IBM 8265 Nways ATM Switch Technical specifications

8265 Nways ATM Switch
Product Description
GA33-0449-02
IBM

8265 Nways ATM Switch
Product Description
GA33-0449-02
IBM

Note!
Before using this information and the product it supports, be sure to read the general information under
Notices on page 73.
Third Edition (January 1998)
The information contained in this manual is subject to change from time to time. Any such changes will be reported in
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© Copyright IBM Corp. 1994, 1998 iii
Contents
Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
About This Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Who Should Use This Book. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
How to Use This Book. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Prerequisite Knowledge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Where to Find More Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Chapter 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
8265 Switch Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Switch Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Internetworking Technology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Support for All ATM Classes of Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Advanced Traffic Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Intelligent Power Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Support for 8260 ATM Media Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Intelligent Cooling Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Power Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Multiple Front Panel and Backplane Interface Options . . . . . . . . . . . . . . . . . . . . . 3
ATM Backplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Understanding 8265 Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Chassis Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Network Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Traffic Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Managing Code Updates. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Configuration Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Network Access Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Chapter 2. Features and Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Base Product. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Additional Required Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Controller Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Control Point and Switch Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
PCMCIA Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Media Modules and Daughter Cards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Optional Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Additional Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Universal Code Download Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Cable Management Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Rack Mount Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Chapter 3. Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Controller Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Control Point and Switch Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
CPSW Module Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Control Plane. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

iv IBM 8265: Product Description
User Plane (Hardware) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Management Plane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
SNMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Connection Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Media Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
ATM Carrier Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4-Port 155Mbps Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
622Mbps Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4-Port 100Mbps Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
12-Port 25Mbps Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
WAN 2 Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Multiprotocol Switched Services (MSS) Server Module . . . . . . . . . . . . . . . . . . . 38
Video Distribution Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
ATM/Ethernet LAN Switch Modules (8271) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
ATM/Token-Ring LAN Switch Modules (8272). . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Receiving Code Updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Upgrading ATM Microcode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Appendix A. Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Physical Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Environment Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Power and Electrical Wiring Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
AC Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
DC Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Ventilation Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Lightning Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Magnetic Compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Electrostatic Discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Appendix B. Module Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Controller Module (Feature Code 8000). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Control Point and Switch Module (Feature Code 6501). . . . . . . . . . . . . . . . . . . . . . 51
155Mbps Module (Feature Code 6540) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
155Mbps Module (Feature Code 6543) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Daughter Cards for 4-Port 155Mbps Flex Modules (Feature Code 6543) . . . . . . 53
622Mbps Module (Feature Code 6511) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
622Mbps Module (Feature Code 6512) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
4-Port Fiber 100Mbps Module (Feature Code 5104) . . . . . . . . . . . . . . . . . . . . . . . . 56
12-Port 25Mbps Concentration Module (Feature Code 5012). . . . . . . . . . . . . . . . . 56
Daughter Card for 12-Port 25Mbps Concentration Module . . . . . . . . . . . . . . . . . 56
WAN 2 Module (Feature Code 5602). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Daughter Cards for WAN 2 Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Carrier Module (Feature Codes 5102) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Multiprotocol Switched Services Server Module (Feature Code 5300) . . . . . . . . . . 60
Video Distribution Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
8271 ATM/Ethernet LAN Switch Module (Feature Code 5212) . . . . . . . . . . . . . . . . 61
8271 ATM/Ethernet LAN Switch Module (Feature Code 5312) . . . . . . . . . . . . . . . . 61
Universal Feature Cards for 8271 LAN Switch Modules . . . . . . . . . . . . . . . . . . . 62
8272 ATM/Token-Ring LAN Switch Module (Feature Code 5208) . . . . . . . . . . . . . . 65
8272 ATM/Token-Ring LAN Switch Module (Feature Code 5308) . . . . . . . . . . . . . . 65
Universal Feature Cards for 8272 LAN Switch Modules . . . . . . . . . . . . . . . . . . . 66
Appendix C. Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
8265 Modules and Daughter Cards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Contents v
Appendix D. Supported 8260 ATM Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Appendix E. Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Product Page/Warranties. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
General Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Safety Notice for United Kingdom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Industry Standards Reflected in This Product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
CE European Community Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Electronic Emission Notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Radio Frequency Interference (RFI) Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Trademarks and Service Marks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Bibliography. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Related Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

vi IBM 8265: Product Description

© Copyright IBM Corp. 1994, 1998 vii
Figures
Figure 1. Front View of the IBM 8265 . . . . . . . . . . . . . . . . . . . . . 1
Figure 2. Rear View of the IBM 8265 . . . . . . . . . . . . . . . . . . . . . 3
Figure 3. Star-Wiring Topology in ATM Backplane . . . . . . . . . . . . . . . . 4
Figure 4. 8265 with Components Installed . . . . . . . . . . . . . . . . . . . 15
Figure 5. Controller Module Faceplate . . . . . . . . . . . . . . . . . . . . 17
Figure 6. CPSW Module Faceplate . . . . . . . . . . . . . . . . . . . . . 18
Figure 7. ATM Carrier Module . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 8. 4-port 155Mbps Module Faceplate . . . . . . . . . . . . . . . . . . 29
Figure 9. 622Mbps Module Faceplate . . . . . . . . . . . . . . . . . . . . 31
Figure 10. 4-port 100Mbps Module Faceplate . . . . . . . . . . . . . . . . . . 33
Figure 11. 12-Port 25Mbps Module Faceplate . . . . . . . . . . . . . . . . . . 35
Figure 12. WAN 2 Module Faceplate . . . . . . . . . . . . . . . . . . . . . 37
Figure 13. MSS Server Module Faceplate . . . . . . . . . . . . . . . . . . . 39
Figure 14. Video Distribution Module Faceplate . . . . . . . . . . . . . . . . . 41
Figure 15. 8271 Ethernet LAN Switching Module Faceplates . . . . . . . . . . . . 43
Figure 16. 8272 Token-Ring LAN Switching Module Faceplates . . . . . . . . . . . 45
Figure 17. Microcode Upgrade Procedures . . . . . . . . . . . . . . . . . . . 46
Figure 18. 155Mbps Module Fiber Daughter Card . . . . . . . . . . . . . . . . 53
Figure 19. 155Mbps Module UTP/STP Daughter Card . . . . . . . . . . . . . . 54
Figure 20. WAN Module DS3/E3 Daughter Card . . . . . . . . . . . . . . . . . 57
Figure 21. WAN Module OC3/STM-1 Daughter Card . . . . . . . . . . . . . . . 59
Figure 22. 4-port Ethernet 10BASE-T UFC . . . . . . . . . . . . . . . . . . . 62
Figure 23. 3-Port Ethernet 10BASE-FL UFC . . . . . . . . . . . . . . . . . . 62
Figure 24. 1-port Ethernet 100BASE-Tx UFC . . . . . . . . . . . . . . . . . . 63
Figure 25. 1-Port Ethernet 100BASE-Fx UFC . . . . . . . . . . . . . . . . . . 63
Figure 26. 4-Port Token-Ring UTP/STP UFC . . . . . . . . . . . . . . . . . . 66
Figure 27. 2-Port Token-Ring Fiber UFC . . . . . . . . . . . . . . . . . . . . 66

viii IBM 8265: Product Description

© Copyright IBM Corp. 1994, 1998 ix
Tables
Table 1. Network Management Programs . . . . . . . . . . . . . . . . . . . 6
Table 2. Power Capacity at +5.2 Volts (AC Power Supplies). . . . . . . . . . . . 12
Table 3. Power Capacity at +5.2 Volts (DC Power Supplies). . . . . . . . . . . . 12
Table 4. AC Power Cord Plugs for Each Country . . . . . . . . . . . . . . . . 13
Table 5. ATM Connections Supported in 8265 Switches . . . . . . . . . . . . . 22
Table 6. Available Media Modules . . . . . . . . . . . . . . . . . . . . . . 24
Table 7. Media Module Daughter Cards. . . . . . . . . . . . . . . . . . . . 25
Table 8. Media Module Universal Feature Cards . . . . . . . . . . . . . . . . 26
Table 9. Maximum Distances for Valid ATM Connections . . . . . . . . . . . . . 30
Table 10. 8265 Weight and Dimensions . . . . . . . . . . . . . . . . . . . . 47
Table 11. 8265 Operating Conditions . . . . . . . . . . . . . . . . . . . . . 48
Table 12. Maximum Inrush Current per 415 W Power Supply. . . . . . . . . . . . 48
Table 13. Site Power Requirement Recommendations . . . . . . . . . . . . . . 48
Table 14. Leakage Current With Four 415 W Power Supplies. . . . . . . . . . . . 49
Table 15. 8265 Module and Daughter Card Power Consumption . . . . . . . . . . 69
Table 16. Minimum FPGA Levels Required for 8260 ATM Modules . . . . . . . . . 72
Table 17. Related Publications. . . . . . . . . . . . . . . . . . . . . . . . 79

xIBM 8265: Product Description

© Copyright IBM Corp. 1994, 1998 xi
About This Book
This book gives a description of the IBM 8265 Nways® ATM Switch, its components,
functions, and accessories. It also describes the characteristics, specifications, and
power requirements of modules and daughter cards that can be installed.
Who Should Use This Book
This book is intended for the following people at your site:
•Customers
•Network Designer
•Network Administrator
•IBM Field (Sales Support) and Marketing personnel.
How to Use This Book
This book is divided into the following chapters and appendixes:
Chapter 1 describes how the 8265 switch operates, and the network
management environment for the switch.
Chapter 2 describes the basic and optional components, functions, and
accessories for the 8265 switch.
Chapter 3 describes the media modules that can be used with the 8265 switch
and the procedures for receiving and loading code updates.
Appendix A gives the specifications of the 8265 switch.
Appendix B gives the specifications and feature codes of the ATM modules and
I/O cards that can be installed.
Appendix C lists the power consumption requirements for modules and I/O cards
that can be installed.
Appendix D lists the 8260 ATM modules and daughter cards that can be installed
in the 8265.
Appendix E contains various notices related to this product.
Prerequisite Knowledge
This book assumes that you are familiar with ATM networks and network
management.
Where to Find More Information
Refer to the “Bibliography” on page 79 for a list of IBM manuals that contain related
information and publications for the 8265 switch.
Information is also available via the Internet, at URL:
http://www.networking.ibm.com

xii IBM 8265: Product Description

© Copyright IBM Corp. 1994, 1998 1
Chapter 1. Introduction Part 0
8265 Switch Overview
The IBM 8265 Nways ATM Switch is a modular chassis that provides high flexibility in
designing and configuring ATM networks.
The IBM 8265 is fully compatible with existing IBM 8260- and IBM 8285-based ATM
networks, and allows the installation of 8265 and 8260 ATM media modules.
The IBM 8265 can be used as a building switch to provide native ATM/LAN switching,
or as a backbone switch to provide:
•Media speed switching capacity
•Integrated bridging and routing
•Integrated LAN emulation client
•High call set-up rate
•Up to 16 000 bi-directional virtual connections (32 000 uni-directional)
•Up to 512 virtual path connections
•PBX attachment via multiple T1/E1 interfaces
•Switched LAN ports for LAN attached servers
•WAN feeder ports (T1/E1, DS3/E3, OC-3, and STM-1)
•OC-12 ports (formally known as STS-12c or STM-4c) for inter-building
connections (up to 14)
•OC-3 ports to attach floor switches and servers (up to 56)
•Support of ATM Forum interfaces and qualities of service
•Conformance to PNN-I standards, all UNI levels
•High availability and hot-plugging of components.
Figure 1.
Front View of the IBM 8265

2IBM 8265: Product Description
Switch Characteristics
The IBM 8265 Nways ATM Switch has the following characteristics:
Internetworking Technology
8265 internetworking solutions provide connectivity between internal networks, and
connectivity from internal networks to ATM and WAN backbones. The internetworking
capabilities of the 8265 system combine with the flexibility of port-switching media
modules to deliver bandwidth on demand for existing LANs.
Support for All ATM Classes of Service
Constant Bit Rate, Variable Bit Rate, Available Bit Rate, and Unspecified Bit Rate
classes of service are supported.
Advanced Traffic Management
Traffic shaping at Virtual Path (VP) level, statistics at connection level, traffic policy,
and port mirroring are provided.
Intelligent Power Subsystem
The 8265 power subsystem provides easy access to load-sharing power supplies,
high power availability, and controller-based power verification features designed to
ensure optimal performance. The power supplies are installed from the front of the
switch, and are easily accessible.
•Load-sharing power supplies
The 8265 is powered by load-sharing power supplies. By evenly distributing
power consumption among all supplies installed in the switch, the load-sharing
design of the switch ensures that there is no single point of failure in the power
subsystem.
•Hot swappable power supplies
The 8265 power supplies are hot swappable. You do not have to power off the
switch to install or remove them. Rather, you just plug the new power supply in
and it automatically assumes its share of the power load.
•High power capacity
When the 8265 switch runs in non-fault tolerant mode with full power capacity
(four power supplies), its power supplies deliver up to 1500 watts of power.
When the 8265 switch runs in fault-tolerant mode with full power capacity, up to
1100 watts of power is supplied to the installed modules. If a power supply fails,
the power delivered by the remaining power supplies is sufficient to keep the
switch and all installed modules running.
•Controller-managed power consumption
The 8265 Fault Tolerant Controller Module polls each new module installed in the
switch to confirm that the new module’s power requirements can be fully satisfied.
If enough power is available, the new module will power on. If available power is
inadequate, the new module will not be permitted to power on.
In addition, you can assign a power priority level to modules that determines
whether a module is to be powered off when a power supply failure causes switch
power to drop below the minimum level required to run all installed modules. This
function allows you to specify the modules that will continue to run in case of a
power deficit in the switch.

Chapter 1. Introduction 3
Support for 8260 ATM Media Modules
Certain 8260 ATM media modules can be installed in slots 1, 3, 5, and 7 of the
8265. Refer to page 71 for a list of supported modules.
Intelligent Cooling Subsystem
The 8265’s cooling subsystem protects the switch, installed modules, and
configuration information, from damage or loss that could result from a
heat-related failure of the switch or a module.
Figure 2 shows the rear view of the 8265.
Power Management The ControlPointand Switch (CPSW) module works with the Controller module to
protect network integrity using power management. The CPSW module manages
power usage in the switch, allowing you to prioritize how modules power off (when
there is insufficient power available), and preventing newly-installed modules from
receiving power when there is no power available.
There is, in addition, a function that allows you to implement fault tolerant power.
This allows the switch to reserve some of its power capacity to protect against a
power supply failure.
Multiple Front Panel and Backplane Interface Options
Interface options on both the front panel and the backplane of the 8265 allow you
to connect a greater number of external segments than you could connect using
conventional internetworking hardware.
Figure 2. Rear View of the IBM 8265
Ventilation
Grille
Fan
Units

4IBM 8265: Product Description
ATM Backplane
All data transmitted between modules in the ATM subsystem passes through the ATM
backplane. Data is switched between media modules in the ATM subsystem by a
Control Point and Switch (CPSW) module. CPSW modules are installed in slot
positions 9 and 10 or 11 and 12 in the 8265 switch (see Figure 3 on page 4).
Each media module has a dedicated set of connections to the CPSW module. This
set of dedicated connections constitutes a star-wiring topology in which the media
modules are at the tips of the star and the CPSW module at the center. The wiring
topology used in the ATM backplane is shown in Figure 3.
The main characteristics of the ATM backplane are as follows:
•Modular structure
•Full floating media modules
•Support of two CPSW switch modules for reliability and redundancy.
You can install a media module in slots 1 to 8 and 12 to 17, but not in slots 9 to 11
(slots 9-12 are reserved for CPSW modules1.) Certain media modules can only be
installed in slots 1, 3, 5, and 7. See page 24 to determine which modules can be
installed in which slots.
8260 ATM modules can only be installed in slots 1, 3, 5, and 7.
After installing the module, you must configure it for operation by entering a series of
commands from the CPSW module console.
1. You cannot install a media module in slot 12 if a CPSW module is installed in slots 11-12.
Figure 3. Star-Wiring Topology in ATM Backplane
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
Fan Area
Serial interface linking
two CPSW modules.
Slot positions for
CPSW modules:
9-10 and/or 11-12.
Slot positions for
media modules:
1 to 8 and 12 to 17.

Chapter 1. Introduction 5
Understanding 8265 Management
The management of the 8265 is achieved in four areas:
•Chassis Management
•Network Management
•Traffic Management
•Code Management.
Chassis Management
The 8265’s controller module provides management of the power and cooling
subsystems. The 8265 has one controller module as standard, and a second
controller module can be installed as a backup in case of failure.
Network Management
You can manage the ATM subsystem in any of the following ways:
•From an ASCII terminal with a character-based command line interface that is
directly connected to the RS-232 console port or RJ-45 Ethernet port on the
control point and switch module.
•By remotely logging in to the control point console using TELNET. Management
traffic flows via the network.
•From a network management station running a network management application
that supports Simple Network Management Protocol (SNMP) protocols and the
8265 SNMP-compliant Management Information Base (MIB) extensions.
•Via the Internet. The 8265 features an integrated web server that provides a
graphical view of the chassis and components, with easy navigation. Basic
configuration functions (isolate and connect modules, enable and disable
interfaces) are possible along with basic display functions. Debugging facilities
include the ability to set up and display traces, display the error log, and display
the connection table. A TELNET link to the Control Point is also provided.
SNMP Support
In a campus environment managed by SNMP, the 8265’s control point and switch
module acts as a SNMP agent allowing you to configure all ATM modules installed in
the switch using SNMP. The SNMP agent implements the ATM MIB defined in the
UNI (V3.0, 3.1, and 4.0) and ILMI (V4.0) specifications of the ATM Forum. The
following MIBs are available for network management:
•MIB-II Evolution (RFC 1573), defined to model network interfaces
•ATM Supplemental MIB (draft-ietf-atommib-atm2), an extension of the AToMMIB,
mainly covering SVC management
•AToMMIB and LAN Emulation MIBs
•ATM Forum PNNI MIB extension, which allows the creation, deletion, and
management of soft-PVCs in relation to the AToMMIB tables
•WAN MIBs:
– E1/T1 (RFC 1406)
– E3/DS3 (RFC 1407)
– SONET (RFC 1595)
•ATM Forum PNNI MIB, for PNNI management

6IBM 8265: Product Description
Statistics
Counters are provided to:
•Control traffic or policy violations on a per-connection basis
•Monitor throughput at the switch or module level
•Detect congestion
•Track CPU and buffer initialization.
Summary files are used to collect and record statistical information over long periods
of time (typically on a daily, weekly, or monthly basis).
Network Management Programs
The management of 8265 ATM networks can be significantly improved with the
following program products, which provide a topologicaldisplay, easy-to-use graphical
interface, resource configuration, statistics display, and other functions.
Contact your IBM representative for information on the latest versions of these, and
other, network management programs for the 8265.
Traffic Management
The 8265 advanced traffic management functions are distributed on each 8265
module. The key functions are:
•Priority queues per Quality of Service:
– Constant Bit Rate (CBR)
– Variable Bit Rate (VBR)
– Available Bit Rate (ABR), with Minimum Cell Rate value and relative rate flow
– Unspecified Bit Rate (UBR).
•Early and Partial Packet Discard:
This functions allow the 8265 to drop, when required (for example due to traffic
congestion), cells belonging to the same end user packet.
•Policing per Virtual Circuit:
The 8265 ensures that the contract is respected at the Virtual Circuit (VC) level,
and drops cells over contract is required. To reduce the burstiness of traffic, a
reshaping function is provided.
Table 1. Network Management Programs
Platform Product Program
Number Part Number
NetView®for AIX®IBM Nways Manager for AIX
Version 1, Release 1
with the access key:
Nways Campus Manager ATM
Version 2, Release 2
— 4304028
4304041
HP OpenView for
UNIX®Nways Campus Manager ATM for HP-UX
Version 2 5697-B12