set of capabilities that provide proactive traffic management, user access, and growth for future network requirements. These capabilities include:

  • Support for 32,000 MAC addresses for each module.

  • User-definable MAC address filters, to effectively manage network access and restrict users to specific resources.

  • Support for 64 protocol filters per module. Each filter enables the network manager to block or forward a particular protocol on user-defined groups of ports on the Switching Modules Series. All protocol filtering/forward is performed by the ISC4000 ASIC, thus ensuring wire-speed performance even with filtering enabled.

  • Support for traffic prioritization based on protocol type. This allows the network manager to support delay-sensitive protocols by assigning a "high" priority level to protocols within each module.
Virtual Networking Support: Switching Modules Series allows the user to form Layer 2-based Virtual Networks, called "Virtual Switches." Each Virtual Switch is a user-defined grouping of ports across an 8260, regardless of interface type. Virtual Switches allow network managers to effectively segment access and management of their networks. Each Virtual Switch is a complete 802.1d Spanning Tree bridge that supports its own address database, broadcast/multicast containment, and management view. Each 8260 hub can support up to 256 Virtual Switches. Virtual Switches can also be extended beyond the hub, using the future Packet-to-ATM module of the Switching Modules Series. The Packet-to-ATM module uses ATM Forum-compliant LAN Emulation to allow you to build standards-based virtual networks.

High Fault Tolerance and Reliability: Mission-critical enterprise networks require 100% reliability. The Switching Modules Series solutions for the 8260 Switching Hub are designed with no single point of failure. The 8260 hub architecture provides fault tolerance with:

  • Load-sharing power supplies
  • Redundant links
  • Power management
  • Redundant controller modules
  • Switched ports
  • Management modules
Automatic switching to the redundant components is provided to ensure high network availability. Distribution of switching capabilities throughout the system provides additional reliability. With an ISC4000 ASIC and Motorola 68040 management processor on each module, other Switching Modules Series modules continue to operate even if one Switching Modules Series module is disabled. Additionally, the 8260 Packet Channel backplane has been designed for maximum reliability by using a passive bus, female connectors, and no active components that can fail. The benefit is the delivery of maximum network availability. Additional fault-tolerant features include:
  • Support for Dynamic Side Switching

    To eliminate session loss, each module dynamically adapts to network changes by detecting when a node is moved to a different port in the system.

  • Hot-swappable modules with configuration learning

    Each module can be hot swapped into or out of an operating 8260 hub. In addition, if an identical replacement module is swapped into the hub, it learns the previously stored configuration ensuring minimum network disruption.

  • Support for the 8260 System comprehensive power management architecture

    This allows the network manager to ensure that critical network functions stay operational.

Comprehensive System Management: IBM offers the Nways Campus Manager suite of management applications for configuration, management, and monitoring of IBM networking products, available for both the NetView(R) for AIX(R) and HP OpenView environments. Along with the IBM Nways Remon Manager, Switching Modules Series offers the following capabilities:
  • Distributed RMON MIB and interface statistics support

    Each Switching Modules Series module contains a complete RMON agent that provides all nine groups on any single port. Additionally, comprehensive interface statistics are collected in real time on every port to provide a detailed view of the network's operation. Nways Manager software fully supports the configuration and monitoring of RMON and interface information, to provide a comprehensive view of network activity from a single point of control.

  • Integrated Inventory Management

    Each Switching Modules Series module contains integrated inventory information that can be accessed with a simple command or a click of a mouse button. The information provides, at a glance, revision levels of the hardware and software, memory installed, and user entered notes.

  • Roving Port Analysis for real-time nonintrusive monitoring

    Traffic on any port can be "mirrored" to any other port in the system or to the RMON probe contained within any Switching Modules Series module.

  • Full in-band and out-of-band management through the 8260 Distributed Management Module (DMM)

    The DMM provides a central point of control for managing all of the modules installed in an 8260 hub. DMM supports in-band management using SNMP or TELNET, and out-of-band management using SLIP for TELNET and SNMP and direct asynchronous terminals.

10BASE-T Solutions

Switching Modules Series offers both a high-density, dual-slot Module (24 Ports) and a moderate density, single-slot Module (12 ports) to connect 10BASE-T networks and end stations. Using RJ-45 connectors, both modules support 10 Mbps bandwidth per port and provide STP and UTP connectivity.

10BASE-FB/FL Solutions

Switching Modules Series offers both a high-density, dual-slot module (20 ports) and a moderate density, single-slot module (10 ports) to connect 10BASE-FB or 10BASE-FL networks and end stations. Both modules support 10 Mbps of bandwidth per port, utilizing multimode fiber and ST connectors. With support for cabling distances of up to 4 km, each port also automatically configures to either 10BASE-FL or 10BASE-FB.

FDDI Solutions

Switching Modules Series offers three solutions for connecting to FDDI backbones and servers. To build collapsed FDDI backbones, Switching Modules Series offers the single-slot 2-Port DAS/SAS module. To connect to copper Ethernet nodes or networks, Switching Modules Series offers a module that supports 12 10BASE-T ports and a single DAS/SAS FDDI port. To connect to fiber Ethernet nodes, Switching Modules Series offers a module that supports 10 autosensing 10BASE-FB/FL ports and a single DAS/SAS FDDI port. For FDDI connectivity, each DAS/SAS port uses MIC connectors and supports connection to an optical bypass.

100BASE-TX Solution

Switching Modules Series offers a 4-port, single-slot module, with shielded RJ45 connectors, and support 100 Mbps Ethernet over copper wiring for distances up to 100m on UTP5. It supports half and full-duplex operations and auto-negotiation between the two modes.

100BASE-FX Solution

Switching Modules Series offers a 4-port, single-slot module, with 100 Mbps of bandwidth per port, utilizing multimode fiber and ST connectors, with support for cabling distances of up to 4 km. It supports half and full-duplex operations and auto-negotiation between the two modes.

Switching Modules Memory Upgrade

The Switching Modules Series have in basic configuration 2MB memory that you can extend to 10MB or 18MB by adding on the modules a memory upgrade of respectively 8 or 16MB capacity. The table below describes the capacity for each RMON group according to the amount of memory on the module.

RMON           |
Group          |  2MB memory    10MB memory    18MB memory
Capture        | 700 packets    2000 packets   8000 packets
Buffer         | 102,400        512,000        2,621,440
               |  octets         octets         octets
Alarm Entries  | 15             50             60
Log Entries    | 200            1,500          2,800
Event Entries  | 30             100            150
Filter Entries  | 15             50             60
Channel Entries| 10             30             40
History Entries| 320            1,164          1,164
Host Entries   | 400            1,200          4,000
HostTopN       | 6              10             10
Control Entries|
Matrix Entries | 2,400          7,200          18,000

New 8260 Models and Model Conversions

The P17 (respectively P10) 8260 model, is a 17-slot (respectively 10-slot) chassis functionally equivalent to Model 017 (respectively 010) but equipped with a Packet Channel backplane on top of the 8260 LAN backplanes. All slots can be used without restriction for any LAN media module, Management module, or Switching Modules Series modules.

Model G17 is the only model that supports all existing 8260 modules, including ATM. It is functionally equivalent to Model A17 plus it provides the ability to add any Switching Modules Series module in any slot, except slots 9 through 12.

Users with 8260s already installed can convert their model and add a Packet Channel. This conversion is done from the back of the hub.


In terms of usage within a network, LAN switching products can be decomposed into the following three categories: backbone switching, workgroup switching, and desktop switching. Each category is characterized by a different design point and price/port objective.

Backbone Switching Characterization

  • High performance/high throughput. Typical aggregate throughput is several gigabits per second. This level of performance is necessary to sustain backbone traffic.

  • Scalability. The number of high speed ports can range from 50 to 60.

  • Multiple LAN and media types. Because most networks are heterogeneous, multiple media types are usually supported (copper, fiber); also multiple LAN types are usually offered (Ethernet, FDDI, ATM, Token-Ring) to simplify coexistence and migration.

  • Modularity for flexibility, growth, and maintenance.

  • High reliability and redundancy is a key feature of backbone switches.

  • Protocol filtering and virtual LAN enabling. Since many users would like to control traffic that flows over the backbone, protocol filtering and virtual LAN capabilities are usually a key function.

  • Support of several thousands of MAC addresses per interface. This is necessary due to the central position of backbone LAN switches in the network.

  • Large buffer sizes, to help reduce contentions over a single output port. This is a very common situation in the middle of a backbone with traffic flowing in all directions.

  • Imbedded network monitoring tools such as RMON agents to monitor the health of the backbone.
Workgroup Switching Characterization
  • Design point is interconnection of LAN segments of same type or speed. Uplink to higher speed LANs is usually possible (Fast Ethernet, ATM), linking the workgroup switch to the high speed backbone.

  • Aggregate throughput is usually less than one gigabit per second.

  • Large number of MAC addresses per interface is necessary because LAN segments are shared by multiple users.

  • Filtering capabilities exist, but are less sophisticated than those found on the backbone switches.

  • Limited modularity.

  • Important buffering capabilities (though smaller than those of backbone switches).

  • Imbedded RMON monitoring is possible; if not present, port mirroring is present is most cases.

  • Limited redundancy features.
Desktop Switching Characterization
  • Design point is one user per interface with dedicated bandwidth (usually 10 Mbps with copper wiring), with one high speed uplink.

  • Limited number of MAC addresses per port.

  • Usually no filtering capabilities.

  • Very limited or no modularity.

  • No redundancy.

  • Limited buffer sizes.

  • Low price/port.
In light of the above characterizations, the 8260 Switching Modules Series is an ideal fit for the "Backbone LAN Switch" category, and can also (in many circumstances) fulfill the role of a workgroup switch.

Positioning of Switching Modules Series Versus 8271 Switching Modules: Given that the 8260 offers two solutions for Ethernet switching, the Switching Modules Series and the 8271 switching modules, the two offerings are positioned as follows:

  • Switching Modules Series is a LAN solution "optimized for Ethernet 10/100 and FDDI Switching." It is a linearly scalable LAN switching solution that can start with a minimum number of ports and entry cost, and then linear addition of ports (up to 204 10BaseT ports) and cost of upgrades. It is a solution that is tightly integrated with 8260 Distributed Management Module (DMM) since all configurations of Switching Modules Series and network monitoring are done through the DMM; moreover, DMM in-band communications can be done via Switching Modules Series modules directly without the need for a media module or LAN media access card.

  • The 8271 Ethernet switching solution in the 8260, has two design points:
    1. Workgroup 10BaseT LAN switching solution into a modular platform

    2. ATM edge switch for 10BaseT workgroups
    In fact, either through the use of the frontal ATM UFC on the 8271 LAN module, or through the direct ATM backplane connectivity of the 8271 ATM/LAN module, the 8271 solution is a more cost effective than Switching Modules Series, and delivers higher throughput over the ATM interface. Because the module has the ability to add Fast Ethernet interfaces, though in limited number, it is also ideal for low-cost, limited 10BaseT, 100BaseTx/Fx, and ATM connectivity.

    Finally, the 8271 module is integrated in the 8260 environment management but the module has its own SNMP agent, and follows the 8271 architecture in terms of operations and configurations.


Packet-to-ATM Module: Users willing to build networks based on 8260 Switching Modules Series peripheral switching with a high-speed core backbone based on 8260 ATM, will be able to do so through the introduction of a 2-slot, Packet-to-ATM module that connects directly to the high-speed Packet Channel, and presents up to two frontal ATM OC3 multimode fiber interfaces. This module will run ATM Forum Compliant LAN Emulation protocols.

Switching Modules Series Network Management: Network management application and hardware modules for the IBM 8260 Switching Modules series will be fully integrated in the next versions of Nways Campus Manager (1H97 for NetView/AIX, 2H97 for HP OpenView ). Concurrent with hardware modules first availability, IBM Nways Campus Manager-LAN will be upgraded , through a PTF, to provide Vbridge management, protocol filter definition and lists of DMMs. In addition, this upgrade will provide a simple view of IBM 8260 Switching Modules Series.

8260 Model P07: The new smaller version of the 8260, 7-slot chassis, is an ideal solution for floor wiring closets where the size of the chassis is critical in congested wiring closets. The 7-slot model shares all the redundancy features of other models in terms of power supplies (maximum of two power supplies), and redundant controllers. The new 7-slot model comes equipped with the Packet Channel backplane for Switching Modules Series.

Despite its smaller size (same height and width as an 8250), the 7-slot model can link up to 258 Ethernet users or 140 Token Ring users with full management and LAN monitoring, in addition to the ability to combine media concentration modules with LAN switching modules, 827x or Switching Modules Series modules.

The announcement of the Packet-to-ATM converter module is based on IBM's business and technical judgement. All information being released represents IBM's current intent, is subject to change or withdrawal and represents only goals and objectives.

  • Planned Availability Date: first half 1997
The announcement of the 8260 P07 model is based on IBM's business and technical judgement. All information being released represents IBM's current intent, is subject to change or withdrawal and represents only goals and objectives.
  • Planned Availability Date: first quarter 1997


The appropriate curriculum will be updated, as necessary, to include the enhancements of this announcement.

Description of all self-study and classroom courses are contained in the IBM education catalogs.

Call IBM Education and Training at 800-IBM-TEACH (426-8322) for education catalogs, schedules and enrollments.


The following hardcopy publication is shipped with the modules.

Title                                             Number

8260 Switching Modules User's Guide SA33-0409

The following publications are available. To order, contact your IBM representative.

Title                              Number         Language

8260 Switching Hub Installation SA33-0251 English and Operation Guide 8250/8260/8285 Planning and GA33-0285 English Site Preparation Guide 8260 Product Description GA33-0315 English


Specified Operating Environment

Operating Environment

Modules Specifications

Temperature: 0(degs) to 50(degs)C Relative Humidity: 8% to 85% (non-condensing)

Hardware Requirements: An ASCII type terminal is required for initial configuration of the 8260 ATM subsystem ; this terminal is not needed subsequently.

Customers should provide IBM service personnel with either

  • an ASCII terminal (IBM 3151 with VT100 Emulation or equivalent)

  • a PC/PS with VT100 Emulation (PS/2(R) Model 80 with VT100 Emulation under OS/2(R), for instance).
In normal operation mode, the IBM 8260 will not utilize the ASCII terminal. If the customer has a TCP/IP terminal available in the LAN, this terminal can handle the function of the ASCII terminal.

Instead of the above remote access to the 8260, remote access to a RS/6000(TM) in the network, with the programs described in the Software Requirements section, could provide the enhanced serviceability to the IBM 8260 Multiprotocol Switching Hub.

ATM Implementation Services: IBM offers consulting and services to help you pursue the extensive opportunities Asynchronous Transfer Mode (ATM) technology offers. Whether addressing an individual need or integrating to create a total solution, IBM provides the expertise you need to migrate to ATM technology.

With ATM implementation services, IBM converts your network plan and design into operational reality.

IBM offers a complete range of implementation services for wide area and campus ATM environments ranging from customized individual services to complete turn-key solutions. Implementation and customization services include:

  • Hardware and software migration planning
  • Validation of proposed ATM logical and physical infrastructure designs
  • Creation of "component designs" based on validated logical designs
  • Development of installation and customization plans for hardware and software
  • Installation and customization of hardware and software at the customer site
  • Education and training
If you require a turn-key solution, IBM offers complete installation and project management including bid process assistance and project supervision.

ATM implementation services are available for the following IBM products:


  • Nways Switch family hardware
  • Nways Switch software
  • Nways Switch Manager software
  • 8260 ATM Subsystem
  • 8282 ATM Concentrator
  • 8281 ATM LAN Bridge
  • ATM Campus Manager for AIX, with Hub Manager for AIX, on NetView for AIX
  • ATM 100- and 25-Mbs TURBOWAYS(TM) adapters
IBM also offers other IBM ATM consulting and services for planning, designing and operating ATM networks:
  • With ATM planning consulting and services, IBM helps you develop a network plan to meet your enterprise-wide needs and identify the appropriate network, topology, and management requirements, while assessing the effects and benefits of ATM.

  • With ATM design services, IBM helps you validate your proposed network plan for capacity, performance, availability, and interoperability. Next, IBM will help you develop a logical and physical design that facilitates the configuration, selection, and location of the ATM network components.

  • To assist you in the operation of your installed ATM network, IBM offers support services providing technical and operational assistance. IBM also provides a variety of network outsourcing services, which incorporate ATM technology.
To learn more about how IBM can help you implement ATM technology, contact your IBM representative, call 800-426-5148, or send an e-mail to:
IBM may change or withdraw the services referenced in this section at any time, without advance notice.

Software Requirements: No mandatory software is required to operate the 8260 hub. However it is recommended that customers install the following:

  • The last microcode versions for the DMM and the ATM Control-Point/ Switch Module (A-CPSW) to have all the recently 8260 products announced recognized by the code.

  • The last Controller code update to have all power supplies recognized for power calculation,
8260 Microcode Distribution on the Web: A new service is available from Internet. The last microcode updates of ATM and non-ATM 8260 Modules can be obtained from the Internet. To access the 8260 Web Pages, enter:
or sequentially select:
  1. The IBM Networking Home Page (URL
  2. Products Offerings
  3. Hardware Product Offerings
  4. 8260 Nways Multiprotocol Switching Hub
  5. 8260 Microcode Upgrades (in the Software and Service section)
Then you get a list of all available 8260 modules with their feature code. A zipped file containing the microcode upgrade with the associated Installation Instructions and Release Note can be downloaded. You can go directly to step 4 by entering:
The following upgrade packages are available:
  • ATM Control Point and Switch Module (#5000)
  • ATM Control Point and Switch Module (#5100)
  • Distributed Management Modules (#1000 & #1100)
  • TR and Ethernet MAC Cards (#8913 & #8918)
  • TR Media Modules (#3010 & #3020 & #3018 & #3118)
  • Fault-Tolerant Controller Module (#8000)
  • Ethernet 24-Port 10BASE-T Module (#1024)
  • Ethernet 10-Port 10BASE-FB Modules (#1110 & #1210 & #1310)
  • Ethernet Security Card (#8915)
  • Ethernet Flexible Concentration Module (#1004)
  • ATM Media Modules (#5004, #5104, #5002)
  • 8281 ATM LAN bridge (#5204)
8260 MIB Installation: In case of management from an SNMP management station, the 8260 MIB should be installed, to fully benefit from the 8260 SNMP-compliant management information base (MIB) extensions for ATM operations. The latest version of the 8260 MIB can be obtained from a public Internet library using the following steps:
  • FTP to ""
  • Enter the login name "anonymous"
  • Enter your full Internet e-mail address as the password
  • Change to the MIB directory using the "cd pub/products/lanprods/hub" command
  • List the contents of the directory using the "ls -l" command and use CTRL-S to pause the display to view the available IBM entries. Use Ctrl-Q to continue the display
  • Copy the IBM MIB files to your current directory using the appropriate command "get 8260.mib"
  • To exit FTP session, use the "quit" command
If access to Internet is not available, please contact your IBM representative for assistance.

Network Management Applications: Management of the 8260 networks including ATM can be significantly improved with the following Program Products:

Title                         PID            Number

Under NetView for AIX Nways Campus Manager LAN for AIX 5765-A15 84H0032 (8 mm) 84H0033 ( 1/4) Nways Campus Manager ATM for AIX 5765-609 31H7063 (8 mm) 31H7064 ( 1/4) Under NetView for Windows+ Nways Manager for Windows 5622-839 31H6996

Under HP OpenView for UNIX(1) Nways Campus Manager LAN for HP 5765-598 33H9562 Nways Campus Manager ATM for HP 5765-599 33H9563

Under DOS/Windows IHMP/DOS Entry V2 5697-163 80G4102

These products provide a new topology display, an easy to use graphical interface, resources configuration, statistics display and other value-add functions for management of ATM networks.

Out-of-Band Download: In case of code downloading to 8260 upgradeable Modules through the local console port (out-of-band download), the 8260 Universal Code Download kit should be ordered. This kit is not needed when performing in-band file transfer.

Compatibility: The 8260 can be attached to the S/390(R) Open Systems Adapter 2 (OSA-2), a feature on the S/390 Parallel Enterprise Server Models R2 and R3, the S/390 G3 Enterprise Server, and the S/390 Multiprise 2000. The OSA-2 feature support connectivity to Ethernet, Token-Ring, FDDI, and ATM (155 Mbps ATM Forum-Compliant LAN Emulation) LANs.

Limitations: The Switching Modules Series will be supported by Distributed Management code (DMM), Version 4.1.

Planning Information

Cable Orders: All cables to install the LAN network must be ordered separately.

Every IBM Nways 8260 hub is shipped with:

  • One DTE patch cable
  • An interposer
  • One gender convertor to connect, through the local port of a management or interconnect modules, an ASCII terminal or a Personal Computer.
The cable and the adapters delivered, can also be used for connecting the ASCII terminal to the local console port of the ATM Switch/Control Point Module.

Installability: Model conversions must be installed by IBM service personnel only. The installation time needed for a model conversion is about 50 minutes.

Accessories and/or Supplies: No accessories or supplies are needed for these products.

Shipping Group Description

8260 Model P10

  • Hub Chassis With Packet Channel Backplane
  • One Filler plate for Controller Module slot
  • One AC power cord
  • Three blank dual slot filler plates
  • Two blank single slot filler plates
  • One bay cover panel for power supplies
  • One rubber feet kit
  • One cable management tray
  • One rack mount kit
  • One DB9/DB25 RS232 DTE/DCE modem attachment cable
  • One Interposer Null Modem
  • One Interposer (gender convertor)
  • DB25 to DB9 connector convertor
  • 8260 Installation & Operation Guide (English)
  • Safety Handbook
  • Reference Library/Planning Chart & Binder
8260 Model P17
  • Hub Chassis With Packet Channel Backplane
  • One Filler plate for Controller Module slot
  • One AC power cord
  • Six blank dual slot filler plates
  • Three blank single slot filler plates
  • One bay cover panel for power supplies
  • One rubber feet kit
  • One cable management tray
  • One rack mount kit
  • One DB9/DB25 RS232 DTE/DCE modem attachment cable
  • One Interposer Null Modem
  • One Interposer (gender convertor)
  • DB25 to DB9 connector convertor
  • 8260 Installation & Operation Guide (English)
  • Safety Handbook
  • Reference Library/Planning Chart & Binder
8260 Model G17
  • Hub Chassis With Packet Channel/ATM Backplane
  • One Filler plate for Controller Module slot
  • One AC power cord
  • Six blank dual slot filler plates
  • Three blank single slot filler plates
  • One bay cover panel for power supplies
  • One rubber feet kit
  • One cable management tray
  • One rack mount kit
  • One DB9/DB25 RS232 DTE/DCE modem attachment cable
  • One Interposer Null Modem
  • One Interposer (gender convertor)
  • DB25 to DB9 connector convertor
  • 8260 Installation & Operation Guide (English)
  • Safety Handbook
  • Reference Library/Planning Chart & Binder

Security, Auditability, and Control

User management is responsible for evaluation, selection, and implementation of security features, administrative procedures, and appropriate controls in application systems and communications facilities.


This product is available for purchase under the terms of the IBM Customer Agreement.

IBM hardware products are manufactured from new parts, or new and used parts. In some cases, the hardware product may not be new and may have been previously installed. Regardless, IBM's warranty terms apply.

Volume Orders: For information regarding volume orders, contact your IBM representative.

IBM Credit Corporation Financing: Term leases and installment payment plans are available for commercial and state and local government customers.

Warranty Period: One year

Warranty Service: IBM On-Site Repair (IOR)

Maintenance Service: IOR

IBM Hourly Service Rate Classification: Two

IBM warranty service, maintenance service or IBM hourly service may be obtained by calling 800-IBM-SERV (426-7378). IBM hourly service is available at the applicable rate and terms, including element exchange price if applicable.

Mid-Range System Option: These products are eligible machines for the Mid-Range System Option of the IBM Customer Agreement. A revised exhibit will be available at a later date.

Eligible                       Discount
Types                Three-Year         Five-Year

8260 12% 17%

Corporate Service Option: These products are eligible machines for the corporate service option of the IBM Customer Agreement. A revised exhibit will be available at a later date.

                     Three-Year         Five-Year

Network 12% 17%

Extended Maintenance Option: The announced product is an eligible machine under the extended maintenance option of the IBM Customer Agreement.

When a type of service involves the exchange of a machine or part, the replacement may not be new, but will be in good working order.

Product Availability Status: New product available.

Field Installable Features: Yes

Model Conversions: Yes

Customer Setup: Yes, except model conversions.

Licensed Internal Code: No

Educational Allowance: A reduced charge is available to qualified education customers. The educational allowance may not be added to any other discount or allowance.


Description         Type

8260 Minimum Maintenance Model Feature Purchase Charge Number Number Price Annual

New Models

17-slot with Packet Channel P17 $ 8,440 $5,900 17-slot with Packet Channel G17 9,490 5,900 & ATM Backplane 10-slot with Packet Channel P10 6,550 3,970

Models Conversion 010 to P10 010 3,570 017 to P17 017 4,200 017 to G17 017 5,250 A17 to G17 A17 1,500*

Switching Modules Series

12 Ports 10BaseT P17/G17 /P10 7312 7,345 1,105 24 Ports 10BaseT P17/G17 /P10 7324 11,335 1,700 10 Ports 10BaseFB/FL P17/G17 /P10 7310 10,495 1,575 20 Ports 10BaseFB/FL P17/G17 /P10 7320 18,895 2,835 12 Ports 10BaseT, FDDI DAS P17/G17 /P10 7314 10,495 1,575 10 Ports 10BaseFB/FL, FDDI P17/G17 /P10 7412 14,170 2,125 Dual FDDI DAS P17/G17 /P10 7304 11,125 1,670 4 Ports 100Base-FX P17/G17 /P10 7404 7,135 1,145 4 Ports 100Base-TX P17/G17 /P10 7504 3,500 640

Memory Upgrades for Switching Modules Series

Sw.modules memory upgrade (8MB) P17/G17 /P10 8968 835 Sw.modules memory upgrade (16MB) P17/G17 /P10 8976 1,675

*     If field installed on a purchased machine, parts removed or
      replaced become the property of IBM and must be returned.

(TM)  Trademark of International Business Machines Corporation in the
      United States or other countries or both.
(R)   Registered trademark of International Business Machines
      Corporation in the United States or other countries or both.
+     Registered trademark of Microsoft Corporation
(1)   Registered trademark in the United States and other countries
      licensed exclusively through X/Open Company Limited.


Customized Operational Services

To complement this announcement, IBM Customized Operational Services (COS) offers Multiprotocol Intelligent Hub customers a variety of related networking services. From a single Uninterruptible Power Supply (UPS) to a complete network design and installation, COS can provide a customized solution supporting the operational needs of a multiprotocol networking environment.

Customer Solution Centers (CSCs) can provide product module installation, testing and preloading of customer software. IBM hubs and other equipment, configured by any of the seven CSCs in the United States, can then be shipped to multiple locations world-wide for simultaneous installation.

COS Connectivity Services offers both logical and physical design of multiprotocol networks to meet customer requirements for performance, migration and integration. All physical cabling designs are EIA/TIA compliant and provide cost-effective connections -- to link hubs and servers in the telecommunications closet, to PC workstations across a campus, to an enterprise super-server at corporate headquarters. With industry standard cabling solutions, IBM can position a network for future growth and higher bandwidth requirements -- using optical fiber or copper, shielded or unshielded twisted pair wire. IBM network designs, logical and physical, can anticipate further integration of intelligent hubs, address current and future information technologies, allow collapsed backbones for network management and security, foresee network performance bottlenecks and provide for future expansion.

With a customized design, detailed specifications for a network can be submitted for bid, or IBM's experienced project managers can provide a turnkey installation of the network. Once a network is installed, there are cable management software packages to provide data base management for small and large LANs, protecting and allowing management of network connectivity.

Because the IBM 8260 Multiprotocol Intelligent Hubs are a critical network interface, COS Environment Equipment Services can provide the expertise and equipment necessary to prevent productivity losses caused by environmental problems. An uninterruptible power system (UPS) can protect sensitive equipment from power disturbances and surge protectors are available to control voltage over communication links. IBM project managers can evaluate and advise appropriate measures and services to ensure problem free operations.

To find out more about COS and other IBM services, contact your local IBM representative.