Net Optics iTap Port Aggregator Manual
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Net Optics iTap Port Aggregator Manual

10/100/1000baset
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The World's Only Intelligent Tap
iTap 10/100/1000BaseT Port Aggregator
Aggregation + information =
network monitoring flexibility
Access
• Real time traffic utilization levels
• Size and time of the greatest traffic peaks
• Counters for total packets, total bytes,
CRC errors, collisions, and more
• Status for system, link, and power
Remote
• Browser-based Web Manager
• Management Information Base (MIB) for
third-party SNMP tools
• SNMP tool, System Manager
• SNMP traps indicate status changes for
system, link, power, and threshold
• Wireless option (IEEE 802.11b,11Kbps)
Control
• Turn off Management and Monitor Ports
• Set utilization alarm threshold
• Reset statistics counters and peak data
• Turn off LCD information
Easy to Use
• Uses only one monitoring device NIC
• At-a-glance monitoring from front panel
• Completely passive and device neutral
• Cables included
• Application diagram shows all connections
disponible sur
www.netwalkerstore.com
(cliquer ici)
intelligent tap
Intelligent Tap
TM
The iTap Port Aggregator makes network
monitoring easier. The powerful combi-
nation of a permanent, passive access
point and remote monitoring of key traffic
indicators increases your management
options and speeds response to troubled
links. When an iTap Port Aggregator
indicates high utilization or CRC errors are
occurring on a critical network link, you
are given timely warning without relying
on other time-consuming tools.
The iTap Port Aggregator displays the link
utilization level in both directions in real
time, with the size and time of the last
peak, right on the front panel. The iTap
Port Aggregator is accessible from remote
interfaces that provide information and
control from anywhere in the network.
The iTap Port Aggregator gives you the
information and the passive access point
you need to respond quickly to network
events.
For greater flexibility and response speed,
use iTap Port Aggregators with Net
Optics' SpyderSwitches and control the
deployment of your analyzers from one
point without disturbing a single network
connection.
Best in Aggregation
The iTap Port Aggregator combines and
regenerates both directions of a full-duplex
stream, sending all aggregated traffic out
one or two separate passive monitoring
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 traffic has been aggregated to
a single flow, 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.
With its visual display, remote interfaces,
and well-buffered aggregation, Net Optics'
iTap Port Aggregator creates an entirely
new category of passive access devices.
®

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Summary of Contents for Net Optics iTap Port Aggregator

  • Page 1 • Management Information Base (MIB) for third-party SNMP tools occurring on a critical network link, you iTap Port Aggregator enables one or two are given timely warning without relying devices to simultaneously monitor a full- • SNMP tool, System Manager on other time-consuming tools.
  • Page 2 For high-load links, the iTap Current utilization is available at a glance The iTap Port Aggregator records the level Port Aggregator is available with 1GB of of the highest peak along with the date memory.
  • Page 3 You have the option of setting the iTap status, and retrieve data remotely with Net Optics iTap devices in the network. Port Aggregator so that it will not display simple-to-use controls. When you access...

  • Page 4: Features And Benefits

    Net Optics Web Manager Without any specialized software, you can access the traffic information monitored by any iTap Port Aggregator. All you need is a computer with a browser and access to the IP address of the iTap Port Aggregator. No matter where you are, you can control your iTap Port Aggregator and monitor traffic information.
  • Page 5 100 percent, the Tap first Device 1 processes the packets that were stored in memory. As long as the NICʼs utilization remains below 100 percent, Monitoring this process continues uninterrupted Device 2 until the memory clears. Copyright © 1996-2006 Net Optics, Inc.

  • Page 6: User Guide

    User Guide iTap Dual Port Aggregator disponible sur www.netwalkerstore.com (cliquer ici) Doc. PUBITPPADU Rev. 3, 11/06...
  • Page 7 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.

  • Page 8: Table Of Contents

    iTap Dual Port Aggregator Contents Chapter 1 Introduction Overview ............1 Memory .
  • Page 9 iTap Dual Port Aggregator Chapter 4 Using Web Manager Overview ............22 Accessing Web Manager .

  • Page 10: Overview

    GigaBit Dual Port Aggregator. Net Optics' GigaBit Dual Port Aggregator Taps provide ultra-efficient 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.
  • Page 11 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.
  • Page 12 Net Optics' Management Information Base (MIB) file. 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.

  • Page 13: Memory

    iTap Dual Port Aggregator Memory All traffic that passes through the iTap is sent to the monitoring device NIC on a first-in-first-out basis, including traffic that is temporarily stored in memory. If two packets enter at the same time then one packet is processed while the other is stored briefly in memory, preventing collisions.
  • Page 14 iTap 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 traffic. If there is burst of traffic on Side A of 900 Mbps and Side B remains at 500 Mbps, the aggregated traffic equals 1400 Mbps, 400 Mbps over the capacity of the NIC.

  • Page 15: Unpacking And Inspection

    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 immedi- ately. Available Models...

  • Page 16: Installing The Itap

    iTap Dual Port Aggregator Chapter 2 Installing the iTap 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: • Plan the installation • Configure iTap parameters •...
  • Page 17 iTap Dual Port Aggregator Monitor Power Reset Network Ports Ports Status Button Dual Port Aggregator Network ® GigaBit Copper RESET LINK LINK LINK LINK www.netoptics.com Monitor 2x16 Character Display Link Utilization Activity Alarms Figure 4: ITP-PAD-GCU Features Monitor Power Network Reset Ports Ports...

  • Page 18: Sfp Installation (Fiber Model)

    (SFP) on the Monitor Port. You can order conver- sion kits which include the singlemode fiber, multimode fiber, GigaBit copper SFP and appropriate cable from Net Optics. For ordering information, see Specifications on page 42. To change the SFP: 1.

  • Page 19: Planning The Installation

    • Elevated Operating Ambient Temperature If a Net Optics device is installed in a closed or a multi-rack assembly, the operat- ing ambient temperature of the rack environment may be greater than the operating ambient temperature of the room.

  • Page 20: Configuring The Itap

    iTap Dual Port Aggregator Configuring the iTap The iTap is configured 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...
  • Page 21 iTap Dual Port Aggregator 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.
  • Page 22 iTap Dual Port Aggregator 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: Figure 8: Show Set Command Example 1.
  • Page 23 iTap 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.

  • Page 24: Mounting The Itap

    iTap Dual Port Aggregator 3. 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.

  • Page 25: Connecting To The Network

    iTap Dual Port Aggregator Connecting to the Network Dual Port Aggregator ® GigaBit Fiber Network LINK RESET Monitor www.netoptics.com To Switch, Server, or Router (DCE) To Switch, Server, or Router (DTE) Figure 11: ITP-PAD-SX-SFP Network Connections Dual Port Aggregator Network ®...

  • Page 26: Connecting To The Monitoring Device

    iTap Dual Port Aggregator 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.
  • Page 27 iTap Dual Port Aggregator Dual Port Aggregator Network ® GigaBit Copper RESET LINK LINK LINK LINK www.netoptics.com Monitor To monitoring device 1 To monitoring device 2 Figure 14: ITP-PAD-GCU, ITP-PAD-CU3 Monitor Connections To connect the iTap to your monitoring device: 1.

  • Page 28: Connecting Power

    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...

  • Page 29: Using The Front Panel Interface

    iTap Dual Port Aggregator Chapter 3 Using the Front Panel Interface 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: • Display • LED indicators •...

  • Page 30: Utilization Alarm Leds

    iTap Dual Port Aggregator The percentage utilization data on the display is refreshed every second. Network peaks are given as a percent of utilization and reflect the highest peak recorded since the last reset. The day and time information reflects the highest peak event since reset.

  • Page 31: Using Web Manager

    iTap Dual 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 • Configuration 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.
  • Page 32 iTap Dual Port Aggregator Figure 16: Web Manager Page The following table explains the fields in Web Manager. To save any changes to the iTap, you must click Submit Changes.

  • Page 33: Viewing System Status

    If the System Status is DOWN, there is an inter- nal 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 17.

  • Page 34: Viewing Statistics

    iTap Dual Port Aggregator Viewing Statistics Web Manager lists incoming traffic statistics for both Port A and Port B as shown in Figure 18. Figure 18: iTap Statistics The following table explains the traffic statistics available from Web Manager. The iTap updates statistics every 15 seconds.

  • Page 35: Configuring The Itap

    Net Mask in the text box. Manager IP 0.0.0.0 IP Address of the computer running Address Net Optics System Manager over a WAN. You can change the IP address by typing a new IP address in the text box. Gateway IP 0.0.0.0...
  • Page 36 iTap Dual Port Aggregator Field Name Function/Value Description Port A Parameters Gigabit The iTap GigaBit Port Aggregator is a Auto-negotiation single-speed device. Leave param- 100BT Full Duplex eter at the default GigaBit setting. 100BT Half Duplex You have the option of disabling Port 10BT Full Duplex A, however all incoming traffic to Port 10BT Half Duplex...

  • Page 37: Using System Manager

    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 mul- tiple Net Optics iTap devices. The following topics are covered: •...
  • Page 38 iTap 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 21. Figure 21: Welcome Dialog Box 2. Click Next. The Select Installation Folder dialog box appears. Figure 22: Select Installation Folder 3.
  • Page 39 iTap 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 Confirm Installation dialog box shown in Figure 23 appears. To continue the installation, click Next.
  • Page 40 6. If you want to stop the installation, click Cancel. When the installation is com- plete, the Installation Complete dialog box appears as shown in Figure 25. Figure 25: Installation Complete 7. Click Close. System Manager is now installed on your computer and there is a Net Optics shortcut icon on your desktop.

  • Page 41: Exploring System Manager

    iTap 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 configure iTaps • View traffic utilization and peaks •...

  • Page 42: Creating A Group

    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.

  • Page 43: Deleting A Group

    iTap Dual Port Aggregator Figure 29: 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.
  • Page 44 iTap Dual Port Aggregator Figure 31: 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.
  • Page 45 Dual Port Aggregator Figure 32: 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 configuration information.

  • Page 46: Deleting An Itap

    iTap Dual Port Aggregator 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 con- tinues to poll the iTap’s IP address for data until you delete the iTap from System Manager.

  • Page 47: Configuring An Itap

    iTap Dual Port Aggregator Configuring an iTap You can set configuration parameters of an iTap in the system from the Configure tab. To configure the iTap: 1. Click on the icon of the iTap you want to configure and click the Configure tab shown in Figure 34.

  • Page 48: Viewing Itap Information

    iTap Dual Port Aggregator Viewing iTap Information System Manager allows you to view the status of the iTap, traffic statistics col- lected by the iTap, and the current iTap configuration information. To view iTap information: 1. Click the image of the iTap you want to view in the System Frame. A window similar to the one in Figure 35 appears.
  • Page 49 iTap 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 field.

  • Page 50: Modifying An Itap

    iTap Dual Port Aggregator Modifying an iTap You can change the IP address and other basic iTap configuration parameters from the Modify iTap dialog box. To modify the iTap configuration: 1. Click on the image of the iTap you want to change in the System Frame. 2.

  • Page 51: Specifications And Models

    iTap Dual Port Aggregator Appendix A Specifications and Models Specifications 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”...
  • Page 52 22-24 AWG Unshielded twisted pair cable, CAT5/CAT5e Link Distance Supported: 100 meters Memory ITP-PAD-SX5-SFP, ITP-PAD-GCU (256MB buffer memory) ITP-PAD-CU3 (1GB 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...

  • Page 53: Available Models

    iTap Dual Port Aggregator WiFi Standard Conforms to IEEE 802.11b, 11 Mbps Range (typical) Indoors: 50 feet Outdoors: 100 feet Certifications Fully RoHS compliant Available Models Models ITP-PAD-SX-SFP iTap GigaBit Fiber Dual Port Aggregator ITP-PAD-GCU iTap GigaBit Copper Dual Port Aggregator ITP-PAD-CU3 iTap 10/100/1000 Copper Dual Port Aggregator Wireless Option Accessories...
  • Page 55 © 2005 by Net Optics, Inc. All Rights Reserved.

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