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3. LED Indicators

 

AirLive SNMP-GSH2004L User’s Manual 

11

 
 
 
 
 
 

 
Before connecting any network device to 

SNMP-GSH2004L

, you should take a few 

minutes to look over this chapter and get familiar with the front panel LED indicators of your 
Switch.  
 

3.1 Comprehensive LEDs 

 

 

 

 

3.2 LED Table 

 

LED 

Color/Status 

Description 

System Green 

Power 

on 

10/100/1000Ethernet TP Port 1 to 24 LED

 

Green On 

Link Up 

Link/ ACT 

Green Blinking   

Data activating 

Green On 

Link 1000Mbps 

SPD 

Yellow On 

Link 10/100Mbps 

1000SX/LX Gigabit Fiber Port 21,22,23,24 LED

 

Green On 

Link Up 

Link/ ACT 

Green Blinking   

Data activating 

Green On 

Link 1000Mbps 

SPD 

Yellow On 

Link 100Mbps 

3 

3

 

. 

LED Indicators

 

Summary of Contents for SNMP-GSH2004L

Page 1: ...1 SNMP GSH2004L 20 Port Gigabit 4 Port UTP SFP Combo Web Smart Switch User s Manual ...

Page 2: ...nical photocopying or recording without the written consent of OvisLink Corp OvisLink Corp has made the best effort to ensure the accuracy of the information in this user s guide However we are not liable for the inaccuracies or errors in this guide Please use with caution All information is subject to change without notice All Trademarks are properties of their respective holders ...

Page 3: ...se the separation between the equipment and receiver z Connect the equipment into an outlet on a circuit different from that to which the receiver is connected z Consult the dealer or an experienced radio TV technician for help FCC Caution Any changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate this equipment This devic...

Page 4: ...2 3 Installation Site Preparation 6 2 4 Rack Mounting 7 2 5 Desktop Installation 8 2 6 Cabling Requirements 9 2 7 Connecting to Power 10 2 8 Reset to Default 10 3 LED Indicators 11 3 1 Comprehensive LEDs 11 3 2 LED Table 11 4 Web Management 12 4 1 Setup your computer for Web management 12 4 2 Remote Management 14 4 3 Get Into the Web management 16 4 4 Configuration 17 4 4 1 System Information 17 4...

Page 5: ... Loop Detection 34 4 4 12 Broadcast Strom Protection 36 4 4 13 SNMP 38 4 5 Monitoring 40 4 5 1 Statistics Overview 40 4 5 2 Detailed Statistics 41 4 5 3 RSTP Status 44 4 5 4 IGMP Status 47 4 5 5 Ping 48 4 6 Maintenance 49 4 6 1 Warm Restart 50 4 6 2 Factory Default 50 4 6 3 Software Upload 50 4 6 4 Configuration File Transfer 51 4 6 5 Logout 51 Appendix A Product Specifications 53 Appendix B Troub...

Page 6: ... In addition the switch implements the QoS Quality of Service VLAN and Trunking It is suitable for office application Others the switch increase support the Power saving for reduce the power consumption with ActiPHY Power Management and PerfectReach Power Management two technique It could efficient saving the switch power with auto detect the client idle and cable length to provide different power...

Page 7: ...g IP Address and Password information are in the Quick Setup section Chapter 2 Detail installation instruction Chapter 3 LED indicators Chapter 4 Detail information on Web management including how to setup remote management 1 3 Quick Setup This section provides the essential information for experienced users to operate the switch immediately For detailed installation instruction please see chapter...

Page 8: ...ps SPD Yellow On Link 100Mbps 1 4 Installation Steps This section lists the installation procedures in steps Each step s instruction is thoroughly explained in the subsequent sections of following chapter Step1 Connect your PC to the switch Step2 Set your PC s IP address to 192 168 2 50 Step3 Open your web browser and enter 192 168 2 1 to get into the switch s web management Step4 Enter admin for ...

Page 9: ...npack the package carton 2 Open the package carton and take out the contents carefully 3 Put back all the shipping materials such as plastic bag padding and linings into the package carton and save them for future transport need After unpacking and taking out the entire package contents you should check whether you have got the following items SNMP GSH2004L One AC Power Cord Quick Installation Gui...

Page 10: ...ports can operate in half duplex mode for 10 100Mbps and full duplex mode for 10 100 1000Mbps Combo SFP Ports Port 21 24 The Switch is equipped with four combo SFP ports supported optional 1000BASE SX LX SFP module The 1000BASE T port 21 24 are the same ports with the SFP port 21 24 when plug in the SFP module the device will activate SFP and the RJ45 port will be disabled Note When the port was s...

Page 11: ... than 3kg on top of the switch The location must preferably be free from excessive dust away from heat vent hot air exhaust and direct sunlight The switch should not be placed near large electric motors or other strong electromagnetic sources As a reference the strength of the electromagnetic field on site should not exceed the RFC standards for IEC 801 3 Level 2 3V M field strength The air temper...

Page 12: ...en mount it as a unit on the rack To mount the unit on a rack please follow the steps below Step 1 First align the holes on the bracket with the holes on both side of the switch Step 2 Insert screws into the holes and then fasten the bracket on one side of the switch with a screwdriver Step 3 Repeat Step 1 and 2 to fasten the bracket on the other side of the switch Step 4 Mount the unit on the rac...

Page 13: ...from sliding off its position They also allow adequate ventilation space when you place the switch on top of another device Desktop installation The location you choose to install your switch and the way you configure your network may greatly affect its performance Please see the previous section for installation site preparation Do not place more than 1 5kg 6 6lbs of weight on the top of the swit...

Page 14: ...able 100 ohm Category 5 UTP STP cable 100BASE TX 100 ohm Category 5 UTP STP cable or better CAT 5E recommended 1000BASE T Auto MDI MDI X function The SNMP GSH2004L is equipped with Auto MDI MDI X function which allows you to use straight through cable even when connecting to another switch hub Simply use the straight through cable for all types of 10 100BASE TX connections either to a PC or to a n...

Page 15: ...in the power you can then turn on the Power Switch to activate the switch 2 8 Reset to Default When you forgot your IP or password please use the mode reset button for the factory default setting Please take the following steps to reset the Web Smart Switch back to the original default Step 1 Turn on the SNMP GSH2004L Step 2 Press and hold the mode reset button continuously for 10 seconds and rele...

Page 16: ...f your Switch 3 1 Comprehensive LEDs 3 2 LED Table LED Color Status Description System Green Power on 10 100 1000Ethernet TP Port 1 to 24 LED Green On Link Up Link ACT Green Blinking Data activating Green On Link 1000Mbps SPD Yellow On Link 10 100Mbps 1000SX LX Gigabit Fiber Port 21 22 23 24 LED Green On Link Up Link ACT Green Blinking Data activating Green On Link 1000Mbps SPD Yellow On Link 100M...

Page 17: ...same subnet as the switch For two network devices to be on the same subnet they must have the following 2 criteria Their IP address must be on the same subnet For example if one IP address is 192 168 2 1 The other s IP address must be 192 168 2 x x is any number between 2 and 254 for Class C subnet To find out the IP address information for your computer Under WinXP Vista Win7 Win8 please open Com...

Page 18: ...the task bar please go to the Start Settings Network Local Connection of the task bar s Start menu Step 2 Clock on the property icon Step 3 Double click on the Internet Protocol TCP IP Step 4 Click on Use the following IP address button and enter the computer s address manually This IP address must be on the same subnet as the switch but different from the switch s IP Please make sure the IP is no...

Page 19: ... Modem for remote management whose service provider uses DHCP for IP assignment N browser 4 2 Remote Management this section you will learn how to setup your computer and the router for remote web e In management Remote management allows MIS to manage a switch from outside of the switch s IP domain or from Internet Depending on the type of Internet connection you hav there are two ways to setup th...

Page 20: ... Cable provider will assign the switch with a IP and Gateway Go to the console port management to find out what IP has been assigned to the switch W switch s IP address on the web browser e If you have an IP sharing router in the network you can open a virtual server on the router the diagram above the router has the WAN given by the ISP port IP address 200 On the Switch tting set the gateway to R...

Page 21: ...192 168 0 200 If your router require enter t 80 for both Web browser s address field 4 3 Get Into the Web management nd switch s IP you can get into the web tep 1 Open the Internet Explorer s in the Address field and press enter You should see the following welcome screen after the process is completed After you have properly configured the computer a management by the following steps S Step 2 Ent...

Page 22: ...t is the ma function tree for web user interface T The switch s image on connection status When a port is plugged in the switch s image will show a plug on the corresponding port 4 4 Configuration onfiguration includes the following functions ation ooping etection Protection the following sessions we will talk in detail about the management functions under the 4 1 System Information most important...

Page 23: ... 18 System Description e is switch Firmware Version e is switch Hardware Version e his switch MAC Address address of the management agent in this switch Th simple description of th Th firmware version of th Th hardware version of t It is the Ethernet MAC ...

Page 24: ... are allowed in this parameter Any System Contact t ontact name for this switch Any alphanumeric character and null System Location t ation name for this switch Any alphanumeric character and null Th serial number is a Show the Temperatu Sh w the Volta Sh w the active IP addres Sh w the active subnet mas Sh w the active gatewa Sh w the IP address Default 0 0 0 0 Sh w the lease time lef Se a specia...

Page 25: ... minute and a 4 2 Ports Configuration e settings of the ports on the switch By this function you Default disable Ma ually assign the IP addr Default 192 168 2 1 As gn the subnet mask to the Default 255 255 255 0 As gn the network gatew Default 192 168 2 254 Sh w the management VLA Se a password f alphanumeric character is acceptable Default airlive Se the auto logout timer The va decimal point is ...

Page 26: ...4 Web Management AirLive SNMP GSH2004L User s Manual 21 ...

Page 27: ...eed mode no default value In Forced mode default value depends on your setting Flow Control You can Just tick the check box to enable flow control If flow control is set Enable both parties can send PAUSE frame to the transmitting device s if the receiving port is too busy to handle When it is set Disable there will be no flow control in the port It drops the packet if too much to handle Default D...

Page 28: ...rt based VLAN groups Tag based Tag based VLAN identifies its member by VID This is quite different from port based VLAN If there are any more rules in ingress filtering list or egress filtering list the packet will be screened with more filtering criteria to determine if it can be forwarded The switch supports supplement of 802 1q For more details please see the section VLAN in Chapter 3 Each tag ...

Page 29: ... in tag based mode Member In modify function this is used to enable or disable if a port is a member of the new added VLAN Enable means it is a member of the VLAN Just tick the check box beside the port x to enable it Port Port number VLAN aware Enabled Discard other VLAN group packets only forward this port joined VLAN group packets ...

Page 30: ...e to create a Tag based VLAN with VID x For example if port x receives an untagged packet the switch will apply the PVID assume as VID y of port x to tag this packet the packet then will be forwarded as the tagged packet with VID Port based VLAN mode ID Group ID When you want to edit a VLAN group you must select the Group ID field Then you will enter Tag Base VLAN Group Setting or Port Base VLAN G...

Page 31: ...d port An address table memory stores an address table having a destination address and port number pair A forwarding map generator generates a forwarding map which is responsive to a destination address of a data packet The method for isolating ports on a layer 2 switch comprises configuring each of the ports on the layer 2 switch as a protected port or a non protected port A destination address ...

Page 32: ...ate the bandwidth of these ports This means you can apply your current Ethernet equipment to build the bandwidth aggregation For example if three Fast Ethernet ports are aggregated into a logical port then this logical port s bandwidth would be as three times high as a single Fast Ethernet ports Normal Set up the ports that do not join any aggregation trunking group Group 1 8 Group the ports you c...

Page 33: ...nts of 4096 Therefore there are 16 distinct values Hello Time Interval in seconds at which the root device transmits a configuration message BPDU frame Number between 1 10 default is 2 Max Age The maximum time in seconds a device can wait without receiving a configuration message before attempting to reconfigure That also means the maximum life time for a BPDU frame Number between 6 40 default is ...

Page 34: ...anagement AirLive SNMP GSH2004L User s Manual 29 4 4 8 IGMP Snooping IGMP Snooping lets administrators configure a switch to constrain multicast traffic by listening to Internet Group Management Protocol IGMP ...

Page 35: ... Default none Unregistered IGMP Flooding enabled Just tick the check box to enable this function Default enable VLAN ID At the IGMP Enable mode being selected it will list the VLAN ID number IGMP Snooping Enabled After IGMP Enabled function start up then user can tick the check box to enable this function Default enable IGMP Querying Enabled After IGMP Enabled function start up then user can tick ...

Page 36: ...lti ports For example we assume that Port A and Port B are Source Ports and Port C is Mirror Port respectively thus the traffic passing through Port A and Port B will be copied to Port C for monitor purpose Source Port Set up the port for being monitored Just tick the check box beside the port x and valid port is Port 1 24 Mirror Port Use the drop down menu to select a mirror port ...

Page 37: ... DSCP The switch only supports Strict Priority High priority queue is always passed first 802 1p QoS Mode This function will affect the priority of VLAN tag Based on priority of VLAN tag it can arrange 0 7 priorities priorities can map to 4 queues of the switch low normal medium high and possess different bandwidth distribution according to your weight setting Prioritize Traffic Five Prioritize Tr...

Page 38: ...ate 1990s the IETF redefined the meaning of the 8 bit SERVICE TYPE field to accommodate a set of differentiated services DS Under the differentiated services interpretation the first six bits comprise a codepoint which is sometimes abbreviated DSCP and the last two bits are left unused DSCP can form total 64 0 63 kinds of Traffic Class based on the arrangement of 6 bit field in DSCP of the IP pack...

Page 39: ...l High Priority Port Number When Custom is selected for Prioritize Traffic you may assign specific Port Number for DSCP Configuration DSCP Configuration 64 kinds of priority traffic as mentioned above user can set up any of Queue low normal medium and high In default Priority 0 63 are mapping to Queue high 4 4 11 Loop Detection ...

Page 40: ...ng detection frame MAC address the same as oneself from port show Loop detection happens The port will be locked when it received the looping detection frames If you want to resume the locked port please find out the looping path and take off the looping path then select Unlock port and click on Apply to turn on the locked ports Port Local port number ...

Page 41: ...n detect loop happens and port will be Locked If Loop did not happen port maintains Unlocked Unlock port When ticking the port port locked will be opened and turned into unlocked If not ticking the port Port maintains locked 4 4 12 Broadcast Strom Protection When the broadcast packets received by the switch exceed the threshold configured the port will be blocked for a period of time which can be ...

Page 42: ...on the port still exceed the threshold If the broadcast traffic is still higher than the port will be closed for a period of time again If the broadcast traffic is under the threshold the port will re open and forward the packets normally Mode Controls whether Broadcast Strom Protection is enabled as a whole ...

Page 43: ...Management System NMS running the Simple Network Management Protocol SNMP can manage the Managed devices equipped with SNMP agent provided that the Management Information Base MIB is installed correctly on the managed devices It is a protocol used to govern the transfer of information between SNMP manager and agent and traverses the Object Identity OID of the management Information Base MIB descri...

Page 44: ... as password for authenticating if the requesting network management unit belongs to the same community group If they both don t have the same community name they don t belong to the same group Hence the requesting network management unit cannot access the device with different community name via SNMP protocol If they both have the same community name they can talk each other Community name is use...

Page 45: ...t or Warm Boot of system Event Default is Disable TP and Fiber Port Event The TP and Fiber Port Event trap enable here is used for the Link Up or Link Down of system Event Default is Disable 4 5 Monitoring Monitoring includes the following functions Statistics Overview Detailed Statistics RSTP Status IGMP Status Ping 4 5 1 Statistics Overview The section describes to the Port statistics informatio...

Page 46: ... the number of incomplete transmissions per port 4 5 2 Detailed Statistics Display the detailed counting number of each port s traffic In the Fig 4 20 the window can show all counter information each port at one time Rx Packets The counting number of the packet received RX Octets Total received bytes Rx High Priority Packets Number of Rx packets classified as high priority Rx Low Priority Packets ...

Page 47: ...r of the packet transmitted Tx Octets Total transmitted bytes Tx High Priority Packets Number of Tx packets classified as high priority Tx Low Priority Packets Number of Tx packets classified as low priority Tx Broadcast Show the counting number of the transmitted broadcast packet Tx Multicast Show the counting number of the transmitted multicast packet Tx Broad and Multicast Show the counting num...

Page 48: ... packets received Tx 64 Bytes Number of 64 byte frames in good and bad packets transmitted Tx 65 127 Bytes Number of 65 126 byte frames in good and bad packets transmitted Tx 128 255 Bytes Number of 127 255 byte frames in good and bad packets transmitted Tx 256 511 Bytes Number of 256 511 byte frames in good and bad packets transmitted Tx 512 1023 Bytes Number of 512 1023 byte frames in good and b...

Page 49: ... CRC Rx Jabber Number of long frames according tomax_length register with invalid CRC Rx Drops Frames dropped due to the lack of receiving buffer Tx Collisions Number of collisions transmitting frames experienced Tx Drops Number of frames dropped due to excessive collision late collision or frame aging Tx Overflow Number of frames dropped due to the lack of transmitting buffer 4 5 3 RSTP Status ...

Page 50: ...s switch is a root bridge the This switch is Root will show this switch s bridge ID Root Priority This parameter configures the spanning tree priority globally for this Root The device with the highest priority becomes the STP root device However if all devices have the same priority the device with the lowest MAC address will then become the root device Number between 0 61440 in increments of 409...

Page 51: ...it to a normal spanning tree port immediately if it receives a BPDU P2P Port We say a port is a point to point link from RSTP s view if it is in full duplex mode but is shared link if it is in half duplex mode RSTP fast convergence can only happen on point to point links and on edge ports This can expedite the convergence because this will have the port fast transited to forwarding state There are...

Page 52: ...a group membership query it identifies the groups associated with the query and determines to which groups it belongs The host then sets a timer with a value less than the Max Response Time field in the query for each group to which it belongs It Calculate the number of times of IGMPV1 report V2 Reports When a host receives a group membership query it identifies the groups associated with the quer...

Page 53: ...Max Response Time field in the query for each group to which it belongs It Calculate the number of times of IGMPV3 report V2 Leaves When a host leaves a group it sends a leave group membership message to multicast routers on the network it show the leaves number 4 5 5 Ping To set up target IP address for ping function and display ping status In Fig 4 22 the window shows the ping information Ping P...

Page 54: ...ault 1 NOTE All the functions should press Apply button to start up after you set up the parameters Ping Results Target IP address Show the active target IP address Status Show the result of the ping status Received replies Show the received replies number of times Request timeouts Show the timeout of request Average Response times In ms Show the average response time in milliseconds 4 6 Maintenan...

Page 55: ...fault settings and replace current configuration Except the IP address setting all settings will be restored to the factory default values when Factory Default function is performed If you want to restore all configurations including the IP address setting to the factory default please press the RESET mode button on the front panel Note for RESET mode button You must press the RESET mode button ov...

Page 56: ...a crashed switch can save much time and avoid mistakes 4 6 5 Logout The switch allows you to logout the system to prevent other users from the system without the permission If you do not logout and exit the browser the switch will automatically have you logout Besides this manually logout and implicit logout you can set up the parameter of Auto Logout Timer in system configuration function to expl...

Page 57: ...Manual 52 If no action and no key is stroke as well in any function screen more than the minutes you set up in Auto Logout Timer the switch will have you logout automatically Or press the Logout button in Logout function to exit the system manually ...

Page 58: ...are Number of Ports 24 MAC Address 8K Buffer Memory Embedded 512 K Bytes frame buffer Jumbo frames 9KB Transmission Method Store and Forward Features z Trunking Static trunk Link Aggregation Up to 12 groups Up to 24 ports per group z Spanning Tree Protocol STP Standard Spanning Tree 802 1d Rapid Spanning Tree RSTP 802 1w z VLAN Support up to 16 VLANs simultaneously out of 4096 VLAN IDs 802 1Q tag ...

Page 59: ...fServ z Management z Web GUI z SNMP SNMP version1 2c with support for traps z Reset Button Filtering Forwarding Rates 1000Mbps port 1 488 000pps 100Mbps port 148 800pps 10Mbps port 14 880pps Transmission Media 10BaseT Cat 3 4 5 6 UTP STP 100BaseTX Cat 5 6 UTP STP 1000BaseT Cat 5 6 UTP STP 1000BASE X SX LX SFP Led Indicators Per Port UTP Link Act Speed Per Port SFP Link Act Speed Per Unit Power Pow...

Page 60: ...rify that the cabling type used is correct Check the corresponding Link Act FDX Col and 100M for signs of faulty connection Check the status of the cable attachment If the problem persists try a different cable Try another port on the Switch Turn off power supply to the Switch After a while turn it on again to see if it resumes to its normal function If you find out where the problem is but cannot...

Page 61: ...Appendix B Troubleshooting AirLive SNMP GSH2004L User s Manual 56 Key in the user ID and the password to pass the authentication as following IP 192 168 2 1 Password airlive ...

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