Extending switching benefits to the user’s desktop
IBM 8276 Nways Ethernet RoutePort
Highlights
• Flexible-port switching concentrator
• Low-cost extension of switching
benefits to the user’s desktop
• Internal software segmentation
• Reduced device count
• Easy administration with power-
ful, graphical management tools
• Simple configuration
• Compatible with other IBM
Ethernet LAN switches
Features
The IBM 8276 Nways
RoutePort provides a 36-port Ethernet
port switching concentrator that
complements IBM’s powerful 8273 and
8274 Nways RouteSwitches and 8271
Nways LAN Switches. Used in combination with one of these switches, the 8276
extends the benefits of switching to the
user’s desktop. It’s a good solution for
customers who want the advantages of
switching, LAN segmentation, virtual
LANs (VLANs), routing and increased
bandwidth but who can’t justify the cost
of providing 10 Mbps to every desktop.
The 8276 allows all of its ports to be
divided via software into as many as four
independent Ethernet segments,
providing an effective bandwidth of
40 Mbps. And depending on your model
selection, up to two of the 36 ports on
each 8276 can be configured as optical
fiber links.
™
Ethernet
Powerful VLAN extension
Users connected to an 8273 or 8274
through the 8276 inherit the benefits of
their powerful VLAN implementation. The
8276 can support up to 32 policy-based
VLANs on a single segment. A single
VLAN can span multiple segments.
Reducing current and
future costs
LAN equipment and administration costs
are major expenses when expanding
networks. Per-port costs are of particular
concern for both current and future
needs. Use of the 8276 with one of IBM’s
powerful LAN switches maximizes user
function at minimum port cost and allows
for future expansion at minimum
additional cost.
Simplified changes
The ability to dynamically add, delete or
move users and make other network
changes through software means that
administrators can reconfigure the
network without cable changes or
network downtime. Being able to easily
move users from one segment to another
provides simple bandwidth management for improved network performance
and user response.
Integrated network management
The 8276 is equipped with a built-in
SNMP agent that allows the hub to be
managed through the IBM RouteSwitch
Network Manager and RouteTracker
Manager. And the 8276 supports
network management and control via a
console management terminal connected to the serial communications
port.
IBM Nways RouteSwitch
Network Manager
IBM’s Nways RouteSwitch Network
Manager provides what you need in a
network management package.
Replace guesswork or calculations with
real-time, graphical representations of
network performance, alarms and
configurations. Network configuration,
monitoring and diagnostic information is
simple, regardless of the mix of different
vendor equipment that makes up your
network. You can integrate the
RouteSwitch Network Manager with a
variety of network platforms including HP
OpenView for Windows
for UNIX
®
, SunSoft SunNet Manager and,
of course, IBM’s NetView
®
, HP OpenView
®
for AIX®.
IBM Nways RouteTracker
Manager
A powerful graphical application, the
RouteTracker provides the flexibility of
policy-based VLANs with the security
and isolation of port VLANs using
RouteTracker grouping capability. You
can view the relationship between
groups, VLANs and devices across the
entire network. Drag-and-drop features
with smart wizards make VLAN setup and
maintenance easy.
Technical details
The 8276 provides thirty-six 10BASE-T
Eth erne t po rts. Two of these ports,
depending on the 8276 model, may be
configured as 10BASE-FL using singlemode or multimode cabling. The
10BASE-T ports connect through RJ-45
connectors using a maximum of 100 m
(328 ft) of 100-ohm STP or UTP cable. The
optional, 10BASE-FL por ts connect
through SC (single-mode) or ST (multimode) connectors using a maximum of
2000 m (6562 ft) of fiber cable.
There is one EIA 232-C serial port that
connects through a 9-pin, D-shell
connector to an optional customerprovided management console.
Features Benefits
Internal software Highly flexible subnetting and domain segments assignments.
Cost reduction Replaces multiple hardware concentrators, thereby reducing the number of devices
requiring management.
8273 connection Extends switching benefits to the desktop.
Large number of ports The extended benefits of switching are achieved at a low cost per port.
Integrated network Powerful control and configuration management capabilities without network disruption.
Model number matrix for the 8276
Model number No. of 10BASE-T No. of 10BASE-FL SC No. of 10BASE-FL ST
RJ-45 ports (multimode) ports (single-mode) ports
360 36 0 0
361 35 1 0
362 34 2 0
363 35 0 1
364 34 0 2
365 34 1 1
A set of 15 LEDs provide an
indication of port link integrity
Software allows the 8276 to be configured internally as one to four independent Ethernet segments. Any or all of the
36 Ethernet ports can be assigned to any
of the four segments. These assignments
can be altered via software at any time,
without affecting uninvolved ports.
For more information
To find out more about the IBM 8276
Ethernet RoutePort and other highperformance IBM communications and
networking products, contact your IBM
representative or call IBM Direct at
1 800 IBM-CALL (1 800 426-2255). You
can also access the IBM Networking
Home Page at
http://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
document number 7213.
IBM 8276 Nways Ethernet RoutePort at a glance
Models 360, 361, 362, 363, 364, 365
LAN ports 36
Other ports One serial port, EIA 232-C, 9-pin D connector, configured
as an IBM AT® serial port (DTE)
Memory 2 MB of flash
1 MB of DRAM
Data rate 10 Mbps
Maximum frame size 1518 by t e s
Internal segments 4 maximum
Physical specification Width: 432 mm (17 in.)
Depth: 330 mm (13 in.)
Height: 51 mm (2 in.)
Weight: 4.1 kg (9 lb)
Standards compliance IEEE 803.2; IAB RFC 826; IAB RFC 894
Warranty 1 year
Related publications • IBM Nways RouteSwitch User’s Guide, GA27-4166
• IBM Nways RouteSwitch User’s Release Note, GC30-3874
• IBM 8273 Nways Ethernet RouteSwitch specification
sheet, G224-4524
© International Business Machines Corporatio n 1997
IBM Corporation
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Produced in the United States of America
3-97
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