Imc Access etherlinx/4 User manual

LED Indicators

Access EtherLinX/4 features diagnostic LEDs. The LED functions are:

POWER (on back of unit)

• Glows green when POWER is on.

UPLINK and DOWNLINK (1 - 4)

LNK/ACT

• Glows green when link is established on port.

• Blinks green during data activity on port.

FDX/COL

• Glows yellow when port is operating in Full-Duplex.

• Blinks yellow when collisions occur on port.

General Information

IMC NETWORKS TECHNICAL SUPPORT

TEL: (949) 465-3000; (800) 624-1070 (in the U.S and Canada);

+32-16-550880 (Europe)

FAX: (949) 465-3020

E-MMail: techsupport@imcnetworks.com

Web: www.imcnetworks.com

SPECIFICATIONS

Environmental

Operating Temperature: 32° - 122° F (0° - 50° C)

Storage Temperature: 0° - 160° F (-20° - 70° C)

Humidity: 5 - 95% (non-condensing)

Power Consumption (typical): 1.5A

Throughput

Up to full wire speed on all ports except the fourth Downlink (this port also

functions as a serial port).

19772 Pauling • Foothill Ranch, CA 92610-2611 USA

TEL: (949) 465-3000 • FAX: (949) 465-3020

www.imcnetworks.com

The information in this document is subject to change without notice. IMC Networks assumes no responsibility for any

errors that may appear in this document. Access

EtherLinX/4

is a trademark of IMC Networks. Other brands or product

names may be trademarks and are the property of their respective companies.

Document Number 52-80120-00 A2 July 2003

About Access EtherLinX/4

Access EtherLinX/4 enables service providers to offer differentiated data networking or

VPN services to multi-tenant building and business customers. Residing at the customer

premises or at the service provider POP, Access EtherLinX/4 provides a VLAN-based

Layer 2 entry point to the MAN fiber network, trunking, differentiating and separating

customer traffic. Featuring SNMP management, bandwidth control, QoS, traffic priori-

tization and multicast pruning (using IGMP v1, v2), it is an ideal solution for delivering

Ethernet-based services to customers quickly and cost-effectively. Access EtherLinX/4

also features Telnet, and firmware upgrading through serial configuration or Telnet via a

TFTP server. Access EtherLinX/4 includes one Uplink port (either 100Base-FX fiber or

10/100 twisted pair), four secure 10/100 twisted pair Ethernet downlink ports1(for con-

necting users/LANs) and an internal AC power supply.

Installing Access EtherLinX/4

Access EtherLinX/4 comes ready to install. To install Access EtherLinX/4, make sure the

unit is placed on a suitable flat surface. Attach the cables between the Access

EtherLinX/4 and each device that will be interconnected, then plug the unit into a reli-

able, filtered power source. All features, such as FiberAlert and Auto-Negotiation, are

software-configurable. Refer to the help file for configuration information.

About FiberAlert

Access EtherLinX/4 includes the advanced troubleshooting feature, FiberAlert, which

minimizes the problems associated with the loss of one strand of fiber. If a strand is

unavailable, Access EtherLinX/4 notes the loss of link. The device will then stop trans-

mitting data and the link signal until a signal or link pulse is received. The result is that

the link LED on BOTH sides of the fiber connection will go out indicating a fault some-

where in the fiber loop. Using FiberAlert, a local site administrator is notified of a fault

and can quickly determine where a cable fault is located. Please refer to the Help File

for FiberAlert configuration information.

Auto-Negotiation, Duplex Mode and Speed

The twisted pair ports on Access EtherLinX/4 auto-negotiate for speed and duplex

mode. This device also provides the option of selectively advertising or forcing the speed

and duplex mode. If the device has a fiber Uplink port, it does not auto-negotiate; it

always operates at 100 Mbps Full-Duplex. Configure features via the management soft-

ware. Please refer to the help file for more information.

Auto-NNegotiation

Access EtherLinX/4 ships from the factory with Auto-Negotiation enabled on the twist-

ed pair ports. In this mode, the twisted pair port negotiates for speed and duplex.

1Downlink ports are isolated from one another (i.e. there is no communication between downlink ports).

Access EtherLinX/4

Installation

Guide

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conversion products available from IMC Networks.

DOWNLOADING FILES

Access EtherLinX/4 allows you to download firmware from a central server via

TFTP protocol. This download can be initiated via serial configuration or Telnet ses-

sion. Make sure the IP Address and the name of the file you wish to download are

correct in the Current Values section of the Main Configuration screen. If this infor-

mation is not correct, make changes in the (see page 4). To download a file, press

the Space Bar when in the Command List section of the Main Configuration screen

(serial configuration). Type download and press Enter to be taken to the Download

a File screen. This screen displays the IP Address of the TFTP server and the name

of the file you wish to download. Press Enter to start downloading the file.

ADDITIONAL DEVICE-SPECIFIC OPTIONS

Access EtherLinX/4 also includes the following device-specific options:

•tasks: Displays the Task List

•cleandb: Reboot with clean database

This removes all information in the database except IP address of device

•date: Displays the PROM build date

•Reboot: Reboots the unit

•Memory: Displays the memory useage

Press the Space Bar when in the Command List section of the Main Configuration

screen (serial configuration/Telnet session), type the name of the action you want to

do (as shown above) and press Enter.

USING TELNET

Assign the Access EtherLinX/4 an IP address BEFORE using a Telnet session (see page

3 for Assigning IP Information). All configuration that can be done via the serial port

can also be performed using Telnet. Use only one Telnet session at a time. Do not

use an RS-232 serial session and a Telnet session at the same time.

ABOUT DHCP

There is a DHCP client in the Access EtherLinX/4. By default, the DHCP client is

disabled. If a DHCP server is present on the network, the DHCP client will initiate

a dialogue with the server during the boot up sequence. The server will then issue

an IP address, Default Gateway and Subnet mask to the Access EtherLinX/4 chassis.

Once the new IP address is received, Access EtherLinX/4 will reboot so that the new

IP address will take effect. See the About Serial Port Configuration section for

Enable/Disable information. If there is no DHCP server on the network, use iConfig

or serial configuration to manually set the IP addresses.

Forcing

the

Speed

and

Duplex

Mode

The twisted pair downlink ports on Access EtherLinX/4 can also be manually set

for 10 Mbps or 100 Mbps operation and for Half- or Full-Duplex (i.e. 10 Mbps Full-

Duplex, 10 Mbps Half-Duplex, 100 Mbps Full-Duplex or 100 Mbps Half-Duplex).

Selective

Advertising

Selective Advertising, when used in combination with Auto-Negotiation, adver-

tises only the configured speed and duplex mode for the twisted pair port.

If a specific speed and/or duplex mode is desired, it is recommended that you use

Selective Advertising, rather than Force Mode, when connecting to devices that ONLY

auto-negotiate.

AutoCross Feature for Twisted Pair Connection

All twisted pair ports on Access EtherLinX/4 include AutoCross, a feature which

automatically selects between a crossover workstation or pass-through/repeater

hub connection depending on the connected device. Note that a MDI/MDIX but-

ton is not required.

About iView²

iView² is a cross-platform network management application for IMC Networks

intelligent networking devices. It features a graphic user interface (GUI) and gives

network managers the ability to monitor and control IMC Networks’ products from

virtually any 32-bit Windows platform. iView² can also function as a snap-in mod-

ule for many SNMP applications. Refer to the help files for iView² and Access

EtherLinX/4 for information regarding configuring and managing your Access

EtherLinX/4.

ABOUT ICONFIG

iConfig is an in-band configuration utility created by IMC Networks that lets

users quickly and easily complete the first stages of SNMP configuration for IMC

Networks SNMP-manageable devices. Tasks iConfig can perform include:

• setting the IP address, subnet mask and default gateway

• defining the community strings and SNMP traps

In addition to the above functions, iConfig offers an authorized IP address sys-

tem and access restriction to MIB groups supported by IMC Networks manageable

devices. These extra layers of security are purely optional and do not affect SNMP

compatibility in any way.

iConfig can also be used to upload new versions of the system software and new

MIB information. It also offers diagnostic capabilities for faster resolution of tech-

nical support issues. iConfig version 1.3 or above MUST be used for PROM

updates. HubControl32 and previous versions of iConfig will not work. iConfig

works with the following platforms:

• Windows 98™ • Windows NT™ • Windows 2000™ • Windows XP™

iConfig can be found on the iView² CD, or you can download it from the

IMC Networks Web site (http://www.imcnetworks.com/tech/techsup.asp). For

information regarding the use of iConfig, refer to the iConfig help file.

SNMP Management

SNMP management and iConfig are always through the Uplink port of Access

EtherLinX/4. This provides a higher level of security because end-users cannot

access management, alter settings, etc.

Bandwidth Control

Access EtherLinX/4 includes bandwidth control functionality. Please refer to the

help file for software configuration information

Assigning IP Information

In order for Access EtherLinX/4 to allow for SNMP-management, the unit must

be assigned IP configuration information (e.g., IP address, subnet mask, etc.) using

iConfig via iView²;the unit’s serial port or DHCP (Dynamic Host Control

Protocol). In addition to assigning an IP address and subnet mask, the former two

methods will also allow you to create community strings, assign access rights, con-

figure traps and more. However, iConfig offers more options than serial port con-

figuration (e.g., you can select which traps to assign with iConfig). After assigning

Access EtherLinX/4 an IP address, you can use iView² or another SNMP-compatible

Network Management System (NMS) to remotely configure, monitor and manage

Access EtherLinX/4.

ABOUT SERIAL PORT CONFIGURATION

Although Access EtherLinX/4 does not include a DB-9 serial port, you can use

the supplied RJ-45 to DB-9 adapter on Downlink Port 4 to allow for serial port con-

figuration. This adapter uses an IBM-compatible DB-9 serial connector.

To connect Access EtherLinX/4 to your terminal/computer, use a straight-through

(pin-to-pin) cable. (If your computer/terminal has a COM port using a connection

not compatible with a DB-9 connector, use the pin connection chart [below] for

reference in making a cable.) Make sure the cable length is under 50 ft. (15.24 m).

Plug one end of the cable into the DB-9 connector on Access EtherLinX/4 and the

other into the appropriate port on your computer/terminal. Set your computer/ter-

minal for VT-100 emulation. The serial port on the computer/terminal should be

set for: 38.4K

baud, 8

data

bits, 1

stop

bit,no

parity

and no

flow

control.

Main Configuration Screen

After running through an initial self test, the screen will display the follow-

ing message: “Press <Enter> for Device Configuration.” Press Enter to be

taken to the main configuration screen. Here you will find several displays:

SERIAL ADAPTER PIN CONNECTION

RJ-45 Pin # DB-9 Pin # Function

52Transmit (OUT)

73Receive (IN)

85Ground

1-4, 6 1, 4, 6

9Reserved

Device-Specific Configuration

CONFIGURING VLAN IDS

LANs consist of devices that are grouped within a certain physical proximity.

Virtual LANs (VLANs) allow devices that are in different LANs to communicate

with each other as if they were part of the same LAN. Access EtherLinX/4 is VLAN

compatible; it has the ability to accept traffic containing 802.1q VLAN tags on the

Uplink port and direct that traffic to the twisted pair downlink ports or to manage-

ment basedon VLAN ID.

To configure VLAN IDs, press the Space Bar when in the Command List section

of the Main Configuration screen (serial configuration). VLAN is an available

option. Type VLAN and press Enter to be taken to the VLAN Configuration screen.

To enable VLAN functionality, type Y(Yes) under Tags for the Uplink port, then

assign a separate VLAN ID for the Uplink port, each of the twisted pair downlink

ports and for management. Valid VLAN IDs are 1 to 4,094. Only the Uplink can

be enabled to forward tagged traffic.

To disable VLAN functionality, type N(No) under Tags for the Uplink port.

BASE VLAN PRIORITY

The Uplink port has two outgoing queues; one for high priority traffic and one

for low priority traffic. Via iView², you can set a Base VLAN Priority to designate

what will be high priority and low priority. If the Base VLAN Priority is 4, 0-3 are

low priority and 4-7 are high priority. If you change the Base VLAN Priority to 3,

0-2 are low priority and 3-7are high priority. In the VLAN Configuration screen

(shown above), enter a Priority (0 - 7) for each port and SNMP, if desired.

Saved

Values — displays changes made during current session.

IP Address (MUST be assigned during initial configuration)

Subnet Mask (MUST be assigned during initial configuration)

Default Gateway

Server IP Addr

New Prom File

Current

Values — displays values currently in use.

IP Address (IP address of SNMP agent)

Subnet Mask (mask to define IP subnet agent is connected to)

Default Gateway (default router for IP traffic outside subnet)

Server IP Addr

New Prom File

Command

List

I= Enter New Saved Parameter Values

P= Change Password

T= New Trap Destination

K= Remove ALL Trap Destinations

C= New Community String

U= Delete ALL Community Strings

D= Enable/disable DHCP

E= End Session

SSppaaccee= Device Specific Configuration (Tasks, CleanDB, Download,

Date, VLAN, Reboot and Memory) options available here (see pages 6-7).

Assigning TCP/IP Information

To modify the Saved Parameter Values (i.e., assign IP address and

subnet mask), press I. You will be instructed to enter the IP address and sub-

net mask for the connected device. Press Enter after each. You may also

assign a default gateway, if desired (press Enter to skip). When finished, press

Enter, then type “Reboot” for changes to take effect. The Saved Values and

Current Values should now both display the changes made (e.g., new IP

address and subnet mask).

Creating Community Strings

The purpose of community strings is to add a level of security to a network.

The default community string is named “public” and has read/write access.

IMC Networks recommends deleting Public, then adding necessary custom

communities strings such as one with read-only access (for general use), the

NOTE

Because a Delete key is not available on VT-100 terminal emulators; use the F2 key.

NOTE

You must reboot after making any modifications to the Saved Values or your changes

will not take effect. To reboot, type the word “Reboot” (no quote marks) at the prompt

on the main configuration screen, or turn the chassis power OFF then ON again.

other with read/write access (for the administrator). To create a new com-

munity string, go to the main configuration screen and press C. Enter the

name of the new community (up to 16 characters, no spaces) and press Enter.

Then type one of the following to assign the community string’s access rights:

• R= read-only access • W= read/write access • Enter = abort

Press Enter. When finished, press Enter, then type “Reboot” for changes

to take effect. The Saved Values and Current Values should now both dis-

play the changes made (e.g., new IP address and subnet mask).

Deleting Community Strings

To delete all community strings and start over, press U. You will then be

asked, “Are you sure you want to delete all future strings?” Press Yto pro-

ceed, Nto abort. Press Enter.

This function will delete ALL community strings. If you want to be able

to selectively delete community strings, use iConfig to configure your device.

Assigning Trap Destinations

Traps are sent by the manageable device to a management PC when a cer-

tain event takes place. To enter a trap destination, press T. You will then be

asked to “Enter a New IP Address.” Type the IP address of the destination

device and press Enter. Then type the name of the community string (that

teh destination device has been configured to accept) and press Enter. This

function enables ALL of the traps the device is capable of. If you want to be

able to selectively activate and de-activate traps, use iConfig to configure your

device. Supported traps are Enterprise specific and include: Link Down, Link

Up, Cold Start, Warm Start and Authentication Failure.

Removing Trap Destinations

To remove all trap destinations, press K. You will then be asked if you real-

ly want to remove all trap destinations. Press Yto continue. Press Nto abort.

Press Enter.

Password Protection

You can password protect the serial configuration process by pressing P

from the main configuration screen. You will be asked to enter a password.

(NOTE: Passwords are case sensitive.) Enter your password (spaces are NOT

allowed) and press Enter. You will then be asked for your password when-

ever you log on or off. To remove password protection, select Pand instead

of entering a password, press Enter. Should you forget the password, use

iConfig to access the back-up copy of the PROM, then reburn the flash PROM

(or contact IMC Networks technical support for assistance).

Ending Your Session

Be sure to press Ebefore disconnecting the cable in order to stop the continu-

ous stream of data to the serial port.