Avaya M770 User manual

AvayaM770and
M-MLS SMON
User Guide
April 2002

Avaya M770 and M-MLS SMON User Guide
Copyright Avaya Inc. 2002 ALL RIGHTS RESERVED
The products, specifications, and other technical information regarding the products
contained in this document are subject to change without notice. All information in this
document is believed to be accurate and reliable, but is presented without warranty of any
kind, express or implied, and users must take full responsibility for their application of any
products specified in this document. Avaya disclaims responsibility for errors which may
appear in this document, and it reserves the right, in its sole discretion and without notice, to
make substitutions and modifications in the products and practices described in this
document.
Avaya™, Cajun™, P550™, LANstack™, CajunView™, and SMON™ are trademarks of
Avaya Inc.
ALL OTHER TRADEMARKS MENTIONED IN THIS DOCUMENT ARE PROPERTY OF THEIR
RESPECTIVE OWNERS.
Release 2.002

Avaya M770 and M-MLS SMON User Guide iii
Table of Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .vi
The Purpose of this Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
Who Should Use this Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
Organization of this Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .vii
Chapter 1 — Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
What is RMON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
What is SMON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Switch Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Enterprise Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
SMON Management Applications . . . . . . . . . . . . . . . . . . . . . . . .3
Overview of SMON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
SMON Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Top-Down Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Top-Down Monitoring for the MAC Layer . . . . . . . . . . . . . .5
Top-Down Monitoring for the Upper Layers . . . . . . . . . . . .6
SMON Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Enterprise SMON Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Device SMON Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Switch Statistics Overview . . . . . . . . . . . . . . . . . . . . . . . . .10
VLAN Statistics Overview . . . . . . . . . . . . . . . . . . . . . . . . . .10
Port Analysis Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
AnyLayer SMON Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Protocol Directory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Protocol Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Network Layer Subnet Statistics (IP & IPX) . . . . . . . . . . . .14
Network Layer Host Statistics (IP) . . . . . . . . . . . . . . . . . . .14
Chapter 2 — Using SMON Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Customizing the Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Focusing on a Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Saving and Opening a Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Generating Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Configuring a Printer for UNIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Using the Toolbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
The Status Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Mouse Actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Viewing Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

iv Avaya M770 and M-MLS SMON User Guide
Table of Contents
Chapter 3 — Device SMON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Using Device SMON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Device SMON for the Avaya M770 Device . . . . . . . . . . . . . . . .28
AnyLayer SMON for the Avaya M-MLS . . . . . . . . . . . . . . . . . .29
Chapter 4 — Switch Statistics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Starting Switch Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Switch Statistics Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Pie Charts in the Switch Statistics Window . . . . . . . . . . . . . . . .32
Traffic Graph in the Switch Statistics Window . . . . . . . . . . . . .32
Chapter 5 — VLAN Statistics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Starting VLAN Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
The VLAN Statistics Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Chapter 6 — Port Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Starting Port Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
The Port Statistics Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Chapter 7 — Ethernet Segment Statistics . . . . . . . . . . . . . . . . . . . . . 40
Starting Ethernet Segment Statistics . . . . . . . . . . . . . . . . . . . . . . . .40
Ethernet Segment Statistics Window . . . . . . . . . . . . . . . . . . . . . . . .41
Pie Charts in Ethernet Segment Statistics . . . . . . . . . . . . . . . . .42
Traffic Graph in Ethernet Segment Statistics . . . . . . . . . . . . . . .43
Chapter 8 — Protocol Directory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Constant and User Defined Protocols . . . . . . . . . . . . . . . . . . . . . . . .47
TCP/UDP Port Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Using Protocol Directory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Adding Monitored Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Adding a Well Known Protocol . . . . . . . . . . . . . . . . . . . . .51
Adding a Registered/Private Protocol . . . . . . . . . . . . . . . . .52
Using the Available Registered Protocols Window . . . . . . .53
Removing Monitored Protocols . . . . . . . . . . . . . . . . . . . . . . . . .54
Chapter 9 — Protocol Distribution. . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Starting Protocol Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Protocol Distribution Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Bar Graph and Pie Charts in the Protocol Distribution Window . . . .57
Traffic Graphic in the Protocol Distribution Window . . . . . . . .58
Interpreting the Traffic Graph . . . . . . . . . . . . . . . . . . . . . .58
Selecting Protocols for the Traffic Graph . . . . . . . . . . . . . .59

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Table of Contents
Chapter 10 — Network Layer Subnet Statistics (IP & IPX) . . . . . . . . 60
Starting Network Layer Subnet Statistics . . . . . . . . . . . . . . . . . . . . .61
Network Subnet Statistics Window . . . . . . . . . . . . . . . . . . . . . . . . .62
Chapter 11 — Network Layer Host Statistics. . . . . . . . . . . . . . . . . . . 63
Starting Network Layer Host Statistics . . . . . . . . . . . . . . . . . . . . . . .63
Network Layer Host Statistics Window . . . . . . . . . . . . . . . . . . . . . .64
Appendix A — SMON Dialog Boxes. . . . . . . . . . . . . . . . . . . . . . . . . . 65
Using the Polling Interval Dialog Box . . . . . . . . . . . . . . . . . . . . . . . .65
Using the Display Configuration Dialog Box . . . . . . . . . . . . . . . . . .66
Using the Report Now Dialog Box . . . . . . . . . . . . . . . . . . . . . . . . . .67
Using the Auto Report Dialog Box . . . . . . . . . . . . . . . . . . . . . . . . . .68
Using the Sort By Dialog Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
Using the Find Dialog Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
Finding a VLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Finding a Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Using the Find Top5 Peaks Dialog Box . . . . . . . . . . . . . . . . . . . . . . .72
Using the Define Filter Dialog Box . . . . . . . . . . . . . . . . . . . . . . . . . .73
Using the Define TopN Filter Dialog Box . . . . . . . . . . . . . . . . . . . . .75
Using the Open Session Dialog Box . . . . . . . . . . . . . . . . . . . . . . . . .76
Using the Save Session Dialog Box . . . . . . . . . . . . . . . . . . . . . . . . . .77
Using the Data Collection Dialog Box . . . . . . . . . . . . . . . . . . . . . . .78
Using the Graph Display Dialog Box . . . . . . . . . . . . . . . . . . . . . . . .79
Using the Counters Setup Dialog Box . . . . . . . . . . . . . . . . . . . . . . .80
Freezing and Unfreezing Graphs . . . . . . . . . . . . . . . . . . . . . . . . . . .81
Zooming In and Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
Displaying Pies Percentage Option . . . . . . . . . . . . . . . . . . . . . . . . . .83
Using the Port Connected Window . . . . . . . . . . . . . . . . . . . . . . . . .84
Appendix B — Setting Up the SMON License . . . . . . . . . . . . . . . . . . 85
Avaya MultiService SMON Manager License . . . . . . . . . . . . . . . . . .85
SMON Embedded License . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
Appendix C — Troubleshooting SMON Tools . . . . . . . . . . . . . . . . . . 87
SMON Application Will Not Start . . . . . . . . . . . . . . . . . . . . . . . . . . .87
An SMON Tool Will Not Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
The Management Station Cannot Find or Ping the Agent . . . . . . . .88
Disk Space is Full . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Avaya M770 and M-MLS SMON User Guide vi
Preface
Welcome to Avaya M770 and M-MLS SMON. This chapter provides an
introduction to the structure and assumptions of the guide. It includes
the following sections:
•The Purpose of this Guide - A description of the intended
purpose of this guide.
•Who Should Use this Guide - A description of the intended
audience of this guide.
•Organization of this Guide - A brief description of the subjects
covered in each chapter of this guide.
The Purpose of this Guide
This guide contains the information needed to operate Avaya’s SMON
switch monitoring application for Avaya M770 and Avaya M-MLS
Devices efficiently and effectively. For information on using SMON with
the Avaya P330 Device, refer to Cajun P330 Device SMON User’s Guide. For
information on using SMON with Avaya P580/P882 Devices, refer to
Avaya P580/P882 SMON User Guide. For information on using
Avaya MultiService SMON Manager, refer to Avaya MultiService SMON
User Guide.
Who Should Use this Guide
This guide is intended for use by network managers familiar with
network management and its fundamental concepts. It is assumed that
the user has the basic responsibility for monitoring Avaya’s intelligent
switching devices and the network traffic.

Avaya M770 and M-MLS SMON User Guide vii
Preface
Organization of this Guide
This guide is structured to reflect the following conceptual divisions:
•Introduction to SMON - This section introduces SMON and
describes how to access Avaya M770 and M-MLS SMON. It
contains the following chapters:
—Preface - This chapter describes the guide’s purpose, intended
audience, and organization.
—Overview - This chapter provides an overview of the RMON
standard and Avaya Inc.’s SMON concepts, a graphical
example of SMON in a network, a description of the
Avaya Inc. switch architecture and monitoring concepts, and
an introduction to the SMON tools.
—Quick Start - This chapter describes how to start Avaya
M770 and M-MLS SMON, how to edit host files, and the
global display customization procedures.
•Avaya M770 and M-MLS SMON - This section describes the
Avaya M770 and M-MLS SMON control panel andapplications. It
contains the following chapters:
—Avaya M770 SMON - This chapter describes the
Avaya M770 SMON and Avaya M-MLS SMON control panels
and how to launch the SMON applications.
—Switch Statistics - This chapter describes the Switch
Statistics tool in detail, including sample screens and filtering
options.
—VLAN Statistics - This chapter describes the VLAN Statistics
tool in detail, including sample screens and filtering options.
—Port Statistics - This chapter describes the Port Statistics tool
in detail, including sample screens and filtering options.
—Extended Port Statistics - This chapter describes the
Extended Port Statistics tool in detail, including sample
screens and filtering options.
—Ethernet Segment Statistics - This chapter describes the
Segment Statistics tool in detail, including sample screens and
filtering options.

Preface
viii Avaya M770 and M-MLS SMON User Guide
•AnyLayer SMON - This section describes the AnyLayer SMON
applications for Avaya M-MLS Devices. It contains the following
chapters:
—Protocol Directory - This chapter describes the Protocol
Directory tool in detail.
—Protocol Distribution - This chapter describes the Protocol
Distribution tool in detail, including sample screens and
filtering options.
—Network Layer Subnet Statistics (IP & IPX) - This
chapter describes the Network Layer Subnet Statistics tool in
detail, including sample screens and filtering options.
—Network Layer Host Statistics - This chapter describes the
Network Layer Host Statistics tool in detail, including sample
screens and filtering options.
The following Appendices are included at the end of this guide:
•Appendix A - Dialog boxes that appear within Avaya M770 and
M-MLS SMON.
•Appendix B - How to set up the license so that SMON will work
with Avaya M770 and M-MLS Devices.
•Appendix C - Troubleshooting your setup and SMON
applications.

Avaya M770 and M-MLS SMON User Guide 1
1Overview
This chapter describes SMON, Avaya Inc.’s switched network monitoring
system.
This chapter includes the following sections:
•What is RMON - A brief description of the RMON standard.
•What is SMON - A general description of SMON switch
monitoring technology.
•Overview of SMON - An introduction to SMON in the network.
•SMON Tools - An introduction to the types of tools available in
SMON.
What is RMON
RMON is the internationally recognized and approved standard for
detailed analysis of shared Ethernet and Token Ring media. It ensures
consistency in the monitoring and display of statistics between different
vendors.
RMON’s advanced remote networking capabilities provide the tools
needed to monitor and analyze the behavior of segments on a network.
In conjunction with an RMON agent, RMON gathers details and logical
information about network status, performance, and users running
applications on the network.
An RMON agent is a probe that collects information about segments,
hosts, and traffic, and sends it to a management station.
The network administrator uses software tools to view the information
collected by the RMON agent on the management station.
RMON has two levels:
• RMON I analyzes the MAC layer (Layer 2 in the OSI seven-layer
model).
• RMON II analyzes the upper layers (Layers 3 and above).

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2 Avaya M770 and M-MLS SMON User Guide
RMON is an industry standard that Avaya Inc. and other companies
have adopted in their network management applications. SMON takes
the RMON standard and extends it to the switching environment.
What is SMON
SMON is an extension of the RMON standard. SMON adds to the
monitoring capabilities of RMON in the following ways:
• It provides additional tools and features for monitoring in the
switch environment.
• It provides a global view of traffic flow in a network with multiple
switches.
SMON extends both RMON I for the MAC layer, and RMON II for the
network layer and above. SMON monitoring collects and displays data in
real-time.
Using SMON monitoring, you can get:
• A global view of traffic for all switches on the network.
• An overall view of traffic passing through a specific switch.
• Detailed data about the hosts transmitting packets or cells
through a switch.
• An analysis of traffic passing through each port connected to a
switch.
• A view of traffic between various hosts connected to a switch.
Switch Monitoring
Effective switch management requires a comprehensive monitoring
mechanism. RMON monitoring is not sufficient for switches. RMON
probes can only be used to monitor and analyze a single segment. When
you deploy a switch in the network, there are additional components in
the network that can not be monitored using RMON, such as switch
ports, VLAN, and statistics for all ports.
SMON meets this challenge by extending RMON to the switched
network. The SMON extensions of RMON allow the network
administrator to analyze the switched network and all of its components.

Avaya M770 and M-MLS SMON User Guide 3
Overview
Enterprise Monitoring
Switches are often used in networks with a complex topology. Switches
are typically deployed at the center of an enterprise network between
clients and servers, or in backbones to provide high bandwidth and
secure connectivity.
SMON extends RMON to provide global monitoring for complex
networks. Enterprise SMON tools provide a network-wide view of all
switched devices in the network. They enable you to monitor the entire
network in a single window.
SMON Management Applications
The management applications provided by the SMON extension of
RMON include SMON I tools on the MAC layer, and AnyLayer SMON
tools on the network layer and above.
The SMON I tools extend RMON I to provide switch monitoring and
global network monitoring on the MAC layer. These tools include:
• Enterprise Switch Statistics
• Enterprise Port Statistics
• Enterprise History
• Switch Statistics
• Switch-wide Quality of Service (QoS) indication (provided as part
of Switch Statistics)
•VLANStatistics
• Port Statistics
• Ethernet Segment Statistics
• Host Statistics
• Host Matrix Statistics
• Port History
The AnyLayer SMON tools extend RMON II to provide switch
monitoring on the network layer and above. These tools include:
• Protocol Directory
• Protocol Distribution

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4 Avaya M770 and M-MLS SMON User Guide
• Network Layer Host Statistics over IP
• Network Layer Subnet Statistics over IP
• Network Layer Network Statistics over IPX
Overview of SMON
Avaya MultiService SMON Manager in conjunction with Avaya Device
SMON applications form an RMON-compliant network management
suite that implements the SMON extensions to RMON. SMON works
with the other components of the Avaya MultiService Network Manager
to provide a full spectrum of in-depth monitoring of switch traffic and
network performance.
SMON consists of a software console application on a workstation and
remote monitoring probes in network devices that support SMON.
The SMON console communicates constantly with the SMON devices on
your network. The console uses the SNMP protocol to gather
information from the devices. SMON applications provide you with a
suite of powerful graphic display tools to view this information.
SMON applications give you detailed analysis of the traffic flow on your
switched network, from a global view down to a specific host, and from
total MAC layer traffic down to a specific application protocol - all in
real-time.
SMON Devices
SMON provides monitoring capabilities for network devices that support
the SMON extensions of the RMON standard.
For Avaya M770 and M-MLS Devices, SMON monitoring capabilities can
be activated by purchasing an SMON license from Avaya Inc., Bell Labs
Innovations.
Avaya M770 M-MLS Devices also support the AnyLayer SMON
extensions of RMON II.

Avaya M770 and M-MLS SMON User Guide 5
Overview
Top-Down Monitoring
SMON provides multi-tiered monitoring capabilities, both for the MAC
layer (SMON I) and for upper layers (AnyLayer SMON). Multi-tiered
monitoring enables you to use powerful top-down network monitoring
techniques.
Top-down monitoring begins when you notice particular traffic flow
patterns in a global view of your network. You then progessively focus in
until you find the specific source or sources of the traffic. Using this
method, the amount of information you need to assess is kept to a
minimum. Top-down monitoring is robust enough to keep you in
control of even the most complex and sophisticated networks.
Top-Down
Monitoring
for the MAC
Layer
The top tier for SMON top-down monitoring at the MAC level (SMON I)
is Enterprise Switch Statistics. The Enterprise Switch Statistics tool shows
summary traffic statistics for all switches in your network.
The next two tiers provide a general look at the traffic passing through a
specific switch. In this way, you can view at a glance whether the switch
is functioning efficiently and effectively. These tiers provide answers to
questions such as:
• Is there more traffic than usual passing through this switch?
• Are there more error packets than usual?
• How much traffic is passing through the VLANs?
• Do the VLANs have equal loads?

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The lower monitoring tiers provide more focused views of the traffic on
the device. They allow you to zero in on a specific host or port on a
switch. You can then pinpoint the exact source of the traffic discovered
in the upper tiers.
Figure 1-1. Top-Down Monitoring for the MAC Layer
Top-Down
Monitoring
for the
Upper
Layers
SMON provides a series of AnyLayer SMON tools for implementing top-
down monitoring techniques at the network layer and above. Top-down
monitoring on upper layers allows you to view aspects of your network
that extend beyond the router, or that apply to a specific application
protocol.
The upper tier of SMON top-down monitoring for upper layers is
Protocol Distribution. The Protocol Distribution tool gives a general view
of traffic through a switch, organized by protocol. Some of the types of
questions Protocol Distribution may provide answers to are:
• What proportion of the traffic consists of IP or IPX maintenance
protocols, such as ARP, RIP, or SAP?
• Is there an unusual amount of traffic for a specific type of
application protocol, such as e-mail, name service, or HTTP?

Avaya M770 and M-MLS SMON User Guide 7
Overview
• Is there an unusual amount of ICMP traffic that may be caused by
flood pinging?
The lower tiers then allow you to locate the IPX network, IP subnet, or
specific IP host that is the source of the traffic discovered using Protocol
Distribution.
Figure 1-2. Top-Down Monitoring for Upper Layers

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8 Avaya M770 and M-MLS SMON User Guide
SMON Tools
The SMON tools are divided into the following:
•Enterprise SMON Tools - The Enterprise SMON tools and how
they function.
•Device SMON Tools - The Device SMON tools and how they
function.
•AnyLayer SMON Tools - The AnyLayer SMON tools and how
they function.
Figure 1-3. SMONMaster Tools
Enterprise SMON Tools
Enterprise SMON tools provide global monitoring capabilities for
multiple SMON devices on a network.
For information on Enterprise SMON tools, refer to Avaya MultiService
SMON Manager User Guide.

Avaya M770 and M-MLS SMON User Guide 9
Overview
Device SMON Tools
Device SMON tools monitor specific devices. For Avaya M770 Devices
there is an SMON control panel that provides access to the specific
SMON tools that you can use for the device.
* Note: For information on SMON for Avaya P130 Devices, refer to
Avaya P130 SMON User Guide. For information on SMON for
Avaya P330 Devices, refer to Avaya P330 SMON User Guide.
For information on SMON for Avaya P580/P882 Devices,
refer to Avaya P550/P880 SMON User Guide.
Device SMON includes MAC layer monitoring tools (SMON I) for
Avaya M770 Devices.
Figure 1-4. Avaya M770 SMON Control Panel
The Device SMON tools for SMON devices include:
•Switch Statistics - Detailed information on traffic passing
through the switch fabric.
•VLAN Statistics - Detailed information on switch traffic
associated with a VLAN.
•Port Statistics - Detailed information on port traffic to help
determine the precise cause of a problem.
Device SMON tools operate on a single switch at a time. For Avaya M770
Devices, you can select either the right DomainX or the left DomainX
from the Device SMON control panel (refer to Figure 1-4).

Chapter 1
10 Avaya M770 and M-MLS SMON User Guide
Switch
Statistics
Overview
The Avaya M770 SMON Switch Statistics tool provides details of the
traffic passing through the switch fabric and allows you to detect
problems on the switch. Once a problem has been detected, you can use
Port Statistics to determine more precisely the cause of the problem.
The display includes two sections:
• Pie charts or meters showing traffic breakdown.
• A browser that describes the characteristics of the traffic passing
through the switch.
For Avaya M770 Devices in which two switches (Left DomainX and
Right DomainX) can exist in a single device, traffic passing through a
selected DomainX is analyzed.
You can use the Switch Statistics tool for the following purposes:
• Gaining an overall view of the switched traffic over a specific time
period. This can help in discovering problems and analyzing
traffic trends.
• Discovering whether or not the switch is being utilized efficiently.
• Monitoring the load distribution among VLANs.
• Detecting a large number of broadcast messages sent. This
indicates there may be a problem with a station on the network.
• Treating any variable with abnormal behavior as an issue that
should be investigated further using other SMON tools.
In general, the Switch Statistics tool can help you spot problems that
only become apparent from a high-level view over time. By periodically
viewing Switch Statistics, you can detect normal and abnormal behavior
of the specific switch configuration.
SMON collects and displays all information in real-time. In addition,
information collected during a session can be saved for later viewing and
comparison.
VLAN
Statistics
Overview
The VLAN Statistics tool measures the switched traffic travelling through
VLANs on the selected switch. A VLAN consists of stations connected
logically rather than physically. A VLAN can be used, for example, to
distribute network resources by department, even if the department’s
stations are not all located in the same area. Therefore, a VLAN can
incorporate stations from different devices.

Avaya M770 and M-MLS SMON User Guide 11
Overview
By comparing the load of each VLAN you can discover which VLANs
are:
• Utilizing their full capacity.
•Undercapacity.
• Over-extended and probably causing a degradation in
performance to the users.
VLAN Statistics represents the information as a horizontal bar chart.
Using this tool in conjunction with Port Statistics and Switch Statistics
makes it straightforward to discover the cause of a problem. For
example, using VLAN Statistics you may discover that there are too
many broadcast errors on a specific VLAN. You could then use Port
Statistics to help indicate from which port the problem originates.
Port
Analysis
Tools
There are several SMON tools that allow you to see the rates of traffic
passing through individual ports on a switch:
• Port Statistics
• Ethernet Segment Statistics
• Port TopN
For each port, SMON summarizes the traffic, such as packets into the
switch and packets from the switch. You can sort by port name or by any
of the packet types. You can see, for example, the ports generating the
most errors. Port TopN produces a report for the most active ports on the
switch.
If you notice that a particular port displays a disproportionate amount of
errors, this may suggest that a device connected to the port is
responsible. If the attached port supports a Fast Ethernet connection,
only a few hosts will be attached to this port, so the responsible host can
easily be detected.
In addition, you can apply filters in order to examine:
•Most active ports - To discover which ports are generating a
high traffic load.
•Specific ports - To view statistics on these specified ports. These
may be a group of ports whose behavior you want to analyze.
You select the most active ports by using a rate base. SMON measures
the rate base for all the ports to find the most active ports and then
displays these ports and their statistics. This process is called Port TopN.

Chapter 1
12 Avaya M770 and M-MLS SMON User Guide
Using the Port Statistics tool in conjunction with VLAN Statistics and
Switch Statistics makes it straightforward to discover the cause of a
problem. For example, using Switch Statistics you may discover that
there are too many errors on a specific switch. You could then use Port
Statistics to help indicate the port from which the problem originates.
The following are sample uses of the Ethernet Segment Statistics tool:
• Gaining an overall view of the port over time. This can help in
discovering problems and analyzing traffic trends.
• Determining if the utilization percentage is unusually highor low,
enabling you to reconfigure your network accordingly for a more
equal load.
• Detecting a large number of broadcast messages sent, indicating
that there could be a problem with a station connected to the
port.
AnyLayer SMON Tools
AnyLayer SMON tools include upper layer monitoring tools for the
Avaya M-MLS.
For information on AnyLayer SMON tools for Avaya P333R and
X330WAN Devices, refer to the Avaya P330 SMON User Guide.
Figure 1-5. AnyLayer SMON Control Panel for Avaya M-MLS