Fully configurable Token-Ring LAN switch at a
competitive cost
IBM 8270 Nways LAN Switch Family
Highlights
• Flexible enough to meet your
exact needs
• Layer 3 switching
• Multiprotocol support
• Full-duplex (bi-directional)
communication
• ATM uplinks
• Three new MSS Universal Feature
Cards
New model
A new member has been added to the
IBM 8270 Nways
Token-Ring LAN switches. The new
Model 600 joins the Model 800, providing
a smaller, entry configuration (six slots).
Both models allow flexible configuration
with rich functionality provided by the
common set of Universal Feature Cards
they share. Similar to the Model 800, a
typical network would benefit from the
Model 600 by having each of its highvolume servers placed on dedicated
full-duplex segments and having client
workstations placed on shared segments using standard Token-Ring
concentrators such as the IBM 8239
Token-Ring Hub.
New features
Two new UFCs extend MSS forwarding
and routing services to the 8270 Nways
LAN Switch Family. Both the MSS Client
®
LAN Switch family of
and MSS Domain Client Universal
Feature Cards (UFCs) provide forwarding and routing services. The MSS Client
also has an integrated ATM port and
provides ATM-to-LAN port bridging.
These client-function products complete
the MSS client/server family and allow
the MSS Server products to perform their
job in the network at maximum efficiency.
Along with virtual LAN (VLAN) support by
protocol, OSI Layer 2 and 3 forwarding of
IP, IPX, AppleTalk and Banyan VINES
protocols are provided.
Cost-effective Token-Ring
switching
The IBM 8270 Nways Token-Ring LAN
Switch provides a cost-effective solution
to Token-Ring LAN performance
requirements. With a minimum of
disruption to existing networks, you can
significantly address LAN performance.
IBM 8270 Nways Token-Ring Switch
Model 600
IBM 8270 Nways Token-Ring Switch
Model 800
A powerful LAN switch
With the 8270 you can build large
switched networks with high-speed
uplinks. A redundant power supply is
available to help ensure continuous
operation.
You can configure the versatile, modular
8270 LAN switch to:
• Add from 4 to 30 ports to your network
configuration, more ports per switch than
any other model.
• Install uplink UFCs to connect native
protocols to high-speed links like highspeed Token Ring, ATM or the IBM 8260
Nways Multiprotocol Switching Hub.
Available UFCs include:
• 4-Port Token-Ring Enhanced UTP/STP
• 2-Port Token-Ring Enhanced Fiber
• 1-Port ATM Token-Ring II MMF
• MMS Client MMF
• MSS Client SMF
• MSS Domain Client
Chassis-based for flexibility
Universal Feature Card slots allow you
to build a wide variety of switched
network configurations using the broad
set of optional feature cards that are
shared between both models. This set
of features provides copper and fiber
Token-Ring ports, high-speed uplinks
and Multiprotocol Switched Services
(MSS) Client support. This expands the
capabilities of the 8270 with a sophisticated set of VLAN, filtering and Layer 3
switching functions. Unrestricted by a
fixed-port configuration, the UFCs can be
used in each of the slots of the IBM 8270
to construct a wide variety of switched
networks.
1. 2210 Ro uter
2. 8230 Controlled Access Unit
3. 8229 Bridge
4. 8239 Token-Ring Stackable Hub
Figure 1. A typical Token-Ring LAN experiencing congestion
High-speed forwarding
When configured with the appropriate
number of Token-Ring Universal Feature
Cards, the 8270 provides high-speed
forwarding of Token-Ring frames among
shared or dedicated Token-Ring LAN
segments. Similar in function to a
multiport bridge, the 8270 forwards
Token-Ring frames from one port to
another, based on Token-Ring MAC
addresses. The 8270 creates multiple,
parallel paths among the connected
Token-Ring LAN segments and devices.
Supports full-duplex
communication
The 8270 supports full-duplex communication with LAN stations equipped with
full-duplex Token-Ring adapters. Fullduplex Token-Ring connections can
provide up to twice the bandwidth (up to
32 Mbps) of standard half-duplex
connections.
1. 2210 Ro uter
2. 8230 Controlled Access Unit
3. 8229 Bridge
4. 8239 Token-Ring Stackable Hub
5. 8270 Nways Token-Ring LAN Switch Model 60 0
Figure 2. A Token-Ring switch relieving that congestion
Added capacity and flexibility
With the 8270 you get added capacity
and flexibility at a low cost per port.
The LAN shown in Figure 1 has provided
excellent service in this data environment. But growth and new graphics
applications are causing performance
problems on this traditional, sharedmedia, 16-Mbps LAN.
Combining switching, full-duplexattached servers and micro-segmented,
shared-media LANs (Figure 2) gives the
following advantages:
• No change to installed adapters
• No change to house wiring
• No change to application software
• Fewer users per segment
• More bandwidth per user
• Reduction in the number of bridges
• Reduced complexity
• Reduced cost
1. 2210 Ro uter
2. 8230 Controlled Access Unit
3. 8228 MAU
4. 8270 Nways LAN Switch Model 600
5. 8272 Nways Token-Ring LAN Model 108
6. 8226 Token-Ring RJ45 Connection
7. 8239 Token-Ring Stackable Hub
8270 Nways LAN Switch Family
Model 800
Backbones remain overburdened by
demands of e-mail, busy servers and
Internet traffic (see Figure 3). Until now
all you could do was install a faster,
shared-media LAN like FDDI.
The 8270 Model 800 can act as a
powerful workgroup switch or replace
the entire backbone with a single switch
(see Figure 4). Use TokenPipes to double
or quadruple the bandwidth if you need
it. TokenPipe allows you to connect up to
four parallel, 32-Mbps paths between
any two Token-Ring switches, providing
as much capacity between switches as
you need. This solution means:
• No change to application software
• Elimination or reduction of bridges
• Elimination of all routers except those on
the periphery
• Scalable bandwidth between switches
using TokenPipes
• Simplified network management
Figure 3. Backbone congestion
1. 2210 R oute r
2. 8230 Controlled Access Unit
3. 8228 MAU
4. 8270 Nways Token-Ring LAN Model 600
5. 8272 Nways Token-Ring LAN Model 108
6. 8226 Token-Ring RJ45 Connection
7. 8239 Token-Ring Stackable Hub
8. 8270 Nways LAN Switch Model 80 0
Figure 4. The 8270 Model 800 relieves backbone congestion
Network and device management
A full console interface, accessible
using either a Telnet interface or the
serial port (VT-100 or VT-100 emulator) on
the front panel, can be used to configure
and monitor the IBM 8270. Alternatively,
the IBM 8270 contains a management
agent that allows you to monitor and
control its operation from SNMP applications. IBM’s suite of network management applications, such as the
Nways Workgroup Manager for Windows
NT and the IBM Nways Manager for AIX,
allow you to manage your IBM 8270
using a rich set of graphical interfaces
from a central location.
Further, when and if new functions or
problem fixes become available, the IBM
8270 can be easily upgraded with new
operational code. These software
updates will be made available via the
World Wide Web, allowing you to conveniently upgrade the operation of your
IBM 8270.
With the IBM 8270’s TokenProbe support,
you can designate one of the Token-Ring
ports to mirror the traffic on another
Token-Ring port. This allows you to tune
or troubleshoot any of the Token-Ring
ports on your switch using an external
protocol analyzer. The IBM 8270 SNMP
agent also includes remote monitoring
(RMON) support that allows you to
monitor network conditions on all LAN
segments attached to your 8270
simultaneously and to report this
information to an RMON application
using industry-standard protocols.
I
BM
What you get
A minimum IBM 8270 Model 600
configuration consists of an IBM 8270
Model 600 and at least one Token-Ring
Universal Feature Card, each ordered
separately. When you order an IBM 8270
Model 600, you get:
• IBM 8270 Model 600 switch (which
includes an 8270-600 processor and
power supply)
• Rack mounting brackets
• Cable management bracket
• Installation Guide and Service
Information Card
• Safety Manual
• Publications CD-ROM (which includes
softcopy of the
Configuration, and Operation Guide
• Power cord (US and Canada only)
A minimum IBM 8270 Model 800
configuration consists of the following
components, each of which must be
ordered separately:
• An IBM 8270 Model 800 Chassis kit
• An IBM 8270 Model 800 Processor Card
• At least one Token-Ring Universal
Feature Card
When you order an IBM 8270 Model 800
Chassis kit, you get:
• IBM 8270 Model 800 chassis (including
an 8270-800 power supply)
• Rack mounting brackets
• Cable management bracket
• Installation Guide and Service
Information Card
• Safety Manual
• Power cord
When you order an IBM 8270 Model 800
Processor Card, you get:
• An IBM 8270 Model 800 Processor Card
• Publications CD-ROM (which includes
softcopy of the
Configuration, and Operation Guide
IBM 8270 Planning,
)
IBM 8270 Planning,
)
For 8270 Model 800 configurations, you
can also order an optional redundant
power supply.
Cables for each of the ports on the 8270
are required but are not included with
the switch. When operating as a TokenRing switch the 8270 uses the following
types of cabling:
• Category 3, 4 or 5, 100-ohm, UTP cables
with RJ-45 connectors wired to support
Token Ring
• 150-ohm, STP cables with shielded
RJ-45 connectors wired to support
Token Ring
• Any current Token-Ring lobe cabling
support for all types of connectors
• EIA 232-C cable with a DB-9 connector
for connection to the management port
• Multimode or single-mode optical fiber
with SC or ST connectors for fiber ATM or
Token-Ring ports
Model Comparison
Though functionally comparable, the
differences between the IBM 8270
Model 600 and the current Model 800
are summarized in the following table:
Except for considerations pertaining to
their number of feature slots and
redundancy characteristics, the IBM
8270 Model 600 is suitable for use in the
same environments as the Model 800.
However, with different redundancy
characteristics, the 8270 Model 600 may
be better placed closer to the edge
rather than the center of your network.
Model Feature Redundant Processor
Slots Characteristics
600 6 N/A Included (Built-In)
800 8 Redundant Power Supply Separately Ordered
Option; Redundant Fans
Included
IBM 8270 Nways LAN Switch Family at a glance
Part numbers 85H6 584: IBM 8270 Nways LAN S witch Model 800
25L4970: IBM 8270 Nways LAN Switch Model 600
72H4650: Token-Ring Processor Card (for Model 800 only)
72H4648: Redundant Power Supply (optional for Model 800)
LAN ports • Port number and type depend on which UFCs are installed and on the 8270 model.
• Support for 1700 active MAC addresses per port and 10 000 per 8272.
UFC slots Model 800: 8 slots
Model 600: 6 slots
Standard compliance Supports IEEE 802.5 network components
Full-duplex operation • Provides up to 32 Mbps, twice the bandwidth of standard half-duplex connections
• Provides for simultaneous, two-way transmission between the switch and a LAN station
• Improves server throughput by doubling available bandwidth when used on a dedicated
LAN segment
Hardware requirements Requires at least one Token-Ring Universal Feature Card
Configuration management • Console function accessible via Telnet or VT-100 (or VT-100 emulator) connected to serial port
• SNMP management for network management platforms capable of accessing SNMP
(MIB-II compliant) management agents, such as Nways Workgroup Manager for Windows NT
and Nways Manager for AIX®.
Source-routing technologies Ease of use with source-route switching
Economy with source-route bridging—redundant paths without external hardware
Interconnectivity TokenPipe support permits greater LAN segmentation by allowing you to interconnect multiple
IBM Nways Token-Ring LAN switches.
Ease of use Automatic sensing and configuring of connection types
Installation Can be mounted in a standard 19-inch rack or on a flat surface
Enhanced management tools Address filters, virtual switch support, and BootP/TFTP TokenProbe port
Physical specifications 8270 Model 800 Chassis
Width: 440 mm (17.3 in.)
Depth: 356 mm (14.0 in.)
Height: 222 mm (8.7 in.)
Weight: 23 kg (50 lb.) fully loaded
Weight: 17 kg (37 lb.) empty
IBM 8270 Nways LAN Switch Family at a glance continued
Physical specifications continued 8270 Model 600
Width: 440 mm (17.3 in.)
Depth: 305 mm (12.0 in.)
Height: 133 mm (5.2 in.)
Weight: 10 kg (22 lb.) fully loaded
Weight: 7 kg (16 lb.) empty
8270-800 Token-Ring Processor Card
Width: 170 mm (6.7 in.)
Depth: 210 mm (8.4 in.)
Height: 51 mm (2.0 in.)
Weight: 0.5 kg (1.2 lb.)
8270-800 Power Supply (optional)
Width: 76 mm (3.0 in.)
Depth: 350 mm (13.8 in.)
Height: 170 mm (6.7 in.)
Weight: 2.7 kg (6 lb.)
IBM 8270 Nways LAN Switch Family at a glance
Operating environment Model 800
Temperature: 10° to 40°C (50° to 104°F)
Relative humidity: 8% to 80%
Wet bulb: 27°C (80.6°F)
Electrical power: 0.6 kVA
Leakage and starting current: 0.5 mA/40 A, 6 ms
Capacity of exhaust: 2.3 m3/min. (82 ft3/min.)
Sound pressure: 56 dB
Model 600
Temperature: 10° to 40°C (50° to 104°F)
Relative humidity: 8% to 80%
Wet bulb: 27°C (80.6°F)
Electrical power: 0.15 KVA
Leakage and starting current: 1.5 mA/40 A, 6 ms
Capacity of exhaust: 1.3 m3/min. (46 ft3/min.)
Sound pressure: 44 dB
Standards compliance • 8270 Safety Standards: EN 60950, UL 1950, CSA 950
• Electromagnetic Standards: FCC Class A (USA), VCCI Class A (Japan),
ICES-003 Class A (Canada), EEC EMC (CE Mark), EN55022 Class B (CISPR-22B) or Class A
(CISPR-22A) when configured with UFCs using unshielded cables, IEC 1000-3-2
(EN 61000-3-2/Confirmed Harmonics Guide Line JEIDA)
Publications • 8270 Models 600 and 800 Planning, Configuration, and Operation
• 8270 Models 600 and 800 Installation and Service Guide
Softcopy of these publications are included on the IBM 8270 Publications CD-ROM. Copies of
this CD-ROM may be obtained using order number SK2T-0434.
Warranty 1 year
Year 2000 The IBM 8270 Nways LAN Switch Family is Year 2000 Ready when used in accordance with its
associated documentation and is capable of correctly processing, providing and receiving
data within and between the 20th and 21st centuries, provided all other hardware, software,
and/or firmware used with the product properly exchange accurate data with it.
ISO 9000 The IBM 8270 Nways LAN Switch Family was developed and is manufactured by IBM under a
registered ISO 9000 quality management system.
8270 UFCs at a glance
4-Port Token-Ring Enhanced UTP/STP Part number: 85H5092
Cabling:
UTP/STP via RJ-45 connectors
Supports Token-Ring STP cabling and category 3, 4 or 5 Token-Ring UTP cabling
Ports: 4 Token Ring, half-duplex (HDX) or full-duplex (FDX)
Data rate: 4- or 16-Mbps HDX or 32-Mbps FDX
2-Port Token-Ring Enhanced Fiber Part number: 85H5087
Cabling: Multimode fiber via ST connectors
Ports: 2 Token Ring, HDX or FDX
Data rate: 4- or 16-Mbps HDX or 32-Mbps FDX
1-Port ATM Token-Ring II MMF* Part number: 86H2762
Cabling: Multimode fiber via an SC connector
Ports: 1 ATM (LANE)
Data rate: 155 Mbps
MSS Client MMF*
1
Part number: 85H4596
Cabling: Multimode fiber via SC connectors
Ports: 1 ATM (LANE, CIP, NHRP)
Data rate: 155 Mbps
MSS Client SMF*
1
Part number: 85H4599
Cabling: Single-mode fiber via SC connectors
Ports: 1 ATM (LANE, CIP, NHRP)
Data rate: 155 Mbps
MSS Domain Client* Part number: 85H9303
Cabling: N/A
Ports: N/A
Data rate: N/A
Physical specifications All of the 8270 UFCs listed above have identical width and depth but vary in height and weight
as indicated below.
Width: 70 mm (6.7 in.)
Depth: 214 mm (8.4 in.)
Height:
25 mm (1.0 in.)
50 mm (2.0 in.) MSS Client only
Weight:
0.4 kg (0.9 lb.)
0.5 kg (1 lb.) MSS Domain Client only
0.7 kg (1.5 lb.) MSS Client only
Publications • ATM Multimode Fiber Universal Feature Card Planning and Installation Guide, GA27-4156
• MSS Client Universal Feature Card Planning and Installation Guide, GA27-4170
• MSS Domain Client Universal Feature Card Planning and Installation Guide, GA27-4171
• 2-Port Fiber and 4-Port UTP/STP Token-Ring Enhanced Universal Feature Cards Planning
and Installation Guide, GA27-4168
* Limitations: Maximum of two UFCs in this set may be installed in an IBM 8270. Th ere may als o be us age consideration associated with some of
these combinations.
1The MSS Client (MMF and SMF) UFCs each occupy two slots in an 8270. Al l of the other UFCs occupy one slot each.
For more information
To find out more about the IBM 8270
Nways Token-Ring LAN Switch Family
and other high-performance IBM
communications and networking
products, contact your IBM representative or call IBM Direct at 1 800-IBM-CALL
(1 800 426-2255). You can access the
IBM Networking Home Page at
www.networking.ibm.com.
Copies of this and other related product
specification sheets can be obtained
from the IBM FAX Information Service by
dialing 1 800 IBM-4-FAX
(1 800 426-4329) in the U.S. or Canada or
by dialing 415 855-4329 outside the U.S.
and Canada and requesting the
following document number:
6195: IBM 8270 Nways LAN Switch
Family Specification Sheet
© International Business Mac hines Corporation 1998
IBM Corporation
Department TYCA
PO Box 12195
RTP NC 27709
Printed in the United States of America
6-98
All Rights Reserved
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Copying or downloading the images contained in this
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consent of IBM.
AIX, IBM and Nways are trademarks of International
Business Machines Corporation in the United States
and/or other countries.
Microsoft, Windows, Windows NT, a nd the Windows
logo are registered trademarks of Microsoft
Corporation.
Other company, product and service names may be
trademarks or service marks of other companies.
Printed on recycled paper
G224-4510-02
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