ExaLINK user guide

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ExaLINK

50

User Manual

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Head Ofce: Head Ofce: EXABLAZE PTY LTD EXABLAZE PTY LTD Level 5, 443 Level 5, 443

Little Collins Street Little Collins Street

FIGURES

Figure 1:

Figure 1:An example set-up for the ExaLINK to act as an electronicAn example set-up for the ExaLINK to act as an electronic

patch panel and to enable system monitoring.

patch panel and to enable system monitoring. 44

Figure 2:

Figure 2: Front panel of the ExaLINK. Front panel of the ExaLINK. 99

Figure 3:

Figure 3: Back panel of the ExaLINK. Back panel of the ExaLINK. 1010

Figure 4:

Figure 4: Command-line interface. Command-line interface. 1212

Figure 5:

Figure 5: Web interface login screen. Web interface login screen. 1313

Figure 6:

Figure 6: Main menu of the web interface. Main menu of the web interface. 1313

Figure 7:

Figure 7: Clip the rack-mounting nuts into the rack. Clip the rack-mounting nuts into the rack. 1616

Figure 8:

Figure 8: Sliding the ExaLINK into a rack. Sliding the ExaLINK into a rack. 1616

Figure 9:

Figure 9: Plugging SFP+ modules into the ExaLINK. Plugging SFP+ modules into the ExaLINK. 1616

Figure 10:

Figure 10: Updating the rmware through the web interface. Updating the rmware through the web interface. 1919

Figure 11:

Figure 11: Setting Port groups. Setting Port groups. 2020

Figure 12:

Figure 12: Setting destination ports. Setting destination ports. 2222

Figure 13:

Figure 13: Example Conguration. Example Conguration. 2222

Figure 14:

Figure 14: The Statistics screen in the web interface. The Statistics screen in the web interface. 3030

Figure 15:

Figure 15: Removing one of the Emerson power supply modules. Removing one of the Emerson power supply modules. 3131

Figure 16:

Figure 16: Removing one of the fan modules. Removing one of the fan modules. 3232

Figure 17:

Figure 17: Advanced window. Advanced window. 3535

Figure 18:

Figure 18: 4343

An eye scan of 10G ethernet received over 2m OM3 ber using

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Little Collins Street Little Collins Street Melbourne VIC 3000, Melbourne VIC 3000, Australia Australia +61 3 9111 1773 +61 3 9111 1773 [email protected] [email protected]

ABOUT THE EXALINK

Overview

The ExaLINK is a 50-port layer 1 circuit switch that can electronically create a

circuit between each of its outputs and any input port, forwarding data in around

5 nanoseconds – ve one-billionths of a second – about the same time it takes

light to travel through 1m (3ft) of optical bre.

Every port output (TX) can be driven from any single port input (RX).

This architecture enables replication, monitoring and remote, hands-free

network reconguration with a negligible latency overhead, making the ExaLINK

an extremely effective device for a range of mission-critical use cases.

An example network conguration incorporating the ExaLINK is shown in

An example network conguration incorporating the ExaLINK is shown in Figure 1Figure 1..

Figure 1

Figure 1: An example set-up for the ExaLINK to act as an electronic patch: An example set-up for the ExaLINK to act as an electronic patch

panel and to enable system monitoring

panel and to enable system monitoring..

Dual-purpose network device: replicate and recongure

Each incoming network connection can be forwarded to more than one port,

so it’s perfectly suited for packet replication and network monitoring, both with

virtually no latency.

But the ExaLINK’s unusual, patent-pending architecture lends itself to another use

as a new kind of top-of-rack device, an electronic patch panel that enables

remote, hands-free network reconguration.

These two aspects of the ExaLINK allow it to be deployed in almost any data

centre to improve network speed, re-congurability and risk controls.

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Head Ofce:

EXABLAZE PTY LTD Level 5, 443

Little Collins Street

World’s fastest high fan-out edge device

As a 1-to-n edge device, the ExaLINK delivers competitive advantage to brokers, market operators and trading rms, by performing nearly 100 times faster than the multicast-capable packet-switches they currently use to broadcast market data, publish volatilities and monitor system performance.

New kind of top-of-rack 1-to-1 connector

As a 1-to-1 top-of-rack device, the ExaLINK offers convenience, exibility and a reduction in Total Cost of Ownership for businesses both inside and outside the trading industry.

Instead of people having to physically go into a co-location environment or data centre to move cables around, ExaLINK enables connections to be repatched remotely, and instantly, via a exible management interface.

Accepts all SFP+ modules

The ExaLINK works with all brands of SFP+ module and is not tied to a particular brand.

Other features

• Dedicated 10/100Mbps Ethernet management port • Industry-standard command-line interface (CLI) • Linux- and AJAX-powered web GUI

• SNMP-compatible management, for integration with network management and monitoring infrastructure (in a future rmware release)

• Switch conguration, including per-port ltering

• Software updates via USB, TFTP, console or web inter face

• Access to management interfaces via serial console and Ethernet interfaces • Monitoring of available SFP+ parameters, including SFP+ model information

and dynamic parameters such as received power, transmitted power and temperature

• Hardware fan synchronisation to mitigate beat frequency noise For more information about the ExaLINK and Exablaze,

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Head Ofce:

Little Collins Street Melbourne VIC 3000, Australia

+61 3 9111 1773 [email protected]

About this manual

This manual describes how to set up and use the ExaLINK hardware and software. The manual is for users and system administrators responsible for installing and operating the ExaLINK.

Conventions

This symbol indicates something important. Take care!

Describes the web interface for managing the ExaLINK

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SAFETY AND INSTALLATION WARNINGS

Ambient temperature

Make sure the ambient temperature does not exceed the maximum ambient temperature allowed for the ExaLINK

(104ºF, 40ºC). If installed in a closed or multi-unit rack assembly, the ambient temperature of the rack during operation will be greater than room ambient.

Air ow

Install the ExaLINK in the rack in a way that provides sufcient air ow for safe operation.

Mechanical loading

Mount the ExaLINK in the rack with a mechanical load that is evenly distributed and not excessive.

Circuit overloading

Ensure that no overloading of the circuits occurs which might affect overcurrent protection and supply wiring. The ratings are provided on the unit.

Earthing

Ensure that the rack-mounted equipment is earthed reliably. Consider using supply connections other than direct

connections to the branch circuit (e.g. use of power strips).

Check that your ExaLINK is rated to be used with the mains power in your country.

Total ExaLINK ratings: • 100-240V AC • 10.58-4.4A • 50-60Hz

Use only Emerson™ DS460S-3 power supply modules.

If your ExaLINK is tted with a DC input power supply, ensure the input voltage is within the range 40-72V.

For DC input, use only Emerson™ DS460SDC power supply modules. Disconnect the two power-supply cables before servicing.

Ensure the ExaLINK uses mains power cables approved in the country of operation.

CAUTION: The ExaLINK has a battery-powered real-time clock circuit. There is a danger of explosion if the battery is replaced incorrectly.

Replace only with CR2032 type coin cells.

Discard used batteries according to the manufacturer’s instructions. Environment Power Before servicing Power cables Clock battery

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CAUTION: Each SFP+ module used in the ExaLINK is a CLASS 1 LASER PRODUCT. Invisible laser radiation may be emitted from the aperture of an SFP+ module when the ber cables are

disconnected.

Do not stare into the open aperture of an SFP+ module and avoid exposure to laser radiation when a ber cable is disconnected from an SFP+ module.

Do not open the case of the ExaLINK.

The warranty of the ExaLINKwill be void if the case is opened. Tamper-proof seals on the case of the ExaLINK will be activated if the case is opened.

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this

equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

Laser safety FCC compliance Warranty void if opened

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The ExaLINK system

Package contents

Your ExaLINK package should contain the following parts: • 1 x ExaLINK

• 4 x M6 rack-mounting nuts • 4 x M6 rack-mounting bolts • 4 x rack-mounting washers • 2 x IEC power leads

• 1 x Quickstart Guide (1 double sided A4 page)

If any of these are missing, please contact us at exablaze.com/support.

Understanding the ExaLINK

The front panel of the ExaLINK has 50 ports (shown in Figure 2 as item 1). Each port accepts SFP and SFP+ ber optic transceiver modules. These modules can

operate up to 10Gbps.

To achieve minimal latency, the ExaLINK has no understanding of packet

boundaries – it creates a physical connection from one port to another port. For this reason packet statistics such as counts are not available.

The easiest way to think of the connectivity options supported is to consider that every port output (TX) can be driven from any single port input (RX). This allows arbitrary bidirectional connections between any set of two ports and also the ability to replicate data (for market data distribution or monitoring) from one port’s RX to multiple ports’ TX.

Front panel

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1. Ports 1 to 50 for SFP / SFP+ modules.

2. Fan-status LED indicator (green=OK, red=fan failure)

3. System-status LED indicator (green=OK, red= ExaLINK system failure) 4. Serial port

5. External timing reference port (currently not used)

6. Power-supply LED indicator (green=OK, red=power-supply failure) 7. LED (currently not used)

8. Ethernet port 9. USB port

Back panel

Figure 3: Back panel of the ExaLINK

Figure 3 shows the back panel of the ExaLINK. Items 1-10 are as follows: 1. Power supply #1

2. Power cable socket for power supply #1 3. Quick-release lever for power supply #1 4. Fan module #1

5. Release screws for fan module #1 6. Release screws for fan module #2 7. Fan module #2

8. Power supply #2

9. Power cable socket for power supply #2 10. Quick-release lever for power supply #2

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Connecting the ExaLINK

For management, the ExaLINK can be connected through the Ethernet port on the front panel (shown in Figure 2, item 8). The ExaLINK can be managed via a command-line interface or a web-based interface (http). In addition, it can be connected directly to a PC using a serial connection for command line-only access. The four ways to access the ExaLINK are:

• Serial via the serial port (see Figure 2, item 4) • Telnet via Ethernet

• SSH via Ethernet

• Web interface via Ethernet

Serial connection

Parameters for the serial connection are: baud rate = 9600, 8N1, no ow control.

ExaLINK as a DHCP client

By default, the ExaLINK is congured as a DHCP client which falls back to the

static IP address (defaulted to 192.168.0.100) if the DHCP request times out after 60 seconds.

The ExaLINK will send its serial number (displayed on the side of the ExaLINK) as the name in the DHCP request. For setups where this name is automatically passed to the DNS server, the ExaLINK can be resolved by this serial number. If you wish to specify a static IP address for the ExaLINK, refer to page 17.

Accessing the ExaLINK

The ExaLINK is accessed using its IP address, or via the serial port on the front panel. You will be asked to enter the login user name and password. The user name is “admin” and cannot be changed, however the password can be changed. The default password is “admin”.

In order to make changes to the conguration, such as redirecting one port to a set of other ports, the ExaLINK must be put into a special mode called the

“privileged mode”. This is described on page 14 under Privileged mode. To change to privileged mode, you will need to enter the “privileged password” (which is blank by default).

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Command-line interface

Connect via serial or via Ethernet using SSH or telnet. You will be prompted to enter the username (admin) and password. SSH keys are supported for public key authentication - refer to page 26 for more details. A full list of commands supported on the CLI is shown in Appendix A: Commands.

Serial

SSH

Telnet

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Web interface

1. Enter the IP address of the ExaLINK in the browser URL eld to display the login screen (Figure 5). The IP address is discussed on page 11 under

ExaLINK as a DHCP client.

Figure 5: Web interface login screen

2. Enter the default username (“admin”) and default password (“admin”). You will be taken to the web interface. The main menu is at the top of the

screen, next to the ExaLINK logo (see Figure 6).

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The main menu of the web interface

Ports – Main screen for conguring the operation of the device.

Settings – Allows viewing and setting other device parameters, eg IP ad dress, date/time and rmware updated.

Cong Manager – Allows the device’s current operational state to be saved so it can be restored after a reboot or power cycle. Refer to Saving startup-cong on page 25.

Hardware Status – Shows information about the current hardware status of the device, eg temperature & fan speed. Also shows statistics and graphs of historical data.

Advanced – A web based command line interface. There is more information about this on page 31 under Appendix A: Commands.

Web browsers supported

The following web browsers will allow you to experience the full functionality of the web interface:

• Google Chrome • Safari

• Mozilla Firefox • Opera

• Internet Explorer 9 and above

Internet Explorer 8 and below can be used, with reduced functionality.

Operating systems supported

The ExaLINK does not require any software to be used on an external computer. Therefore, the ExaLINK is compatible with any device that can connect via SSH, telnet or http.

Privileged mode

The ExaLINK has two modes of operation: unprivileged for viewing, and privileged when you want to make changes to the system.

The privileged mode requires the “privileged password”. The default for this password is blank (just press Enter).

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There are three ways for you to change to privileged mode:

• In the web interface, click on the text on the right hand side of the main menu that says: Unprivileged (see Figure 6). This will open a eld allowing you to enter the privileged password.

• In the web interface, go to the Advanced tab and run the “enable” command (see Appendix A: Commands).

• On the command line, run the “enable” command (see Appendix A: Commands).

SETTING UP THE EXALINK

1. Installing the hardware - Page 16

2. Conguring the IP address (optional) - Page 17

3. Changing default passwords (optional) - Page 18

4. Connecting the ExaLINK to the network - Page 18

5. Updating the rmware - Page 18

6. Port connectivity options - Page 21

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1. Installing the hardware To install the ExaLINK in a rack:

1. Before installation, review the section Safety and installation warnings on page 7.

2. Ensure that the installed fans and power supplies have airow directions matching the rest of the rack, and that there are no obstructions over the rear inlets/outlets.

3. Plug power cables into the ExaLINK and place the mains end in a convenient location.

4. Clip the supplied rack-mounting nuts into the rack (Figure 7).

Figure 7: Clip the rack-mounting nuts into the rack.

5. Slide the ExaLINK into the rack (Figure 8) and hold it level while you screw in the supplied bolts. You may need two people due to the weight of the ExaLINK.

Alternatively, remove the power supplies while installing to reduce weight at the rear of the device.

Figure 8: Sliding the ExaLINK into a rack.

6. Plug your SFP+ modules into the ports of the ExaLINK (Figure 9).

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2. Conguring the IP address (optional)

By default, the ExaLINK is congured as a DHCP client which falls back to the static IP address (defaulted to 192.168.0.100) if the DHCP request times out after 60 seconds.

If this behavior is not desired, the procedure for setting the static IP address is as follows:

1. Attach a serial console cable to the ExaLINK and to your PC. You should see the serial-mode command line.

2. Enter the user name (“admin”) and default password (“admin”).

3. Enter “enable”, to enable “privileged mode”. The default password is blank (just press Enter). There is more information about the privileged password in the next section: Changing the default passwords (optional).

4. To assign an IP address of your choice, enter the command “set

management address static <ip address> [netmask] [gateway] ”. Example: “set management address static 10.10.10.11”.

You have now congured the ExaLINK IP address and can connect the device to the network, bypassing DHCP IP address allocation.

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3. Changing the default passwords (optional) There are two passwords that you may wish to change:

a) Login password (default is “admin”). b) Privileged password (default is blank – just press Enter).

To change these passwords:

4. Connecting the ExaLINK to the Network Insert a network cable into the Ethernet port on the front panel of the ExaLINK (see Figure 2, item 8).

1. On the command line, enter “enable”.

2. When prompted for the privileged password, press Enter (the default). 3. To change the login password, enter the command “set password” and follow the prompts.

4. To change the privileged password, enter the command “set enablepass” and follow the prompts.

5. To make sure your new passwords are saved in the startup-cong le, enter the command “copy running-cong startup-cong”. For more

information about this, see page 25: Saving startup-cong.

NOTE: The user name cannot be changed and is always “admin”.

5. Updating the rmware

The latest version of the rmware will have the latest bug xes and performance enhancements. To update the rmware:

1. If a newer version of the rmware is available, download the latest image from exablaze.com/support to either a server, USB ash drive or local computer. Be sure to download the correct le for your hardware revision. This can be found via “show version” on the CLI or Firmware Information on the webpage.

2. Follow the steps below to install the rmware using either the command-line or web interface.

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Either:

Command-line interface 1. Enter “enable”.

2. If updating via USB ash drive, take the USB containing the update and plug it into the USB port of the ExaLINK (see Figure 2, item 9). Enter “update usb <lename>”, for example “update usb ExaLINK_r5000_0.4.0.tar”. If updating via TFTP, enter “update tftp <server> <lename>”,

where <server> is the address of the TFTP server, and <lename> is the name of the le.

3. The ExaLINK will restart during the update process. The whole process should only take about 1 minute.

Or .

Web interface

1. Click: Unprivileged (see Figure 6). This will open a eld

allowing you to enter the privileged password. The text should change to: Privileged.

2. Go to the Update Firmware tab, click Choose File (see Figure 10) and navigate to the tar le you downloaded.

3. Click Upload. The ExaLINK will restart during the update

Figure 10: Updating the rmware through the web interface.

6. Port Naming and groups

Ports can be given an alias and/or a description to keep track of where each port is connected to. Once an alias is dened for a port it can be referred to by its alias rather than port number, if desired. Groups of ports can also be dened, and

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Refer to Appendix A for details on the “set port alias”, “set port description” and “set port group” commands.

Web Interface

To add/edit an alias or description for a port: 1. Ensure you are in Privileged mode.

2. On the Ports page, select the port you wish to modify either by directly clicking the port on the front panel image, or by selecting it from the drop down list on the left hand side of the page.

3. Click the Port settings button.

4. A window will appear allowing you to enter an alias and

description for that port. Note that port aliases may only contain alphanumeric characters and underscores, and may not start with a digit. Port aliases are also limited to 12 characters.

5. Click Apply changes.

Hovering over the image of the front panel ports on the Ports page will show the port number and any alias that has been dened for that port.

To add a group of ports:

1. Ensure you are in Privileged mode.

2. Click the Manage port groups button on the Ports page, and a window will appear.

3. Enter a name for this group of ports in the text box on the right hand side of the window, and click the Create group button.

4. Select the ports you wish to be part of this group by clicking the ports on the image of the front panel. You can deselect a port by clicking it again.

5. When you have nished selecting ports for this group, click the Save changes button.

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7. Port connectivity options

The easiest way to think of the connectivity options supported is to consider that every port output (TX) can be driven from any single port input (RX).

This allows arbitrary unidirectional and bidirectional connections between any set of two ports and enables you to replicate data (eg: for market data

distribution or monitoring) from one port’s RX to multiple ports’ TX. A few examples are listed below to clarify further:

1. You must enter privileged mode rst (via the “enable” command).

2. Enter “set port redirect <input port> <output port range> ” to assign connections between ports.

Example: “set port redirect 1 12-30,49”. This replicates data

coming into port 1 and outputs that replicated data on ports 12-30 and 49. Example: “set port redirect 5 33; set port redirect 33 5” . These two commands create a bi-directional connection between port 5 and port 33.

Example: “set port redirect 1 *”. This replicates data on port 1 out to ALL 50 ports.

Example: “set port redirect - 1”. This clears a redirection to port 1. Web interface

1. You must enter privileged mode rst.

2. On the Ports screen, click the port you wish to use as an input source of data.

3. Click the Select destination ports button.

4. A window will appear showing the front panel of the ExaLINK. Click the ports you wish the input data to be sent to. Alternatively, select the port from Select port dropdown box, and click the Add button.

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Figure 12: Setting destination ports

Figure 12 shows an example where port 1 is being redirected to ports 3-8. The green triangle in the top left of port 1 shows the input for this port is being used, and there is an SFP present. The green triangles in the bottom right of ports 3,4,6,7 and 8 indicate the outputs for these ports are dened, and that there is an SFP present. The red red triangle in the bottom of port 5 shows this port’s output is dened, however there is no SFP present. Note this is still a valid set of redirections, and the SFP can be inserted any time in the future.

Figure 13: Example Conguration

Figure 13 shows an example setup containing a number of port redirections. • Port 1 is redirected to ports 3-8, and as described earlier ports 1, 3, 4, 6, 7, and

8 have SFP’s, whilst port 5 doesn’t have an SFP inserted.

• Port 3 is redirected to port 1 (ie there is now a bidirectional connection between ports 1 & 3).

• Port 35 is redirected to 36, 37 and 38, all of which have SFP’s. Port 35 is currently selected, so information on it is shown in centre of the window.

Note also the outputs ports for the currently selected input port are highlighted on the front panel display.

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8. Port speed

To optimize the signal quality of connections owing through the ExaLINK, the speed of each port should be set appropriately, ie either 10G ethernet or 1G ethernet. The default is 10G ethernet.

Command-line interface 1. Enter “enable”

2. Enter “set port speed <port range> <port speed>”, where <port speed> is either “10000” or “1000”. Example: “set port speed 40-43 1000”.

Web interface

2. On the Ports screen, select the port you wish to change the speed for. Click the Port settings button.

3. A window will appear with a number of settings elds. Under the Port speed drop down box, select either 10G Ethernet or 1G Ethernet.

4. Click Apply changes. 9. Port type

To optimize the signal quality of connections owing through the ExaLINK, ports should be congured either as “normal” for optical ber and active copper/ twinax connections, or “passive” for passive copper/twinax connections. The default is “normal”.

Command-line interface 1. Enter “enable”

2. Enter “set port type <port range> <port type>”, where <port type> is either “normal” or “passive”. Example: “set port type 3-6 passive”.

Web interface

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Little Collins Street Melbourne VIC 3000, Australia +61 3 9111 1773 [email protected] 10. Port status Command-line interface

1. The status of any port can be shown on the command line using the “show port” command. Example: “show port 1-10”:

EXALNK1-C-001-00422# show port 1-10

Port Speed Type Status Qual. Alias Description ---- --- --- --- --- --- ---1 10000 normal connected 88 2 10000 normal 3 10000 passive connected 83 4 10000 passive connected 85 5 10000 passive 6 10000 passive connected 90 7 10000 normal connected 92 8 10000 normal connected 98 9 10000 normal 10 10000 normal

As can be seen above, there are connections present on port 1,3,4,6-8. Ports 3-6 have been dened to be passive copper, and 1,7-8 are normal (either ber or active copper). The signal quality for the connected ports is also shown. Note that the signal quality reading is not available when a port is running at 1Gb.

Web interface

1. On the Ports screen, click the port you wish to show the status for. The screen will update and show the port status information, as shown on

Figure 13. A graphical representation of the received signal quality can be shown by running an “eye scan” of a port. Refer to Appendix C for more information.

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OTHER COMMON TASKS

The following are instructions for doing a number of common tasks on the ExaLINK. For a listing of all commands available on the command-line interface, see

Appendix A: Commands.

Changing the login password

The default login password is “admin”. The user name cannot be changed and is always “admin”.

2. Enter “set password” and follow the prompts.

3. Enter “copy running-cong startup-cong”. This will save the new password in the startup-cong le (for more information about this is, see Saving startup-cong).

Web interface

To change the password using the web interface, click the “Logged in as: admin” text on the right hand side of the menu bar. A drop down menu will appear, allowing you to select Change Password.

Ensure you saved the running-cong to startup-cong to save the new password (for more information about this is, see Saving startup-cong).

Changing the privileged password

2. Enter “set enablepass” and follow the prompts.

3. Enter “copy running-cong startup-cong”. This will save the new password in the startup-cong le (for more information about this is, see Saving startup-cong).

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Using SSH key based authentication

The ExaLINK supports public key authentication for SSH connections. To use this authentication method, you will need to add your public key to the authorized_ keys le on the ExaLINK.

You will need access to a remote tftp server to use this method. 1. On the command line, enter “enable”.

2. Transfer the current authorized_keys on the ExaLINK to the remote server by entering: “tftp put authorized_keys authorized_keys <server address>”.

3. Edit the authorized_keys le on the remote server and add your public key, which is typically found in ~/.ssh/id_rsa.pub

4. Copy the updated authorized_keys back to the ExaLINK by entering: “tftp get authorized_keys authorized_keys <server address> ”. 5. You should now be able to ssh in to the ExaLINK as the admin user without having to enter a password.

Web interface

2. On the Cong manager screen, click Manage les.

3. On the File manager screen, you will see the authorized_keys le.

Download this le by clicking the download icon on the right hand side of the screen.

4. Edit the downloaded le and add your public key, which is typically found in ~/.ssh/id_rsa.pub

5. On the File manager screen, click the Upload le button. A window will appear allowing you to select the updated le. Once selected, Click the Upload le button.

6. You should now be able to SSH in to the ExaLINK as the admin user without having to enter a password.

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Checking the rmware version

You can check that you have the most recent version of the rmware. Either: Command-line interface

1. Enter “show version”.

2. Visit exablaze.com/support to check whether a newer version of the rmware is available for your hardware revision.

Or:

Web interface

1. Go to the Settings page and click Firmware information.

2. Visit exablaze.com/support to check whether a newer version of the rmware is available for your hardware revision.

Finding the ExaLINK IP address

You can look up the IP address of your ExaLINK. Command-line interface

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Saving startup-cong

The “startup-cong” le denes the conguration of the ExaLINK at initialization (startup). It contains a set of commands that are automatically run each time the ExaLINK starts up. If the ExaLINK loses power, it will be restored to this state. The “running-cong” le denes the current conguration of the ExaLINK. A desired conguration can be saved to the startup-cong le using the copy command (described under Appendix A: Commands).

Note: Any changes made to the conguration of the device will not persist across power cycles unless the running-cong is copied to the

startup-cong.

Command-line interface

You can display the contents of the running-cong le and startup-cong le using the “show running-cong” and “show startup-cong”

commands, allowing editing.

• To show the conguration to be saved, enter “show running-cong”. • To show the conguration currently saved, enter “show startup-cong”. • To record the present conguration and run it at startup, enter “copy running-cong startup-cong”. Be sure to preview it using “show” before you do this.

Web interface

On the Cong Manager page, click the Save to startup cong button.

Updating the rmware

This is described on page 17: Updating the rmware.

Viewing/setting system time

You can view and set ExaLink system time using either the command line or the web interface. The time can either be set manually or a daemon can be enabled to keep the system time in sync with a NTP server.

Enter “show time” to view the time. Refer to Appendix A for CLI commands for setting the time.

Or:

Web interface

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Viewing statistics

You can view and set the parameters for a number of statistics about the ExaLINK. This can be done with either the command line or web interface.

Set the time interval (in seconds) over which the statistics will be collected. At the command prompt, enter “enable”, then “set stat <seconds>”. Use the “stat” command to show statistics for:

• fans

• temperature • power supplies

For details on the stat command, refer to the listing under Appendix A: Commands. You will need to specify:

• The type of device (either “fans”, “power”, “power detail”, “temperature” or blank for all devices).

• The level of detail (blank for summary information, or “detail” for detailed infor -mation).

• The device number (device numbering starts with 1; * indicates all devices). • The number of statistics readings.

Enter “stat <blank for all device types or one of “fans” or “tem-perature” or “power”> <blank for summary or “detail”> <blank or device number or “*” for all> <blank for all readings or the number of readings>”.

To clear saved statistics, enter “enable” then “clearstat”.

The commands “stat fans”, “stat power” and “stat temperature” all work in a similar way, as shown in the examples below.

Examples

• “stat 7” will show the last 7 statistics readings for all devices.

• “stat fans 2 7” will show the last 7 statistics readings for fan 2 (the four fans are numbered 1, 2, 3 and 4).

• “stat fans * 7” will show the last 7 readings for all fans.

• “stat power detail 1” will show detailed power supply statistics for power supply 1 (the two power supplies are numbered 1 and 2).

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Web interface

On the Hardware status (Figure 14) page, Graphs gives you a graphical overview of the ExaLINK components. If your browser is Internet Explorer, the graph will only be displayed in Internet Explorer 9 and above.

You can also go to the Advanced page (see Appendix A: Commands) and use the command line commands explained above. The statistics will also be

displayed in graphical format.

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Swapping a power supply module

The ExaLINK has two hot-swappable power supply modules (Emerson DS460S-3-002 or DS460S-3-003 depending on your airow direction).

One of the power supply modules can be swapped while the other is operating, without cutting power to the ExaLINK.

Emerson also produce a DC input variant of this power supply that is fully compatible – DS460SDC.

Removing a power supply module

1. At the mains power, switch off the power to the module you wish to remove (the other module can remain powered).

2. Unplug the power cable from the power supply module you wish to remove. 3. Push the release lever, shown in Figure 15(a), while pulling on the handle of the power supply module. Fully remove the module.

a) c)

b)

Figure 15: Removing one of the Emerson power supply modules.

Installing a power supply module

1. Ensure the power cable is unplugged from the power supply module being installed.

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Swapping a fan module

The ExaLINK has two hot-swappable fan modules. One of the fan modules can be swapped while the other is operating.

Removing a fan module

1. As shown in Figure 16(a), unscrew the two screws of the fan module until they disengage. The ExaLINK can be powered and operating while doing this. 2. Pull out the fan module using the screws as handles, as in Figure 16(b).

a)

b)

Figure 16: Removing one of the fan modules.

Installing a fan module

1. Simply push the power supply module into position. The ExaLINK can be powered and operating while doing this.

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Conguring SNMP

The ExaLINK supports the Simple Network Management Protocol (SNMP) up to version 2c. Two SNMP communities can be congured - a read-only and read-write community. The read-only community can only be used to query the conguration of the ExaLINK, whereas the read-write community can be used to both query and set the conguration of the ExaLINK.

Some of the settings that can be queried and congured include port redirects, port speed and port status. A full list of the settings that can be queried and set using SNMP is available in the ExaLINK Management Information Base (MIB). The ExaLINK MIB can be obtained from the web interface by navigating to Settings page, clicking on SNMP and then clicking on “Download ExaLINK 50 MIB”. SNMP is disabled by default, but can be enabled and congured from the command-line and web interface.

Note: SNMP version 2c sends community name strings in plain text format. When enabling SNMP on the ExaLINK, the community name should not be used for security purposes.

2. Enter “set snmp cong <port number> <read-only community> <read-write community>”. The SNMP port number is most commonly set to 161 and the read-write community is optional.

3. To show the conguration that was set, enter “show snmp cong”. 4. You should now be able to query and set (in the case of the read-write community) the conguration of the ExaLINK via SNMP.

OR:

Web interface

1. You must enter privileged mode rst. 2. On the Settings screen, click SNMP.

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TROUBLESHOOTING

The “show log” command indicates many errors are occurring (on startup or otherwise).

Error: “Could not communicate with hardware. System timeout error.”

Run the “clear startup-cong” command. This returns the ExaLINK to the factory default conguration.

1. Run the “show log” command to see the latest errors.

2. Go to exablaze.com/support and send the support team a copy of the log, as well as the command that triggered the error.

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APPENDIX A: COMMANDS

Commands can be sent to the ExaLINK using either the web interface or the command line interface. Both are described below.

Web interface

1. On the ExaLINK main menu, click Advanced. Figure 17 shows the window that will appear.

2. A list of available commands based on the current privilege level can be displayed by clicking help. Type in the desired command into the Command text box and click Execute. The command will be executed and the output will be displayed in the top of the page.

The commands available through Advanced operate in the same manner as those available through the command-line interface (see next section).

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The table below lists the commands that can be used in the command-line interface. We use the following conventions:

• Angled brackets (e.g.<line>) indicates a parameter that must be entered.

• Square brackets (e.g. [prompt]) indicates an optional parameter.

Many commands enable you to specify parameters without waiting to be prompted in a subsequent step.

Multiple commands can be given on a single command line separated by a semi-colon, for example:

enable; set port redirect 26 27; set port redirect 27 26; disable clear clear stat clear startup-cong copy running-cong startup-cong enable disable copy startup-cong running-cong

Clears the terminal window.

Clears all statistics.

Clears the start clear startup-cong up-cong (see the “copy” command below). The ExaLINK resets to the factory default conguration..

Copies the contents of the running-cong le to the startup-cong le.

You can view the contents of these les using “show running-cong” or “show startup-cong”.

Activates privileged mode. Privileged mode must be enabled to be able to make changes to software conguration of the ExaLINK.

Example:

“enable” then follow prompts

Exits privileged mode. Privileged mode must be enabled to make changes to software conguration of the ExaLINK.

Caution: this will immediately change the conguration of the ExaLINK.

Copies the contents of the startup-cong le to the running-cong le.

You can view the contents of these les using “show running-cong” or “show startup-cong”.

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exit

les list

reset

Closes an active console port or telnet session.

Lists the user les that are saved on the ExaLINK.

Restarts the ExaLINK.

Command Description

les delete <les>

ping <IP address>

set management address dhcp

set management address static <ip address> [netmask] [gateway] set enablepass

set hostname help

set password

set management address dhcp renew

Deletes user les saved on the ExaLINK. Specify a list of les to be deleted, separated by spaces.

Example:

“les delete in.png binary.bin”

Sends ICMP echo request packets to another node on the network. Specify the web address to ping.

Example:

“ping 10.10.10.2”

Changes the management port IP address of the ExaLINK to a DHCP-allocated IP address

Changes the management port IP address to a static IP address. The IP address must be specied. To specify the optional gateway address a netmask must also be specied.

Examples:

“set management address static 192.168.0.100” “set management address static 192.168.0.100 255.255.255.240 192.168.0.5”

Sets the privileged password. Example:

“set enablepass” then follow prompts. Set the hostname

Example:

“set hostname MYEXALINK”

Lists the top-level commands available in the current mode.

Sets the login password. Example:

“set password” then follow prompts.

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set port disable <ports>

set port alias <port> <alias>

set port enable <ports>

set port group

set stat <seconds>

set telnet disable

set port speed <port range> <port speed> set telnet enable set port redirect <input port> <output port range>

Disables a port or set of ports. Specify the port(s), num-bered 1 to 50.

Example:

“set port disable 10-20,24”, to disable ports 10 to 20 and port 24.

Sets a description for a port. For example:

“set port description port 2 ‘Connection to backup server eth0’”

Sets an alias for a port, which can then (optionally) be used to reference the port instead of its number. Max 12 characters.

For example:

“set port alias 25 md_input” “show port md_input”

Enables a port or set of ports. Examples:

“set port enable 22,10-20,3-5,1”, to enable ports 1, 3 to 5, 10 to 20 and 22.

“set port enable *”, to enable all ports.

Assigns one or more ports to a group. This group name can then be used for other commands. For example:

“set port group md_listeners 5,6,7,8” “set port redirect 1 md_listeners”

Sets the refresh interval for system statistics, in seconds. Example:

“set stat 20”

Disables remote telnet communications to the ExaLINK.

Sets the speed of a range of ports, where speed is either 1000 or 10000.

Example:

Enables remote telnet communications to the ExaLINK.

Assigns a connection between ports. Examples:

“set port redirect 2 7,12-49”, to replicate data coming into port 2 and output that replicated data on ports 7 and 12-49.

“set port redirect 18 31; set port redirect 31 18”, to create a bi-directional connection between port 18 and port 31.

“set port redirect - 35” to clear the redirection to port 35.

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Command Description

show hardware snapshot

show hostname

set time ntp disable

show management address

show log

show mac

show net stat

Shows a snapshot of the operating state of the ExaLINK.

Displays the current hostname. Disables the NTP daemon

Displays the current IP address of the ExaLINK. Displays the system error log.

Shows the MAC address of the ExaLINK. Shows network statistics.

set time <time>

set time ntp <server>

Sets the system time. For example: “set time ‘2013-09-03 09:21:00’”

Enables the NTP daemon to keep system time in sync with a NTP server. For example:

“set time ntp pool.ntp.org”

show port <ports>

show port details <ports>

show port group

Shows ports alias, description, and whether ports are enabled or disabled. Specify the ports.

For example: “show port 5-7”

Shows detailed information about the ports. Specify the ports.

For example: “show port details 5-7” Shows details about one or more port groups. For example:

“show port group md_listeners” “show port group *”

show running-cong

show serial

Shows the system conguration that can be edited at present.

Shows the unique serial number for the ExaLINK.

show startup-cong Shows the startup conguration le stored for the ExaLINK.

show time

show version

Shows the current system time. Shows version information.

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Little Collins Street Melbourne VIC 3000, Australia +61 3 9111 1773 [email protected] stat <number of readings>

stat power <power supply number or *> <number of readings> stat fans <fan

number or *> <number of readings>

Shows statistics over time for fans, power supplies and temperature of the ExaLINK. Specify the number of readings.

Example:

“stat 15” displays the last 15 readings for all components (fans, power supplies etc).

Shows statistics for power supplies over time. Either specify the power supply number (1 or 2), or * for both power supplies. Specify the number of readings.

Examples:

“stat power 1 10” displays the last ten readings for power supply 1.

“stat power * 10” displays the last ten readings for both power supplies.

Shows statistics for fans over time. Either specify the fan number (numbered 1, 2, 3, 4), or * for all four fans. Specify the number of readings.

Example:

“stat fans 1 10” displays the last ten readings for fan 1.

Command Description

stat power detail <power supply number or *>

stat temperature <sensor number or *> <number of readings>

tftp put <remote le name>

<TFTP server IP address> Copies a le onto a

remote TFTP server. tftp get <remote le name>

Shows power supply details for power supplies. Either specify the power supply number (numbered 1, 2), or * for both power supplies.

Example:

“stat power detail 1” displays power supply details for power supply 1.

Shows statistics for the temperature sensors over time. Either specify the sensor number (numbered 1 to 6), or * for all. Example:

“stat temperature 1 10” displays statistics for temperature sensor 1 over the last 10 readings.

Example:

“tftp put /public/download.zip local_copy.zip 10.10.10.176”, copies a le called local_copy.zip

onto a TFTP server with IP address 10.10.10.176 and saves it there as /public/download.zip.

Copies a le from a remote TFTP server. Example:

“tftp get /public/download.zip local_copy.zip 10.10.10.176”, copies a le called

/public/download.zip from a TFTP server with IP address 10.10.10.176 and saves it locally as local_copy.zip.

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update <type> [tftp server IP] <lename>

Updates ExaLINK rmware from a le on a USB ash drive, or from a le located on a TFTP server. The update le can be downloaded from exablaze.com/support. Ensure you are loading on the correct le for your hardware revision, eg r4450 or r5000.

Examples:

“update usb ExaLINK_r5000_0.4.0.tar” attempts to update from a USB ash drive.

“update tftp 10.10.10.9 ExaLINK_r5000_0.4.0.tar

“ attempts to update from a le on the TFTP server 10.10.10.9.

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Little Collins Street Melbourne VIC 3000, Australia +61 3 9111 1773 [email protected]

APPENDIX B: SPECIFICATIONS

Physical Connectivity Operating conditions 19.0x14.2x1.8” (482x360x45mm) 100W 50 x 10GbE SFP+ modules (MSA compliant) 1RU 32° to 104°F (0° to 40°C) 100 - 240VAC 40-72V DC (if DC power supply module used)

1 x RS232 9600N8 1 serial 50 - 60Hz (for AC input) 1 x PPS timing port 1 x 10/100M Ethernet Dimensions Power consumption (Typical) Switch Ports Management Rack Mount Temperature Voltage Frequency Timing Type Value Specication

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APPENDIX C: RECEIVED EYE SCAN

The ExaLINK contains sophisticated electronics for optimizing the received signal quality of connections owing through it, allowing for robust network connections with low bit-error rates. To assist in debugging networking issues, the ExaLINK is able to display the “eye diagram” for the received signal on any port. Tektronics (www.tek.com) have a good application note explaining what an eye diagram is, which can be found at www.tek.com/dl/65W_26042_0_Letter.pdf

Web interface

2. On the Ports screen, click the port you wish to run the eye scan on. 3. Click the Eye scan button, and a window will appear. If you have recently run an eye scan on this port, the old eye scan will be displayed. To run a new eye scan, click the Run eye scan button. This will take approximately 10 seconds to run.

ExaLINK user guide

ExaLINK

ExaLINK

50

50

User Manual

CONTENTS

CONTENTS

CONTENTS

CONTENTS

FIGURES

FIGURES

ABOUT THE EXALINK

ABOUT THE EXALINK

Overview

Overview

About this manual

SAFETY AND INSTALLATION WARNINGS

The ExaLINK system

Package contents

Understanding the ExaLINK

Connecting the ExaLINK

Accessing the ExaLINK

SETTING UP THE EXALINK

OTHER COMMON TASKS

Changing the login password

Changing the privileged password

Using SSH key based authentication

Checking the rmware version

Finding the ExaLINK IP address

Saving startup-cong

Command-line interface

Updating the rmware

Viewing/setting system time

Viewing statistics

Swapping a power supply module

Swapping a fan module

Conguring SNMP

TROUBLESHOOTING

APPENDIX A: COMMANDS

APPENDIX B: SPECIFICATIONS

APPENDIX C: RECEIVED EYE SCAN