Linksys SRW208 Router Manual PDF (Setup & Configuration Guide)

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Chapter 5

Advanced Configuration

55

8-Port 10/100 Ethernet Switch with Webview

Cable Length

This is the approximate length of the cable.

The Cable Length test can be performed only when the

port is up and operating at 1Gbps.

Admin > Save Configuration

Via TFTP

After you download a new image file, the device should

be rebooted. If you are downloading a new boot image,

please follow these steps:

Download the new boot code.

1.

WARNING:

While inputting the boot code,

refrain from reseting the device.

Download the new software image.

2.

Reset the device now.

3.

Upgrade

Select this option to upgrade the switch from a

file located on a TFTP server.

TFTP Server

•

The TFTP Server IP Address that contains

the source file to upgrade from.

Source File

•

Specifies the name of the upgrade file on

the TFTP server.

Backup

To back up the switch configuration via TFTP,

enter the TFTP server address.

TFTP Server

•

Specifies the TFTP Server IP Address to

which the configuration file will be saved.

Destination

File

•

Specifies

the

name

of

the

configuration file. The default is

StartupCfg.cfg

.

Via HTTP

This

HTTP Firmware Upgrade

screen is used for saving

configuration information using your web browser.

Upgrade

Select this option to upgrade the switch from a

file on the local hard drive.

Source File

•

Type in the name and path of the file or

click

Browse

to locate the upgrade file.

Backup

Proceed

The

Proceed

button is used to backup the

configuration to the local hard drive.

Admin > Firmware Upgrade

Admin > FIrmware Upgrade

The

Firmware Upgrade

screen contains the following

fields:

via TFTP

Defines the upgrade through a TFTP Server.

via HTTP

Allows you to upgrade the firmware using your

Web browser.

Upgrade

Defines the screen functionality as a Firmware

upgrade.

Backup

Defines the screen functionality as a Firmware

backup.

TFTP Server IP Address

Specifies the TFTP Server IP

Address from which files are downloaded.

Source File Name

Specifies the file to be downloaded.

Destination File name

Specifies the destination file

type to which to the file is downloaded. The possible field

values are:

Software Image

Downloads the image file.

Boot Code

Downloads the boot file.

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Chapter 5

Advanced Configuration

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8-Port 10/100 Ethernet Switch with Webview

NOTE:

When downloading a configuration file,

make sure that it is a valid configuration file. If

you have edited the file, ensure that only valid

entries have been configured.

Admin > Reboot

The

Reboot

screen

resets

the

device.

The

device

configuration is automatically saved before the device is

rebooted.

Admin > Factory Defaults

The

Factory Reset

screen allows network managers to

reset the device to the factory defaults shipped with the

switch. Restoring factory defaults results in erasing the

configuration file.

Admin > Factory Defaults

NOTE:

Restoring the factory defaults will

erase all configuration settings that you have

made. You can save a backup of your current

configuration settings from the

Admin > Save

Configuration

screen.

Admin > Server Logs

The

Server Logs

screen contains information for viewing

and configuring the Remote Log Servers. New log servers

can be defined, and the log severity sent to each server.

Admin > Server Logs

Server

Specifies the server to which logs can be sent.

UDP Port (1-65535)

Defines the UDP port to which the

server logs are sent. The possible range is 1 to 65535. The

default value is

514

.

Facility

Defines a user-defined application from which

system logs are sent to the remote server. Only one facility

can be assigned to a single server. If a second facility level

is assigned, the first facility is overridden. All applications

defined for a device utilize the same facility on a server.

The field default is

Local 7

. The possible field values are

Local 0 - Local 7.

Description

Provides a user-defined server description.

Minimum Severity

Indicates the minimum severity from

which logs are sent to the server. For example, if Notice

is selected, all logs from a Notice severity and higher are

sent to the remote server.

The

Add to List

button adds the Server Log configuration

to the Server Log Table at the bottom of the screen.

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Chapter 5

Advanced Configuration

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8-Port 10/100 Ethernet Switch with Webview

Admin > Memory Logs

The

Memory Log

screen contains all system logs in a

chronological order that are saved in RAM (Cache).

Admin > Memory Logs

Log Index

Displays the log number.

Log Time

Displays the time at which the log was

generated.

Severity

Displays the log severity.

Description

Displays the log message text.

Admin > Flash Logs

The

Flash Log

screen contains information about log

entries saved to the Log File in FLASH, including the time

the log was generated, the log severity, and a description

of the log message. The Message Log is available after

reboot.

Admin > Flash Logs

Log Index

Displays the log number.

Log Time

Displays the time at which the log was

generated.

Severity

Displays the log severity.

Description

Displays the log message text.

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58

About Gigabit Ethernet and Fiber Optic Cabling

8-Port 10/100 Ethernet Switch with Webview

Appendix A

Appendix A:

About Gigabit Ethernet

and Fiber Optic Cabling

Gigabit Ethernet

Gigabit Ethernet runs at speeds of 1Gbps (Gigabit per

second), ten times faster than 100Mbps Fast Ethernet, but

it still integrates seamlessly with 100Mbps Fast Ethernet

hardware. Users can connect Gigabit Ethernet hardware

with either fiber optic cabling or copper Category

5e cabling, with fiber optics more suited for network

backbones. As the Gigabit standard gradually integrates

into existing networks, current computer applications will

enjoy faster access time for network data, hardware, and

Internet connections.

Fiber Optic Cabling

Fiber optic cabling is made from flexible, optically efficient

strands of glass and coated with a layer of rubber tubing,

fiber optics use photons of light instead of electrons to

send and receive data. Although fiber is physically capable

of carrying terabits of data per second, the signaling

hardware currently on the market can handle no more

than a few gigabits of data per second.

Fiber cables come with two main connector types. The

most commonly used fiber optic cable is multi-mode

fiber cable (MMF), with a 62.5 micron fiber optic core.

Single-mode fiber cabling is somewhat more efficient

than multi-mode but far more expensive, due to its smaller

optic core that helps retain the intensity of traveling light

signals. A fiber connection always require two fiber cables:

one transmits data, and the other receives it.

Each fiber optic cable is tipped with a connector that fits

into a fiber port on a network adapter, hub, or switch.

In the USA, most cables use a square SC connector that

slides and locks into place when plugged into a port or

connected to another cable. In Europe, the round ST

connector is more prevalent.

For Gigabit Ethernet, you must use the Linksys MGBT1,

MGBSX1, or MGBLH1 miniGBIC modules with the Linksys

Gigabit Switches. The MGBSX1 and the MGBLH1 require

fiber cabling with LC connectors, and the MGBT1 requires

a Category 5e Ethernet cable with an RJ-45 connector.

For Fast Ethernet, you must use the MFEFX1 (100BASE-FX)

or MFELX1 (100BASE-LX) SFP transceivers.

Page 65 / 86

59

Downloading Using Xmodem

8-Port 10/100 Ethernet Switch with Webview

Appendix B

Appendix B:

Introduction

Startup Menu Procedures

The Startup menu can be entered when booting the

device. There is a two second window of time to enter the

Startup Menu immediately after the POST test. The menu

can be accessed directly from a terminal connected to the

console port. The Startup menu procedures can be done

using the ASCII terminal or Windows HyperTerminal.

The software download procedure is performed when a

new version must be downloaded to replace corrupted

files, update or upgrade the system software. To download

software from the Startup menu:

To enter the Startup menu:

Power off your computer and Switch.

1.

Connect

the

provided

null

modem

cable

from

the

2.

COM port on your computer to the Console port on

the Switch.

Power on your computer and launch HyperTerminal,

3.

follow the instructions in Chapter 4: Configuration

Using the Console Interface to configure HyperTerminal

to connect to the Switch.

Power

on

the

Switch

and

watch

for

4.

the auto-boot message:

Autoboot in 2 seconds - press

RETURN

or

Esc

to abort

and enter prom.

Auto-Boot Messages

When the auto-boot message appears, press the

5.

Enter

key to access the Startup menu.

Startup Menu

NOTE:

If a selection is not made within 35

seconds (default), the device times out and you

will need to disconnect the power to restart the

process.

Select

6.

[1] Download Software

and a message will

appear Downloading code using XMODEM with

characters running across the screen. If you do not

perform the steps on the next page to locate the file

for download within a certain time, the device will

reset.

Select

7.

Send File

from the

Transfer

pull-down menu.

Send File

In

the

8.

Filename:

field, enter the file path for the file

to be downloaded or click Browse to locate the file.

Only valid files, with a *.ros or *.rfb suffix, that have

been provided by Linksys, can be downloaded.

Downloading

invalid

files

will

result in unpredictable behavior.

Ensure that the Xmodem protocol is selected in the

Protocol:

field.

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