J-Tech Digital JTD-2886 User manual

24 PORT POE SWITCH
JTD-2886 | JTECH-NSP24
48 PORT POE SWITCH
JTD-2887 | JTECH-NSP48
USER MANUAL
J-TECH DIGITAL INC.
9807 EMILY LANE
STAFFORD, TX 77477
TEL: [phone]
E-MAIL: [email protected]

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Table of Contents:
1. Introduction.......................................................................................................6
1.1 Product Introduction......................................................................................................6
1.2 Features..........................................................................................................................6
1.3 Overview..........................................................................................................................7
1.4 Web Management..........................................................................................................7
1.5 Web-based User Interface ............................................................................................8
1.6 Main Menu.......................................................................................................................9
2. Network Management .....................................................................................10
2.1 IP Configuration.............................................................................................................10
2.2 NTP Configuration.........................................................................................................11
2.3 Time Zone.......................................................................................................................12
2.4 SNMP Configuration......................................................................................................13
2.4.1 SNMP System Configuration ................................................................................................14
2.4.2 SNMP Trap Configuration .....................................................................................................15
2.4.3 Communities.............................................................................................................................16
2.4.4 Users..........................................................................................................................................16
2.4.5 Views..........................................................................................................................................17
2.4.6 Access........................................................................................................................................18
2.4.7 Groups........................................................................................................................................19
2.5 System Log Configuration ............................................................................................20
3. Port Configuration............................................................................................21
3.1 Port Configuration .........................................................................................................21
3.2 Link Aggregation............................................................................................................22
3.2.1 State Aggregation....................................................................................................................22

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3.2.2 LACP Aggregation ...................................................................................................................24
3.3 Port Mirroring.................................................................................................................25
3.4 Thermal Protection Configuration...............................................................................26
4. PoE Configuration ............................................................................................27
4.1 PoE Setting.....................................................................................................................29
4.2 PoE Status ......................................................................................................................30
4.3 PoE Scheduling ..............................................................................................................30
5. Advanced Configuration ..................................................................................31
5.1 VLAN................................................................................................................................31
5.2 Port Isolation ..................................................................................................................35
5.2.1 Port Group.................................................................................................................................35
5.2.2 Port Isolation ............................................................................................................................36
5.3 STP ..................................................................................................................................36
5.3.1 STP Bridge Settings................................................................................................................36
5.3.2 MSTI Mapping..........................................................................................................................38
5.3.3 MSTI Priorities .........................................................................................................................39
5.3.4 STP Bridge Port .......................................................................................................................40
5.3.5 MSTI Ports................................................................................................................................41
5.4 MAC Address Table.......................................................................................................42
5.5 IGMP Snooping ..............................................................................................................43
5.5.1 Basic Configuration.................................................................................................................43
5.2.2 IGMP Snooping VLAN Configuration...................................................................................44
5.3.3 Port Filtering Profile................................................................................................................45
5.6 IPMC Profile ...................................................................................................................46
5.7 IPV6 MLD Snooping ......................................................................................................47

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5.7.1 Basic Configuration.................................................................................................................48
5.7.2 VLAN Configuration ................................................................................................................49
5.8 ERPS................................................................................................................................49
5.9 LLDP................................................................................................................................52
5.10 Loop Protection............................................................................................................53
6. QoS Configuration............................................................................................54
6.1 QoS Port Classification.................................................................................................54
6.2 Port Policing ...................................................................................................................55
6.3 Storm Control Configuration ........................................................................................56
7. Security Configuration.....................................................................................57
7.1 Password.........................................................................................................................57
7.2 802.1X..............................................................................................................................57
7.3 DHCP Snooping .............................................................................................................59
7.3.1 DHCP Overview........................................................................................................................59
7.3.2 About DHCP Snooping ...........................................................................................................60
7.3.3 DHCP Snooping Configuration .............................................................................................61
7.4 IP & MAC Source Guard ...............................................................................................61
7.4.1 Port Configuration ...................................................................................................................62
7.4.2 Static Table...............................................................................................................................63
7.5 ARP Inspection...............................................................................................................64
7.5.1 Port Configuration ...................................................................................................................64
7.5.2 VLAN Configuration ................................................................................................................65
7.5.3 Static Table...............................................................................................................................66
7.6 ACL ..................................................................................................................................67
7.6.1 ACL Ports Configuration ........................................................................................................67

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7.6.2 Rate Limiter Configuration ....................................................................................................68
7.6.3 Access Control List Configuration .......................................................................................69
8. Diagnostics........................................................................................................70
8.1 Ping Test.........................................................................................................................70
8.2 Cable Diagnostics..........................................................................................................71
8.3 CPU Load........................................................................................................................71
9. System Defaults ...............................................................................................72
9.1 Restart Device................................................................................................................72
9.2 Factory Default ..............................................................................................................72
9.3 Firmware Upgrade.........................................................................................................73
9.4 Firmware Select.............................................................................................................73
9.4.1 Download Configuration File.................................................................................................74
9.4.2 Upload Configuration File......................................................................................................75
9.4.3 Activate Configuration............................................................................................................76
9.4.4 Delete Configuration File.......................................................................................................76
10. Appendix 1 Term List.....................................................................................77
11. Appendix 2 FAQ ..............................................................................................78
12. Maintenance ...................................................................................................79
13. Warranty ..........................................................................................................79
14. Mail-in Service................................................................................................80
15. Limited Warranty Limits and Exclusions .....................................................80

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1. Introduction
1.1 Product Introduction
This series supports IPv4 / IPv6 double stack platform, and supports a variety of senior
management functions, including POE management, MAC Table, VLANs, Port Isolation,
Loop Protection, IGMP Snooping, MLD Snooping, ERPS, DHCP client, DHCP Snooping,
STP/RSTP/MSTP, 802.1 x, QoS, port mirror, LLDP, static routing and NTP etc., 128 static
routing and basic QINQ, to provide users with the perfect solution; At the same time the
whole series supports SNMP v1 / v2, v3 (Simple Network Management Protocol), CLI
command line, Web net tube, TELNET mode of Management, make equipment management
more convenient, at the same time, with the ACL control function, attack prevention
function, ensuring secure management.
The series complies with FCC and CE standards, and support 1 channel ac power input.
Using the mute fan, can adapt to work environment temperature range of - 40 ℃ to 75 ℃,
also, it can satisfy the requirements of the various site and provide reliable, economical
solution.
1.2 Features
•IEEE802.3, IEEE802.3u, IEEE802.3ab, IEEE802.3z, IEEE802.3ae
•V-Ring looped redundancy technology. Self-healing time for looped network is less
than 20ms.
•PoE management, POE load timing restart and on-off.
•IGMP Snooping, Static multicast filtering, MLD Snooping filtering
•DHCP Snooping, protect from ARP attack, attack of illegal DHCP server access
•NTP, easy for real-time synchronization of network time
•Supports SNMP v1/v2/v3
•Supports LLDP
•ACL, enhance the flexibility and safety of network management
•QoS, enhance the stability of network

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•Port mirror, convenient for online debug
•Cable testing, convenient for the examining cable length in a project
•STP/RSTP/MSTP, enhance the stability of network
•IEEE802.1Q VLAN, IEEE802.1ad QINQ
•802.1x authentication to port and MAC
•Static routing L3 switching technology
•Operation temperature range: -40℃～75℃
•Storage temperature range: -40℃～85℃
1.3 Overview
Thank you for purchasing our managed switch series, whose software function can be
managed, configured and monitored via embedded Web-based (HTML) interface. By a
standard browser, you can manage switch at any remote site in the network. The browser,
as a universal access tool, uses the HTTP protocol to communicate with switch directly.
1.4 Web Management
Open installed web browser on your PC, input the switch’s IP address like
http://xxx.xxx.xxx.xxx, then open that URL to login web management.
Note: IP address of switch is 192.168.2.1 by default. So please input http://192.168.2.1 in
browser.
When the login window appears, please enter the default username "admin" with password
"system". Then click OK to login.

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Default User Name: admin
Default Password: system
1.5 Web-based User Interface
After entering the username and password, the main screen appears as shown in Figure 1-
2.

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This Main Page interface includes mainly 3 parts. Here is the description:
The Web agent displays an image of the Managed Switch’s ports. Different colors mean
different states, they are illustrated as follows:
1.6 Main Menu
Using the onboard Web agent, you can define system parameters, manage and control the
Managed Switch, and all its ports, or monitor network conditions. Via the Web-
Management, the administrator can set up the Managed Switch by selecting the functions
those listed in the Main Menu. Following is short description:

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2. Network Management
2.1 IP Configuration
Note: IP address of switch is 192.168.2.1 by default, and the default subnet mask is
255.255.255.0 (24).
Click "Network Admin" > ''IP'', and the screen will show as:

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Following is description detail about IP configuration:
Click ''Add Interface'' to create a new management for VLAN and IP address. Click ''Save''
to save settings.
Note: The switch only created VLAN1 by default. If user needs to use other VLAN for switch
management, please first add VLAN in the VLAN module, and add the relevant port to the
VLAN.
2.2 NTP Configuration
NTP is an acronym for Simple Network Time Protocol, a network protocol for synchronizing
the clocks of computer systems. You can specify NTP Servers and set GMT Time zone. The
NTP Configuration screens will appear after you click "Network Admin" > "NTP".

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Configuration object and description is:
After configuration was set, please click "Save" to save the setting.
2.3 Time zone
Time zone is to set the time of the switch, users can set the time according to their
locations. You can get into the time zone through “Network admin” > “Time zone”, as
below figure 2-3.

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2.4 SNMP Configuration
Simple Network Management Protocol (SNMP) is an application layer protocol that
facilitates the exchange of management information between network devices. It is part of
the Transmission Control Protocol/Internet Protocol (TCP/IP) protocol suite. SNMP enables
network administrators to manage network performance, find and solve network problems,
and plan for network growth.
This switch support SNMPv1, v2c, v3. Different versions of SNMP provide different security
level for management stations and network devices.
In SNMP’s v1 and v2c, it uses the "Community String" for user authentication. That string is
similar to password function. SNMP application of remote user and SNMP of the Switch
must use the same community string. SNMP packets of any unauthorized sites will be
ignored (discarded).
"Community String" by default for switch’s SNMPv1 and v2c access management is:

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Trap
Used by the agent to asynchronously inform the NMS of some event. These events may be
very serious, such as reboot (someone accidentally turned off switch), or just general
information, such as port status change. In these cases, switch create trap information and
send then to receiver or network admin. Typical trap includes authentication failure,
networking changes and cold/hot start trap.
MIB
MIB is a collection of managed objects residing in a virtual information store. Collections of
related managed objects are defined in specific MIB modules. Switch uses standard MIB-II
information management module. So, MIB object value can be read by any SNMP web-
managed software.
2.4.1 SNMP System Configuration
You can enable or disable the SNMP System Configuration. Its screen will appear after you
click" Network Admin" > "SNMP" > "System".

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Configuration object and description is:
2.4.2 SNMP Trap Configuration
User can enable or disable SNMP Trap function and set configuration. Click "Network
Admin" > "SNMP" > "Trap", then this screen will show as:

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2.4.3 Communities
Users can set the new community’s name through “Network admin” > “SNMP” >
“Communities”, as below figure 2-4-3.
Figure 2-4-3 Adding Community
Configuration Instruction:
2.4.4 Users
SNMP v3 is using USM (User-Based Security Model) authentication mechanism. The
administrator can set authentication and Encryption function. The authentication is to verify
the validity of a message sender and to avoid illegal user access. Encryption is for
encrypting the communication between NMS and Agents to be bugged. Adopting above two
functions, it provides greater security for communication between NMS and Agent.
Users can set a SNMP v3 account and EncryMode. Click “Network Admin” > “SNMP” >
“Users”, as below:

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Configuration Instruction:
2.4.5 Views
Users can set the visit view of SNMPv3. Click “Network Admin” > “SNMP” > “View”. As
below:

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2.4.6 Access
Uses can set an Access to load a built Views. Click “Network Admin” > “SNMP” >
“Access”, as below:
Figure 2-4-6 SNMPv3 Access Load Set

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2.4.7 Groups
Users can set Groups to load built Users and Access. Click “Network Admin” > “SNMP” >
“Groups”, as below:
Figure 2-4-7 SNMPV3 Groups Load Setting

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Configuration Instruction:
2.5 System Log Configuration
Users can configure switch’s system log, via following screen after clicking "Network
Admin" > "Syslog”.
Configuration object and description is: