User Guide
iTap GigaBit Dual Port Aggregator
Models 96542iTP and 96547iTP
Doc. PUB542iTPU Rev. 1, 3/06
PLEASE READ THESE LEGAL NOTICES CAREFULLY.
By using a Net Optics iTap GigaBit Dual Port Aggregator you agree to the terms and conditions of usage
set forth by Net Optics, Inc.
No licenses, express or implied, are granted with respect to any of the technology described in this
manual. Net Optics retains all intellectual property rights associated with the technology described in this
manual. This manual is intended to assist with installing Net Optics products into your network.
Trademarks and Copyrights
© 2006 by Net Optics, Inc. Net Optics® is a registered trademark of Net Optics, Inc. iTapTM is a trademark of Net Optics, Inc. Additional company and product names may be trademarks or registered trademarks of the individual companies and are respectfully acknowledged.
Additional Information
Net Optics, Inc. reserves the right to make changes in specifi cations and other information contained
in this document without prior notice. Every effort has been made to ensure that the information in this
document is accurate.
Chapter 1
Introduction
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
About this Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Chapter 2
Installing the iTap
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Planning the Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Confi guring the iTap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Using the Command Line Interface (CLI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Mounting the iTap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Connecting the Management Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Connecting to the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Connecting to the Monitoring Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Connecting Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Checking the Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
iTap GigaBit Dual Port Aggregator
Contents
Chapter 3
Using the Front Panel Interface
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Utilization Alarm LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Link LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Power LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Reset Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Chapter 4
Using Web Manager
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Accessing Web Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Viewing System Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Viewing Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Confi guring the iTap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Chapter 5
Using System Manager
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Installing System Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Exploring System Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Creating a Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Deleting a Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Adding iTaps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Deleting an iTap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Confi guring an iTap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Viewing iTap Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Modifying an iTap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
iTap GigaBit Dual Port Aggregator
Appendix A
Specifi cations and Models
Specifi cations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Available Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Appendix B
Command Line Interface
Overview
Thank you for purchasing the latest innovation in Tap technology – the iTap
GigaBit Dual Port Aggregator. Net Optics' GigaBit Dual Port Aggregator Taps
provide ultra-effi cient access to critical GigaBit links using only one NIC on the
monitoring device. Net Optics’ iTap is a port aggregator Tap that gives you a quick
visual reference of link performance. The iTap GigaBit Port Aggregator monitors
and displays link bandwidth utilization on its front panel so you can see exactly
what is happening on both sides of the network link.
iTap GigaBit Dual Port Aggregator
Chapter 1
Introduction
Intelligent Tap
The iTap Port Aggregator displays the link utilization level, last peak with time
right on the front panel so you can see real-time utilization on both directions of
the network link. The iTap Port Aggregator is accessible from remote interfaces
that provide information and control from anywhere in the network. The iTap gives
you the information and the passive access point you need to respond quickly to
network events.
Performance Aggregation
The iTap Port Aggregator combines and regenerates both directions of a fullduplex stream, sending all aggregated traffi c out one or two separate passive moni-
toring ports. Typically, full-duplex monitoring with a network tap requires two
NICs (or a dual channel NIC)–one interface for each side of the full-duplex link.
Net Optics’ iTap Port Aggregator enables one or two devices to simultaneously
monitor a full-duplex link using only one NIC per device.
After the traffi c has been aggregated to a single fl ow, it is no longer possible to
distinguish the utilization levels of each side of the bi-directional link. The iTap
Port Aggregator tracks the utilization levels before aggregation, keeping this vital
information easily accessible from its remote and command line interfaces.
Buffers Absorb Bursts
When the traffi c levels exceed the capacity of the receiving NIC, the iTap Port
Aggregator stores the overfl ow traffi c in buffer memory. For high-load links, the
iTap Port Aggregator has 256MB of buffer memory. The buffers clear automati-
TM
1
iTap GigaBit Dual Port Aggregator
cally when the traffi c volume falls below the receiving capacity of the NIC. These
buffers allow the iTap Port Aggregator to absorb traffi c bursts without dropping
packets.
Traffi c Monitoring
The iTap Port Aggregator monitors the utilization levels of both sides of the fullduplex link. This information is displayed on the front panel and is available from
the remote interfaces. The iTap Port Aggregator allows you to set a threshold for
each side of the full-duplex link at which an alarm is triggered. For example, the
iTap Port Aggregator can warn you when the utilization in either direction passes
the 30% level. When a threshold level is exceeded, the alarm LED illuminates and
the remote interfaces record the event. The iTap Port Aggregator records the level
of the highest peak along with the date and time. Since the iTap Port Aggregator is
monitoring the utilization levels, this information is always available regardless of
the aggregation process.
Seeing is Believing
The display and alarm LEDs provide a quick visual check that the utilization
levels are not exceeding the capacity of the monitoring device or a pre-determined
threshold. From the display, you can view the current bandwidth utilization of each
side of a full-duplex link with the size and time of the highest peak. A quick check
of the display lets you know if there was an event that requires further investigation. After taking action on a utilization or peak event, you can reset the data from
a recessed reset button on the front panel or from a remote interface.
Access Information Anywhere
The Web Manager and System Manager allow you to remotely set parameters,
view status information, and monitor traffi c statistical data. These interfaces
provide security and performance information such as the number of over- and
under-sized packets, packet collisions, and CRC errors. You can remotely set the
alarm thresholds, clear the traffi c data counters, and turn on or off a Monitor Port.
This access is also available via an optional wireless link from your wireless PDA
or laptop.
Web Manager
Net Optics' Web Manager is the browser-based interface that allows you to change
settings, view status, and retrieve data remotely with simple-to-use controls. When
you access an iTap Port Aggregator with Web Manager, all confi gurations, status,
and traffi c data are displayed on a single page. Changes to the confi guration can be
made with a few clicks of the mouse.
2
iTap GigaBit Dual Port Aggregator
System Manager
iTap Port Aggregators can be used as a system managed via Simple Network Management Protocol (SNMP) from a single interface. Net Optics' System Manager
is an SNMP management tool that offers central management of all Net Optics
iTap devices in the network. You can organize iTaps into groups according to
workgroup, location, or any other criteria. As with Web Manager, you can view all
status, confi guration, and traffi c information and make changes quickly to any iTap
in the system. The iTap Port Aggregator generates SNMP alarm traps for system
status, threshold alarm, link status, and power status. If you are already using an
SNMP management tool, iTap Port Aggregators can be fully accessed after loading
Net Optics' Management Information Base (MIB) fi le.
Security, Visibility, and Reliability
You have the option of setting the iTap Port Aggregator so that it will not display
data on the LCD and you can turn off the Management Port, thus preventing it
from being accessed from the network. The Monitor Ports can also be turned off to
prevent unauthorized access to the network link. The monitoring device connected
to the iTap Port Aggregator sees all full-duplex traffi c including Layer 1 and Layer
2 errors. Redundant power connections provide uptime protection.
Ease of Use
Display alternately shows link utilization, highest peak, and when the
•
highest peak occurred
LED indicators show redundant power, link status, and utilization alarm
•
IEEE 802.11b wireless communication optional
•
Front-mounted connectors support easy installation and operation
•
Silk-screened application diagram illustrates all connections for easy
•
deployment
All necessary network and monitor cables included
•
Optional 19-inch rack frames hold up to two iTaps
•
Tested and compatible with all major manufacturers’ monitoring devices, includ-
•
ing protocol analyzers, probes, and intrusion detection/prevention systems
Support
Net Optics offers free technical support throughout the lifetime of your pur-
•
chase. Our technical support team is available from 8 am to 5 pm Pacifi c Time,
Monday through Friday at +1 (408) 737-7777 and via email at ts-support@
netoptics.com. FAQs are also available on Net Optics' website at www.netoptics.
com.
3
Memory
All traffi c that passes through the iTap is sent to the monitoring device NIC on
a fi rst-in-fi rst-out basis, including traffi c that is temporarily stored in memory. If
two packets enter at the same time then one packet is processed while the other is
stored briefl y in memory, preventing collisions.
When there is a burst of data, traffi c in excess of the NIC’s capacity is sent to the
iTap’s memory. Memory continues to fi ll until its capacity is reached, or the burst
ends, whichever comes fi rst. For controlling bursts, the iTap has 256 MB of total
memory.
In both cases, the iTap applies a fi rst-in-fi rst-out procedure, processing stored data
before new data from the link. If memory fi lls before the burst ends, the memory
stays fi lled as the stored data is processed – data that leaves the buffer is immedi-
ately replaced. If the burst ends before the memory fi lls, memory clears until the
full memory capacity is available, or until another burst in excess of the NIC’s
capacity requires additional memory.
The following diagrams illustrate a simple example of a 1000 Mbps NIC moving from 80% utilization to 140% utilization, then back to 80% utilization. In this
example, Side A begins as 300 Mbps and Side B is at 500 Mbps, The aggregated
traffi c is 800 Mbps, well below the capacity of the 1000 Mbps NIC.
iTap GigaBit Dual Port Aggregator
Side A
iTap GigaBit Dual
Port Aggregator
TM
Dual Port Aggregator
www.netoptics.com
®
Network
B12A
2BA
1
RESET
GigaBit Copper
LINKACT
LINKACT
LINKACT LINKACT
Monitor
FirewallRouter
Side B
1
Side A +
Side B
Each using a single NIC,
the monitoring devices
both receive all combined
traffic from Side A and
Side B, including physical
Monitoring
layer errors.
Device 1
Monitoring
Device 2
Figure 1: Side A plus Side B is less or equal to 100% of the NIC’s receive capacity
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iTap GigaBit Dual Port Aggregator
The NIC receives 800 Mbps (80% utilization), so no memory is required for the
monitoring device's NIC to process all full-duplex traffi c.
If there is burst of traffi c on Side A of 900 Mbps and Side B remains at 500 Mbps,
the aggregated traffi c equals 1400 Mbps, 400 Mbps over the capacity of the NIC.
The excess traffi c is put in memory on a fi rst-in-fi rst-out basis until either the buf-
fer is full or the burst passes.
Side A
iTap GigaBit Dual
Port Aggregator Tap
TM
Dual Port Aggregator
www.netoptics.com
®
Network
B12A
2BA
1
RESET
GigaBit Copper
LINKACT
LINKACT
LINKACT LINKACT
Monitor
FirewallRouter
Side B
Side A +
Side B
2
Memory
The extra 400 Mbps of traffic
is stored in buffer memory.
Monitoring
Device 1
Memory continues to fill until
capacity is reached, or the
burst ends.
Monitoring
Device 2
Figure 2: Side A plus Side B becomes greater than 100% of the NIC’s receive
capacity
After the burst has passed and the buffers have passed all the stored traffi c, each
monitoring device resumes receiving traffi c directly from the link.
Note: ____________________________________________________________________
Utilization statistics and alarms are monitored before buffering and aggregation.
__________________________________________________________________________
5
Unpacking and Inspection
Carefully unpack the iTap GigaBit Dual Port Aggregator and check for damaged or
missing parts. The iTap ships with the following:
•
iTap GigaBit Dual Port Aggregator (96542iTP or 96547iTP)
•
Two power supplies with cords
•
iTap GigaBit Dual Port Aggregator User Guide
•
iTap Software CD
•
Pads for surface mounting
•
Network and monitor cables
•
RS232 DB-9 cable for use with the Command Line Interface
You may have also ordered a one rack unit panel for rack mounting the iTap
GigaBit Port Aggregator and an extended warranty. Carefully check the packing
slip against parts received.
If any part is missing or damaged, contact Net Optics' Customer Service immediately.
About this Guide
This Guide provides you all the information you need to confi gure and operate the
iTap GigaBit Copper Dual Port Aggregator and the iTap GigaBit Fiber Dual Port
Aggregator. Please read the entire Guide before attempting to install or operate the
iTap.
iTap GigaBit Dual Port Aggregator
The Guide is organized into the following chapters:
Chapter 1 Introduction
•
Chapter 2 Installing the iTap
•
Chapter 3 Using the Front Panel Interface
•
Chapter 4 Using Web Manager
•
Chapter 5 Using System Manager
•
Appendix A Specifi cations and Models
•
Appendix B Command Line Interface
•
This guide can be found in PDF format on the iTap CD.
6
Overview
This chapter describes how to install and connect the iTap GigaBit Dual Port
Aggregator. The procedure for installing the iTap follows these basic steps:
•
•
•
•
•
•
•
•
After the iTap is installed, you can remotely monitor and control the iTap from
Web Manager or System Manager.
iTap Physical Features
Figures 3 and 4 show the front panels of the fi ber and copper versions of the iTap
GigaBit Dual Port Aggregator. Figure 5 shows the rear panel of both models.
iTap GigaBit Dual Port Aggregator
Chapter 2
Installing the iTap
Plan the installation
Confi gure iTap parameters
Mount the iTap
Connect the Management Port
Connect iTap to the network
Connect iTap to the monitoring device(s)
Apply power to the iTap
Check the installation
Power
Link
LEDs
®
www.netoptics.com
2x16 Character Display
Status
LINK
A
B
A
1
B
2
Utilization
Alarms
Figure 3 : 96542iTP Front Panel Features
Reset
Button
Network
2
1
A
RESET
OUT IN OUT IN OUT OUT
Network
Ports
7
B
TM
Dual Port Aggregator
12
Monitor
GigaBit Fiber
Monitor
Ports
iTap GigaBit Dual Port Aggregator
Power
Status
®
www.netoptics.com
2x16 Character Display
Reset
Button
2BA
1
Utilization
Alarms
Figure 4: 96547iTP Front Panel Features
Management
Port
Management Port
for Remote Interfaces
RS232
RS232 Port for
Command Line
Interface
Figure 5: Rear panel features
iTap Port Aggregator LEDs
Link Indicators: If a good link is established, the LED illuminates a steady green.
RESET
Network
Ports
Network
A
LINKACT
B
LINKACT LINKACT
Activity
LED
Monitor
Ports
TM
12
Monitor
Dual Port Aggregator
LINKACT
Link
LED
Redundant
Power Supplies
GigaBit Copper
Activity Indicators: If there is current activity on this link, the LED fl ashes.
Utilization Alarms A and B: These LEDs illuminate red when the threshold
utilization level exceeds the set threshold level. The Utilization Alarm LEDs
remain illuminated until reset with the Reset button or remotely reset via Web
Manager or System Manager.
PWR 1/ PWR 2: Main and Redundant Power. If the iTap is deployed with both
power supplies, both LEDs illuminate when the iTap is connected to power. An off
power LED indicates that the corresponding power supply is not functioning or not
connected.
8
Planning the Installation
Before you begin the installation of your iTap, you should determine the following
information:
•
IP address of the iTap or, if you are deploying multiple iTaps, a range of
IP addresses.
•
Net Mask for the iTaps.
•
IP address of the remote management console, if deployed over a WAN.
•
Gateway to the remote management console, if deployed over a WAN.
Also make sure you have a suitable location to install the iTap(s). For maximum
power redundancy, use two independent power sources.
Confi guring the iTap
The iTap is confi gured with default values that allow you to install the iTap and
then modify parameters from Web Manager or System Manager.
The defaults values are:
IP Address: 10.60.0.123
Netmask: 255.255.0.0
Threshold Port A: 50%
Threshold Port B: 50%
Port A: Gigabit
Port B: Gigabit
CLI username: netoptics
CLI password: netoptics
You can set all parameters, check status, and view statistics from the Command
Line Interface. You can change most settings later from one of the remote interfaces (for more information on remote interfaces, see Chapters 4 and 5).
iTap GigaBit Dual Port Aggregator
Using the Command Line Interface (CLI)
All confi guration options, status, and statistics are accessible from the iTap's
Command Line Interface. You must set a new username and password, IP address
for the iTap, utilization threshold levels for Port A and B, and the current date and
time. Other parameters are optional and dependent on your installation.
9
iTap GigaBit Dual Port Aggregator
For security reasons, some parameters can only be set with the CLI.
Use these commands to:
Set CLI username and password
•
Enable or disable the remote interfaces and display
•
Turn character echo to the terminal emulation software on or off
•
You will fi nd a complete list of CLI commands in Appendix B.
If you wish to disable the Management Port and remote interfaces, you can do so
from the CLI using the Display command.
To access the iTap CLI:
1. Make sure power to the iTap is off.
2. Connect a PC with terminal emulation software, such as HyperTerminal, to the
iTap using the RS232 DB-9 cable supplied with the iTap.
3. Launch terminal emulation software and set the communication parameters to:
19200 baud
8 data bits
No parity
1 stop bit
No fl ow control
3. Connect power to the iTap. The CLI banner and login prompt appears.
Figure 6: Login and Password Prompts
4. Type netoptics and press Enter.
5. At the password prompt, type netoptics and press Enter. The NetOptics:
prompt appears.
10
iTap GigaBit Dual Port Aggregator
To change the username and password:
1. Change the username by typing the following command:
set username <username>
where <username> is your new username.
2. Change the password by typing the following command:
set password <password>
where <password> is your new password.
3. Record the username and password in a secure location.
To set the iTap IP address:
1. Type set ip <ip address> where <ip address> is the IP address you are assign-
ing to the iTap and press Enter.
For example, typing set ip 10.60.0.100 sets the iTap IP address to 10.60.0.100.
To set the utilization threshold levels:
1. Type set threshold port a <level> where <level> is the percentage of the
available bandwidth at which the utilization alarm for Port A is triggered. Press
Enter.
For example, typing set threshold port a 30 sets the alarm threshold level for
traffi c received on Port A to 30%.
2. Type set threshold port b <level> where <level> is the percentage of the
available bandwidth at which the utilization alarm for Port B is triggered. Press
Enter.
For example, typing set threshold port b 30 sets the alarm threshold level for
traffi c received on Port B to 30%.
Tip! _____________________________________________________________________
You can set the utilization threshold levels at any time from the remote interfaces.
See Chapters 4 and 5 for more information.
__________________________________________________________________________
11
iTap GigaBit Dual Port Aggregator
To set the current date and time:
1. Type set time <mm/dd/yyyy-hh:mm:ss> where mm is the month, dd is the day
of the month, yyyy is the year, hh is the hour, mm is minutes of the hour, and ss
is seconds. Press Enter. Time is based on the 24-hour clock.
To display current settings:
1. Type show set and press Enter. The CLI displays the current setting similar to
the example in Figure 7.
Figure 7: Show Set Command Example
To disable the display and remote interfaces:
1. Type show display to view the current setting. The default value is Display:
ON.
2. Type display and press Enter. Access to the tap from remote interfaces will be
blocked and the front panel will not display link utilization or peak information.
3. Type display and press Enter again to restore the display and remote intefaces.
12
iTap GigaBit Dual Port Aggregator
To use the Help command:
1. Type Help at the NetOptics prompt. The list of help topics is displayed.
Figure 8: iTap CLI Help Menu
5. To view the syntax for changing the iTap’s confi guration parameters, type help
set and press Enter.
6. Repeat with the variable of interest to view the syntax for all commands avail-
able from the CLI. For more information on CLI commands, see Appendix B.
Mounting the iTap
The iTap is designed for rack mounting in a two-slot, 19-inch panel. The mounting
panel occupies one rack unit.
To rack mount the iTap:
1. Attach the two-slot panel to your rack using the attached thumbscrews.
2. Slide the iTap into one of the slots and secure with the attached thumbscrews.
3. Make sure that the rack is properly grounded.
The iTap can also be placed on a surface using the pads supplied with the iTap.
13
Connecting the Management Port
To use the remote interfaces you must connect the Management Port to the
network.
To connect the iTap Management Port:
1. Connect a CAT5 cable to the Manangement Port as shown in Figure 9.
2. Connect the other end to a network switch or hub.
iTap GigaBit Dual Port Aggregator
Management
Port
RS232
To network switch or hub
Figure 9: Connecting the Management Port
Connecting to the Network
The iTap comes with two network cables ready for iTap installation.
To connect the iTap to your network:
1. Connect Network Port A to the appropriate network device using the cables
supplied with your iTap.
2. Connect Network Port B to the appropriate network device using the cables
supplied with your iTap.
3. Verify that the iTap Network Ports are cabled in-line between two devices.
14
www.netoptics.com
iTap GigaBit Dual Port Aggregator
TM
®
LINK
A
2
A
B
1
1
B
2
RESET
Network
A
OUT IN OUT IN OUT OUT
B
12
Dual Port Aggregator
Monitor
GigaBit Fiber
To Switch, Server, or Router (DCE)
To Switch, Server, or Router (DTE)
Figure 10: 96542iTP Network Connections
®
2BA
1
RESET
www.netoptics.com
Rx
B
A
Network
LINKACT
B
LINKACT LINKACT
Tx
A
TM
12
Monitor
Dual Port Aggregator
LINKACT
GigaBit Copper
Figure 11: 96547iTP Network Connections
15
To DTE network switch or routerTo DCE network switch or router
iTap GigaBit Dual Port Aggregator
Connecting to the Monitoring Devices
The iTap comes with two monitor cables ready for iTap installation.
To connect the iTap to your monitoring device:
1. Connect Monitor Port 1 to the appropriate monitor using the cables supplied
with your iTap.
2. Connect Monitor Port 2 to the appropriate monitor using the cables supplied
with your iTap.
www.netoptics.com
®
LINK
A
2
A
B
1
1
B
2
RESET
Network
A
OUT IN OUT IN OUT OUT
B
TM
Dual Port Aggregator
12
Monitor
GigaBit Fiber
To Monitoring Device NIC (Rx)
To Monitoring Device NIC (Rx)
Figure 12: 96542iTP Monitor Connections
16
®
2BA
1
RESET
www.netoptics.com
To monitoring device 1
To monitoring device 2
Figure 13: 96547iTP Monitor Connections
Connecting Power
For power fault protection, the iTap has redundant power supplies. The second
power supply is available to support the fl ow of traffi c to the monitoring device in
the event that the fi rst power supply becomes unavailable. If the fi rst power supply
is unavailable, the second power supply provides all power for the iTap. Even if no
power is available to the passive iTap, network traffi c fl ows uninterrupted.
iTap GigaBit Dual Port Aggregator
TM
A
Network
LINKACT
B
LINKACT LINKACT
12
Monitor
Dual Port Aggregator
LINKACT
GigaBit Copper
If you plan to use redundant power, make sure that you connect the power supplies
to two separate, independent power sources. After connecting the power supplies,
verify that at least one Power LED is illuminated.
17
iTap GigaBit Dual Port Aggregator
Management
Port
Figure 14: Connecting Power
Checking the Installation
After you have connected the iTap to the network, monitoring device and power,
verify that the iTap is functioning correctly.
Check that at least one power LED is illuminated.
•
Check the link status LEDs located on the front panel to verify that traffi c is
•
passing through the iTap.
Check the display for utilization and peak information.
•
Verify that the monitoring device is receiving traffi c from the iTap.
•
Verify that the Management Port is functional by typing the iTap's IP address in
•
your Web browser. Net Optics' Web Manager should appear. If it does not, check
the Management Port cables and connections and verify that the Display option
in the CLI is set to ON.
RS232
18
Overview
This chapter describes how to interpret and work with the front panel features of
the iTap GigaBit Dual Port Aggregator. The following topics are covered:
•
•
•
The iTap front panel provides information in two ways. The displays shows utilization and peak information and the LEDs show link status and alarm conditions.
The front panel also has a recessed reset button to clear the peak data.
Display
The front panel of the iTap provides network traffi c information on a 2x16
character LCD. After a bootup message, the display scrolls through the following
messages, advancing every fi ve seconds:
Display Message Description
% Util A = XX% Percent of Network Port A bandwidth being used by
% Util B = XX% Percent of Network Port B bandwidth being used by
Peak A = XX% Incoming traffi c peak on Network Port A as percent of
Peak B = XX% Incoming traffi c peak on Network Port B as percent of
Time A = AAA, hh:
mm:ss
Time B = AAA, hh:
mm:ss
iTap GigaBit Dual Port Aggregator
Chapter 3
Using the Front Panel Interface
Display
LED indicators
Reset Button
incoming traffi c
incoming traffi c
bandwidth
bandwidth
The day and time of the highest peak on Network Port A
since last reset where AAA is the day of the week and hh:
mm:ss is hours, minutes, and seconds on a 24-hour clock
The day and time of the highest peak on Network Port B
since last reset where AAA is the day of the week and hh:
mm:ss is hours, minutes, and seconds on a 24-hour clock
19
The percentage utilization data on the display is refreshed every second.
Network peaks are given as a percent of utilization and refl ect the highest peak
recorded since the last reset. The day and time information refl ects the highest
peak event since reset. You can set the iTap's 24-hour clock through the CLI or
remote interfaces.
For example:
If you have set the thresholds for 30% utilization on Friday and during the weekend several peaks over this level occur, the iTap provides information only on the
highest peak event.
If data is not displaying as expected, check the Network Port connectors for link
status and activity. Also check the status of the Display command using the CLI
(see page 12).
Utilization Alarm LEDs
There are two LEDs indicating when the utilization levels have exceeded the
threshold. There is one LED for incoming traffi c on each Network Port. When a
Utilization Alarm LED is red, it indicates that the threshold level was exceeded for
that port since the last reset. The LEDs remain illuminated until reset via the reset
button or remote interfaces.
iTap GigaBit Dual Port Aggregator
Link LEDs
The RJ45 connectors have two LEDs for link status. If a good link is established,
the right LED illuminates a steady green. If there is current activity on this link,
the left LED fl ashes.
Power LEDs
If the iTap is deployed with both power supplies, both power LEDs illuminate
when the iTap is connected to power. If an LED is off, the corresponding power
supply is not functioning.
Reset Button
Use the Reset button to quickly reset the traffi c peak and time on the display and
the Utilization Alarm LEDs. To prevent accidental resets, the Reset button is
recessed from the front panel. To push the Reset button, use a thin, rigid tool such
as an unbent paperclip.
20
iTap GigaBit Copper Port Aggregator
Chapter 4
Using Web Manager
Overview
This chapter describes how to monitor and control individual iTap GigaBit Port
Aggregators using Web Manager. The following topics are covered:
•
Accessing Web Manager
•
Status
•
Statistics
•
Confi guration
The iTap GigaBit Port Aggregator has built-in support for remote control from any
computer with an Internet browser and access to the iTap’s IP address. Web Manager is the browser-based interface that allows you to change settings, view status,
and retrieve data remotely.
Note: ____________________________________________________________________
To access Web Manager, the Display option in the CLI must be set to ON. For
more information, see Using the Command Line Interface on page 9.
__________________________________________________________________________
Accessing Web Manager
Web Manager is a browser-based interface that provides access to an iTap that has
an IP address accessible from the computer running Web Manager. Web Manager
supports all common browsers.
To access Web Manager:
1. Open an Internet browser on your computer.
2. Enter the iTap’s IP address in the URL box and press Enter. The default IP
address is 10.60.0.123. The Web Manager page appears as shown in Figure 15.
21
iTap GigaBit Copper Port Aggregator
Figure 15: Web Manager Page
The following table explains the fi elds in Web Manager. To save any changes to
the iTap, you must click Submit Changes.
22
iTap GigaBit Copper Port Aggregator
Viewing System Status
You can view status information of the iTap and ports. System Status indicates if
the iTap is functioning correctly. If the System Status is DOWN, there is an internal error. For more information, contact Net Optics' Technical Support.
In addition to the System Status, you can view the status of each iTap port and
power supply as shown in Figure 16.
Figure 16: iTap System, Link, and Power Status
The following table explains the status fi elds.
Field Name Value Description
System Status UP/DOWN Down indicates an internal error. Call Net Optics
Port A Link Status UP/DOWN Indicates the state of incoming traffi c on Port A
Port B Link Status UP/DOWN Indicates the state of incoming traffi c on Port B
Port 1 Link Status UP/DOWN Indicates the state of communication on Port 1
Port 2 Link Status UP/DOWN Indicates the state of communication on Port 2
Power Supply 1
Status
Power Supply 2
Status
ON/OFF Indicates if the iTap is receiving power from
ON/OFF Indicates if the iTap is receiving power from
Customer Service for assistance
Power Supply 1
Power Supply 2
If a link is down, check the Port Parameters in the confi guration section and submit
correct settings if needed. If the link is still down, verify the communication
settings of the connected devices are correct and check the cables.
23
Viewing Statistics
Web Manager lists incoming traffi c statistics for both Port A and Port B as shown
in Figure 17.
Figure 17: iTap Statistics
The following table explains the traffi c statistics available from Web Manager. The
iTap updates statistics every 15 seconds. All counters refl ect counts since the last
statistics reset.
Field Name Description
Peak Rate (%) Highest peak since last reset
Peak Date & Time When the highest peak occurred
Current Utilization Rate (%) Utilization level of the incoming traffi c on the port
Total Packets Total packets received
Total Bytes Total bytes received
CRC Errors Number of CRC errors
Collision Packets Number of packet collisions
Undersize Packets Number of undersize packets
Oversize Packets Number of oversize packets
iTap GigaBit Copper Port Aggregator
To update the statistics displayed, refresh your browser.
24
Confi guring the iTap
Web Manager has both read-only and read/write fi elds. Use the read/write fi elds
in the iTap Confi guration section of the Web Manager page to set confi guration
parameters (see Figure 18).
Figure 18: iTap Confi guration
The following table explains each available option. To make your changes take
effect, click Submit Changes at the bottom of the page.
Field Name Function/Value Description
IP Address 0.0.0.0 IP address of the iTap. The default
Net Mask 0.0.0.0 Displays current Net Mask of the
Manager IP
Address
Gateway IP
Address
iTap GigaBit Copper Port Aggregator
IP address is 10.60.0.123. You can
change the IP address by typing a
new IP address in the text box.
iTap. The default Net Mask is
255.255.0.0. You can change the IP
address by typing a new Net Mask in
the text box.
0.0.0.0 IP Address of the computer running
Net Optics System Manager over a
WAN. You can change the IP address
by typing a new IP address in the
text box.
0.0.0.0 Displays current IP Address of the
current WAN Gateway. You can
change the Gateway by typing a new
IP address in the text box.
25
iTap GigaBit Copper Port Aggregator
Field Name Function/Value Description
Port A Parameters Gigabit
Port B Parameters Gigabit
Port 1 Parameters Gigabit
Port 2 Parameters Gigabit
Port A Peak Rate
Reset
Port B Peak Rate
Reset
Port A Utilization
Threshold (%)
Port B Utilization
Threshold (%)
Reset Port A
Statistics
Reset Port B
Statistics
Current Date and
Time
Auto-negotiation
100BT Full Duplex
100BT Half Duplex
10BT Full Duplex
10BT Half Duplex
Disable
Auto-negotiation
100BT Full Duplex
100BT Half Duplex
10BT Full Duplex
10BT Half Duplex
Disable
Auto-negotiation
100BT Full Duplex
100BT Half Duplex
10BT Full Duplex
10BT Half Duplex
Disable
Auto-negotiation
100BT Full Duplex
100BT Half Duplex
10BT Full Duplex
10BT Half Duplex
Disable
No/Yes To reset the Peak data for Port A,
No/Yes To reset the Peak data for Port B,
Utilization Level
Alarm
Utilization Level
Alarm
No/Yes To zero all counters for Port A, select
No/Yes To zero all counters for Port B, select
XX/XX/XXXX
XX:XX:XX
The iTap GigaBit Port Aggregator is a
single-speed device. Leave parameter at the default GigaBit setting.
You have the option of disabling Port
A, however all incoming traffi c to Port
A will be lost.
The iTap GigaBit Port Aggregator is a
single-speed device. Leave parameter at the default GigaBit setting.
You have the option of disabling Port
B, however all incoming traffi c to Port
B will be lost.
The iTap GigaBit Port Aggregator is a
single-speed device. Leave parameter at the default GigaBit setting.
You have the option of disabling Port
1 to prevent unauthorized access to
the Monitor Port.
The iTap GigaBit Port Aggregator is a
single-speed device. Leave parameter at the default GigaBit setting.
You have the option of disabling Port
2 to prevent unauthorized access to
the Monitor Port.
select Yes and click Submit Changes.
select Yes and click Submit Changes.
Enter the utilization level that will
trigger a threshold alarm for Port A.
Enter the utilization level that will
trigger a threshold alarm for Port B.
Yes and click Submit Changes.
Yes and click Submit Changes.
Enter your local date and time for
traffi c peak timestamps.
26
Using System Manager
Overview
This chapter describes how to install and use Net Optics' System Manager, which
allows you to change settings, view status, and retrieve data remotely from multiple Net Optics iTap devices. The following topics are covered:
•
Installing System Manager
•
Exploring System Manager
•
Creating a Group
•
Adding and Deleting iTaps
•
Using the Status Tab
•
Using the Confi guration Tab
Installing System Manager
The installation executable fi le for System Manager can be found on the CD
included with the iTap.
To install System Manger:
1. Locate Setup.exe on the CD and double click it. The License Agreement dialog
box appears as shown in Figure 19.
iTap GigaBit Dual Port Aggregator
Chapter 5
Figure 19: Net Optics System Manager License Agreement
27
iTap GigaBit Dual Port Aggregator
3. After reading the agreement, select I Agree and click Next to install System
Manager. The Welcome dialog box appears as shown in Figure 20.
Figure 20: Welcome Dialog Box
2. Click Next. The Select Installation Folder dialog box shown in appears.
Figure 21: Select Installation Folder
3. To install in the default folder, make no changes to the path in the Folder: text
box. To install in a different location, either type the path in the Folder: text
box or click Browse to fi nd another location. To check the space available for
System Manager on the selected drive, click Disk Cost.
28
iTap GigaBit Dual Port Aggregator
4. To limit access to System Manager to the current user of the PC, select Just
Me. To allow access to any user logged into the PC, select Everyone.
5. Click Next. The Confi rm Installation dialog box shown in Figure 22 appears.
To continue the installation, click Next. The Progress dialog box appears as
shown in Figure 23.
Figure 22: Confi rm Installation
Figure 23: Installation Progress
29
iTap GigaBit Dual Port Aggregator
6. If you want to stop the installation, click Cancel. When the installation is complete, the Installation Complete dialog box appears as shown in Figure 24.
Figure 24: Installation Complete
7. Click Close. System Manager is now installed on your computer and there is a
Net Optics shortcut icon on your desktop.
30
iTap GigaBit Dual Port Aggregator
Exploring System Manager
This section explains the features and functions of System Manager. With System
Manager you can:
•
Create iTap groups
•
Add and delete iTaps from the system
•
Remotely confi gure iTaps
•
View traffi c utilization and peaks
•
View traffi c statistics
NOTE ___________________________________________________________________
To access the iTap with System Manager, the Display option in the CLI must be set
to ON. For more information, see Using the Command Line Interface on page 9.
__________________________________________________________________________
To access System Manager:
1. Double click the System Manager icon on your PC desktop. The initial window,
shown in Figure 25, will not show any iTaps.
System Frame Information Frame
Figure 25: Initial window
The System Frame displays iTaps and iTap Groups as you add them to the system.
The Information Frame displays Confi guration and Status information for indi-
vidual iTaps.
31
iTap GigaBit Dual Port Aggregator
Tip! _____________________________________________________________________
To use pop-up menu shortcuts, click your right mouse button in the System Frame.
__________________________________________________________________________
Using the Toolbar
Figure 26 shows the System Manager toolbar.
Figure 26: Toolbar
The table below describes the icons found on the toolbar.
Tool Description
New iTap Add iTaps to a group
New Group Create an iTap group
Delete Delete iTap from the system
Modify Change the iTap name, IP address, model, and add notes
Refresh Refresh the data display
Exit Close Net Optics System Manager
About View information about System Manager
Creating a Group
You can organize iTap devices into groups for quick access. You must create a
Group before you can add iTaps to your system.
To create an iTap group:
1. Click New Group in the toolbar as shown in Figure 27. A new group bar
appears in the System Frame as shown in Figure 28.
Figure 27: New Group
32
Figure 28: Group Bar
2. Type the name of the new group and press Enter.
Deleting a Group
You can delete a group however, all iTaps in that group will also be deleted.
To delete a Group:
1. Right click on the group bar of the group you want to delete.
2. Select Delete from the pop-up menu. The Group and all associated iTaps are
deleted from the system.
Adding iTaps
To create a system in System Manager, you must add iTaps to System Manager.
Once you have added an iTap, you can confi gure, modify, and delete it from the
system.
iTap GigaBit Dual Port Aggregator
To add an iTap to the system:
1. Select the Group to which you want to add an iTap by clicking the group bar.
2. Click New iTap in the toolbar as shown in Figure 29. The New iTap dialog box
appears as shown in Figure 30.
Figure 29: Adding a New iTap
33
iTap GigaBit Dual Port Aggregator
Figure 30: New iTap
2. Enter a name for the iTap you are adding in the iTap Name text box. Each iTap
Name in the system must be unique.
3. Enter the IP address of the iTap in the IP Address text box. Make sure the IP
address is unique on the network.
4. Select your model of the iTap from the Product drop-down list.
5. Enter any relevant information about the iTap in the Notes text box.
6. Check your settings and click Create. The System Manger now shows the iTap
in the system similar to Figure 31.
34
iTap GigaBit Dual Port Aggregator
Figure 31: Net Optics System Manager with iTap
The indicator to the right of the iTap picture blinks green when System
Manager is communicating with the iTap. If the indicator blinks red, check that
the iTap is connected to the network and verify the confi guration information.
7. Repeat Steps 1-6 for each iTap you are adding.
Tip! _____________________________________________________________________
To change the order in which iTaps appear in the System Frame, click and drag
iTaps into the desired order.
__________________________________________________________________________
35
Deleting an iTap
You can delete an iTap from System Manager when you remove an iTap from your
network. If you have removed an iTap from the network, System Manager continues to poll the iTap’s IP address for data until you delete the iTap from System
Manager.
To delete an iTap from System Manager:
1. Select the iTap you want to delete by clicking its icon.
2. Click Delete in the toolbar. A confi rmation dialog box appears.
Figure 32: Delete Confi rmation
3. Click Yes to delete the iTap from System Manager.
iTap GigaBit Dual Port Aggregator
36
Confi guring an iTap
You can set confi guration parameters of an iTap in the system from the Confi gure
tab.
To confi gure the iTap:
1. Click on the icon of the iTap you want to confi gure and click the Confi gure tab
as shown in Figure 33.
iTap GigaBit Dual Port Aggregator
Figure 33: iTap Confi gure Tab
2. For the parameter you wish to confi gure, click on the corresponding value fi eld.
3. Select an option from the drop-down list or enter a new value from your
keyboard.
4. The new confi guration parameters take effect next time System Manager polls
the iTap.
37
Viewing iTap Information
System Manager allows you to view the status of the iTap, traffi c statistics col-
lected by the iTap, and the current iTap confi guration information.
To view iTap information:
1. Click the image of the iTap you want to view in the System Frame. A window
similar to Figure 34 appears.
iTap GigaBit Dual Port Aggregator
Figure 34: iTap Status Tab
38
iTap GigaBit Dual Port Aggregator
The Status tab is a read-only list of information from the iTap. Use the scroll bar
and arrows to view the entire list.
TIP! _____________________________________________________________________
Fields that have been updated since the last refresh appear with a circle and arrow
just to the left of the value fi eld.
__________________________________________________________________________
To shorten the list by port, click the View type drop-down list as shown in Figure
35 and select the port you want to view.
Figure 35: View Type List
39
Modifying an iTap
You can change the IP address and other basic iTap confi guration parameters
from the Modify iTap dialog box.
To modify the iTap confi guration:
1. Click on the image of the iTap you want to change in the System Frame.
2. Click Modify in the toolbar. The Modify iTap dialog box appears as shown in
Figure 36.
iTap GigaBit Dual Port Aggregator
Figure 36: Modify iTap
3. Make the desired changes and click Save Change.
40
Specifi cations
Electrical
Power Supply Input
100-240VAC, 0.5A, 47-63Hz
Power Supply Output
12V, 1.5A
Environmental
Operating Temperature
0˚C to 55˚C
Storage Temperature
-10˚C to 70˚C
Relative Humidity
10% min, 95% max, non-condensing
Mechanical
Dimensions
1.3125” high x 12” deep x 8.75” wide
96542iTP Connectors
(1) DB9 (RS232 confi guration port)
(1) RJ45 (management port)
(2) LC (monitoring ports)
(2) LC (network ports)
96547iTP Connectors
(1) DB9 (RS232 confi guration port)
(1) RJ45 (management port)
(2) RJ45 (monitoring ports)
(2) RJ45 (network ports)
Indicators
(1) 2x16 Character LCD
(3) Link LEDs 96542iTP, (8) Link LEDs 96547iTP
(2) Threshold Alarm LEDs
(2) Power LEDS
iTap GigaBit Dual Port Aggregator
Appendix A
Specifi cations and Models
41
iTap GigaBit Dual Port Aggregator
Optical Interface (96542iTP)
Fiber Type
Corning Multimode 62.5/125μm, wavelength 850nm
Split Ratio Network Port Insertion Loss Monitor Port Insertion Loss
70/30 ≤ 2.4 dB ≤ 6.3 dB
60/40 ≤ 3.1 dB ≤ 5.1 dB
50/50 ≤ 4.5 dB ≤ 4.5 dB
Transceiver Specifi cations
GigaBit SX 850nm, VCSEL, supports 62.5/125μm
Monitor Port Output Power
-9.5 dBm
Split Ratios
70/30, 60/40, and 50/50
Copper Interface (96547iTP)
Copper Cable Type:
22-24 AWG Unshielded twisted pair cable, CAT5/CAT5e
Link Distance Supported:
100 meters
Memory
256MB buffer memory
Software
iTap Command Line Interface
Any terminal emulation software
Web Manager
Any browser
Net Optics System Manager
Windows 98, Windows 2000, Windows XP
WiFi
Standard
Conforms to IEEE 802.11b, 11 Mbps
Range (typical)
Indoors: 50 feet
Outdoors: 100 feet
42
Available Models
Models
96542iTP iTap GigaBit Fiber Dual Port Aggregator
96547iTP iTap GigaBit Copper Dual Port Aggregator
Wireless Option
Accessories
RK-iTP2 Two slot rack-mount panel
iTap GigaBit Dual Port Aggregator
43
iTap GigaBit Dual Port Aggregator
Appendix B
Command Line Interface
Command Sub-Command Syntax Description
Help Set help set Displays the set command
Reset help reset Displays the reset command
Show help show Displays the show command
Echo help echo Displays the echo command
Display help display Displays the display com-
Set IP set ip <address> Where <address> is the ip
Netmask set netmask
<address>
Gateway set gateway
<address>
Manager set manager
<address>
Parameter Port set parameter port
<port ID>
<parameter>
Threshold Port set threshold
<port ID>
<parameter>
Time set time
<date & time>
Username set username
<username>
Password set password
<password>
options.
options.
options.
options.
mand options.
address of the iTap.
Where <address> is the ip
address netmask.
Where <address> is the ip
address of the gateway.
Where <address> is the
ip address of the remote
manager.
Where <port ID> is A, B, C,
or D and <parameter> is
0 = GigaBit (other variables
not applicable).
Where <port ID> is A or B
and <parameter> is 0 to
100% of available bandwidth.
Where <date & time> is
mm/dd/yyyy-hh:mm:ss.
Where <username> is the
authorized user's name, 8
characters or less.
Where <password> is the
authorized user's password,
8 characters or less.
44
iTap GigaBit Dual Port Aggregator
Command Sub-Command Syntax Description
Reset Peak reset peak
<port ID>
Statistics reset statistics port
<port ID>
Storage reset storage Resets confi guation to fac-
Show Set show set Displays currents settings.
Status show status Displays iTap status.
Statistics show statistics
<port ID>
Power show power Displays power status.
Display show display Displays the display setting.
User show user Displays current user logged
Echo n/a echo <on/off> Echo off stops typed charac-
Display n/a display Toggles the front panel
Where <port ID> is A or B.
Where <port ID> is A or B.
tory defaults.
Where <port ID> is A or B.
Display OFF disables remote
interfaces and front panel
LCD.
into the CLI.
ter from being displayed on
the screen.
display and remote interface
on and off.
45
Notes:
iTap GigaBit Dual Port Aggregator
46
www.netoptics.com
© 2006 by Net Optics, Inc. All Rights Reserved.
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