IBM BM 8270 User Manual

Page 5

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.

IBM 8270 Nways LAN Switch Family at a glance

Part numbers

85H6584: IBM 8270 Nways LAN Switch 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 net work components

Full-duplex operation

• Provides up to 32 Mbps, twice the bandwidth of standard half-duplex connections

• Provides for simultaneous, t wo-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

Model Comparison
Though functionally comparable, the
differences between the IBM 8270
Model 600 and the current Model 800
are summarized in the following table:

Model

Feature

Redundant

Processor

Slots

Characteristics

600

N/A

Included (Built-In)

800

Redundant Power Supply

Separately Ordered

Option; Redundant Fans

Included