Comnet CNGE20MS User Manual

INSTALLATION AND OPERATION MANUAL

CNGE20MS

20-PORT MANAGED GIGABIT SWITCH

v1.2 May 2015

The ComNet™ CNGE20MS is a 20-port Managed Ethernet Switch designed to reliably
operate in harsh, environmentally challenging applications. It features eight (8)
10/100/1000BASE-T(X) and twelve (12) 100/1000BASE-FX SFP ports. The eight copper
ports are 10/100/1000Mbps configurable for either CAT5-e copper, while the twelve
SFP ports support multimode or single-mode optical fiber by the use of optional
ComNet SFPs. Exclusive to ComNet is C-Ring, a feature that protects the network from
interruptions or temporary malfunctions with fast recovery technology. Legacy ring
allows the switch to be used in an existing ring of ComNet X-Ring enabled switches.
Redundant DC inputs are included for uninterrupted operation in the event of a power
supply failure. The electrical ports support the 10/100/1000Mbps Ethernet IEEE802.3
protocol, and auto-negotiating and auto-MDi/MDiX features are provided. These
network-managed layer 2 switches are optically and electrically compatible with any
IEEE802.3 compliant Ethernet device. The CNGE20MS is DIN-rail or wall-mountable.

Rev. 7.20.15

INSTALLATION AND OPERATION MANUAL CNGE20MS

Contents

Regulatory Compliance Statement 3

Warranty 3

Disclaimer 3

Safety Information 3

Overview 4

Introduction 4

Software Features 5

Hardware Features 5

Hardware Installation 6

Installing the Switch on DIN-Rail 6

Wall Mounting Installation 8

Hardware Overview 9

Front Panel 9

Front Panel LEDs 10

Top View Panel 10

Rear Panel 11

Cables 12

Ethernet Cables 12

SFP 14

Console Cable 14

WEB Management 16

Command Line Interface Management 124

About CLI Management 124

Technical Specifications 142

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Regulatory Compliance Statement

Product(s) associated with this publication complies/comply with all applicable regulations. Please
refer to the Technical Specifications section for more details.

Warranty

ComNet warrants that all ComNet products are free from defects in material and workmanship
for a specified warranty period from the invoice date for the life of the installation. ComNet will
repair or replace products found by ComNet to be defective within this warranty period, with
shipment expenses apportioned by ComNet and the distributor. This warranty does not cover
product modifications or repairs done by persons other than ComNet-approved personnel, and
this warranty does not apply to ComNet products that are misused, abused, improperly installed,
or damaged by accidents.

Please refer to the Technical Specifications section for the actual warranty period(s) of the
product(s) associated with this publication.

Disclaimer

Information in this publication is intended to be accurate. ComNet shall not be responsible for its
use or infringements on third-parties as a result of its use. There may occasionally be unintentional
errors on this publication. ComNet reserves the right to revise the contents of this publication
without notice.

Safety Information

» Only ComNet service personnel can service the equipment. Please contact ComNet Technical

Support.

» The equipment should be installed in locations with controlled access, or other means of

security, and controlled by persons of authority.

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Overview

Introduction

The CNGE20MS is powerful managed Ethernet switch that has many features. These switches can
work under a wide temperature range, dusty environment and humidity condition They can be
managed by Windows Utility, WEB, TELNET and Console or other third-party SNMP software as well.

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Software Features

» Redundant Ethernet Ring (Recovery time < 30ms over 250 unit connection)

» Supports Ring Coupling, Dual Homing, RSTP over Ring

» Supports SNMPv1/v2c/v3 & RMON & Port base/IEEE 802.1Q VLAN Network Management

» Event notification by Email, SNMP trap and Relay Output

» Windows Utility, Web-based, Telnet and Console (CLI) configuration

» Enable/disable ports, MAC based port security

» Port based network access control (IEEE 802.1x)

» VLAN (IEEE 802.1q) to segregate and secure network traffic

» Radius centralized password management

» SNMPv3 encrypted authentication and access security

» RSTP (IEEE 802.1w)

» Quality of Service (IEEE 802.1p) for real-time traffic

» VLAN (IEEE 802.1q) with double tagging and GVRP supported

» IGMP Snooping for multicast filtering

» Port configuration, status, statistics, mirroring, security

» Remote Monitoring (RMON)

Hardware Features

» Redundant dual DC power inputs

» Wide Operating Temperature Range: -40º to 75ºC

» Storage Temperature: -40º to 85ºC

» Operating Humidity: 5% to 95%, non-condensing

» Casing: Aluminum

» 8 × 10/100/1000BASE–T(X) por ts

» 12 × 100/1000BASE-FX SFP ports

» Console Port

» Dimensions (W × D × H): 96.4 × 108.5 × 154 mm (3.8 × 4.2.7 × 6.06 in)

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Hardware Installation

Installing the Switch on DIN-Rail

Metal Spring

Each switch has a Din-Rail kit on the rear panel. The DIN-Rail kit affixes the switch to the DIN-Rail.
It is easy to install the switch on the Din-Rail:

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Mount Series on DIN-Rail

Step 1: Tilt the switch and mount the metal spring to DIN-Rail.

Step 2: Push the switch toward the DIN-Rail until you hear the spring snap into place

.

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Wall Mounting Installation

Each switch has another installation method for users to fix the switch. A wall mount panel can be
found in the package. The following steps show how to mount the switch on the wall:

Mounting the CNGE20MS on a Wall

Step 1: Remove Din-Rail kit.

Step 2: Use the 6 included screws to attach the wall mount panel as shown in the diagram below.

The screw specifications are shown in the following two pictures. In order to prevent switches from
being damaged, the screws should not be larger than the size that used in CNGE20MS switch.

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Hardware Overview

Front Panel

Port Description

SFP ports 12 × 100/1000BASE-X on SFP port

Copper Ports 8 × 10/100/1000BASE-T(X)

Console Use RS-232 with RJ-45 connector to manage switch.

1

2

12

3

4

5

6

7

11

10

CNGE20MS

8

9

1. LED for PWR. With PWR UP, the green LED will be light on

2. LED for PWR1

3. LED for PWR2

4. LED for R.M (Ring master). When the LED light is on, it means that this switch is the master.

5. LED for Ring. When the led light is on, it means that C-Ring is activated.

6. LED for Fault. When the light on, it means Power failure or Port down/fail.

7. Console port (RJ-45)

8. 100/1000BASE-X SFP ports

9. LED for SFP ports link status.

10. LED for Ethernet ports link status.

11. 10/100/1000BASE-T(X) ports

12. 100/1000 BASE-X SFP ports

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Front Panel LEDs

LED Color Status Description

PWR Green On DC power module up

PW1 Green On DC power module 1 activated.

PW2 Green On DC Power module 2 activated.

R.M Green On Ring Master.

Ring Green On Ring enabled.

Slowly blinking Ring has only one link (not enough to build the ring)

Fast blinking Ring is working normally.

Fault Amber On Fault relay. Power failure or Port down/fail.

Gigabit Ethernet ports

LNK /ACT Green Blinking Data transmitted.

Full Duplex Amber On Port works under full duplex.

Gigabit SFP ports

LNK /ACT Green Blinking Data transmitted.

On Port link up.

Top View Panel

The top panel component of CNGE20MS is shown as below:

1. Terminal block includes: PWR1, PWR2 (12-48V DC) and Fault Relay

2. Ground wire

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Rear Panel

The rear panel components of CNGE20MS are shown below:

1. Screw holes for wall mount kit.

2. Din-Rail kit

1

2

1

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Cables

Ethernet Cables

The CNGE20MS switch has standard Ethernet ports. According to the link type, the switch uses
CAT3, CAT4, CAT5 or CAT5-e UTP cables to connect to any other network device (PCs, servers,
switches, routers, or hubs). Please refer to the following table for cable specifications.

Cable Type Max. Length Connector

10BA SE-T CAT3, CAT4, CAT5 100Ω UTP 100m (328ft) RJ-45

100BASE-T X CAT5 100Ω UTP UTP 100m (328ft) RJ-45

1000BASE-TX CAT5/CAT5-e 100Ω UTP UTP 100m (328ft) RJ-45

Cable Types and Specifications

10/100BASE-T(X) Pin Assignments

With 10/100BASE-T(X) cable, pins 1 and 2 are used for transmitting data, and pins 3 and 6 are
used for receiving data.

Pin Number Assignment

1 TD+

2 TD-

3 RD+

4 Not used

5 Not used

6 RD-

7 Not used

8 Not used

10/100 BASE-T RJ-45 Pin Assignments

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Pin Number Assignment

1 BI_DA+

2 BI_DA-

3 BI_DB+

4 BI _DC+

5 BI_DC-

6 BI_DB-

7 BI_DD+

8 BI_DD-

1000 BASE-T RJ-45 Pin Assignments

The CNGE20MS switch supports auto MDI/MDI-X operation. You can use a straight-through cable
to connect a PC to the switch. The table below shows the 10/100BASE-T(X) MDI and MDI-X port
pin outs.

Pin Number MDI port MDI-X port

1 TD+(transmit) RD+(receive)

2 TD-(transmit) RD -(receive)

3 RD+(receive) TD+(transmit)

4 Not used Not used

5 Not used Not used

6 RD -(receive) TD-(transmit)

7 Not used Not used

8 Not used Not used

10/100 BASE-T MDI/MDI-X pins assignment

Pin Number MDI port MDI-X port

1 BI_DA+ BI_DB+

2 BI_DA- BI_DB-

3 BI_DB+ BI_DA+

4 BI _DC+ BI_DD+

5 BI_DC- BI_DD-

6 BI_DB- BI_DA-

7 BI_DD+ BI _DC+

8 BI_DD- BI_DC-

1000 BASE-T MDI/MDI-X pins assignment

Note: “+” and “-” signs represent the polarity of the wires that make up each wire pair.

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SFP

The switch has fiber optic ports with SFP connectors. The fiber optical ports are available with
multi-mode and single-mode fiber with various distance and connector types. Please remember
that the TX port of Switch A should be connected to the RX port of Switch B.

Switch-A Switch-B

Console Cable

The CNGE20MS switch can be managed by the console port. The DB-9 to RJ-45 cable can be
found in the package. You can connect them to the PC via a RS-232 cable with DB-9 female
connector and the other end (RJ-45 connector) connects to console port of the switch.

PC pin
out (male)
assignment

Pin #2 RD Pin #2 TD Pin #2

Pin #3 TD Pin #3 RD Pin #3

Pin #5 GD Pin #5 GD Pin #5

RS-232 with
DB9 female
connector

DB9 to RJ 45

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5

9

DB9 Male

1

1

6

5

6

DB9 Female

9

Pin Male Connector Female Connector

1 Received Line Signal Detect (Received by DTE

Device)

Received Line Signal Detect (Transmitted
from DCE Device)

2 Received Data (Received by DTE Device) Transmitted Data (Transmitted from DCE

Device)

3 Transmitted Data (Transmitted from DTE Device) Received Data (Received by DCE Device)

4 DTE Ready (Transmitted from DTE Device) DTE Ready (Received by DCE Device)

5 Signal Ground Signal Ground

6 DCE Ready (Received by DTE Device) DCE Ready (Transmitted from DCE Device)

7 Request to Send (Transmitted from DTE Device) Clear to Send (Received by DCE Device)

8 Clear to Send (Received by DTE Device) Request to Send (Transmitted from DCE

Device)

9 Ring Indicator (Received by DTE Device) Ring Indicator (Transmitted from DCE Device)

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WEB Management

Attention: While installing and upgrading firmware, please remove physical loop connection first.

DO NOT power off equipment while the firmware is upgrading!

Configuration by Web Browser

This section details configuration through the Web browser.

About Web-based Management

An embedded HTML web site resides in the flash memory on the CPU board. It contains
advanced management features and allows you to manage the switch from anywhere on the
network through a standard web browser such as Microsoft Internet Explorer.

The Web-Based Management function supports Internet Explorer 5.0 or later. It is based on Java
Applets with an aim to reduce network bandwidth consumption, enhance access speed and
present an easy viewing screen.

Note: By default, IE5.0 or later version does not allow Java Applets to open sockets. You need to
explicitly modify the browser setting in order to enable Java Applets to use network ports.

Preparing for Web Management

The default value is as below:
IP Address: 192.168 .10 .1
Subnet Mask: 255.255.255.0
Default Gateway: 192 .168 .10.2 54
User Name: admin
Password: admin

System Login

1. Launch Internet Explorer.

2. Type ht t p://192 .16 8.10.1. Press Enter.

3. The login screen appears.

4. Key in the username and password. The default username and password is admin.

5. Select Enter or OK button, then the main interface of the Web-based management appears.

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Login screen

Main Interface

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Main interface

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Basic Setting

System Information

The switch system information is provided here.

System Information interface

Label Description

System Contact The textual identification of the contact person for this managed node, together with

information on how to contact this person. The allowed string length is 0 to 255, and
the allowed content is the ASCII characters from 32 to 126.

System Name An administratively assigned name for this managed node. By convention, this is the

node’s fully-qualified domain name. A domain name is a text string drawn from the
alphabet (A-Z, a-z), digits (0-9), minus sign (-). No space characters are permitted as
part of a name. The first character must be an alpha character. And the first or last
character must not be a minus sign. The allowed string length is 0 to 255.

System Location The physical location of this node(e.g., telephone closet, 3rd floor). The allowed string

length is 0 to 255, and the allowed content is the ASCII characters from 32 to 126.

System
Description

The description of this switch. The allowed string length is 0 to 255, and the allowed
content is the ASCII characters from 32 to 126.

Save Select to save changes.

Reset Select to undo any changes made locally and revert to previously saved values.

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Admin & Password

This page allows you to configure the system password required to access the web pages or log
in from the CLI.

Label Description

Old Password Enter the current system password. If this is incorrect, the new password will not be set.

New Password The system password. The allowed string length is 0 to 31, and the allowed content is

the ASCII characters from 32 to 126.

Confirm New

Re-type the new password.

password

Save Select to save changes.

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Authentication Method

This page allows you to configure how a user is authenticated when he logs into the switch via one
of the management client interfaces.

Label Description

Client The management client for which the configuration below applies.

Authentication
Method

Authentication Method can be set to one of the following values:
none: authentication is disabled and login is not possible.
local: use the local user database on the switch for authentication.
radius: use a remote RADIUS server for authentication.

Fallback Enable fallback to local authentication by checking this box.

If none of the configured authentication servers are alive, the local user database is used
for authentication.
This is only possible if the Authentication Method is set to a value other than ‘none’ or
‘loc al’.

Save Click to save changes.

Reset Click to undo any changes made locally and revert to previously saved values.

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IP Setting

Configure the managed switch IP information on this page.

Label Description

DHCP Client Enable the DHCP client by checking this box. If DHCP fails and the configured IP

address is zero, DHCP will retry. If DHCP fails and the configured IP address is non­zero, DHCP will stop and the configured IP settings will be used. The DHCP client will
announce the configured System Name as hostname to provide DNS lookup.

IP Address Assign the IP address that the network is using. If DHCP client function is enabling,

you do not need to assign the IP address. The network DHCP server will assign the IP
address for the switch and it will be display in this column. The default IP is 192.168.10.1

IP Mask Assign the subnet mask of the IP address. If DHCP client function is enabling, you do

not need to assign the subnet mask

IP Router Assign the network gateway for the switch. The default gateway is 192.168.10.254

VLAN ID

Provide the managed VLAN ID. The allowed range is 1 through 4095.

SNTP Server SNTP is an acronym for Simple Network Time Protocol, a network protocol for

synchronizing the clocks of computer systems. SNTP uses UDP (datagrams) as transport
layer.

Save Select to save changes.

Reset Select to undo any changes made locally and revert to previously saved values.

Renew Select to renew DHCP. This button is only available if DHCP is enabled.

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IPv6 Setting

Configure the switch-management IPv6 information on this page.

Label Description

Auto
Configuration

Enable IPv6 auto-configuration by checking this box. If the system cannot obtain the
stateless address in time, the configured IPv6 settings will be used. The router may delay
responding to a router solicitation for a few seconds, the total time needed to complete
auto-configuration can be significantly longer.

Address Provide the IPv6 address of this switch. IPv6 address is in 128-bit records represented

as eight fields of up to four hexadecimal digits with a colon separating each field (:). For
example, ‘fe80::215:c5ff:fe03:4dc7’. The symbol ‘::’ is a special syntax that can be used
as a shorthand way of representing multiple 16-bit groups of contiguous zeros; but it
can appear only once. It can also represent a legally valid IPv4 address. For example,
‘::192.1.2.34’.

Prefix Provide the IPv6 Prefix of this switch. The allowed range is 1 to 128.

Router Provide the IPv6 gateway address of this switch. IPv6 address is in 128-bit records

represented as eight fields of up to four hexadecimal digits with a colon separating each
field (:). For example, ‘fe80::215:c5ff:fe03:4dc7’. The symbol ‘::’ is a special syntax that
can be used as a shorthand way of representing multiple 16-bit groups of contiguous
zeros; but it can appear only once. It can also represent a legally valid IPv4 address. . For
example, ‘::192.1.2.34’.

Save Click to save changes.

Reset Click to undo any changes made locally and revert to previously saved values.

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HTTPS

Label Description

Mode Indicates the HTTPS mode operation. Possible modes are:

Enabled: Enable HTTPS mode operation.
Disabled: Disable HTTPS mode operation.

Save Select to save changes.

Reset Select to undo any changes made locally and revert to previously saved values.

SSH

Label Description

Mode Indicates the SSH mode operation. Possible modes are:

Enabled: Enable SSH mode operation.
Disabled: Disable SSH mode operation.

Save Select to save changes.

Reset Select to undo any changes made locally and revert to previously saved values.

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LLDP

LLDP Parameters

This page allows the user to inspect and configure the current LLDP port settings.

Label Description

Enabled The switch will send out LLDP information, and will analyze LLDP information received

from neighbors.

Disabled The switch will not send out LLDP information, and will drop LLDP information received

from neighbors.

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LLDP Neighbor Information

This page provides a status overview for all LLDP neighbors. The displayed table contains a row
for each port on which an LLDP neighbor is detected. The columns hold the following information:

Label Description

Local Port The port on which the LLDP frame was received.

Chassis ID The Chassis ID is the identification of the neighbor’s LLDP frames.

Remote Port ID The Remote Port ID is the identification of the neighbor port.

System Name System Name is the name advertised by the neighbor unit.

Port Description Port Description is the port description advertised by the neighbor unit.

System
Capabilities

System Capabilities describes the neighbor unit’s capabilities. The possible capabilities
are:

1. Other

2. Repeater

3. Bridge

4. WLAN Access Point

5. Router

6. Telephone

7. DOCSIS cable device

8. Station only

9. Reserved
When a capability is enabled, the capability is followed by (+). If the capability is
disabled, the capability is followed by (-).

Management
Address

Management Address is the neighbor unit’s address that is used for higher layer entities
to assist the discovery by the network management. This could for instance hold the
neighbor’s IP address.

Refresh Select to refresh the page immediately.

Auto-Refresh Check this box to enable an automatic refresh of the page at regular intervals.

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LLDP Statistics

This page provides an overview of all LLDP traffic.

Two types of counters are shown. Global counters are counters that refer to the whole stack,
switch, while local counters refer to counters for the currently selected switch.

Global Counters

Label Description

Neighbor
entries were last
changed at

Total Neighbors
Entries Added

Total Neighbors
Entries Deleted

Total Neighbors
Entries Dropped

Total Neighbors
Entries Aged Out

Shows the time for when the last entry was last deleted or added. It is also shows the
time elapsed since last change was detected.

Shows the number of new entries added since switch reboot.

Shows the number of new entries deleted since switch reboot.

Shows the number of LLDP frames dropped due to that the entry table was full.

Shows the number of entries deleted due to Time-To-Live expiring.

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Local Counters

Label Description

Local Port The port on which LLDP frames are received or transmitted.

Tx Frames The number of LLDP frames transmitted on the port.

Rx Frames The number of LLDP frames received on the port.

Rx Errors The number of received LLDP frames containing some kind of error.

Frames DiscardedIf an LLDP frame is received on a port, and the switch’s internal table has run full, the

LLDP frame is counted and discarded. This situation is known as “Too Many Neighbors”
in the LLDP standard. LLDP frames require a new entry in the table when the Chassis ID
or Remote Port ID is not already contained within the table. Entries are removed from
the table when a given port links down, an LLDP shutdown frame is received, or when
the entry ages out.

TLVs Discarded Each LLDP frame can contain multiple pieces of information, known as TLVs (TLV is short

for “Type Length Value”). If a TLV is malformed, it is counted and discarded.

TLVs

The number of well-formed TLVs, but with an unknown type value.

Unrecognized

Org. Discarded The number of organizationally TLVs received.

Age-Outs Each LLDP frame contains information about how long time the LLDP information is

valid (age-out time). If no new LLDP frame is received within the age out time, the LLDP
information is removed, and the Age-Out counter is incremented.

Refresh Select to refresh the page immediately.

Clear Clears the local counters. All counters (including global counters) are cleared upon

reboot.

Auto-Refresh Check this box to enable an automatic refresh of the page at regular intervals.

Backup/Restore Configuration

You can save/view or load the switch configuration. The configuration file is in XML format with a
hierarchy of tags:

Firmware Update

This page facilitates an update of the firmware controlling the switch.

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DHCP Server

Setting

The system provides with DHCP server function. Enable the DHCP server function, the switch
system will be a DHCP server.

DHCP Dynamic Client List

When the DHCP server function is activated, the system will collect the DHCP client information
and display in here.

DHCP Client List

You can assign the specific IP address which is in the assigned dynamic IP range to the specific
port. When the device is connecting to the port and asks for dynamic IP assigning, the system will
assign the IP address that has been assigned before in the connected device.

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Port Setting

Port Control

This page displays current port configurations. Ports can also be configured here.

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Label Description

Port This is the logical port number for this row.

Link The current link state is displayed graphically. Green indicates the link is up and red that

it is down.

Current Link

Provides the current link speed of the port.

Speed

Configured Link
Speed

Select any available link speed for the given switch port.
Auto Speed selects the highest speed that is compatible with a link partner.
Disabled disables the switch port operation.

Flow Control When Auto Speed is selected for a port, this section indicates the flow control

capability that is advertised to the link partner.
When a fixed-speed setting is selected, that is what is used. The Current Rx column
indicates whether pause frames on the port are obeyed, and the Current Tx column
indicates whether pause frames on the port are transmitted. The Rx and Tx settings are
determined by the result of the last Auto-Negotiation.
Check the configured column to use flow control. This setting is related to the setting
for Configured Link Speed.

Maximum Frame Enter the maximum frame size allowed for the switch port, including FCS. The allowed

range is 1518 bytes to 9600 bytes.

Power Control Allows for changing the power savings mode parameters per port.

Disabled: All power savings mechanisms disabled.
ActiPHY: Link down power savings enabled.
PerfectReach: Link up power savings enabled.
Enabled: Both link up and link down power savings enabled.

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