Korenix JetNet 5428G Series User Manual
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Korenix JetNet 5428G Series User Manual

Rackmount managed ethernet switch
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Korenix JetNet 5428G Series
Rackmount Managed Ethernet Switch

User Manual

Version 1.5
April, 2014
www.korenix.com
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  • Page 1: User Manual

    Korenix JetNet 5428G Series Rackmount Managed Ethernet Switch User Manual Version 1.5 April, 2014 www.korenix.com...
  • Page 2 Korenix JetNet 5428G Series Rackmount Managed Ethernet Switch User’s Manual Copyright Notice Copyright  2006-2011 Korenix Technology Co., Ltd. All rights reserved. Reproduction in any form or by any means without permission is prohibited.
  • Page 3 Federal Communications Commission (FCC) Statement 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.

  • Page 4: Table Of Contents

    Index Introduction ......................2 Overview ....................2 Major Features ................... 3 Package List ....................3 Hardware Installation .....................5 Hardware Introduction ................5 Wiring Power Inputs .................. 6 Wiring Earth Ground ................. 7 Wiring Fast Ethernet Ports ................. 7 Wiring Fiber Ports ..................8 Wiring Gigabit Combo Ports ..............
  • Page 5 Korenix SFP family ................143 Korenix Private MIB................144 Revision History ..................145 About Korenix ..................146...

  • Page 6: Introduction

    RJ45 / MINI GBIC combo ports. The 5428G-2G-2FX is equipped with 24 10/100 Base-TX ports, 2 100M/Gigabit SFP plus 2 Gigabit RJ45/SFP combo ports. JetNet 5428G Series is a special design for control rooms where high-port density and performance are required. The...

  • Page 7: Major Features

    • Rigid Aluminum Case complies with IP31 • 90-264VAC or Dual 12-48VDC power input Note: The detail spec is listed in latest datasheet. Please download the latest datasheet in Korenix Web site. Package List Korenix JetNet 5428G Series products are shipped with following items:...
  • Page 8 JetNet 5428G 24+4G Rackmount Managed Ethernet Ring Switch JetNet 5428G (no SFP transceivers) Rack Mount Kit Console Cable Power Cord Document CD JetNet 5428G-DC 24+4G Rackmount Managed Ethernet Ring Switch with 12-48VDC input Includes: JetNet 5428G-DC (no SFP transceivers) Rack Mount Kit Console Cable Document CD JetNet 5428G-2G-2FX 24+4G Rackmount Managed Ethernet Ring Switch...

  • Page 9: Hardware Installation

    2 Hardware Installation This chapter includes hardware introduction, installation and configuration information. Following topics are covered in this chapter: 2.1 Hardware Introduction Dimension Panel Layout Bottom View 2.2 Wiring Power Inputs 2.3 Wiring Earth Ground 2.4 Wiring Ethernet Ports 2.5 Wiring Fiber Ports 2.6 Wiring Gigabit Combo Ports 2.7 Wiring RS-232 console cable 2.8 Rack Mounting Installation...

  • Page 10: Panel Layout

    The console port chooses RS-232 DB-9 types. The pin arrangement is “Pin2: TxD, Pin3: RxD, Pin5:GND”. Korenix attached the console cable within the shipped box. In the Rear panel, there are 2 types power input connector applied to JetNet 5428G and JetNet 5428G-DC.

  • Page 11: Wiring Earth Ground

    Insert positive and negative wires into V+ and V- contacts respectively of the terminal block connector Tighten the wire-clamp screws to prevent DC wires from being loosened. Power 1 and Power 2 support power redundancy, one of it failed, the other recovered. Positive and negative power system inputs are both accepted, but Power 1 and Power 2 must apply the same mode.

  • Page 12: Wiring Fiber Ports

    Korenix recommends using the Korenix certificated Gigabit SFP Transceiver. The web UI will show Unknown vendor type when choosing the SFP which is not certificated by Korenix. The certificated SFP transceiver includes 100Base-FX single/multi mode, 100/Gigabit BIDI/WDM, 1000Base-SX/LX single/multi mode ranger from 550m to 80KM.

  • Page 13: Wiring Gigabit Combo Ports

    Note: This is a Class 1 Laser/LED product. Don’t stare at the Laser/LED Beam. Wiring Gigabit Combo Ports JetNet 5428G series includes 4 RJ-45 Gigabit Ethernet ports. The speed of the gigabit Ethernet port supports 10Base-T, 100Base-TX and 1000Base-TX. JetNet 5428G/5428G-DC equips 4 Gigabit SFP ports combo with Gigabit Ethernet RJ-45 ports.
  • Page 14 (The picture is JetNet 5628G, the mounting method is the same.) 2.2.2 Mount the device in the 19’ rack by using four rack-mounting screws provided by the rack manufacturer. (The picture is JetNet 5628G, the mounting method is the same.) When installing multiple switches, mount them in the rack one below the other.

  • Page 15: Safety Warming

    Safety Warming 2.2.1 The Equipment intended for installation in a Restricted Access Location. 2.2.2 The warning test is provided in user manual. Below is the information: ”For tilslutning af de ovrige ledere, se medfolgende installationsvejledning”. “Laite on liitettava suojamaadoitus-koskettimilla varustettuun pistorasiaan” „Apparatet ma tilkoples jordet stikkontakt“...

  • Page 16: Preparation For Management

    3.3 Preparation for Telnet console Preparation for Serial Console In JetNet 5428G package, Korenix attached one RS-232 DB-9 to DB-9 console cable. Please attach RS-232 DB-9 connector to your PC COM port, connect the other end to the Console port of the JetNet 5428G. If you lose the cable, please follow the console cable PIN assignment to find one.

  • Page 17: Preparation For Web Interface

    3.2.1 Web Interface Korenix web management page is developed by JAVA. It allows you to use a standard web-browser such as Microsoft Internet Explorer, or Mozila, to configure and interrogate the switch from anywhere on the network. Before you attempt to use the embedded web interface to manage switch operation,...
  • Page 18 3.2.2 Secured Web Interface Korenix web management page also provides secured management HTTPS login. All the configuration commands will be secured and will be hard for the hackers to sniff the login password and configuration commands.

  • Page 19: Preparation For Telnet Console

    3.3.1 Telnet Korenix JetNet 5428G supports Telnet console. You can connect to the switch by Telnet and the command lines are the same as what you see by RS232 console port. Below are the steps to open Telnet connection to the switch.
  • Page 20 Download PuTTY: http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html The copyright of PuTTY Figure 0. . . Open SSH Client/PuTTY In the Session configuration, enter the Host Name (IP Address of your JetNet 5428G) and Port number (default = 22). Choose the “SSH” protocol. Then click on “Open” to start the SSH session console.
  • Page 21 3. After few seconds, the SSH connection to JetNet 5428G is opened. You can see the login screen as the below figure. 4. Type the Login Name and its Password. The default Login Name and Password are admin / admin. 5.

  • Page 22: Feature Configuration

    Then you can remotely connect to its embedded HTML web pages or Telnet console. Korenix web management page is developed by JAVA. It allows you to use a standard web-browser such as Microsoft Internet Explorer, or Mozila, to configure and interrogate the switch from anywhere on the network.

  • Page 23: Command Line Interface Introduction

    Command Line Interface Introduction The Command Line Interface (CLI) is the user interface to the switch’s embedded software system. You can view the system information, show the status, configure the switch and receive a response back from the system by keying in a command. There are some different command modes.
  • Page 24 Global Configuration Mode: Press configure terminal in privileged EXEC mode. You can then enter global configuration mode. In global configuration mode, you can configure all the features that the system provides you. Type interface IFNAME/VLAN to enter interface configuration mode, exit to leave. ? to see the command list.
  • Page 25 Available command lists of the global configuration mode. Switch(config)# interface fa1 Switch(config-if)# acceptable Configure 802.1Q acceptable frame types of a port. auto-negotiation Enable auto-negotiation state of a given port description Interface specific description duplex Specify duplex mode of operation for a port End current mode and change to enable mode exit Exit current mode and down to previous mode...
  • Page 26 Summary of the 5 command modes. Command Main Function Enter and Exit Method Prompt Mode User EXEC This is the first level of access. Enter: Login successfully Switch> User can ping, telnet remote Exit: exit to logout. device, and show some basic Next mode: Type enable to information enter privileged EXEC mode.
  • Page 27 Here are some useful commands for you to see these available commands. Save your time in typing and avoid typing error. ? To see all the available commands in this mode. It helps you to see the next command you can/should type as well. Switch(config)# interface (?) IFNAME Interface's name vlan...

  • Page 28: Basic Setting

    Basic Setting The Basic Setting group provides you to configure switch information, IP address, User name/Password of the system. It also allows you to do firmware upgrade, backup and restore configuration, reload factory default, and reboot the system. Following commands are included in this group: 4.2.1 Switch Setting 4.2.2 Admin Password 4.2.3 IP Configuration...
  • Page 29 the name in CLI system. System Location: You can specify the switch’s physical location here. The available characters you can input are 64. System Contact: You can specify contact people here. You can type the name, mail address or other information of the administrator. The available characters you can input are 64.
  • Page 30 4.2.3 IP Configuration This function allows users to configure the switch’s IP address settings. DHCP Client: You can select to Enable or Disable DHCP Client function. When DHCP Client function is enabled, an IP address will be assigned to the switch from the network’s DHCP server.
  • Page 31 the Leading zeroes in a group may be omitted. Thus, the example address may be written as: fe80::212:77ff:fe60:ca90. IPv6 Address field: typing new IPv6 address in this field. Prefix:the size of subnet or netwok, and it equivalent to the subnetmask, but writtenin different.The default subnet mask length is 64bits, and writen in decimal value -64.
  • Page 32 *Note: Please enable one synchronization protocol (PTP/NTP) only. JetNet 5428G series also provides Daylight Saving function for some territories use.
  • Page 33 Manual Setting: User can select “Manual setting” to change time as user wants. User also can click the button “Get Time from PC” to get PC’s time setting for switch. After click the “Get Time from PC” and apply the setting, the System time display the same time as your PC’s time.
  • Page 34 Time-zone: Select the time zone where the switch is located. Following table lists the time zones for different locations for your reference. The default time zone is GMT Greenwich Mean Time. Switch(config)# clock timezone 01 (GMT-12:00) Eniwetok, Kwajalein 02 (GMT-11:00) Midway Island, Samoa 03 (GMT-10:00) Hawaii 04 (GMT-09:00) Alaska 05 (GMT-08:00) Pacific Time (US &...
  • Page 35 42 (GMT+03:30) Tehran 43 (GMT+04:00) Abu Dhabi, Muscat 44 (GMT+04:00) Baku, Tbilisi, Yerevan 45 (GMT+04:30) Kabul 46 (GMT+05:00) Ekaterinburg 47 (GMT+05:00) Islamabad, Karachi, Tashkent 48 (GMT+05:30) Calcutta, Chennai, Mumbai, New Delhi 49 (GMT+05:45) Kathmandu 50 (GMT+06:00) Almaty, Novosibirsk 51 (GMT+06:00) Astana, Dhaka 52 (GMT+06:00) Sri Jayawardenepura 53 (GMT+06:30) Rangoon 54 (GMT+07:00) Bangkok, Hanoi, Jakarta...
  • Page 36 Once you finish your configuration, click on Apply to apply your configuration. 4.2.6 DHCP Server You can select to Enable or Disable DHCP Server function. JetNet 5428G will assign a new IP address to link partners. DHCP Server configuration After selecting to enable DHCP Server function, type in the Network IP address for the DHCP server IP pool, Subnet Mask, Default Gateway address and Lease Time for client.
  • Page 37 Manual Binding: JetNet 5428G provides a MAC address and IP address binding and removing function. You can type in the specified IP and MAC address, then click Add to add a new MAC&IP address binding rule for a specified link partner, like PLC or any device without DHCP client function.
  • Page 38 DHCP Relay Agent: The DHCP Relay Agent is also known as DHCP Option 82. It can help relay the DHCP Request to remote DHCP server located in different subnet. Note: The DHCP Server can not work with DHCP Relay Agent at the same time. Relay Agent: Choose Enable or Disable the relay agent.
  • Page 39 will be kept and work after power cycle. You can use show startup-config to view it in CLI. The Backup command can only backup such configuration file to your PC or TFTP server. Technical Tip: Default Configuration File: The switch provides the default configuration file in the system.
  • Page 40 4.2.8 Firmware Upgrade In this section, you can update the latest firmware for your switch. Korenix provides the latest firmware in Korenix Web site. The new firmware may include new features, bug fixes or other software changes. We’ll also provide the release notes for the update as well. For technical viewpoint, we suggest you use the latest firmware before installing the switch to the customer site.
  • Page 41 Figure 4.2.6.3 Error Message due to the file error or not a firmware for the switch. Before upgrading firmware, please check the file name and switch model name first and carefully. Korenix switch provide protection when upgrading incorrect firmware file, the system would not crash even download the incorrect firmware. Even we have the protection, we still ask you don’t try/test upgrade incorrect firmware, the unexpected event...
  • Page 42 Figure 4.2.6.5 Firmware Upgrade – TFTP Server mode. Type the IP address of TFTP Server and Firmware File Name. Then click on Upgrade to start the process. After finishing transmitting the firmware, the system will copy the firmware file and replace the firmware in the flash.
  • Page 43 Figure 4.2.7.2 Popup message screen to show you that have done the command. Click on OK to close the screen. Then please go to Reboot page to reboot the switch. Click on OK. The system will then auto reboot the device. Note: If you already configured the IP of your device to other IP address, when you use this command by CLI and Web UI, our software will not reset the IP address to default IP.
  • Page 44 SWITCH# show snmp-server contact korecare@korenix.com Switch> show ver JetNet5428G-2G-2FX Loader Version : 1.0.0.3 Firmware Version : 1.1.26-20101025-10:17:48 Copyright 2006-2009 Korenix Technology Co., Ltd. SWITCH# show hardware led led information mac mac address Switch# show hardware mac MAC Address : 00:12:77:FF:01:B0...
  • Page 45 Change administrator account orwell and password orwell success. SWITCH# show administrator Display Administrator account information name: orwell password: orwell IP Configuration IP Address/Mask SWITCH(config)# int vlan 1 (192.168.10.8, SWITCH(config-if)# ip 255.255.255.0 address dhcp SWITCH(config-if)# ip address 192.168.10.8/24 (DHCP Client) SWITCH(config-if)# ip dhcp client SWITCH(config-if)# ip dhcp client renew Gateway SWITCH(config)# ip route 0.0.0.0/0 192.168.10.254/24...
  • Page 46 primary secondary SWITCH(config)# ntp peer primary IPADDR SWITCH(config)# ntp peer primary 192.168.10.120 SWITCH(config)# clock timezone 26 Time Zone Sun Jan 1 04:13:24 2006 (GMT) Greenwich Mean Time: Dublin, Edinburgh, Lisbon, London Note: By typing clock timezone ?, you can see the timezone list.
  • Page 47 exit Exit current mode and down to previous mode IP protocol lease DHCP Lease Time list Print command list network dhcp network remove quit Exit current mode and down to previous mode service enable service Switch(config-dhcp)# service dhcp DHCP Server Enable <cr>...
  • Page 48 Excluded Address List IP Address 192.168.10.123 Manual Binding List IP Address MAC Address --------------- -------------- 0012.7701.0203 Leased Address List IP Address MAC Address Leased Time Remains --------------- -------------- -------------------- Switch# show ip dhcp relay DHCP Relay Information DHCP Relay Agent ON IP helper-address : 192.168.10.200 Re-forwarding policy: Replace Backup and Restore...

  • Page 49: Port Configuration

    Port Configuration Port Configuration group enables you to enable/disable port state, or configure port auto-negotiation, speed, and duplex, flow control, rate limit control and port aggregation settings. It also allows you to view port status and aggregation information. Following commands are included in this group: 4.3.1 Understand the port mapping 4.3.2 Port Control 4.3.3 Port Status...
  • Page 50 Select the port you want to configure and make changes to the port. In State column, you can enable or disable the state of this port. Once you disable, the port stop to link to the other end and stop to forward any traffic. The default setting is Enable which means all the ports are workable when you receive the device.
  • Page 51 Speed/Duplex: Current working status of the port. Flow Control: The state of the flow control. Note: The UI can display vendor name, wave length and distance of all Korenix Gigabit SFP transceiver family. If you see Unknown information, it may mean that the vendor doesn’t provide their information or that the information of their transceiver can’t be read.
  • Page 52 4.3.5 Storm Control The Storm Control is similar to Rate Control. Rate Control filters all the traffic over the threshold you input by UI. Storm Control allows user to define the Rate for specific Packet Types. Figure 4.3.5.1 Packet type: You can assign the Rate for specific packet types based on packet number per second.
  • Page 53 The aggregated ports can interconnect to the other switch which also supports Port Trunking. Korenix Supports 2 types of port trunking. One is Static Trunk, the other is 802.3ad. When the other end uses 802.3ad LACP, you should assign 802.3ad LACP to the trunk.
  • Page 54 Trunk Size: The switch can support up to 8 trunk groups. Each trunk group can support up to 8 member ports. Since the member ports should use same speed/duplex, the maximum trunk size is decided by the port volume. Group ID: Group ID is the ID for the port trunking group. Ports with same group ID are in the same group.
  • Page 55 column. Individual: When LACP is enabled, member ports of LACP group which are not connected to correct LACP member ports will be displayed in the Individual column. Link Down: When LACP is enabled, member ports of LACP group which are not linked up will be displayed in the Link Down column.
  • Page 56 Note: Administrative Status -> Port state of the port. Operating status -> Current status of the port. Duplex -> Duplex mode of the port. Speed -> Speed mode of the port. Flow control -> Flow Control status of the port. Rate Control Switch(config-if)# rate-limit Rate Control –...
  • Page 57 Port 2: Enable Broadcast Enable Multicast Enable …………. Port Trunking Switch(config)# lacp group 1 gi8-10 LACP Group 1 based on LACP(802.3ad) is enabled! Note: The interface list is fa1,fa3-5, gi8-10 Note: different speed port can’t be aggregated together. SWITCH(config-if)# lacp LACP –...
  • Page 58 Port Priority State ----- ----------- -------- -------- ------- 0x45 0x45 0x45 LACP group 2 is inactive LACP group 3 is inactive LACP group 4 is inactive Switch# show trunk group 1 Displ–y - Trunk FLAGS: I -> Individual P -> In channel D ->...

  • Page 59: Network Redundancy

    MultiRing Technology. The Ring ports can be LACP/Port Trunking ports, after aggregated ports to a group, the group of ports can act as the Ring port of the Ring. This is Korenix Pattened TrunkRing Technology. Advanced Rapid Dual Homing(RDH) technology also facilitates JetNet switch to connect with a core managed switch easily and conveniently.
  • Page 60 4.4.1 STP Configuration This page allows select the STP mode and configuring the global STP/RSTP Bridge Configuration. The STP mode includes the STP, RSTP, MSTP and Disable. Please select the STP mode for your system first. The default mode is RSTP enabled. After select the STP or RSTP mode, continue to configure the global Bridge parameters for STP and RSTP.
  • Page 61 Since different RSTP aware switches may have their own mechanism to calculate the message age. So that this is most possibly occurred when interoperate different vendors’ RSTP aware switches together. The maximum volume of the Korenix RSTP domain is 23, configure the MAX Age lower than 23 is recommended.
  • Page 62 Priority: Enter a value between 0 and 240, using multiples of 16. This is the value that decides which port should be blocked by priority in a LAN. Link Type: There are 3 types for you select. Auto, P2P and Share. Some of the rapid state transitions that are possible within RSTP depend upon whether the port of concern can only be connected to another bridge (i.e.
  • Page 63 4.4.3 RSTP Info This page allows you to see the information of the root switch and port status. Root Information: You can see root Bridge ID, Root Priority, Root Port, Root Path Cost and the Max Age, Hello Time and Forward Delay of BPDU sent from the root switch. Port Information: You can see port Role, Port State, Path Cost, Port Priority, Oper P2P mode, Oper edge port mode and Aggregated(ID/Type).
  • Page 64 The figure shows there are 2 VLANs/MSTP Instances and each instance has its Root and forwarding paths. A Common Spanning Tree (CST) interconnects all adjuacent MST regions and acts as a virtual bridge node for communications with STP or RSTP nodes in the global network. MSTP connects all bridges and LAN segments with a single Common and Internal Spanning Tree (CIST).
  • Page 65 After enabled MSTP mode, then you can go to the MSTP Configuraiton pages. MSTP Region Configuration This page allows configure the Region Name and its Revision, mapping the VLAN to Instance and check current MST Instance configuration. The network can be divided virtually to different Regions.
  • Page 66 Instance ID: Select the Instance ID, the available number is 1-15. VLAN Group: Type the VLAN ID you want mapping to the instance. Instance Priority: Assign the priority to the instance. After finish your configuration, click on Add to apply your settings. Current MST Instance Configuration This page allows you to see the current MST Instance Configuration you added.
  • Page 67 Path Cost: Enter a number between 1 and 200,000,000. This value represents the “cost” of the path to the other bridge from the transmitting bridge at the specified port. Priority: Enter a value between 0 and 240, using multiples of 16. This is the value that decides which port should be blocked by priority in a LAN.
  • Page 68 Multiple Super Ring (MSR) technology is Korenix’s 3 generation Ring redundancy technology. This is patented and protected by Korenix and is used in countries all over the world. MSR ranks the fastest restore and failover time in the world, 0 ms for restore and about milliseconds level for failover for 100Base-TX copper port.
  • Page 69 Ring Port2: Assign another port for ring connection Path Cost: Change the Path Cost of Ring Port2 Rapid Dual Homing: Rapid Dual Homing is an important feature of Korenix 3 generation Ring redundancy technology. When you want to connect multiple RSR or form redundant topology with other vendors,RDH could allow you to have maximum 7 multiple links for redundancy without any problem.
  • Page 70 4.4.8 Ring Info This page shows the MSR information. ID: Ring ID. Version: which version of this ring, this field could be Rapid Super Ring, Super Ring, or Any Ring Role: This Switch is RM or nonRM Status: If this field is Normal which means the redundancy is approved. If any one of the link in this Ring is broken, then the status will be Abnormal.
  • Page 71 Bridge Priority Switch(config)# spanning-tree priority <0-61440> valid range is 0 to 61440 in multiple of 4096 Switch(config)# spanning-tree priority 4096 Bridge Times Switch(config)# spanning-tree bridge-times (forward Delay) (max-age) (Hello Time) Switch(config)# spanning-tree bridge-times 15 20 2 This command allows you configure all the timing in one time. Forward Delay Switch(config)# spanning-tree forward-time <4-30>...
  • Page 72 Instance Vlans Mapped -------- -------------------------------------- 1,4-4094 Config HMAC-MD5 Digest: 0xB41829F9030A054FB74EF7A8587FF58D ------------------------------------------------ Remove Region Switch(config-mst)# no Name name name configure revision revision configure instance the mst instance Switch(config-mst)# no name Remove Instance Switch(config-mst)# no instance example <1-15> target instance number Switch(config-mst)# no instance 2 Show Pending MST Switch(config-mst)# show pending Configuration...
  • Page 73 Bridge Address : 0012.77ee.eeee Priority : 32768 Bridge Times : max-age 20, hello-time 2, forward-delay 15 BPDU transmission-limit : 3 Port Role State Cost Prio.Nbr Type Aggregated ------ ---------- ---------- -------- ---------- ------------ ------------ fa1 Designated Forwarding 200000 128.1 P2P(RSTP) fa2 Designated Forwarding 200000 128.2...
  • Page 74 Port Role State Cost Prio.Nbr Type ------ ---------- ---------- -------- ---------- ------------------ fa1 Designated Forwarding 200000 128.1 P2P Internal(MSTP) Internal(MSTP) fa2 Designated Forwarding 200000 128.2 P2P ###### MST01 vlans mapped: 2 Bridge address 0012.77ee.eeee priority 32768 (sysid 1) Root this switch for MST01 Port Role State...
  • Page 75 Change Ring name Switch(config-multiple-super-ring)# name MSR1 Note: Default Ring name is “Ring1”, 1 is the Ring ID. Super Ring Version Switch(config-multiple-super-ring)# version default set default to rapid super ring rapid-super-ring rapid super ring super-ring super ring Switch(config-multiple-super-ring)# version rapid-super-ring Priority Switch(config-multiple-super-ring)# priority <0-255>...
  • Page 76 Ring ID is optional. If the ring ID is typed, this command will only display the information of the target Ring.

  • Page 77: Vlan

    Layer 2 switch, without actually disconnecting these devices from their original switches. JetNet 5428G Series Industrial Ethernet Switch supports 802.1Q VLAN. 802.1Q VLAN is also known as Tag-Based VLAN. This Tag-Based VLAN allows VLAN to be created across different switches (see Figure 1).
  • Page 78 VLAN Configuration group enables you to Add/Remove VLAN, configure QinQ, port Ingress/Egress parameters and view VLAN table. VLAN Configuration group enables you to Add/Remove VLAN, configure port Ingress/Egress parameters and view VLAN table. Following commands are included in this group: 4.5.1 VLAN Port Configuration 4.5.2 VLAN Configuration 4.5.3 GVRP Configuration...
  • Page 79 Tunnel Mode: This is the new command for QinQ. The command includes None, 802.1Q Tunnel and 802.1Q Tunnel Uplink. The figure shows the relationship between 802.1Q Tunnel and 802.1Q Tunnel Uplink. Following is the modes you can select. None: Remian VLAN setting, no QinQ. 802.1Q Tunnel: The QinQ command applied to the ports which connect to the C-VLAN.
  • Page 80 Management VLAN ID: The switch supports management VLAN. The management VLAN ID is the VLAN ID of the CPU interface so that only member ports of the management VLAN can ping and access the switch. The default management VLAN ID is 1. Static VLAN: You can assign a VLAN ID and VLAN Name for new VLAN here.
  • Page 81 Note: Before you change the management VLAN ID by Web and Telnet, remember that the port attached by the administrator should be the member port of the management VLAN; otherwise the administrator can’t access the switch via the network. Note: Currently JetNet 5428G supports max 256 group VLAN. Static VLAN Configuration You can see the created VLANs and specify the egress (outgoing) port rule to be Untagged or Tagged here.
  • Page 82 want to remove one VLAN, select the VLAN entry. Then press Remove button. 4.5.3 GVRP configuration GVRP allows users to set-up VLANs automatically rather than manual configuration on every port of every switch in the network. In low volume and stable network, the GVRP can reduce the configuration effort.
  • Page 83 After created the VLAN, the status of this VLAN will remain in Unused status until you add ports to the VLAN. 4.5.5 CLI Commands of the VLAN Command Lines of the VLAN port configuration, VLAN configuration and VLAN table display Feature Command Line VLAN Port Configuration...
  • Page 84 ingress filtering disable Egress rule – Untagged Switch(config-if)# switchport access vlan 2 (for VLAN 2) switchport access vl–n - success Egress rule – Tagged Switch(config-if)# switchport trunk allowed vlan add 2 (for VLAN 2) Display – Port Ingress Switch# show interface fa1 Rule (PVID, Ingress Interface fastethernet1 Filtering, Acceptable...
  • Page 85 switchport dot1q-tunnel mode access interface fastethernet6 switchport access vlan add 1-2 switchport trunk allowed vlan add 10 switchport dot1q-tunnel mode uplink VLAN Configuration Create VLAN (2) Switch(config)# vlan 2 vlan 2 success Switch(config)# interface vlan 2 Switch(config-if)# Note: In CLI configuration, you should create a VLAN interface first.
  • Page 86 index 14 metric 1 mtu 1500 <UP,BROADCAST,RUNNING,MULTICAST> HWaddr: 00:12:77:ff:01:b0 inet 192.168.10.100/24 broadcast 192.168.10.255 input packets 639, bytes 38248, dropped 0, multicast packets 0 input errors 0, length 0, overrun 0, CRC 0, frame 0, fifo 0, missed 0 output packets 959, bytes 829280, dropped 0 output errors 0, aborted 0, carrier 0, fifo 0, heartbeat 0, window 0 collisions 0 GVRP configuration...

  • Page 87: Private Vlan

    Private VLAN The private VLAN helps to resolve the primary VLAN ID shortage, client ports’ isolation and network security issues. The Private VLAN provides primary and secondary VLAN within a single switch. Primary VLAN: The uplink port is usually the primary VLAN. A primary VLAN contains promiscuous ports that can communicate with lower Secondary VLANs.
  • Page 88 communicate with each other. 4.6.2 PVLAN Port Configuration PVLAN Port Configuration page allows configure Port Configuration and Private VLAN Association. Private VLAN Association Secondary VLAN: After the Isolated and Community VLAN Type is assigned in Private VLAN Configuration page, the VLANs are belonged to the Secondary VLAN and displayed here.
  • Page 89 For example: 1. VLAN Create: VLAN 2-5 are created in VLAN Configuration page. 2. Private VLAN Type: VLAN 2-5 has its Private VLAN Type configured in Private VLAN Configuration page. VLAN 2 is belonged to Primary VLAN. VLAN 3-5 are belonged to secondary VLAN (Isolated or Community). 3.
  • Page 90 4.6.3 Private VLAN Information This page allows you to see the Private VLAN information. 4.6.4 CLI Command of the PVLAN Command Lines of the Private VLAN configuration Feature Command Line Private VLAN Configuration Create VLAN Switch(config)# vlan 2 vlan 2 success Switch(config-vlan)# End current mode and change to enable mode exit...
  • Page 91 <cr> Isolated Type Switch(config-vlan)# private-vlan isolated <cr> Community Type Switch(config-vlan)# private-vlan community <cr> Private VLAN Port Configuraiton Go to the port Switch(config)# interface (port_number, ex: gi9) configuraiton Switch(config-if)# switchport private-vlan host-association Set the private VLAN host association mapping map primary VLAN to secondary VLAN Private VLAN Port Type Switch(config-if)# switchport mode private-vlan Set private-vlan mode...
  • Page 92 ---- ----------------- ----------------- primary gi10 isolated community community fa7,gi9 primary Host List Switch# show vlan private-vlan port-list Ports Mode Vlan ----- ----------- ---- normal normal normal normal normal normal host host host promiscuous 2 Running Config Switch# show run Information Building configuration...
  • Page 93 switchport mode private-vlan host switchport private-vlan host-association 2 3 interface gigabitethernet10 switchport access vlan add 2,5 switchport trunk native vlan 2 switchport mode private-vlan promiscuous switchport private-vlan mapping 2 add 3-5 ……… ……..

  • Page 94: Traffic Prioritization

    Traffic Prioritization Quality of Service (QoS) provides traffic prioritization mechanism which allows users to deliver better service to certain flows. QoS can also help to alleviate congestion problems and ensure high-priority traffic is delivered first. This section allows you to configure Traffic Prioritization settings for each port with regard to setting priorities.
  • Page 95 In JetNet, users can freely assign the mapping table or follow the suggestion of the 802.1p standard. Korenix uses 802.p suggestion as default values. You can find CoS values 1 and 2 are mapped to physical Queue 0, the lowest queue. CoS values 0 and 3 are mapped to physical Queue 1, the low/normal physical queue.
  • Page 96 After configuration, press Apply to enable the settings. 4.7.4 DSCP-Queue Mapping This page is to change DSCP values to Physical Queue mapping table. Since the switch fabric of JetNet only supports 4 physical queues, Lowest, Low, Middle and High. Users should therefore assign how to map DSCP value to the level of the physical queue.
  • Page 97 Queue Scheduling – Switch(config)# qos queue-sched Strict Priority Strict Priority wrr Weighted Round Robin Switch(config)# qos queue-sched sp The queue scheduling scheme is setting to Strict Priority. Queue Scheduli–g - Switch(config)# qos queue-sched wrr <1-10> Weights for COS queue 0 (queue_id 0) Switch(config)# qos queue-sched wrr 10 <1-10>...
  • Page 98 Note: Format: qos cos-map priority_value queue_value Map CoS 0 to Queue 1 Switch(config)# qos cos-map 0 1 The CoS to queue mapping is set ok. Map CoS 1 to Queue 0 Switch(config)# qos cos-map 1 0 The CoS to queue mapping is set ok. Map CoS 2 to Queue 0 Switch(config)# qos cos-map 2 0 The CoS to queue mapping is set ok.

  • Page 99: Multicast Filtering

    Multicast Filtering For multicast filtering, JetNet 5428G uses IGMP Snooping technology. IGMP (Internet Group Management Protocol) is an Internet Protocol that provides a way for internet device to report its multicast group membership to adjacent routers. Multicasting allows one computer on the internet to send data to a multitude of other computers that have identified themselves as being interested in receiving the originating computers data.
  • Page 100 Select All checkbox for all VLANs. Then press Enable. In the same way, you can also Disable IGMP Snooping for certain VLANs. IGMP Snooping Table: In the table, you can see multicast group IP address, VLAN ID it belongs to, and member ports of the multicast group. JetNet 5428G supports 256 multicast groups.
  • Page 101 This page allows users to configure IGMP Query feature. Since JetNet 5428G can only be configured by member ports of the management VLAN, IGMP Query can only be enabled on the management VLAN. If you want to run IGMP Snooping feature in several VLANs, you should notice that whether each VLAN has its own IGMP Querier first.
  • Page 102 4.8.4 GMRP To enable the GMRP configuration, the Global GMRP Configuration should be enabled first. And all the port interfaces should enable GMRP learning as well. Then the switch exchange the IGMP Table with other switches which is also GMRP-aware devices. 4.8.5 CLI Commands of the Multicast Filtering Command Lines of the multicast filtering configuration...
  • Page 103 - VLAN IGMP snooping is disabled on VLAN 3. Display – IGMP Switch# sh ip igmp Snooping Setting interface vlan1 enabled: Yes version: IGMPv1 query-interval; 125s query-max-response-time: 10s Switch# sh ip igmp snooping IGMP snooping is globally enabled Vlan1 is IGMP snooping enabled immediate-leave is disabled last-member-query-interval is 100 centiseconds Vlan2 is IGMP snooping enabled...
  • Page 104 Filtering unknown multicast addresses ok! Send to All Ports Switch(config)# no mac-address-table multicast filtering (No Discard, No Send to Query Ports) Switch(config)# no ip igmp snooping source-only-learning IGMP Snooping Source-Only-Learning disabled...

  • Page 105: Snmp

    SNMP Simple Network Management Protocol (SNMP) is a protocol used for exchanging management information between network devices. SNMP is a member of the TCP/IP protocol suite. JetNet 5428G series support SNMP v1 and v2c and V3. An SNMP managed network consists of two main components: agents and a manager.
  • Page 106 4.9.2 SNMP V3 Profile SNMP v3 can provide more security functions when the user performs remote management through SNMP protocol. It delivers SNMP information to the administrator with user authentication; all of data between JetNet 5428G and the administrator are encrypted to ensure secure communication.
  • Page 107 This page allows users to Enable SNMP Trap, configure the SNMP Trap server IP, Community name, and trap Version V1 or V2. After configuration, you can see the change of the SNMP pre-defined standard traps and Korenix pre-defined traps. The pre-defined traps can be found in Korenix private MIB.
  • Page 108 4.9.4 CLI Commands of the SNMP Command Lines of the SNMP configuration Feature Command Line SNMP Community Read Only Community Switch(config)# snmp-server community public ro community string add ok Read Write Community Switch(config)# snmp-server community private rw community string add ok SNMP Trap Enable Trap Switch(config)# snmp-server enable trap...

  • Page 109: Security

    4.10 Security JetNet 5428G provides several security features for you to secure your connection. The Filter Set is also known as Access Control List. The ACL feature includes traditional Port Security and IP Security. Following commands are included in this group: 4.9.1 Filter Set (Access Control List) 4.9.2 IEEE 802.1x 4.9.3 CLI Commands of the Security...
  • Page 110 MAC Filter (Port Security): The MAC Filter allows user to define the Access Control List for specific MAC address or a group of MAC addresses. Filter ID/Name: The name for this MAC Filter entry. Action: Permit to permit traffic from specified sources. Deny to deny traffic from those sources.
  • Page 111 Egress Port: Bind the MAC Filter rule to specific front port. Once you finish configuring the ACE settings, click on Add to apply your configuration. You can see below screen is shown. Example of the below Entry: Permit Source MAC “0012.7700.0000” to Destination MAC “0012.7700.0002”. The Permit rule is egress rule and it is bind to Gigabit Ethernet Port 25.
  • Page 112 Example: IP Standard Access List: This kind of ACL allows user to define filter rules according to the source IP address. IP Extended Access List: This kind of ACL allows user to define filter rules according to the source IP address, destination IP address, Source TCP/UDP port, destination TCP/UDP port and ICMP type and code.
  • Page 113 Filter ID/Name: The ID or the name for this IP Filter entry. Action: Permit to permit traffic from specified sources. Deny to deny traffic from those sources. Source/Destination Address: Type the source/destination IP address you want configure. Source/Destination Wildcard: This command allows user to define single host or a group of hosts based on the wildcard.
  • Page 114 4.10.2 Filter Set (Access Control List) After configured the ACL filter rules, remember associate this filter with the physical ports. Then the port has the capability to filter traffic/attach based on the packets lost. 4.10.3 IEEE 802.1x 4.10.3.1 802.1X configuration IEEE 802.1X is the protocol that performing authentication to obtain access to IEEE 802 LANs.
  • Page 115 System AuthControl: To enable or disable the 802.1x authentication. Authentication Method: Radius is a authentication server that provide key for authentication, with this method, user must connect switch to server. If user select Local for the authentication method, switch use the local user data base which can be create in this page for authentication.
  • Page 116 Once you finish configuring the settings, click on Apply to apply your configuration. Port control: Force Authorized means this port is authorized; the data is free to in/out. Force unauthorized just opposite, the port is blocked. If users want to control this port with Radius Server, please select Auto for port control.
  • Page 117 Click Default Selected to reset the configurable 802.1x parameters of selected port to the default values. 802.1X Port Status Here user can observe the port status for Port control status, Authorize Status, Authorized Supplicant and Oper Control Direction each port. 4.10.4 CLI Commands of the Security Command Lines of the Security configuration Feature...
  • Page 118 End current mode and change to enable mode exit Exit current mode and down to previous mode list Print command list Negate a command or set its defaults quit Exit current mode and down to previous mode remark Access list entry comment Add IP Extended Switch(config)# ip access-list extended access list...
  • Page 119 Switch(config-ext-acl)#permit ip 192.168.10.1 0.0.0.1 192.168.10.100 0.0.0.1 [IFNAME] Egress interface name Switch(config-ext-acl)#permit ip 192.168.10.1 0.0.0.1 192.168.10.100 0.0.0.1 gi26 Note: Follow the below rule to configure ip extended access list. IP Rule: Permit/Deny Source_IP wildcard Dest_IP wildcard Egress_Interface TCP Rule: Permit/Deny tcp Source_IP wildcard Dest_IP wildcard eq Given_Port_Number Egress_Interface UDP Rule: Permit/Deny udp Source_IP wildcard Dest_IP wildcard eq Given_Port_Number Egress_Interface...
  • Page 120 1234 RADIUS Server Port number NOT given. (default=1812) RADIUS Accounting Port number NOT given. (default=1813) RADIUS Server IP : 192.168.10.120 RADIUS Server Key : 1234 RADIUS Server Port : 1812 RADIUS Accounting Port : 1813 Switch(config)# radius Switch(config)# dot1x radius secondary-server-ip secondary-server-ip 192.168.10.250 key 5678 Port number NOT given.
  • Page 121 RADIUS Server Port : 1812 RADIUS Accounting Port : 1813 Secondary RADIUS Server IP : N/A Secondary RADIUS Server Key : N/A Secondary RADIUS Server Port : N/A Secondary RADIUS Accounting Port : N/A Switch# show dot1x username 802.1x Local User List Username : orwell , Password : * , VLAN ID : 1...

  • Page 122: Warning

    4.11 Warning JetNet 5428G provides several types of Warning features for you to remote monitor the status of end devices or the change of your network. The features include System Log and SMTP E-mail Alert. Following commands are included in this group: 4.10.1 Event Selection 4.10.2 Syslog Configuration 4.10.3 SMTP Configuration...
  • Page 123 Once you finish configuring the settings, click on Apply to apply your configuration. 4.11.2 SysLog Configuration System Log is useful to provide system administrator locally or remotely monitor switch events history. There are 2 System Log modes provided by JetNet 5428G, local mode and remote mode.
  • Page 124 Note: When enabling Local or Both mode, you can monitor the system logs in [Monitor and Diag] / [Event Log] page. 4.11.3 SMTP Configuration JetNet 5428G supports E-mail Warning feature. The switch will send the occurred events to remote E-mail server. The receiver can then receive notification by E-mail. The E-mail warning is conformed to SMTP standard.
  • Page 125 Switch(config)# no log syslog local SMTP Configuration SMTP Enable Switch(config)# smtp-server enable email-alert SMTP Email Alert set enable ok. Sender mail Switch(config)# smtp-server server 192.168.10.100 ACCOUNT SMTP server mail account, admin@korenix.com Switch(config)# smtp-server server 192.168.10.100 admin@korenix.com SMTP Email Alert set Server: 192.168.10.100, Account:...
  • Page 126 Receiver mail Switch(config)# smtp-server receipt korecare@korenix.com SMTP Email Alert set receipt 1: korecare@korenix.com ok. Authentication with Switch(config)# smtp-server authentication username admin username and password admin password SMTP Email Alert set authentication Username: admin, Password: admin Note: You can assign string to username and password.

  • Page 127: Monitor And Diag

    4.12 Monitor and Diag JetNet 5428G provides several types of features for you to monitor the status of the switch or diagnostic for you to check the problem when encountering problems related to the switch. The features include MAC Address Table, Port Statistics, Port Mirror, Event Log and Ping.
  • Page 128 4.12.2 Port Statistics In this page, you can view operation statistics for each port. The statistics that can be viewed include Link Type, Link State, Rx Good, Rx Bad, Rx Abort, Tx Good, Tx Bad and Collision. Rx means the received packet while Tx means the transmitted packets. Note: If you see many Bad, Abort or Collision counts increased, that may mean your network cable is not connected well, the network performance of the port is poor…etc.
  • Page 129 4.12.3 Port Mirroring Port mirroring (also called port spanning) is a tool that allows you to mirror the traffic from one or more ports onto another port, without disrupting the flow of traffic on the original port. Any traffic that goes into or out of the Source Port(s) will be duplicated at the Destination Port.
  • Page 130 4.12.4 Event Log In the 4.10.3, we have introduced System Log feature. When System Log Local mode is selected, JetNet 5428G will record occurred events in local log table. This page shows this log table. The entry includes the index, occurred data and time and content of the events. Click on Clear to clear the entries.
  • Page 131 4.12.6 Ping Utility This page provides Ping Utility for users to ping remote device and check whether the device is alive or not. Type Target IP address of the target device and click on Start to start the ping. After few seconds, you can see the result in the Result field.
  • Page 132 Modbus/TCP that it can be polled through Ethernet. Thus the Modbus/TCP master can read or write the Modbus registers provided by the Industrial Ethernet Switch. Korenix JetNet 5428G implements the Modbus/TCP registers into the latest firmware. The registers include the System information, firmware information, IP address, interfaces’...
  • Page 133 Word 0 Lo byte = ‘e’ Word 1 Hi byte = ‘T’ Word 1 Lo byte = ‘N’ Word 2 Hi byte = ‘e’ Word 2 Lo byte = ‘t’ Word 3 Hi byte = ‘5’ Word 3 Lo byte = ‘4’ Word 4 Lo byte = ‘2’...
  • Page 134 Word 1 Lo byte = 0x04 Word 2 Hi byte = 0x05 Word 2 Lo byte = 0x06 0x020F to 241 words Reserved address space 0x2FF 0x0300 2 words IP address Ex: IP = 192.168.10.1 Word 0 Hi byte = 0xC0 Word 0 Lo byte = 0xA8 Word 1 Hi byte = 0x0A Word 1 Lo byte = 0x01...
  • Page 135 0x0411 1 word 0x0000:Off 0x0001:On 0xFFFF: unavailable 0x0412 1 word 0x0000:Off 0x0001:On 0xFFFF: unavailable 0x0413 1 word 0x0000:Off 0x0001:On 0xFFFF: unavailable 0x0414 to 12 words Reserved address space 0x041F 0x0420 1 word 0x0000:Off 0x0001:On 0x0421 1 word 0x0000:Off 0x0001:On 0x0422 1 word 0x0000:Off 0x0001:On...
  • Page 136 0x0003: auto (half) 0x0004: auto (full) 0x0005: auto 0xFFFF: unavailable 0x1260 to 1 word Speed 0x127F 0x0001: 10 0x0002: 100 0x0003: 1000 0x0004: 2500 0x0005: 10000 0x0101: auto 10 0x0102: auto 100 0x0103: auto 1000 0x0104: auto 2500 0x0105: auto 10000 0x0100: auto 0xFFFF: unavailable 0x1280 to...
  • Page 137 0x0001: MAC 0x0002: PHY 0xFFFF: unavailable 0x1360 to 1 word STP Status 0x137F 0x0000: disabled 0x0001: blocking 0x0002: listening 0x0003: learning 0x0004: forwarding 0x1380 to 1 word Default CoS Value for untagged packets 0x139F 0x13A0 to 1 word MDIX 0x13BF 0x0000: disable 0x0001: enable 0x0002: auto...
  • Page 138 0x185F 0x1860 to 1 words Tx power 0x187F 0x1880 to 2 words Warning Tx power 0x18BF 0x18C0 to 1 words Rx power 0x18DF 0x18E0 to 2 words Warning Rx power 0x191F 0x1920 to 1760 words Reserved address space 0x1FFF Inbound packet information 0x2000 to 2 words Good Octets...
  • Page 139 0x2340 to 2 words FCSError 0x237F 0x2380 to 2 words Collisions 0x23BF 0x23C0 to 2 words Dropped Frames 0x23FF 0x2400 to 2 words Last Activated SysUpTime 0x243F 0x2440 to 191 words Reserved address space 0x24FF Outbound packet information 0x2500 to 2 words Good Octets 0x253F...
  • Page 140 0x29FF Number of frames received and transmitted with a length(in octets) 0x2A00 to 2 words 0x2A3F 0x2A40 to 2 words 65 to 127 0x2A7F 0x2A80 to 2 words 128 to 255 0x2ABF 0x2AC0 to 2 words 256 to 511 0x2AFF 0x2B00 to 2 words 512 to 1023...
  • Page 141 ***** MULTICAST MAC ADDRESS ***** Vlan Mac Address Status Ports ---- --------------- ---- ------- -------------------------- 0100.5e40.0800 0100.5e7f.fffa fa4,fa6 Show MAC Address Switch# show mac-address-table dynamic Table – Dynamic Learnt Destination Address Address Type Vlan Destination Port MAC addresses ------------------- --------------- ------- ------------------------ 000f.b079.ca3b Dynamic 0012.7701.0386...
  • Page 142 Display Switch# show mirror Mirror Status : Enabled Ingress Monitor Destination P rt : fa6 Egress Monitor Destination P rt : fa6 Ingress Source Po ts :fa1,fa2, Egress Source Po ts :fa1,fa2, Event Log Display Switch# show event-log <1>Jan 1 02:50:47 snmpd[101]: Event: Link 4 Down. <2>Jan 1 02:50:50 snmpd[101]: Event: Link 5 Up.

  • Page 143: Device Front Panel

    4.13 Device Front Panel Device Front Panel command allows you to see LED status of the switch. You can see LED and link status of the Power, DO, DI, R.M. and Ports. Feature On / Link UP Off / Link Down Note Power Green...

  • Page 144: Save To Flash

    4.14 Save to Flash Save Configuration allows you to save any configuration you just made to the Flash. Powering off the switch without clicking on Save Configuration will cause loss of new settings. After selecting Save Configuration, click on Save to Flash to save your new configuration.

  • Page 145: Logout

    4.15 Logout The switch provides 2 logout methods. The web connection will be logged out if you don’t input any command after 30 seconds. The Logout command allows you to manually logout the web connection. Click on Yes to logout, No to go back the configuration page. Command Lines: Feature Command Line...

  • Page 146: Appendix

    5 Appendix Pin Assignment of the RS-232 Console Cable The total cable length is 150cm.

  • Page 147: Korenix Sfp Family

    Korenix certificated SFP transceivers when you constructing your network. Korenix will keep on certificating and updating the certificated SFP transceivers in Korenix web site and purchase list. You can refer to the web site to get the latest information about SFP transceivers.

  • Page 148: Korenix Private Mib

    SNMP. But, since some commands can’t be found in standard MIB, Korenix provides Private MIB to meet up the need. Compile the private MIB file by your SNMP tool. You can then use it. Private MIB can be found in product CD or downloaded from Korenix Web site.

  • Page 149: Revision History

    Revision History Edition Date Modifications V1.5 Sept. 22, 2014 Remove power failure alarm. Update MSR CLI. V1.4 April 8, 2014 Update Port Status, remove SFP V/W/D info Add DC1 and DC2 power limitation V1.3 Oct. 1, 2013 Add IPv6 and Modbus/TCP features Update daylight saving time V1.2 Jun.

  • Page 150: About Korenix

    Less Time At Work! Fewer Budget on applications! The Korenix business idea is to let you spend less time at work and fewer budget on your applications. Do you really want to go through all the troubles but still end up with low quality products and lousy services? Definitely not! This is why you need Korenix.

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