ZyXEL Communications GS-1524, User Manual

Page 1: ...w zyxel com GS 1524 GS 1548 Web Managed GbE Switch Copyright 2009 ZyXEL Communications Corporation Firmware Version 1 12 Edition 2 5 2009 Default Login Details IP Address http 192 168 1 1 User Name admin Password 1234 ...

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Page 3: ...you use the web configurator to configure the Switch Supporting Disc Refer to the included CD for support documents ZyXEL Web Site Please refer to www zyxel com for additional support documentation and product certifications User Guide Feedback Help us help you Send all User Guide related comments questions or suggestions for improvement to the following address or use e mail instead Thank you The...

Page 4: ...ntact_us php for contact information Please have the following information ready when you contact an office Product model and serial number Warranty Information Date that you received your device Brief description of the problem and the steps you took to solve it ...

Page 5: ...key stroke is denoted by square brackets and uppercase text for example ENTER means the enter or return key on your keyboard Enter means for you to type one or more characters and then press the ENTER key Select or choose means for you to use one of the predefined choices A right angle bracket within a screen name denotes a mouse click For example Maintenance Log Log Setting means you first click ...

Page 6: ... s Guide 6 Icons Used in Figures Figures in this User s Guide may use the following generic icons The Switch icon is not an exact representation of your device The Switch Computer Notebook computer Server DSLAM Firewall Telephone Switch Router ...

Page 7: ...ll step on them or stumble over them Always disconnect all cables from this device before servicing or disassembling Use ONLY an appropriate power adaptor or cord for your device Connect the power adaptor or cord to the right supply voltage for example 110V AC in North America or 230V AC in Europe Do NOT allow anything to rest on the power adaptor or cord and do NOT place the product where anyone ...

Page 8: ...Safety Warnings GS 1524 GS 1548 User s Guide 8 ...

Page 9: ...tings 33 The Web Configurator 35 System 43 Port Settings 49 System and Port Statistics 53 VLAN 57 Trunking 63 Mirroring 65 QoS 67 Port Rate Limit and Storm Control 77 Layer 2 L2 Management 83 Cable Diagnostics 87 Auto Denial of Service DoS 89 Auto VoIP 93 Management and Troubleshooting 95 Event Logging 97 SNMP 105 RMON Lite 121 Dynamic ARP 137 Troubleshooting 141 Product Specifications 145 Appendi...

Page 10: ...Contents Overview GS 1524 GS 1548 User s Guide 10 ...

Page 11: ...e 20 1 1 3 High Performance Switching Example 21 1 1 4 IEEE 802 1Q VLAN Application Examples 21 Chapter 2 Hardware Installation and Connection 23 2 1 Freestanding Installation 23 2 2 Mounting the Switch on a Rack 24 2 2 1 Rack mounted Installation Requirements 24 2 2 2 Attaching the Mounting Brackets to the Switch 24 2 2 3 Mounting the Switch on a Rack 25 Chapter 3 Hardware Overview 27 3 1 Front P...

Page 12: ...b Configurator 41 4 8 Help 41 Chapter 5 System 43 5 1 System Screen 43 5 1 1 Configure IP Address 44 5 1 2 Layer 2 L2 Table Aging 45 5 1 3 Backup Settings 45 5 1 4 Restore Settings 46 5 2 System Change Password 47 5 3 Firmware Upgrade 47 5 3 1 System Restart Reset 48 Chapter 6 Port Settings 49 6 1 Port Status 49 6 2 Port Configuration 50 Chapter 7 System and Port Statistics 53 7 1 Overview 53 7 2 ...

Page 13: ... 2 QoS Enhancement 68 11 3 Configuring QoS 69 11 3 1 Change Number of Queues 70 11 4 Advanced QoS Settings 70 11 4 1 Port Based QoS 71 11 4 2 DSCP Based QoS 72 11 4 3 Differentiated Services Code Point DSCP Overview 72 11 4 4 DSCP Based QoS Screen 73 11 4 5 ToS Based QoS 74 11 4 6 IP Address Based QoS 75 Chapter 12 Port Rate Limit and Storm Control 77 12 1 Port Rate Screen 77 12 1 1 Rate Limit Scr...

Page 14: ...pter 17 Event Logging 97 17 1 Event Logging Overview 97 17 2 Logging Screen 98 17 3 Logging Add Server 99 17 4 Viewing RAM and Flash Logs 99 17 5 Searching RAM and Flash Logs 102 17 5 1 Search Results 103 Chapter 18 SNMP 105 18 1 About SNMP 105 18 1 1 Supported MIBs 106 18 1 2 SNMP Traps 107 18 1 3 SNMP v3 and Authentication 107 18 1 4 SNMP EngineID 107 18 2 SNMP Group 108 18 2 1 SNMP Group Create...

Page 15: ...History Statistics Control 128 19 5 RMON Alarm Overview 129 19 5 1 RMON Alarm Create New Alarm 130 19 6 RMON Event Overview 132 19 6 1 RMON Event Create New Event 133 19 7 RMON Event Log Overview 134 19 7 1 RMON Event Log Event 135 Chapter 20 Dynamic ARP 137 20 1 ARP Table Overview 137 20 1 1 ARP Table Entries 137 20 1 2 How Dynamic ARP Works 137 20 2 Enabling Dynamic ARP 138 20 3 Viewing ARP Tabl...

Page 16: ...Table of Contents GS 1524 GS 1548 User s Guide 16 Appendix A IP Addresses and Subnetting 153 Appendix B Legal Information 163 Index 167 ...

Page 17: ...17 PART I Introduction and Hardware Overview Getting to Know Your Switch 19 Hardware Installation and Connection 23 Hardware Overview 27 ...

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Page 19: ... one time The GS 1524 has 20 1000BASE T RJ 45 ports and four dual personality ports The GS 1548 has 44 1000BASE T RJ 45 ports and four dual personality ports With its built in web configurator managing and configuring the Switch is easy See Chapter 22 on page 145 for a full list of software features available on the Switch 1 1 1 Backbone Application The Switch is an ideal solution for small networ...

Page 20: ...on the Switch connects different company departments RD and Sales to the corporate backbone It can alleviate bandwidth contention and eliminate server and network bottlenecks All users that need high bandwidth can connect to high speed department servers via the Switch You can provide a super fast uplink connection by using a Gigabit Ethernet mini GBIC port on the Switch Moreover the Switch eases ...

Page 21: ...cture can be retained as all ports can freely communicate with each other Figure 3 High Performance Switched Workgroup Application 1 1 4 IEEE 802 1Q VLAN Application Examples A VLAN Virtual Local Area Network allows a physical network to be partitioned into multiple logical networks Stations on a logical network belong to one group A station can belong to more than one group With VLAN a station ca...

Page 22: ...ed resources such as a server can be used by all ports in the same VLAN as the server In the following figure only ports that need access to the server need to be part of VLAN 1 Ports on the Switch can belong to other VLAN groups too Figure 4 Shared Server Using VLAN Example ...

Page 23: ...he weight of the Switch and the connected cables Make sure there is a power outlet nearby 3 Make sure there is enough clearance around the Switch to allow air circulation and the attachment of cables and the power cord 4 Remove the adhesive backing from the rubber feet 5 Attach the rubber feet to each corner on the bottom of the Switch These rubber feet help protect the Switch from shock or vibrat...

Page 24: ...quirements Two mounting brackets Eight M3 flat head screws and a 2 Philips screwdriver Four M5 flat head screws and a 2 Philips screwdriver Note Failure to use the proper screws may damage the unit 2 2 1 1 Precautions Make sure the rack will safely support the combined weight of all the equipment it contains Make sure the position of the Switch does not make the rack unstable or top heavy Take all...

Page 25: ...the Switch on a rack Proceed to the next section 2 2 3 Mounting the Switch on a Rack 1 Position a mounting bracket that is already attached to the Switch on one side of the rack lining up the two screw holes on the bracket with the screw holes on the side of the rack Figure 7 Mounting the Switch on a Rack 2 Using a 2 Philips screwdriver install the M5 flat head screws through the mounting bracket ...

Page 26: ...Chapter 2 Hardware Installation and Connection GS 1524 GS 1548 User s Guide 26 ...

Page 27: ...nt panel and rear panel of the Switch and shows you how to make the hardware connections 3 1 Front Panel The figures below show the front panel of the Switch Figure 8 GS 1524 Front Panel Figure 9 GS 1548 Front Panel LEDs RJ 45 Gigabit Ethernet Mini GBIC LEDs RJ 45 Gigabit Ethernet Mini GBIC ...

Page 28: ...ossover Ethernet cable 3 1 1 1 Default Ethernet Settings The factory default negotiation settings for the Ethernet ports on the Switch are Speed Auto Duplex Auto Flow control Off 3 1 2 Mini GBIC Slots There are four mini GBIC Gigabit Interface Converter slots for mini GBIC transceivers A transceiver is a single unit that houses a transmitter and a receiver The Switch does not come with transceiver...

Page 29: ...fiber optic module s connectors 3 1 2 1 Transceiver Installation Use the following steps to install a mini GBIC transceiver SFP module 1 Insert the transceiver into the slot with the exposed section of PCB board facing down Figure 10 Transceiver Installation Example 2 Press the transceiver firmly until it clicks into place 3 The Switch automatically detects the installed transceiver Check the LEDs...

Page 30: ...fault configuration file The RESET button is on the front panel of the GS 1548 or on the rear panel of the GS 1524 Note When you use the RESET button all of your configuration settings will be lost Use the default IP address 192 168 1 1 and user name admin and password 1234 to log back into the Switch It may take up to 2 minutes for the Switch to restart when you reload the default configuration f...

Page 31: ...rnet network is up Blinking The port is transmitting receiving data Off The link to an Ethernet network is down FDX Amber On The port is negotiating in full duplex mode Off The port is negotiating in half duplex mode and no collisions are occurring Gigabit Ethernet Ports GS 1548 ONLY 1 48 Green On The link to a 10 1000 Mbps Ethernet network is up Amber On The link to a 100 Mbps Ethernet network is...

Page 32: ...e correct power source as shown on the panel To connect the power to the Switch insert the female end of the power cord into the power receptacle on the rear panel Connect the other end of the supplied power cord to a 100 240V AC 50 60 Hz power outlet capable of supplying at least 0 9A G 1524 or 1 5A GS 1548 ...

Page 33: ...eb Configurator 35 System 43 Port Settings 49 System and Port Statistics 53 VLAN 57 Trunking 63 Mirroring 65 QoS 67 Port Rate Limit and Storm Control 77 Layer 2 L2 Management 83 Cable Diagnostics 87 Auto Denial of Service DoS 89 Auto VoIP 93 ...

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Page 35: ...ater versions The recommended screen resolution is 1024 by 768 pixels In order to use the web configurator you need to allow Web browser pop up windows from your device Web pop up blocking is enabled by default in Windows XP SP Service Pack 2 JavaScript enabled by default Java permissions enabled by default Note This User s Guide shows screens from the GS 1524 unless otherwise specified 4 2 System...

Page 36: ...sword is 1234 Figure 16 Web Configurator Login 4 Click Login to view the first web configurator screen 4 3 The Status Screen The System screen is the first screen that displays when you access the web configurator The following figure shows the navigating components of the web configurator screen Figure 17 Web Configurator Home Screen System A B C D ...

Page 37: ...tor updates automatically every 5 seconds Figure 18 LED Panel The following table describes the labels in this screen 4 3 2 The Navigation Panel Navigate to individual feature configuration screens from the navigation panel Table 3 LED Panel LABEL DESCRIPTION 1G This LED is green if the corresponding port has a 1 Gbps connection 100 This LED is amber if the corresponding port has a 100 Mbps connec...

Page 38: ...opy traffic from one port or ports to another port in order that you can examine the traffic from the first port without interference QoS Use these screens to configure queuing with associated queue weights for the Switch Rate Use these screens to specify bandwidth limits and storm control limits for the Switch Port Rate Use this screen to cap the maximum bandwidth allowed from specified source s ...

Page 39: ...screen to configure SNMP engine ID Group Use this screen to configure groups with different access rights for SNMP management User Use this screen to create users and assign them to pre defined SNMP groups Community Use this screen to define security parameters for SNMP v1 and SNMP v2c Trap Station Use this screen to configure settings that define when notifications are sent to an external managem...

Page 40: ... MAC to IP address binding 4 6 Resetting the Switch If you lock yourself and others from the Switch or forget the administrator password you will need to reset the Switch back to the factory defaults Use the RESET button to reset the Switch back to factory defaults Press and hold the RESET button for one second The Switch will reload its factory defaults The Switch is now reinitialized with a defa...

Page 41: ...g in with your password again after you log out This is recommended after you finish a management session for security reasons Figure 20 Web Configurator Logout Link 4 8 Help The web configurator s online help has descriptions of individual screens and some supplementary information Click the Help link from a web configurator screen to view an online help description of that screen ...

Page 42: ...Chapter 4 The Web Configurator GS 1524 GS 1548 User s Guide 42 ...

Page 43: ...ame firmware version and so on Figure 21 System The following table describes the labels in this screen Table 5 System LABEL DESCRIPTION Device Name This read only field displays the name of your Switch Firmware Version This field displays the version number of the Switch s current firmware Click Upgrade to go to the firmware upgrade screen See Section 5 3 on page 47 Build Date This field displays...

Page 44: ...lt gateway L2 Table Aging This field displays whether the L2 Table Aging is enabled or disabled Click Enabled Disabled to change the L2 Table Aging settings Backup settings Click this link to create and save a backup configuration file See Section 5 1 3 on page 45 Restore settings Click this link to upload an existing configuration file to the Switch See Section 5 1 4 on page 46 Table 5 System con...

Page 45: ...5 that the Switch remembers MAC address entries Select 0 to disable L2 table aging Click Apply to save your configuration changes 5 1 3 Backup Settings Backing up your Switch configurations allows you to create various snap shots of your device from which you may restore at a later date Back up your current Switch configuration to a computer using the Backup Settings link Follow the steps below to...

Page 46: ...lease select a saved configuration file text box or click Browse to display the Choose File screen from which you can locate it After you have specified the file click Restore Make sure you are using the proper configuration when you are restoring your configuration The file name extension should be cfg If you attempt to restore a wrong configuration file the following error message appears Figure...

Page 47: ...ure you have downloaded and unzipped the correct model firmware and version to your computer before uploading to the device Be sure to upload the correct model firmware as uploading the wrong model firmware may damage your device Table 7 Change Password LABEL DESCRIPTION Old Password Type the existing system password 1234 is the default password when shipped New Password Enter your new system pass...

Page 48: ...x or click Browse to locate it After you have specified the file click Upgrade After the firmware upgrade process is complete see the System Status screen to verify your current firmware version number 5 3 1 System Restart Reset Click System Restart Reset to perform a system restart keep current configuration or a system reset restore the Switch s default configuration settings Follow the instruct...

Page 49: ...s the labels in this screen Table 8 Port Status LABEL DESCRIPTION Refresh Click this to update the PORT Status screen Port This identifies the Ethernet port Click a port number to display the Port Configuration screen refer to Section 6 2 on page 50 Link Status This field displays the link status of the port Up if the port is enabled and active or Down if the port is disabled or not connected to a...

Page 50: ...ion LABEL DESCRIPTION Port This is the port index number Admin Select Enable to activate the port or Disable to deactivate the port Auto Negotiate Select Enable and the port will negotiate the speed duplex mode and flow control settings with the peer port If the peer port does not support auto negotiation or turns off this feature the Switch determines the connection speed by detecting the signal ...

Page 51: ...y stop sending signals when the receiving port memory buffers fill Back Pressure flow control is typically used in half duplex mode to send a collision signal to the sending port mimicking a state of packet collision causing the sending port to temporarily stop sending signals and resend later Select Enable to turn this feature on or select Disable to turn it off Default Priority This priority val...

Page 52: ...Chapter 6 Port Settings GS 1524 GS 1548 User s Guide 52 ...

Page 53: ...tics screens 7 1 Overview The statistics screen of the web configurator displays a port statistical summary with links to each port showing statistical details 7 2 Statistics Summary Click Statistics in the navigation panel to view the screen as shown Use this screen to view the traffic counters for the Switch Figure 31 Statistics ...

Page 54: ...out an individual port on the Switch Figure 32 Status Port Details Table 10 Statistics LABEL DESCRIPTION Clear Counters Click this to reset all counters to zero Refresh Click this to retrieve the current information from the Switch and update this screen Port This identifies the Ethernet port Click a port number to display the Port Details screen refer to Figure 32 on page 54 Tx This field shows t...

Page 55: ...f non unicast packets received Discards This field shows the number discarded dropped packets Errors This field shows the number of undersize oversize fragmented or FCS error packets received UnknownProtos This field shows the number of packets received with unknown protocols Summary The following fields display a summary of types of errors and size of packets transmitted received Drop Events This...

Page 56: ...f packets including bad packets received that were between 65 and 127 octets in length 128 255 BytePkts This field shows the number of packets including bad packets received that were between 128 and 255 octets in length 256 511 BytePkts This field shows the number of packets including bad packets received that were between 256 and 511 octets in length 512 1023 BytePkts This field shows the number...

Page 57: ...ays set to zero for Ethernet switches If a frame received at an Ethernet port has a CFI set to 1 then that frame should not be forwarded as it is to an untagged port The remaining twelve bits define the VLAN ID giving a possible maximum number of 4 096 VLANs Note that user priority and VLAN ID are independent of each other A frame with VID VLAN Identifier of null 0 is called a priority frame meani...

Page 58: ...f the VID except the ingress port itself thus confining the broadcast to a specific domain 8 2 Static VLAN Use a IEEE 802 1Q VLAN to decide whether an incoming frame on a port should be sent to a VLAN group as normal depending on its VLAN tag sent to a group whether it has a VLAN tag or not You can also tag all outgoing frames that were previously untagged from a port with the specified VID 8 2 1 ...

Page 59: ...ble shows you the existing VLANs and their configurations VLAN ID Click on the VLAN ID to go to the VLAN edit screen Member Ports All the ports participating in the VLAN are listed here The ports show up in two different colors Orange When the packet leaves this member port the VLAN tag is added Turquoise When the packet leaves this member port the VLAN tag is removed Previous Page Click this butt...

Page 60: ...es that this port is a member of the VLAN When the packet leaves the member port the VLAN tag is added U This indicates that this port is a member of the VLAN When the packet leaves the member port the VLAN tag is removed 1 52 These buttons allow you to specify whether the individual ports are members of this VLAN Click the buttons below the numbers to change the state of the ports The possible st...

Page 61: ...ates that this port is a member of the VLAN When the packet leaves the member port the VLAN tag is added U This indicates that this port is a member of the VLAN When the packet leaves the member port the VLAN tag is removed 1 52 These buttons allow you to specify whether the individual ports are members of this VLAN Click the buttons below the numbers to change the state of the port The possible s...

Page 62: ...Chapter 8 VLAN GS 1524 GS 1548 User s Guide 62 ...

Page 63: ...gh speed but more costly single port link However the more ports you aggregate then the fewer available ports you have A trunk group is one logical link containing multiple ports 9 1 1 Distribution Criteria The Switch uses a traffic distribution algorithm to balance traffic between trunk members The Switch allows you to specify what criterion it should use to calculate the most efficient distribut...

Page 64: ...hm between trunk member ports Your choices are SA Source MAC Address DA Destination MAC Address SA DA Modify Trunk Group Member Configure the following settings to create and modify trunk groups Trunk id Select the trunk you want to modify or select a trunk id which is not yet configured to create a new trunk group Port Select the port you want to add or delete Add Click this to add the port to th...

Page 65: ...ion panel to display the Mirror Setting screen Use this screen to select a monitor port and specify the traffic flow to be copied to the monitor port Figure 37 Mirror Setting The following table describes the labels in this screen Table 16 Mirror Setting LABEL DESCRIPTION Mode Select Enabled to turn on port mirroring or select Disabled to turn it off Ingress Mirror Select the ports for which you w...

Page 66: ...or To monitor port is the port you copy the traffic to in order to examine it in more detail without interfering with the traffic flow on the original port s Select the monitor port Apply Click Apply to save your changes Table 16 Mirror Setting continued LABEL DESCRIPTION ...

Page 67: ...ount of bandwidth irrespective of the incoming traffic on that port This queue then moves to the back of the list The next queue is given an equal amount of bandwidth and then moves to the end of the list and so on depending on the number of queues being used This works in a looping fashion until a queue is empty Weighted Round Robin WRR scheduling uses the same algorithm as round robin scheduling...

Page 68: ...iteria you select The Switch allows you to choose one of the following methods for assigning priority to incoming packets on the Switch Port Based QoS Assign priority to packets based on the incoming port on the Switch See Section 11 4 1 on page 71 DSCP Based QoS Assign priority to packets based on their Differentiated Services Code Points DSCPs See Section 11 4 2 on page 72 ToS Based QoS Assign p...

Page 69: ...ld displays the number of queues configurable on the Switch Click Change to edit the number of queues on the Switch Schedulin g Method Select Strict Priority or Weighted Round Robin Strict Priority scheduling singles out the highest priority queue and ensures all queued traffic in this queue is transmitted before servicing the lower priority queues Strict Priority scheduling services the remaining...

Page 70: ...range from 0 lowest priority to 7 highest priority Click the options below the priority values to send packets of a specific priority to a particular queue You can also set this priority based on criteria you configure in the Advanced QoS screens See the sections later in this chapter for more information Queue 0 Queue 3 This field indicates which Queue 0 to 3 you are configuring Queue 0 has the l...

Page 71: ...itch The Switch does not modify the IEEE 802 1p value for the egress frames 11 4 1 Port Based QoS You can configure the Switch to assign a IEEE 802 1p priority to packets based on the ingress incoming port of the packet Select Port Based QoS in the QoS Enhancement Setting screen to view the following screen Figure 40 Port Based QoS ...

Page 72: ...re the traffic is going DiffServ defines a new DS Differentiated Services field to replace the Type of Service ToS field in the IP header The DS field contains a 2 bit unused field and a 6 bit DSCP field which can define up to 64 service levels Table 18 Port Based QoS LABEL DESCRIPTION Mode Select Port Based QoS to specify priority rules based on the port of incoming packets Change Priority Config...

Page 73: ... on the incoming DSCP value according to the DiffServ to IEEE 802 1p mapping table 11 4 4 DSCP Based QoS Screen You can configure the Switch to assign a IEEE 802 1p priority to packets coming into the Switch with DSCPs assigned to them Select DSCP Based QoS in the QoS Enhancement Setting screen to view the following screen Figure 41 DSCP Based QoS ...

Page 74: ... the Switch Change Priority Configure the following DSCP Select the DSCP priority for which you want to change a priority mapping Priority Select the IEEE 802 1p priority you want to assign to the packets with the DSCP priority you specified in the DSCP field Click Change to view your changed settings Note The changes are not applied until you click Apply Change Settings DSCP Priority This is a su...

Page 75: ...itch Change Priority Configure the following TOS Select the ToS priority for which you want to change a priority mapping Priority Select the IEEE 802 1p priority you want to assign to the packets with the ToS priority you specified in the TOS field Click Change to view your changed settings Note The changes are not applied until you click Apply Change Settings TOS Priority This is a summary table ...

Page 76: ...edit existing IP address based QoS entries Select the index of an existing IP address based QoS entry This is the same value as listed in the ID column of this screen Select the Priority you want to assign to this entry Click Change to view your changed settings Note The changes are not applied until you click Apply Change Settings ID IP MASK Priority Delete This is a summary table of your IP addr...

Page 77: ... port and set up broadcast storm control settings using the Port Rate and Storm Control screens 12 1 Port Rate Screen Rate control means defining a maximum allowable bandwidth for incoming and or out going traffic flows on a port Click Rate Port Rate in the navigation panel to bring up the screen as shown next Figure 44 Port Rate Limit ...

Page 78: ...the maximum bandwidth allowed in kilobits per second Kbps for the incoming traffic flow on a port Egress Rate Displays the maximum bandwidth allowed in kilobits per second Kbps for the out going traffic flow on a port Table 23 Rate Limit Configuration LABEL DESCRIPTION Ingress Rate Specify the maximum bandwidth allowed in kilobits per second Kbps for the incoming traffic flow on a port Egress Traf...

Page 79: ...ber of tokens in the bucket represents the maximum allowed bandwidth to go out on the port The size of the bucket is specified by the burst size see below Every time traffic goes out on the port tokens representing used up bandwidth are removed from the bucket thus limiting the amount of traffic allowed to go out on the port Tokens are also added to the bucket every Token Update Interval thus rese...

Page 80: ...Chapter 12 Port Rate Limit and Storm Control GS 1524 GS 1548 User s Guide 80 Click Rate Storm Control in the navigation panel to display the screen as shown next Figure 46 Broadcast Storm Control ...

Page 81: ... limit for the amount of broadcast packets received per second Broadcast and multicast to specify a limit for the amount of broadcast and multicast packets received per second Broadcast and unknown unicast to specify a limit for the amount of broadcast and DLF packets received per second Broadcast multicast and unknown unicast to specify a limit for the amount of broadcast multicast and DLF Destin...

Page 82: ...Chapter 12 Port Rate Limit and Storm Control GS 1524 GS 1548 User s Guide 82 ...

Page 83: ...AC address rules you are setting static MAC addresses for a port This may reduce the need for broadcasting Click L2 Address Management in the navigation panel to display the configuration screen as shown Figure 47 L2 Management The following table describes the labels in this screen Table 25 L2 Management LABEL DESCRIPTION Address Lookup Enter the MAC address and the corresponding Vlan ID in the M...

Page 84: ... MAC address entry Port This field displays the port number of a manually entered MAC address entry Delete Click DELETE to remove this manually entered MAC address entry from the MAC address table Table 25 L2 Management continued LABEL DESCRIPTION Table 26 Add a Static MAC Entry LABEL DESCRIPTION MAC Address Enter the MAC address in valid MAC address format that is six hexadecimal character pairs ...

Page 85: ...d Address Table Click this to update all the fields in the L2 Address table Item This is the index number of the MAC address entry Source MAC This field displays the MAC address VID This field displays the VID of a manually entered MAC address entry Port This field displays the port number of a MAC address entry or it displays HOST if its the entry for the Switch itself Type This field displays wh...

Page 86: ...Chapter 13 Layer 2 L2 Management GS 1524 GS 1548 User s Guide 86 ...

Page 87: ...rm basic cable diagnostics Click Cable Diagnostic in the navigation panel to view the screen as shown Figure 50 Cable Diagnostic The following table describes the labels in this screen Table 28 Cable Diagnostic LABEL DESCRIPTION Port to diagnose Select the port you want to test Apply Click this to perform cable testing on the specified port Diagnostic for Port 01 This field displays the number of ...

Page 88: ...hort between pair there is a short between two twisted pairs of cable Pair A Pair D This field displays the whether the twisted pair has a good connection Ok or it displays the type of fault the Switch has detected Open Short or Short between pair It also displays the length of total twisted pair length or the distance to the detected fault depending whether the cable tested Ok or a fault was foun...

Page 89: ... the same as the destination host IP address The system attempts to reply to itself resulting in system lockup Blat Attacks These attacks result from sending a specially crafted packet to a machine where the source host port is the same as the destination host port The system attempts to reply to itself resulting in system lockup SYNFIN scans SYNchronization SYN ACKnowledgment ACK and FINish FIN p...

Page 90: ...ts packets pings to cause network congestion or outages Ping Flooding This attack floods the target network with ICMP packets SYN SYN ACK Flooding This attack floods the target network with SYN or SYN ACK packets Table 29 DoS Attack Summary ATTACK DESCRIPTION Table 30 Global Auto DoS Attack Prevention LABEL DESCRIPTION Advanced Click this link to configure advance Auto DoS settings Denial of Servi...

Page 91: ...en Port Select the port you want to configure or select Apply settings to all ports to configure all the ports on the Switch Denial of Service Prevention Select the types of attacks you want to prevent or choose Select All to prevent all types of attacks and scans supported by the Switch See Section 15 1 1 on page 89 for more information on specific types of attacks Parameter For Ping and SYN SYN ...

Page 92: ...Chapter 15 Auto Denial of Service DoS GS 1524 GS 1548 User s Guide 92 ...

Page 93: ...provide better transmission resulting in higher sound quality for the end users The AutoVoIP feature explicitly matches VoIP packets in Ethernet switches and provides them with the highest class of service The AutoVoIP feature provides the capability to assign the highest priority for the following VoIP packets SIP Session Initiation Protocol is an internationally recognized standard for implement...

Page 94: ...P in the navigation panel to view the following screen Figure 53 Auto VoIP Settings The following table describes the labels in this screen Table 32 Auto VoIP Settings LABEL DESCRIPTION Profiles Select Disable if you don t want to give higher priority to VoIP traffic or select IP Phone to give the highest priority to SIP MGCP and SCCP packets passing through the Switch Apply Click Apply to save yo...

Page 95: ...95 PART III Management and Troubleshooting Event Logging 97 SNMP 105 RMON Lite 121 Dynamic ARP 137 Troubleshooting 141 Product Specifications 145 ...

Page 96: ...96 ...

Page 97: ...y The logs are cleared when the Switch is rebooted Flash This log is saved into the switch s non volatile memory You can view the logs even after the switch is rebooted Due to the space limitations on the switch the oldest log entries are overwritten as new events are recorded Server You can configure syslog servers to store system events from the Switch The Switch uses UDP protocol to send log me...

Page 98: ... should record Select Error to record system failures such as events which will cause the Switch to malfunction and events such as invalid user input in the web configurator Warning to record non critical errors on the Switch The Switch will continue to function when warnings are recorded Info to record regular system events such as configuration changes or logins Debug to record events which can ...

Page 99: ...s RAM or Logs Flash screen Table 34 Logging Add Server LABEL DESCRIPTION Name Enter a short descriptive name for identifying this server You can use 1 12 printable ASCII characters Spaces are allowed IP Address Enter the IP address in dotted decimal notation of the syslog server you want to add Port Specify the UDP port for sending log messages to this server Typically port 514 is used with syslog...

Page 100: ...tes the index number of the log This number doesn t change even if some logs are deleted from the Switch due to memory limits The index number increments by one for each recorded event The largest number represents the most recent log event Level This field displays the severity level of the log event The possible severity levels are Error to record system failures such as events which will cause ...

Page 101: ...to Denial of Service features you set up and the category SYSTEM records events which deal with the overall operation of the Switch Time This field specifies the time when the Switch recorded the log event The Switch resets its internal clock when it is restarted Message This field displays an explanation for the log entry Goto page Click Next Previous or click on a page number to browse through t...

Page 102: ...er s Guide 102 17 5 Searching RAM and Flash Logs Use these screens to search RAM and Flash logs based on level and category Click the Search link in the Logs RAM or Logs Flash screen to view the screen as shown Figure 57 Searching RAM Flash Logs ...

Page 103: ...nfo to search regular system events such as configuration changes or logins Debug to search events which can be helpful for engineering debugging of the Switch s function This field is not recommended to track as it creates many messages not helpful to typical users Category Select All to search all categories or specify the individual categories you want to search The categories are based on soft...

Page 104: ...s the severity level of the log event The possible severity levels are Error Warning Info and Debug Category This field displays what category the log entry fits The categories are based on software and hardware features of the Switch For example the category AUTODOS records events which deal with the Auto Denial of Service features you set up and the category SYSTEM records events which deal with...

Page 105: ...hrough the network via SNMP version one SNMPv1 SNMP version 2c or SNMP version 3 The next figure illustrates an SNMP management operation SNMP is only available if TCP IP is configured Figure 59 SNMP Management Model An SNMP managed network consists of two main components agents and a manager An agent is a management software module that resides in a managed network device the Switch An agent tran...

Page 106: ... 1 1 Supported MIBs MIBs let administrators collect statistics and monitor status and performance The Switch supports the following MIBs RFC 1213 SNMP MIB II MIB II System MIB II Interface RFC 1398 MIB Ether like RFC 2674 SNMPv2 SNMPv2c RFC 2819 RMON Group 1 Statistics Group 2 History Group 3 Alarm Group 9 Event Table 38 SNMP Commands COMMAND DESCRIPTION Get Allows the manager to retrieve an objec...

Page 107: ...agents before conducting SNMP management sessions Note SNMP v3 is enabled when you create SNMP groups and users Once SNMP v3 is enabled you must configure unique SNMP communities for SNMP v1 and or SNMP v2c access 18 1 4 SNMP EngineID The SNMP Engine ID is a unique identifier that identifies agents to the managers The default SNMP Engine ID is the MAC address of the agent You can change this Use t...

Page 108: ...mum length is 27 octets each octet is made up of a pair of hexadecimal characters Using Default Select this radio button to use the default Engine ID based on the MAC address of the Switch for SNMP Apply Click this to save your changes to the Switch Table 41 SNMP Group LABEL DESCRIPTION Group ID Select the SNMP group you want to edit Create New Group Click this to configure a new SNMP group Group ...

Page 109: ...reate LABEL DESCRIPTION Group Name Specify the name for this SNMP group You can use 1 33 printable characters Spaces are allowed SNMP Version Specify the SNMP version this group uses to manage the Switch Authenticatio n This field is only editable if you select SNMPv3 in the SNMP Version field Select Enabled to force SNMP v3 groups to authenticate with the Switch or select Disabled to deactivate a...

Page 110: ...odifying Click on Remove This Group to delete this group configuration from the Switch Click on Display All Group to view the main SNMP Group screen Group Name Edit the name for this SNMP group SNMP Version Specify the SNMP version this group uses to manage the Switch Authenticatio n This field is only editable if you select SNMPv3 in the SNMP Version field Select Enabled to force SNMP v3 groups t...

Page 111: ... used for identification only Click on the individual user number to edit the user settings User Name This field displays the name of the SNMP user Group Name This field displays the name of the SNMP group the user belongs to SNMP Version This field indicates which SNMP version this user uses to manage the Switch Auth Type This field indicates whether authentication is required for this user Authe...

Page 112: ...re allowed Group Name Specify the SNMP group this user belongs to SNMP Version Specify the SNMP version this group uses to manage the Switch Auth Type Authentication can only be configured for SNMP v3 Select None to allow this user to manage the Switch without authentication or select MD5 and configure the Key field to force this user to authenticate with the Switch Key Enter the MD5 key this user...

Page 113: ...to view the main SNMP User screen User Name Edit the name for this SNMP user Group Name Select the SNMP group this user should belong to SNMP Version Specify the SNMP version this group uses to manage the Switch Auth Type Authentication can only be configured for SNMP v3 Select None to allow this user to manage the Switch without authentication or select MD5 and configure the New Key field to forc...

Page 114: ... SNMP community you want to edit Create New Community Click this to configure a new SNMP community Community ID This field indicates the community number It is used for identification only Click on the individual community number to edit the community settings Community String This field indicates the SNMP community string An SNMP community string is a text string that acts as a password It is use...

Page 115: ...e messages that are sent between the management station the SNMP manager and the device the SNMP agent The community string is included in every packet that is transmitted between the SNMP manager and the SNMP agent Type the community string for this community You can use 1 33 any printable character Spaces are allowed Remote Station IP Specify the IP address of the remote SNMP management station ...

Page 116: ... DESCRIPTION Community ID This field indicates which community you are modifying Click on Remove This Community to delete this user configuration from the Switch Click on Display All Community to view the main SNMP Community screen Community String An SNMP community string is a text string that acts as a password It is used to authenticate messages that are sent between the management station the ...

Page 117: ...p Station SNMP traps are used to send out SNMP notifications of urgent or normal events in the system to external management stations Use the SNMP Trap Station screen Table 50 SNMP Notification LABEL DESCRIPTION Enable SNMP Notification Select this to enable the sending of SNMP traps to a remote SNMP management station Enable Authenticatio n Notification Select this to enable logging of failed aut...

Page 118: ...on number It is used for identification only Click on the individual trap station number to edit the trap station settings Remote IP Address This field displays the IP address of the remote SNMP management station Community String An SNMP community string is a text string that acts as a password It is used to authenticate messages that are sent between the management station the SNMP manager and t...

Page 119: ... number or select a Trap Station ID from the Trap Station ID drop down list box in the SNMP Trap Station screen to modify the settings of an existing trap station Figure 73 SNMP Trap Station Modify Table 52 SNMP Trap Station Create LABEL DESCRIPTION Remote IP Address Enter the IP address of the remote trap station in dotted decimal notation Community String Specify the community string used with t...

Page 120: ... are modifying Click on Remove This Trap Station to delete this trap station configuration from the Switch Click on Display All Trap Station to view the main SNMP Trap Station screen Remote IP Address Enter the IP address of the remote trap station in dotted decimal notation Community String Specify the community string used with this remote trap station Apply Click this to save your settings to t...

Page 121: ...d to as monitors or probes are usually stand alone devices and devote significant internal resources for the purposes of managing a network There are a total of nine RMON MIB groups defined in RFC 2819 The Switch supports four of the RMON MIB groups Group 1 Statistics Group 2 History Group 3 Alarm Group 9 Event The Switch s implementation is therefore referred to as RMON Lite The following section...

Page 122: ...N RMON MIB Table Use this drop down list box to select the MIB table you want to view Click Apply to refresh the screen to the selected MIB table view Refresh Click this to update all the fields in the RMON Lite Statistics Overview screen Data Source This field displays the ports on the Switch Click on the port number to configure the settings for that port Owner This field displays the entry crea...

Page 123: ... to refresh the screen to the selected MIB table view Set Enable Click this to activate statistics gathering for this port Clear Click this to reset all statistics values to 0 Refresh Click this to update all the fields in the RMON Statistics Port screen RMON MIB Object This column displays all types of statistics gathered for this port It displays the results in the Value column StatsDropEvents T...

Page 124: ...r than 1518 octets and contained an invalid FCS including alignment errors StatsCollisions This field displays the total number of collisions occurred StatsPkts64Octets This field displays the number of packets including bad packets received that were 64 octets in length StatsPkts65to127Octets This field displays the number of packets including bad packets received that were between 65 and 127 oct...

Page 125: ...story configuration settings Figure 76 RMON History Control Overview The following table describes the labels in this screen Table 56 RMON History Control Overview LABEL DESCRIPTION RMON MIB Table Use this drop down list box to select the MIB table you want to view Click Apply to refresh the screen to the selected MIB table view Refresh Click this to update all the fields in the RMON History Contr...

Page 126: ...d on the port It displays Disabled if historical polling is not activated on the port Table 56 RMON History Control Overview continued LABEL DESCRIPTION Table 57 RMON History Control Modify LABEL DESCRIPTION RMON MIB Table Use this drop down list box to select the MIB table you want to view Click Apply to refresh the screen to the selected MIB table view Index This field displays the entry index n...

Page 127: ...the RMON History Control Overview screen Table 57 RMON History Control Modify continued LABEL DESCRIPTION Table 58 RMON History Statistics Overview LABEL DESCRIPTION RMON MIB Table Use this drop down list box to select the MIB table you want to view Click Apply to refresh the screen to the selected MIB table view Refresh Click this to update all the fields in the RMON History Statistics Overview s...

Page 128: ...to update all the fields in the RMON History Statistics Control Index screen Sample Index This field displays the index number of the polling sample collected on the port Drop Events This field displays the total number of packets that were dropped in this polling sample Octets This field displays the total number of octets received in this polling sample Packets This field displays the total numb...

Page 129: ... that were greater than 1518 octets in length Fragments This field displays the number of frames dropped in this polling sample because they were less than 64 octets long and contained an invalid FCS including non integral and integral lengths Jabbers This field displays the number of frames dropped in this polling sample because they were longer than 1518 octets and contained an invalid FCS inclu...

Page 130: ...me interval in seconds between data samplings Variable This field displays the name of the MIB field whose data is to be sampled Sample Type This field displays the method of obtaining the sample value absoluteValue or deltaValue Value This field displays the value of the statistic during the last sampling period This value is for comparing against the RisingThreshold and FallingThreshold values S...

Page 131: ...d to test if this alarm is triggered the choices are Drop Events Octets Packets and so on Sample Type Select the method of obtaining the sample value Choices are Absolute and Value Startup Alarm Select the startup alarm type Rising Threshold Falling Threshold Rising Or Falling Threshold Rising Threshold Specify a rising threshold between 0 and 2147483647 When a value is greater or equal to this th...

Page 132: ...view Click Apply to refresh the screen to the selected MIB table view Refresh Click this to update all the fields in the RMON Event Overview screen Create new Event Click this to configure new events on the Switch Index This field displays an event index number Click this number to edit the event entry Description This field displays a description of the event Type This field displays the event ty...

Page 133: ...Event The following table describes the labels in this screen Table 63 RMON Event Configuration Screens LABEL DESCRIPTION RMON MIB Table Use this drop down list box to select the MIB table you want to view Click Apply to refresh the screen to the selected MIB table view Index This field displays the index number of the event entry Description Enter a description of the event You can use 1 127 prin...

Page 134: ...e 1 31 printable ASCII characters Spaces are not allowed Owner Enter a descriptive name of the application that creates this entry You can use 1 64 printable ASCII characters Spaces are not allowed Apply Click this to save the settings to the Switch Event Overview Click this to go to the RMON Event Overview screen Table 63 RMON Event Configuration Screens continued LABEL DESCRIPTION Table 64 RMON ...

Page 135: ... hours M for minutes and S for seconds Owner This field displays the entry creator It displays monitor if the entry was created by the Switch itself Table 64 RMON Event Log Overview continued LABEL DESCRIPTION Table 65 RMON Event Log Event LABEL DESCRIPTION RMON MIB Table Use this drop down list box to select the MIB table you want to view Click Apply to refresh the screen to the selected MIB tabl...

Page 136: ...Chapter 19 RMON Lite GS 1524 GS 1548 User s Guide 136 ...

Page 137: ...ion between each MAC address and its corresponding IP address 20 1 1 ARP Table Entries The ARP table is populated with MAC and corresponding IP address mappings in two different ways DHCP Snooping The Switch listens to traffic from a DHCP server on a trusted port and learns IP to MAC address bindings by parsing DHCP ACK packets Static Entries The Switch administrator can enter static IP to MAC add...

Page 138: ...st activate dynamic ARP first if you want to add static ARP table entries Aging Time Specify how long in hours the Switch remembers the learned ARP table entries Specify 0 to have the Switch remember the ARP table entries for an unlimited time period Trusted ports Packets arriving on trusted ports bypass all Dynamic ARP validation checks and those arriving on untrusted ports undergo the validation...

Page 139: ...Table 66 ARP Table continued LABEL DESCRIPTION Table 67 ARP Table LABEL DESCRIPTION Static MAC IP binding ADD This field is only available when you enable dynamic ARP in the Dynamic ARP Settings screen Click ADD to add a static entry to the ARP table See Section 20 4 on page 140 Item This is the ARP table entry number MAC Address This is the MAC address of the device connected to the Switch with t...

Page 140: ...ARP Table LABEL DESCRIPTION MAC Address XX XX XX XX XX XX Enter the MAC address in 6 pair hexadecimal format of the network device you want to be allowed to communicate via the Switch An example entry of a MAC address is 0a b1 c2 d3 e4 f5 IP Address Enter the corresponding IP address in dotted decimal notation ex 192 168 1 5 of the network device you want to be allowed to communicate via the Switc...

Page 141: ...uded with the Switch 2 Make sure the power adaptor or cord is connected to the Switch and plugged in to an appropriate power source Make sure the power source is turned on 3 Disconnect and re connect the power adaptor or cord to the Switch 4 If the problem continues contact the vendor One of the LEDs does not behave as expected 1 Make sure you understand the normal behavior of the LED See Section ...

Page 142: ... 31 I cannot see or access the Login screen in the web configurator 1 Make sure you are using the correct IP address The default IP address is 192 168 1 1 If you changed the IP address use the new IP address If you changed the IP address and have forgotten it see the troubleshooting suggestions for I forgot the IP address for the Switch 2 Check the hardware connections and make sure the LEDs are b...

Page 143: ...user name is admin and the default password is 1234 These fields are case sensitive so make sure Caps Lock is not on 2 You may have exceeded the maximum number of concurrent Telnet sessions Close other Telnet session s or try connecting again later Check that you have enabled logins for HTTP or telnet If you have configured a secured client IP address your computer s IP address must match it Refer...

Page 144: ...Chapter 21 Troubleshooting GS 1524 GS 1548 User s Guide 144 ...

Page 145: ...Ethernet port LNK ACT FDX Dimensions Standard 19 rack mountable GS 1524 438 x 215 x 44 45 mm GS 1548 441 x 311 x 45 mm Device Weight GS 1524 3 Kg GS 1548 4 063 Kg Temperature Operating 0º C 50º C 32º F 122º F Storage 40º C 70º C 40º F 158º F Humidity 10 95 non condensing Power Supply GS 1524 AC 100 240V 50 60Hz 0 9A max internal universal power supply GS 1548 AC 100 240V 50 60Hz 1 5A max internal ...

Page 146: ...Back pressure flow control for half duplex Flow control for full duplex IEEE 802 3x Layer 2 Features Bridging 8K MAC addresses Static MAC address forwarding by destination 8 static entries Broadcast storm control Static MAC address forwarding Switching Switching fabric GS 1524 48Gbps non blocking GS 1548 96Gbps non blocking Max Frame size 1522 bytes Forwarding frame IEEE 802 3 IEEE 802 1Q Ethernet...

Page 147: ...ing 16 Static Entries Table 70 General Product Specifications continued Table 71 Management Specifications System Control Alarm Status surveillance LED indication for power status Performance monitoring Line speed Four RMON groups history statistics alarms and events Throughput monitoring Port mirroring and aggregation Firmware upgrade and download through HTTP FLASH memory Reset to default button...

Page 148: ...Port Mirroring Port mirroring allows you to copy traffic going from one or all ports to another or all ports in order that you can examine the traffic from the mirror port the port you copy the traffic to without interference Link Aggregation Link aggregation trunking is the grouping of physical ports into one logical higher capacity link You may want to trunk ports if for example it is cheaper to...

Page 149: ...atistics and create alarms Cable Diagnostics Use this feature to inspect the Ethernet cables connected to the Switch for shorts open faults or shorts between pairs Logging The Switch allows you to specify what information should be logged and where it should be stored It supports internal logging as well as external logging via a syslog server Table 72 Firmware Features FEATURE DESCRIPTION ...

Page 150: ...Chapter 22 Product Specifications GS 1524 GS 1548 User s Guide 150 ...

Page 151: ...151 PART IV Appendices and Index IP Addresses and Subnetting 151 Legal Information 163 Index 167 ...

Page 152: ...152 ...

Page 153: ...mber and the other part is the host ID In the same way that houses on a street share a common street name the hosts on a network share a common network number Similarly as each house has its own house number each host on the network has its own unique identifying number the host ID Routers use the network number to send packets to the correct network while the host ID determines to which host on t...

Page 154: ...which bits are part of the host ID using a logical AND operation The term subnet is short for sub network A subnet mask has 32 bits If a bit in the subnet mask is a 1 then the corresponding bit in the IP address is part of the network number If a bit in the subnet mask is 0 then the corresponding bit in the IP address is part of the host ID The following example shows a subnet mask identifying the...

Page 155: ...umber determines the maximum number of possible hosts you can have on your network The larger the number of network number bits the smaller the number of remaining host ID bits An IP address with host IDs of all zeros is the IP address of the network 192 168 1 0 with a 24 bit subnet mask for example An IP address with host IDs of all ones is the broadcast address for that network 192 168 1 255 wit...

Page 156: ...ows some possible subnet masks using both notations Subnetting You can use subnetting to divide one network into multiple sub networks In the following example a network administrator creates two sub networks to isolate a group of servers from the rest of the company network for security reasons Table 75 Maximum Host Numbers SUBNET MASK HOST ID SIZE MAXIMUM NUMBER OF HOSTS 8 bits 255 0 0 0 24 bits...

Page 157: ...t ID allowing a maximum of 28 2 or 254 possible hosts The following figure shows the company network before subnetting Figure 90 Subnetting Example Before Subnetting You can borrow one of the host ID bits to divide the network 192 168 1 0 into two separate sub networks The subnet mask is now 25 bits 255 255 255 128 or 25 The borrowed host ID bit can have a value of either 0 or 1 allowing two subne...

Page 158: ...55 255 128 is subnet A itself and 192 168 1 127 with mask 255 255 255 128 is its broadcast address Therefore the lowest IP address that can be assigned to an actual host for subnet A is 192 168 1 1 and the highest is 192 168 1 126 Similarly the host ID range for subnet B is 192 168 1 129 to 192 168 1 254 Example Four Subnets The previous example illustrated using a 25 bit subnet mask to divide a 2...

Page 159: ...s Binary 11000000 10101000 00000001 01000000 Subnet Mask Binary 11111111 11111111 11111111 11000000 Subnet Address 192 168 1 64 Lowest Host ID 192 168 1 65 Broadcast Address 192 168 1 127 Highest Host ID 192 168 1 126 Table 79 Subnet 3 IP SUBNET MASK NETWORK NUMBER LAST OCTET BIT VALUE IP Address 192 168 1 128 IP Address Binary 11000000 10101000 00000001 10000000 Subnet Mask Binary 11111111 111111...

Page 160: ...ight Subnets SUBNET SUBNET ADDRESS FIRST ADDRESS LAST ADDRESS BROADCAST ADDRESS 1 0 1 30 31 2 32 33 62 63 3 64 65 94 95 4 96 97 126 127 5 128 129 158 159 6 160 161 190 191 7 192 193 222 223 8 224 225 254 255 Table 82 24 bit Network Number Subnet Planning NO BORROWED HOST BITS SUBNET MASK NO SUBNETS NO HOSTS PER SUBNET 1 255 255 255 128 25 2 126 2 255 255 255 192 26 4 62 3 255 255 255 224 27 8 30 4...

Page 161: ...nable Network Address Translation NAT on the Switch Once you have decided on the network number pick an IP address for your Switch that is easy to remember for instance 192 168 1 1 but make sure that no other device on your network is using that IP address The subnet mask specifies the network number portion of an IP address Your Switch will compute the subnet mask automatically based on the IP ad...

Page 162: ...2 168 0 0 192 168 255 255 You can obtain your IP address from the IANA from an ISP or it can be assigned from a private network If you belong to a small organization and your Internet access is through an ISP the ISP can provide you with the Internet addresses for your local networks On the other hand if you are part of a much larger organization you should consult your network administrator for t...

Page 163: ...arising out of the application or use of any products or software described herein Neither does it convey any license under its patent rights nor the patent rights of others ZyXEL further reserves the right to make changes in any products described herein without notice This publication is subject to change without notice Trademarks ZyNOS ZyXEL Network Operating System is a registered trademark of...

Page 164: ...evice in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense CE Mark Warning This is a class A product In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures Taiwanese BSMI Bureau of Standards Metrology and Inspection A Warning ...

Page 165: ...d with damaged by an act of God or subjected to abnormal working conditions Note Repair or replacement as provided under this warranty is the exclusive remedy of the purchaser This warranty is in lieu of all other warranties express or implied including any implied warranty of merchantability or fitness for a particular use or purpose ZyXEL shall in no event be held liable for indirect or conseque...

Page 166: ...Appendix B Legal Information GS 1524 GS 1548 User s Guide 166 ...

Page 167: ...prevention 89 auto negotiating ports 28 B back up configuration file 45 bandwidth control 146 147 bridging 146 147 C cable diagnostics 87 types of faults 87 categories of events 101 certifications 163 notices 164 viewing 165 CFI Canonical Format Indicator 57 changing the password 39 Class of Service CoS 72 configuration file backup 45 restore 46 configuration saving 39 copyright 163 D DHCP Snoopin...

Page 168: ...er 2 features 146 147 LEDs 30 link aggregation 63 lockout 40 login 35 password 39 logs 97 adding external syslog 99 categories 101 configuration 98 external 97 overview 97 RAM 97 searching 102 types of events 98 viewing 99 M MAC address 137 MAC address learning 83 MAC address table 45 85 maintanence configuration backup 45 firmware 47 restoring configuration 46 Management Information Base MIB 106 ...

Page 169: ...logs 97 registration product 165 related documentation 3 Remote Network Monitoring Management Information Base RMON MIB 121 reset 48 reset button 27 40 resetting 40 restart 48 restoring configuration 40 46 RMON alarm group 129 event group 132 history group 124 statistics group 122 RMON Lite 121 Round Robin Scheduling 67 rubber feet 23 S safety certifications 145 safety warnings 7 save configuratio...

Page 170: ...7 system status 43 T tagged VLAN 57 trademarks 163 transceiver installation 29 removal 29 traps SNMP 107 trunk group 63 trunking 21 63 146 147 configuration 64 distribution criterion 63 Type of Service ToS 72 V ventilation holes 24 VID 57 number of possible VIDs 57 priority frame 57 VID VLAN Identifier 57 viewing MAC entries 85 VLAN 57 146 147 create 59 editing 60 ID 57 status 58 tagged 57 tagged ...