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Remote Monitoring

(RMON) Option

The BayStack AN and ANH support

an optional integrated Data Collection

Module (DCM), which provides

standard RMON (RFC 1757—all nine

groups) probe capabilities plus real-

time packet capture and ﬁltering.

Using a dedicated 25 MHz Motorola

MC68040 microprocessor and 2 MB

DRAM, the DCM continuously

monitors the Ethernet segment of the

BayStack AN or ANH, collecting data

to be used in analyzing remote net-

work performance, topology, faults,

departmental usage (for accounting

purposes), and protocols.

Bay Networks Optivity Planning™

and Optivity Analysis™ network

management applications deliver full

RMON support. These applications

enhance strategic network planning

by collecting, correlating, and sum-

marizing long-term performance

data. Historical information on net-

work activity can be used to detect

trends in network performance and

to recommend optimum network

conﬁguration.

Third Synchronous, ISDN

BRI, Second Ethernet,

T1/Fractional T1 (FT1)

DSU/CSU or 56/64 Kbps

DSU/CSU Option

In addition to the two standard

Synchronous interfaces, the BayStack

AN and ANH can be conﬁgured,

either at the factory or as a ﬁeld

upgrade, with an optional third

Synchronous, ISDN BRI, T1/FT1

DSU/ CSU or 56/64 Kbps DSU/CSU

adapter module. If an ISDN BRI port

conﬁgured with two B channels and

one D channel is enabled, only one

synchronous port (COM2) is active.

With these modules, the BayStack AN

and ANH routers can provide a single-

platform solution for applications

requiring a primary link, backup link,

and Synchronous interface for legacy

(SDLC, X.25, Binary Synchronous

Communications (BSC)) integration.

Additionally, Ethernet BayStack AN

and ANH systems support a second

Ethernet interface. With two Ethernets,

the BayStack AN and ANH can

provide shared WAN access to two

workgroups that require the ﬁrewall

security of operating on separate LANs.

Hardware Features

LAN and Serial Interfaces

The Bay Networks BayStack AN

supports Ethernet and/or Token Ring,

and Synchronous and ISDN BRI inter-

faces to meet a wide variety of LAN

connectivity requirements.

The third Synchronous interface,

second Ethernet interface, and ISDN

BRI of the BayStack AN and ANH are

provided via optional adapter mod-

ules. If an ISDN BRI port conﬁgured

with two B channels and one D chan-

nel is enabled, only one synchronous

port (COM2) is active. These modules

can be easily removed or exchanged

to meet changes in network require-

ments for enhanced ﬂexibility and

connectivity.

Ethernet/802.3 All Ethernet/802.3

interfaces support IEEE 802.3 and

Version 1.0/2.0 Ethernet frame for-

mats. Ethernet/802.3 models (single

and dual Ethernet, single Ethernet

with single Token Ring) are available

in conﬁgurations that provide one

10BASE-T (RJ-45) connector and one

Attachment Unit Interface (AUI) con-

nector for a choice of connectivity. A

cable from the interface’s 15-pin AUI

connector provides optional connec-

tors to a variety of media, including

broadband, baseband, Starlan, ﬁber,

and shielded twisted pair. This ﬂexi-

bility accommodates the media that

best suits distance, cost, and reliability

criteria.

Ethernet Hub The BayStack AN

Ethernet/802.3 models are also avail-

able with an integrated 10BASE-T

hub conﬁguration.

The BayStack ANH simpliﬁes remote

site equipment requirements and

management by integrating Ethernet

connectivity with routing services in

the BayStack AN.

The BayStack ANH provides 8 or 12

managed 10BASE-T (RJ-45) repeater

ports for shielded or unshielded

twisted pair cable attachment. Each

connector is conﬁgured as an

Medium Dependent Interface with

internal crossover (MDI-X) to connect

directly to any 10BASE-T network

interface card (NIC). BayStack ANH

models can also be conﬁgured as a

Medium Dependent Interface (MDI)

to allow the BayStack ANH to be

connected to other 10BASE-T hubs,

accommodating additional devices.

An optional second Ethernet adapter

module is available for both 8- and

12-port BayStack ANH models.

Router/hub LEDs report per-port link

integrity status and port partitioning

status, as well as the MDI/MDI-X

switch setting.

Token Ring/802.5 The Token Ring

interface can operate at either 4 or 16

Mbps ring speeds (software conﬁg-

urable), providing the ﬂexibility to

migrate to higher speeds as perform-

ance requirements dictate. A 9-pin D

subminiature connector is provided

on the Token Ring BayStack AN mod-

els for Token Ring cable attachment.

The Token Ring interface also sup-

Data Sheet BayStack Access Node and Access Node Hub4

1 2 3 4 5 6 7 8 9 ... 15 16

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