Installation Guide for
4 Station Bypass Switch
with Heartbeat
TM
Doc. PUBBP4HBU Rev 2, 07/07
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
About this Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Product Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Bypass Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Heartbeat Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 Station Bypass Switch with Heartbeat
Conguring the Bypass Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Connecting to the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Connecting to the In-line Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Limitations on Warranty and Liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4 Station Bypass Switch with Heartbeat
PLEASE READ THESE LEGAL NOTICES CAREFULLY.
By using a Net Optics Optical Bypass Switch 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
© 2010 by Net Optics, Inc. Net Optics® is a registered 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 specications 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.
Introduction
Thank you for choosing the most versatile Bypass Switch available today.
Whether you are a novice or an expert, this installation guide is designed to
help answer any questions and provide a quick set-up reference.
Net Optics 4 Station Bypass Switches with Heartbeat provide a permanent and
trouble-free access port for up to four in-line network security and monitoring segments. These Bypass Switches automatically switch network trafc
through added in-line devices or bypass devices that are about to be removed.
With the heartbeat technology, the 4 Station Bypass Switch protects up to four
network trafc links independently against signal loss, power loss and application failure to the attached in-line devices.
Link Fault Protection
The 4 Station Bypass Switch with Heartbeat monitors the attached in-line
device by sending a heartbeat packet to the device. If each Bypass Switch
does not receive the heartbeat back, it automatically switches network trafc
to bypass the unresponsive device—even if the device is still receiving power.
Each Bypass continues to send the heartbeat and restores the trafc through
the in-line device as soon as the link is restored.
Uninterrupted Trafc
The 4 Station Bypass Switch supports fail-open monitoring with any in-line
device when it shares the same power source as the in-line appliance. For
as long as the Bypass Switch is receiving power, it diverts network trafc to
attached in-line devices. In this state, all in-line trafc is routed directly to the
devices connected to the 4 Station Bypass Switch segment.
4 Station Bypass Switch with Heartbeat
When the 4 Station Bypass Switch loses power, in-line trafc continues to
ow through the network links, but is no longer routed through the devices.
This allows the in-line devices to be removed and replaced without network
downtime. Once power is restored to the Bypass Switch, network trafc is
seamlessly diverted to the in-line devices, allowing it to resume their critical
functions.
Three Simple Steps
Three quick steps is all it takes to establish a secure connection point for
inline devices. For special applications, customize the bypass trigger and
Heartbeat rate from an RS232 command line interface.
1
Key Features
Passive, Secure Technology
• Fail-open monitoring with any Gigabit ber or 10/100/1000 Mbps in-line
appliance depending on the model purchased
• Protects against power, link, and application failure
• Increased reliability on critical network links
• High-speed optical switching with minimal insertion loss
• Custom Heartbeat packet option
• Four individually segmented Bypass Switches for greater exibility
• Fully RoHS Compliant
Ease of Use
• LED indicators show power, speed, link, and activity status
• Front-mounted connectors support easy installation and operation
• Compatible with all major manufacturers’ monitoring devices, including
protocol analyzers, probes, and intrusion detection/prevention systems
Support
• Our technical support team is available from 8 am to 5 pm Pacic Time,
Monday through Friday at +1 (408) 737-7777 and via email at
ts-support@netoptics.com. FAQs are also available on at:
www.netoptics.com/support/FAQ
4 Station Bypass Switch with Heartbeat
About this Guide
Part Number Description
BP4-HBCU3 10/100/1000 4 Station Bypass Switch with Heartbeat
BPO4-HBSX-LC GigaBit SX 4 Station Bypass Switch with Heartbeat
BPO4-HBLX-LC GigaBit LX 4 Station Bypass Switch with Heartbeat
BPC4-HB2CU3/2SX (2) GigaBit SX and (2) 10/100/1000 4 Station Bypass
BPC4-HB2CU3/2LX (2) GigaBit LX and (2) 10/100/1000 4 Station Bypass
BPO4-HB2SX/2LX (2) GigaBit SX and (2) GigaBit LX 4 Station Bypass
BPC4-HB2CU3/
250SX
BPO4-HB250SX/
2LX
BPO4-HB50SX-LC GigaBit SX 50um 4 Station Bypass Switch with
Switch with Heartbeat
Switch with Heartbeat
Switch with Heartbeat
(2) GigaBit SX 50um and (2) 10/100/1000 4 Station
Bypass Switch with Heartbeat
(2) GigaBit SX 50um and (2) GigaBit LX 4 Station
Bypass Switch with Heartbeat
Heartbeat
2
Product Diagrams
®
Network Monitor
Network Monitor
Figure 1: Front View (BP4-HBCU3)
21BA
21BA
4 Station Bypass Switch with Heartbeat
Network Monitor
Network Monitor
21BA
21BA
®
Network Monitor
Network Monitor
21BA
21BA
Network Monitor
Network Monitor
21BA
21BA
Figure 2: Front View (BPO4-HBSX-LC, BPO4-HBLX-LC and BPO4-HB2SX/2LX)
Figure 3: Front View (BPC4-HB2CU3/2SX and BPC4-HB2CU3/2LX)
Power 2Power 1
2
1
RS232
2
1
4
3
RS232
RS232
RS232
Figure 4: Rear View (All Models)
3
Bypass Modes
21BA
The 4 Station Bypass Switch with Heartbeat bypasses the attached in-line
device when one of three events occurs:
• Power loss
• Link failure to the Switch segment
• Application failure to the Switch segment
Two LEDs on the front of a Bypass Switch segment indicate whether the
switch is bypassing the connected appliance or not. When the Bypass ON
indicator is illuminated, the bypass switch has not received the heartbeat
packet as expected and is in Bypass Enabled mode. When the Bypass OFF
indicator is illuminated, the bypass switch is in Bypass Disabled mode and
is sending trafc through the attached in-line device. When the switch is in
Bypass Enabled (ON) mode, the switch circuitry re-directs network trafc
around the in-line appliance. In Bypass Enabled mode Network Ports A and B
are connected (see Figure 4).
4 Station Bypass Switch with Heartbeat
Tx Rx Tx Rx Tx Rx Tx Rx
Network Monitor
BA
21
Network Monitor
Single segment Bypass Mode Enabled (ON)
Figure 5: Bypass Enabled
When the switch is in Bypass Disabled (OFF) mode, the switch circuitry
sends network trafc through the in-line appliance. In Bypass Disabled mode,
Network Port A is connected to Monitor Port 1 and Network Port 2 is connected to Monitor Port B (see Figure 5).
Tx Rx Tx Rx Tx Rx Tx Rx
Network Monitor
Network Monitor
Single segment Bypass Mode Disabled (Off)
Figure 6: Bypass Disabled
BA
4
21
21BA
4 Station Bypass Switch with Heartbeat
Heartbeat Bypass per Segment
The 4 Station Bypass Switch with Heartbeat protects against both physical
link failure and application failure on the in-line appliance. The switch checks
the path through the in-line appliance by sending a packet every second from
Monitor Port 1. The bypass switch validates the path when it receives the
packet on the Monitor Port 2. If the bypass switch does not receive the packet
as expected three times in a row, the bypass switch automatically enters Bypass Enabled (ON) mode.You can change the number of the heartbeat packets
required before the bypass switch enters Bypass Enabled mode from the CLI
(see Conguring the Bypass Switch on page 6).
Below is the default IPX heartbeat packet sent once every second from the
Monitor Port 1. You can change the default timing of the heartbeat packet and
the heartbeat packet from the CLI (see Conguring the Bypass Switch on page
6).
Packet Contents (Hex) Description
----------------------------- ----------------
00 50 C2 3C 60 00 MAC DA Net Optics
00 50 C2 3C 60 01 MAC SA Net Optics
81 37 Packet Type IPX
FF FF 00 30 00 00 00 00
40 04 EC A2 C6 13 01 02
C6 13 01 01 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
82 A2 BA 71 CRC
The switch continues to send the heartbeat packet and will return to Bypass
Disabled mode when it receives three consecutive packets on Monitor Port D.
5
Unpacking and Inspection
Unpack the 4 Station Bypass Switch and power supplies provided.
Each 4 Station Bypass Switch is delivered with the following:
• 2 Power supplies
• DB-9 RS232 cables
• 1 Manual
You may have also purchased an extended warranty. If any component is
missing or damaged, contact Net Optics Technical Support immediately.
Conguring the Bypass Switch
This Bypass Switch allows you to set several conguration options and to
display conguration information. You can set:
The frequency of the heartbeat.
This denes the period of time that passes before the switch
considers the packet to have timed out. The default is 1 second.
The number of timeouts allowed.
This is the number of packets missed before the switch bypasses
the IPS (retry count). The default is 3 missed packets.
4 Station Bypass Switch with Heartbeat
Port communication parameters.
You can turn Link Fault Detect and Bypass Detect on or off.
The default is LFD and Bypass Detect off.
A custom heartbeat packet.
You can input a custom heartbeat packet to suit special needs. The
default is the IPX packet shown on page 5.
Fail Mode:
Fail Open - when in Bypass state, data is routed from Port A to B
Fail Closed - when in Bypass state, ports A and B are shut down
Reset to factory defaults.
Use this option to quickly restore the original conguration.
For quick reference, you can display the conguration settings and heartbeat
packet.
6
4 Station Bypass Switch with Heartbeat
Link Fault Detect
You can set the bypass switch to drop the remaining full-duplex link when one
side fails. The Link Fault Detect feature ensures that connected devices are
aware of a failure on both sides of the link.
Bypass Detect
You can set the Monitor Ports to cycle on and off while the bypass switch is
in Bypass Enabled mode. In Bypass Detect mode, the Monitor Ports cycle
through ve seconds off followed by fteen seconds on. The alternating link
status can be used to trigger attached devices to send an alarm to a manage-
ment system every time the bypass switch turns off the Monitor Ports. When
the bypass switch returns to Bypass Disabled mode, the Monitor Ports remain
on and the on/off cycle is discontinued.
Note: ________________________________________________________________
All of the following instructions on pages 7-10 will need to be completed
for each segment of the 4 Station Bypass Switch. Before starting, make sure
power to the bypass switch is disconnected.
______________________________________________________________________
To access a bypass switch segment using CLI:
1. Using the RS232 DB-9 cable provided, connect a PC running terminal
emulation software, such as HyperTerminal to the RS232 port on the rear
panel of the bypass switch.
2. Set the terminal emulation software to the following communication
parameters:
9600 baud
8 data bit
No parity
1 stop bit
No ow control
3. Connect power to the bypass switch. The software compile date and time
is displayed in the terminal emulation software as shown in the example
below.
7
4 Station Bypass Switch with Heartbeat
Compiled on 16-Jan-06 15:35:00
4. Type ? and press ENTER for a list of commands.
The following commands are listed:
a = Set Timeouts
b = Set Conguration
c = Set Heartbeat Packet
d = Show Conguration
e = Show Heartbeat Packet
f = Show Port Status
g = Set Switch Name
z = Reset to Factory Defaults
To set the timeout values:
1. Type a and press Enter to set the timeout values.
2. At the input time out period prompt, enter the number of
seconds between each heartbeat (1-254 seconds). Press Enter.
3. At the input retry count prompt, enter the number of missed
heartbeats allowed before the switch enters Bypass ON mode (1-254).
The input retry count must be greater than or equal to the input timeout.
Press Enter.
Note: ________________________________________________________________
Manufacturing default for Input Timeout Period and Input Retry Count are set
to 1 and 3 respectively.
______________________________________________________________________
To set the LFD and Bypass Detect options:
1. Type b and press Enter.
2. At the Bypass Detect on/o prompt, type 1 to turn on or 0 to turn
off Bypass Detect.
3. At the LFD on/o prompt, type 1 to turn on or 0 to turn off Link Fault
Detect.
To input a custom heartbeat packet:
1. Type c and press Enter. You are prompted for the length of the packet
including header bytes and CRC bytes.
8
4 Station Bypass Switch with Heartbeat
2. Enter the length of your custom packet in decimal format and press Enter.
You are prompted for each packet byte.
3. Enter packet bytes in Hex format in the following order:
Note: ________________________________________________________________
The rst 3 bytes of the Heartbeat Packet are xed.
______________________________________________________________________
MAC DA Net Optics (6 bytes)
MAC SA Net Optics (6 bytes)
Packet Type (2 bytes)
Packet Bytes
CRC (4 bytes)
Alternately you can load the packet as a pre-formatted text le. The text
le should be one byte per line, beginning with a decimal value for the
number of packets followed by hex values for the remaining bytes. Load
the text le at the packet length prompt.
To load a custom packet from byte-by-byte or from a le, you must set the
Line Delay to 1000 milliseconds and the Character Delay to 100 millisec-
onds in your terminal emulation software. If you are using HyperTerminal,
these settings are located in the ASCII Setup dialog box found in File>Prop
erties>Settings>ASCII Setup.
To display the current values:
1. Type d and press Enter. A list similar to the following appears.
Auto Negotiate on or o
1000 Mbps on or o
100 Mbps on or o
10 Mbps on or o
Duplex half or full
LFD
Bypass Detect
Failmode
Time-out Period
Retry Count
Bypass State on or o
Bypass Disabled
9
4 Station Bypass Switch with Heartbeat
To display the current packet:
1. Type e and press Enter. The packet is displayed as shown in the example
below.
packet length = 78
MAC DA 00 50 c2 3c 60 00
MAC SA 00 50 c2 3c 60 01
Packet Type 08 00
45 00 00 3c 18 d2 00 00
80 01 0a 0a 02 01 dc
0a 01 01 12 08 00 37 5c
02 00 14 00 61 62 63 64
65 66 67 68 69 6a 6b 6c
6d 6e 6f 70 71 72 73 74
75 76 77 61 62 63 64 65
66 67 68 69
CRC bb 8e 1c a9
To show port status:
1. Type f and press Enter. Port status for the device is displayed.
Port A Link
Port B Link
Port C Link
Port D Link
To set the Bypass Switch name:
1. Type g and press Enter.
Input 8 Char name:
2. Give the Bypass Switch a name and press Enter
To restore the bypass switch to factory defaults:
1. Type z and press Enter. You are prompted to select which type of packet
you want to restore, IP or IPX.
2. Select 1 to restore defaults with an IP packet or 0 to restore defaults with
an IPX packet.
10
The bypass switch will be reset to the following defaults:
Input Timeout Period: 1
Input Retry Count: 3
LFD: On
Bypass Detect: On
Heartbeat Packet: IPX or IP (dependent on selection made in step 2)
Connecting to the Network
To connect a bypass switch segment to the network:
1. Connect Network Port A to the appropriate switch, server or router device.
This acts as your DCE interface.
2. Connect Network Port B to the appropriate switch, server or router device.
This acts as your DTE interface.
4 Station Bypass Switch with Heartbeat
Network Monitor
BA
Network Monitor
Rx
B
Figure 7: Connecting one Bypass Switch segment to the Network
Tx
A
To Switch, Server, or Router
To Switch, Server, or Router
21
21BA
3. Verify that the bypass switch Network Ports are cabled in-line between two
devices.
4. Repeat steps 1-3 for the remaining segements.
11
4 Station Bypass Switch with Heartbeat
Connecting to the Monitoring Device
To connect a bypass switch segment to the in-line device:
1. Connect Monitoring Port 1 to the appropriate in-line appliance. This acts
as your DCE interface.
2. Connect Monitoring Port 2 to the appropriate in-line appliance.
This acts as your DTE interface.
Network Monitor
BA
Network Monitor
Rx
B
Figure 8: Connecting one Bypass Switch segment to the Monitoring Device
21
21BA
Tx
A
To monitoring device
To monitoring device
3. Verify that the bypass switch Monitoring Ports are cabled in-line to the
attached device.
4. Repeat steps 1-3 for the remaining segments.
5. Connect power to the switch. If you are implementing power fault failover,
make sure you connect the switches' power supplies to the same power
sources that the IPS is using.
12
4 Station Bypass Switch with Heartbeat
Specications
Copper Interface
Cable Type: 22-24 AWG unshielded twisted pair cable, CAT5/CAT5e
Link Distance Supported: 100 meters
Optical Interface
Fiber Type: Multimode: Corning 50 or 62.5/125µm, wavelength, 850nm
Fiber Type: Singlemode: Corning 8.5/125µm, wavelength, 1310nm
Note: ________________________________________________________________
There is no insertion loss when the bypass switch is not receiving power.
______________________________________________________________________
Environmental
Operating Temperature: 0˚C to 40˚C
Storage Temperature: -10˚C to 70˚C
Relative Humidity: 10% min, 95% max, non-condensing
Power
Power Supply: Input Power: 100-240V, 0.5A, 47-63Hz
Output Power: 12V, 7A
Mechanical
Dimensions: 1.75” high x 11.5” deep x 17” wide
Connectors (Depending on model purchased)
Duplex LC connectors (monitoring ports)
Duplex LC connectors (network ports)
RJ45 connectors (monitoring ports)
RJ45 connectors (network ports)
DB9 RS232 connectors (mangement ports)
Certications
Fully RoHS Compliant
13
4 Station Bypass Switch with Heartbeat
Limitations on Warranty and Liability
Net Optics offers a limited warranty for all its products. IN NO EVENT SHALL NET OPTICS, INC.
BE LIABLE FOR ANY DAMAGES INCURRED BY THE USE OF THE PRODUCTS (INCLUDING BOTH HARDWARE AND SOFTWARE) DESCRIBED IN THIS MANUAL, OR BY ANY
DEFECT OR INACCURACY IN THIS MANUAL ITSELF. THIS INCLUDES BUT IS NOT LIMITED TO LOST PROFITS, LOST SAVINGS, AND ANY INCIDENTAL OR CONSEQUENTIAL
DAMAGES ARISING FROM THE USE OR INABILITY TO USE THIS PRODUCT, even if Net
Optics has been advised of the possibility of such damages. Some states do not allow the exclusion
or limitation of implied warranties or liability for incidental or consequential damages, so the above
limitation or exclusion may not apply to you.
Net Optics, Inc. warrants this Optical Bypass Switch to be in good working order for a period of ONE
YEAR from the date of purchase from Net Optics or an authorized Net Optics reseller.
Should the unit fail anytime during the said ONE YEAR period, Net Optics will, at its discretion,
repair or replace the product. This warranty is limited to defects in workmanship and materials and
does not cover damage from accident, disaster, misuse, abuse or unauthorized modications.
If you have a problem and require service, please call 1-888-447-4861 to speak with a technical
support representative. They may provide you with an RMA number, which must accompany any
returned product. Return the product in its original shipping container (or equivalent) insured and
with proof of purchase.
Additional Information
Net Optics, Inc. reserves the right to make changes in specications 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. Net Optics is not responsible for typographical errors.
THE WARRANTY AND REMEDIES SET FORTH ABOVE ARE EXCLUSIVE AND IN LIEU OF
ALL OTHERS, EXPRESS OR IMPLIED. No Net Optics reseller, agent, or employee is authorized
to make any modication, extension, or addition to this warranty.
Net Optics is always open to any comments or suggestions you may have about its products and/or
this manual.
Send correspondence to
Net Optics, Inc.
5303 Betsy Ross Drive
Santa Clara, CA 95054 USA
Telephone: +1 (408) 737-7777
Fax: +1 (408) 745-7719
Email: info@netoptics.com/Internet: www.netoptics.com
All Rights Reserved. Printed in the U.S.A. No part of this publication may be reproduced, transmit-
ted, transcribed, stored in a retrieval system, or translated into any language or computer language,
in any form, by any means, without prior written consent of Net Optics, Inc., with the following
exceptions: Any person is authorized to store documentation on a single computer for personal use
only and that the documentation contains Net Optics’ copyright notice.
14
www.netoptics.com
© 2010 by Net Optics, Inc. All Rights Reserved.
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