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C

OMPLIANCES

viii

Purpose

This guide details the hardware features of this switch, including Its physical and
performance-related characteristics, and how to install the switch.

Audience

This guide is for system administrators with a working knowledge of network management.
You should be familiar with switching and networking concepts.

Related Publications

As part of the switch firmware, there is an online web-based help that describes all
management related features.

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Содержание GSW-1676

Страница 1: ...GSW 1676 GSW 2476 User Manual...

Страница 2: ......

Страница 3: ...e to radio communications Operation of this equipment 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 expen...

Страница 4: ...voltage supply system according to EN 61000 3 3 1995 Immunity Product family standard according to EN 55024 1998 Electrostatic Discharge according to EN 61000 4 2 1995 Contact Discharge 4 kV Air Disch...

Страница 5: ...the unit and easily accessible You can only remove power from the unit by disconnecting the power cord from the outlet This unit operates under SELV Safety Extra Low Voltage conditions according to I...

Страница 6: ...east 10 A The attachment plug must be an earth grounding type with NEMA 5 15P 15 A 125 V or NEMA 6 15P 15 A 250 V configuration Denmark The supply plug must comply with Section 107 2 D1 Standard DK2 1...

Страница 7: ...tation for this product uses biodegradable paper that originates from sustained and managed forests The inks used in the printing process are non toxic Warning This product does not contain any servic...

Страница 8: ...acteristics and how to install the switch Audience This guide is for system administrators with a working knowledge of network management You should be familiar with switching and networking concepts...

Страница 9: ...Management 1 6 2 Network Planning 2 1 Introduction to Switching 2 1 Application Examples 2 2 Collapsed Backbone 2 2 Central Wiring Closet 2 3 Remote Connections with Fiber Cable 2 4 Making VLAN Conne...

Страница 10: ...Cable Labeling and Connection Records 4 8 5 Initial Configuration 5 1 Changing a PC s IP Address 5 3 6 Configuring the Switch 6 1 Using the Web Interface 6 1 Navigating the Web Browser Interface 6 2 H...

Страница 11: ...onfiguring VLAN Interfaces 6 42 QoS Settings 6 45 RSTP 6 50 Configuring RSTP 6 51 Displaying RSTP Status 6 55 802 1X 6 57 Configuring 802 1X 6 59 802 1X Statistics 6 62 Security 6 66 IP Filter 6 66 Po...

Страница 12: ...gh Wiring B 3 Crossover Wiring B 4 1000BASE T Pin Assignments B 5 Cable Testing for Existing Category 5 Cable B 5 Adjusting Existing Category 5 Cabling to Run 1000BASE T B 6 Fiber Standards B 6 C Spec...

Страница 13: ...tic Cable Length 4 6 Table 4 3 Maximum 1000BASE LX Fiber Optic Cable Length 4 7 Table 4 4 Maximum 1000BASE ZX Fiber Optic Cable Length 4 7 Table 4 5 Maximum Fast Ethernet Cable Length 4 7 Table 4 6 Ma...

Страница 14: ...g Twisted Pair Connections 4 2 Figure 4 2 Wiring Closet Connections 4 3 Figure 4 3 Making Connections to SFP Transceivers 4 5 Figure 5 1 Login Page 5 2 Figure 5 2 LAN Settings Page 5 3 Figure 6 1 Home...

Страница 15: ...re 6 28 802 1p Configuration 6 48 Figure 6 29 DSCP Configuration 6 49 Figure 6 30 RSTP Configuration 6 54 Figure 6 31 RSTP Status Overview 6 57 Figure 6 32 802 1X Configuration 6 61 Figure 6 33 802 1X...

Страница 16: ...FIGURES xvi...

Страница 17: ...ts 13 16 on the GSW 1676 1 2 7 8 12 3 4 5 6 9 10 11 13 14 15 16 17 18 19 20 21 22 23 24 Link Act Link Act Power 1000 1000 1 2 3 4 13 14 15 16 5 6 7 8 17 18 19 20 9 10 11 12 21 22 23 24 21 22 23 24 o n...

Страница 18: ...ches use store and forward switching to ensure maximum data integrity With store and forward switching the entire packet must be received into a buffer and checked for validity before being forwarded...

Страница 19: ...hese ports does not support auto negotiation the communication mode of that port can be configured manually SFP Slots The Small Form Factor Pluggable SFP transceiver slots are shared with four of the...

Страница 20: ...Flashing indicates activity Off There is no valid link on the port 1000 Mbps On Green Port is operating at 1000 Mbps Off Port is operating at 10 or 100 Mbps Table 1 2 Power Status LED LED Condition St...

Страница 21: ...t in legacy LAN equipment Auto negotiation enables each RJ 45 port to automatically select the optimum communication mode half or full duplex if this feature is supported by the attached device otherw...

Страница 22: ...orts Supports 1000BASE SX 1000BASE LX and 1000BASE ZX SFP transceivers Performance Transparent bridging Provides store and forward switching Supports Jumbo frames up to 9 6 Kbytes Supports flow contro...

Страница 23: ...ice experiencing congestion server power user or hub can be attached directly to a switched port And by using full duplex mode the bandwidth of the dedicated segment can be doubled to maximize through...

Страница 24: ...x connections to workstations or servers When the time comes for further expansion just connect to another hub or switch using one of the Gigabit Ethernet ports built into the front panel or a Gigabit...

Страница 25: ...W 2476 are providing 1 Gbps full duplex connections for up to 24 local segments In addition the switch is also connecting remote servers over fiber optic cable at 1 Gbps Figure 2 2 Central Wiring Clos...

Страница 26: ...necting multiple segments with fiber cable Figure 2 3 Remote Connections with Fiber Cable Server Farm 10 100 Mbps Segments Remote Switch Remote Switch 1000BASE LX SMF 5 kilometers Headquarters 1000BAS...

Страница 27: ...ks attached to a single switch However tagged VLANs should be used for larger networks and all the VLANs assigned to the inter switch links Figure 2 4 Making VLAN Connections Note When connecting to a...

Страница 28: ...that require routing between dissimilar network types you can attach the switch directly to a multi protocol router 3 As a general rule the length of fiber optic cable for a single switched link shoul...

Страница 29: ...ace approximately five centimeters or two inches on all sides for proper air flow be accessible for installing cabling and maintaining the devices allow the status LEDs to be clearly visible Make sure...

Страница 30: ...Unshielded twisted pair UTP or shielded twisted pair STP cables with RJ 45 connectors Category 3 or better for 10BASE T Category 5 or better for 100BASE TX and Category 5 5e or 6 for 1000BASE T Protec...

Страница 31: ...equipment Package Contents GSW 1676 or GSW 2476 Four adhesive foot pads Bracket Mounting Kit containing two brackets and eight screws for attaching the brackets to the switch Power cord CD User Guide...

Страница 32: ...ture within a rack assembly may be higher than the ambient room temperature check that the rack environment temperature is within the specified operating temperature range see page C 2 Mechanical Load...

Страница 33: ...the screws provided in the Bracket Mounting Kit Figure 3 2 Attaching the Brackets 2 Mount the device in the rack using four rack mounting screws not provided Figure 3 3 Installing the Switch in a Rac...

Страница 34: ...e making sure there are at least two inches of space on all sides for proper air flow 3 If installing a single switch only go to Connecting to a Power Source at the end of this chapter 4 If installing...

Страница 35: ...es on page 4 6 2 Insert the transceiver with the optical connector facing outward and the slot connector facing down Note that SFP transceivers are keyed so they can only be installed in one orientati...

Страница 36: ...ocket 2 Plug the other end of the cable into a grounded 3 pin AC power source Note For international use you may need to change the AC line cord You must use a line cord set that has been approved for...

Страница 37: ...at both ends Use Category 5 5e or 6 cable for 1000BASE T connections Category 5 or better for 100BASE TX connections and Category 3 or better for 10BASE T connections Cabling Guidelines The RJ 45 port...

Страница 38: ...in the wiring closet attach the other end of the cable segment to a modular wall outlet that is connected to the wiring closet See Network Wiring Connections on page 4 3 Otherwise attach the other end...

Страница 39: ...segment to the back of the patch panel where the punch down block is located and the other end to a modular wall outlet 3 Label the cables to simplify future troubleshooting See Cable Labeling and Co...

Страница 40: ...erently eye safe in normal operation However you should never look directly at a transmit port when it is powered on Note When selecting a fiber SFP device considering safety please make sure that it...

Страница 41: ...Transceivers 4 As a connection is made check the Link LED on the switch corresponding to the port to be sure that the connection is valid The 1000BASE SX 1000BASE LX and 1000BASE ZX fiber optic ports...

Страница 42: ...egory 5e enhanced Category 5 or Category 6 cable should be used The Category 5e specification includes test parameters that are only recommendations for Category 5 Therefore the first step in preparin...

Страница 43: ...4 Maximum 1000BASE ZX Fiber Optic Cable Length Fiber Diameter Fiber Bandwidth Cable Length Range Connector 9 125 micron single mode fiber N A 2 m 70 km 7 ft 43 5 miles LC Table 4 5 Maximum Fast Ether...

Страница 44: ...el the opposing ends of each cable Using your building s floor plans draw a map of the location of all network connected equipment For each piece of equipment identify the devices to which it is conne...

Страница 45: ...the switch and verify that you have a link by checking the front panel LEDs 3 Check that your PC has an IP address on the same subnet as the switch The default IP address of the switch is 192 168 2 10...

Страница 46: ...number of ports there are no other differences between the GSW 2476 and GSW 1676 5 Enter the default password admin and click on the Login button 6 From the menu click on SYSTEM then click on LAN Sett...

Страница 47: ...l in all the fields on the Password Settings page before clicking on the APPLY button Changing a PC s IP Address To change the IP address of a Windows 2000 PC 1 Click Start Settings then Network and D...

Страница 48: ...change right click the network connection icon and then click Properties 3 In the list of components used by this connection on General tab select Internet Protocol TCP IP and then click the Propertie...

Страница 49: ...ccessing the switch from a Web browser be sure you have performed the following tasks 1 Configure the switch with a valid IP address subnet mask and default gateway Defaults IP address 192 168 2 10 Su...

Страница 50: ...r the administrator is admin Note If user input is not detected within five minutes the current session is terminated Home Page When your web browser connects with the switch s web agent the home page...

Страница 51: ...WEB BROWSER INTERFACE 6 3 Figure 6 1 Home Page Note The web interface examples in this guide are based on the GSW 2476 Other than the number of ports there are no other differences between the GSW 247...

Страница 52: ...setting for item Check for newer versions of stored pages should be Every visit to the page 2 When using Internet Explorer 5 0 you may have to manually refresh the screen after making configuration ch...

Страница 53: ...5 Name Shows the name of the switch 6 15 LAN Settings Sets the LAN IP address subnet mask and gateway IP address 6 15 Password Changes the password 6 17 Tools 6 18 Restore to Factory Defaults Forces t...

Страница 54: ...egation Control Protocol LACP on the switch 6 35 LACP Status Shows the LACP group status 6 36 VLANS 6 38 VLAN Membership Configure VLAN port groups 6 39 VLAN Port Config Configures VLAN behavior for i...

Страница 55: ...r 6 69 IGMP Snooping 6 71 Settings Sets up IGMP Snooping configuration 6 73 Status Shows IGMP Snooping status 6 73 SNMP 6 75 Settings Configures community strings and related trap functions 6 75 LOGOU...

Страница 56: ...ation must always be attached to a port on VLAN 1 IP Address Address of the VLAN to which the management station is attached Note that the management station must always be on VLAN 1 Valid IP addresse...

Страница 57: ...D is the same as the PVID When the PVID is set to None all outgoing frames are tagged Default 1 Trunk Information Trunk The trunk label T1 through T8 are used as trunk labels Type All trunks and ports...

Страница 58: ...CONFIGURING THE SWITCH 6 10 Figure 6 3 Status Overview...

Страница 59: ...being deliverable to a higher layer protocol Transmitted Multicast Packets The total number of packets that higher level protocols requested be transmitted and which were addressed to a multicast add...

Страница 60: ...settings Received Low Priority Packets The total number of received packets that are set as Low Priority in the QoS settings Transmitted Medium Priority Packets The total number of transmitted packets...

Страница 61: ...han 1518 octets excluding framing bits but including FCS octets and were otherwise well formed Jabbers The total number of frames received that were longer than 1518 octets excluding framing bits but...

Страница 62: ...CONFIGURING THE SWITCH 6 14 Web Click STATUS Statistics Figure 6 4 Port Statistics...

Страница 63: ...ress you need to change the switch s default settings IP address 192 168 2 10 and netmask 255 255 255 0 to values that are compatible with your network You may also need to a establish a default gatew...

Страница 64: ...ached to a port belonging to any VLAN as long as that VLAN has been assigned an IP address Note If you cannot remember the switch s IP address you can restore the original settings by following the pr...

Страница 65: ...fault is admin New Password Specifies the new user password Range 1 16 characters plain text case sensitive Confirm New Password Re enter in the new password for confirmation Note If you cannot rememb...

Страница 66: ...the switch Restore to Factory Defaults Forces the switch to restore the original factory settings To reset the switch select Reset to Factory Defaults from the drop down list and click APPLY The LAN I...

Страница 67: ...Click System Tools Reset to Factory Defaults Figure 6 9 Upgrade Firmware Upload Download Configuration The Upload Download Configuration feature allows you to save the switch s current configuration...

Страница 68: ...gement station or to find a saved configuration file Figure 6 10 Upload Download Configuration Restart Switch Web Click SYSTEM Tools Restart Switch To restart the switch click APPLY The reset will be...

Страница 69: ...configure static MAC addresses that are assigned to specific ports on the switch A static MAC address is bound to a specific port and will not be moved or aged out You can define up to 24 static MAC a...

Страница 70: ...tor up to five transmit counters and five receive counters as well as 1 transmit byte counter and receive byte counter Please also note the following restrictions Received Unicast Packets can be enabl...

Страница 71: ...STATIC MAC 6 23 Figure 6 13 Counter Configuration...

Страница 72: ...t power is used to maintain connection requirements IEEE 802 3 defines the Ethernet standard and subsequent power requirements based on cable connections operating at 100 meters Enabling power saving...

Страница 73: ...can be applied to individual ports or trunks When an interface is configured with this feature the traffic rate will be monitored by the hardware to verify conformity Non conforming traffic is dropped...

Страница 74: ...t or output rate limiting for the selected interface Default Disabled Bandwidth Limit Sets the rate limit for ingress or egress traffic When this limit is exceeded packets are dropped until the rate f...

Страница 75: ...ied threshold will then be dropped Field Attributes Type List the type of traffic which can be rate limited including ICMP learn frames broadcast multicast and flooded unicast frames Enable Storm Cont...

Страница 76: ...crossing the source port in a completely unobtrusive manner Field Attributes Ports to Mirror Select the ports that you want to mirror from this section of the page A port will be mirrored when the Mi...

Страница 77: ...be dropped on ingress to the switch which means they will not reach the mirror port or their intended destination port Input rate limiting in conjunction with port flow control should be used to ensur...

Страница 78: ...a distance to the fault Field Attributes Cable Diagnostics Cable diagnostics is performed on a per port basis Select the port number from the drop down list Cable Status Shows the cable length operat...

Страница 79: ...ed Duplex is set to Auto Speed TRUNKS Settings Flow Control is turned off TRUNKS Settings Rate Limiting is turned off TRUNKS Rate Limiting The trunk is a member of VLAN 1 VLANS VLAN Membership with a...

Страница 80: ...CONFIGURING THE SWITCH 6 32 Web Click TRUNKS Membership To assign a port to a trunk click the required trunk number then click APPLY Figure 6 19 Trunk Membership...

Страница 81: ...trol is enabled Ports Indicates which ports belong to the trunk Web Click TRUNKS Settings Figure 6 20 Trunk Configuration Trunk Rate Limit This page allows you to change the maximum input and output d...

Страница 82: ...tput Rate Limiting Input Output Limit Sets the threshold for trunk bandwidth measured in number of frames per second When this limit is exceeded packets are dropped until the rate falls back beneath t...

Страница 83: ...ed to the same target switch have LACP enabled the additional ports will be placed in standby mode and will only be enabled if one of the active links fails All ports on both ends of an LACP trunk mus...

Страница 84: ...ic value to maintain more precise control over the ports which will be connected to another device Click APPLY Figure 6 22 LACP Port Configuration Displaying LACP Status This page allows you display t...

Страница 85: ...in this LAG Seconds Since Last Change Time since the last LACP packet was received LACP Port Status Port A front panel port number Protocol Active Indicates whether or not LACP is active on this port...

Страница 86: ...ts In the default configuration any port is able to send traffic to any other port and a PC connected to any port will be able to access the management interface Broadcast traffic for example will be...

Страница 87: ...ervice provider s network Creating VLANs and Assigning Port Members To create a new VLAN enter an identifier in the Add VLAN Group table click the Add button and then configure the port or static trun...

Страница 88: ...CONFIGURING THE SWITCH 6 40 Web Click VLANS VLAN Membership Figure 6 24 802 1Q VLAN Configuration...

Страница 89: ...CONFIGURING VLAN GROUPS 6 41 Web After creating a new VLAN the following screen displays Assign the ports and trunks associated with the VLAN and click Apply Figure 6 25 VLAN Group Settings...

Страница 90: ...trip the tag from received frames or insert the tag in transmitted frames For QinQ operation a customer port should be set to VLAN unaware and a provider port trunk port should be set to VLAN aware In...

Страница 91: ...receive tagged packets Tagged packets will be dropped unless the port is a member of the VLAN identified by the VLAN tag in the packet PVID The port VLAN ID PVID is associated with untagged ingress pa...

Страница 92: ...CONFIGURING THE SWITCH 6 44 Web Click VLANS VLAN Port Configuration Fill in the required settings for each interface and click Apply Figure 6 26 VLAN Settings...

Страница 93: ...specifies a relative weight of each queue Strict priority requires all traffic in a higher priority queue to be processed before lower priority queues are serviced WRR uses a relative weighting for ea...

Страница 94: ...res bandwidth at the egress ports by using scheduling weights with default values of 1 2 4 8 for queues 0 through 7 respectively This is the default selection Note that WRR can only be selected if Jum...

Страница 95: ...When QoS Mode is set to DSCP the DSCP Configuration table is displayed allowing you to map each of the DSCP values to a hardware output queue low normal medium or high The default settings are shown b...

Страница 96: ...CONFIGURING THE SWITCH 6 48 Figure 6 27 QoS Settings When the QoS Mode is set to 802 1p the 802 p Configuration table is displayed as shown below Figure 6 28 802 1p Configuration...

Страница 97: ...QOS SETTINGS 6 49 When the QoS Mode is set to DSCP the DSCP Configuration table is displayed as shown below Figure 6 29 DSCP Configuration...

Страница 98: ...at LAN to the root device All ports connected to designated bridging devices are assigned as designated ports After determining the lowest cost spanning tree it enables all root ports and designated p...

Страница 99: ...teps of 4096 Hello Time Interval in seconds at which the root device transmits a configuration message BPDU frame Default 2 Minimum 1 Maximum The lower of 10 or Max Message Age 2 1 Max Age The maximum...

Страница 100: ...RSTP BPDUs on that port Compatible STP Mode If the switch receives an 802 1D BPDU i e STP BPDU after a port s migration delay timer expires the switch assumes it is connected to an 802 1D bridge and...

Страница 101: ...000 000 for the long path cost method By default the system automatically detects the speed and duplex mode used on each port and configures the path cost according to the values shown below Path cost...

Страница 102: ...CONFIGURING THE SWITCH 6 54 Web Click RSTP Settings Set any required system or port specific attributes for RSTP and click APPLY Figure 6 30 RSTP Configuration...

Страница 103: ...t before changing states i e discarding to learning to forwarding This delay is required because every device must receive information about topology changes before it starts to forward frames In addi...

Страница 104: ...the root bridge i e root port connecting a LAN through the bridge to the root bridge i e designated port or is an alternate or backup port that may provide connectivity if other bridges bridge ports o...

Страница 105: ...ized personnel to easily intrude and possibly gain access to sensitive network data The IEEE 802 1X dot1x standard defines a port based access control procedure that prevents unauthorized access to a...

Страница 106: ...ass authentication messages can be MD5 Message Digest 5 TLS Transport Layer Security or TTLS Tunneled Transport Layer Security TLS TTLS and PEAP will be supported in future releases The client respond...

Страница 107: ...acters Reauthentication Enabled Sets the client to be re authenticated after the interval specified by the Re authentication Period Re authentication can be used to detect if a new device is plugged i...

Страница 108: ...od The re authentication process verifies the connected client s user ID and password on the RADIUS server During re authentication the client remains connected the network and the process is handled...

Страница 109: ...802 1X 6 61 Figure 6 32 802 1X Configuration...

Страница 110: ...TING as a result of the Backend Authentication state machine indicating authentication timeout AuthEapStartsWhileAuthenticating the number of times that the state machine transitions from AUTHENTICATI...

Страница 111: ...he number of times that the state machine sends an initial Access Request packet to the Authentication server i e executes sendRespToServer on entry to the RESPONSE state Indicates that the Authentica...

Страница 112: ...ames that have been received by this Authenticator in which the frame type is not recognized LastEapolFrameVersion The protocol version number carried in the most recently received EAPOL frame EapolFr...

Страница 113: ...802 1X 6 65 Web Click 802 1X Statistics Figure 6 33 802 1X Statistics...

Страница 114: ...dress are allowed to access the network The IP Address and IP Mask fields will be filled with the assigned IP address and 255 255 255 255 individually by software IP Address Set up IP addresses to all...

Страница 115: ...y incoming traffic with source addresses already stored in the dynamic or static address table will be accepted as authorized to access the network through that port If a device with an unauthorized M...

Страница 116: ...other device that attempts to use the port will be prevented from accessing the switch Number of Learned MAC Addresses Displays the number of currently learned MAC addresses The string is displayed if...

Страница 117: ...a list of up to 8 IP addresses or IP address groups that are allowed management access to the switch through the web interface or SNMP The management interfaces are open to all IP addresses by defaul...

Страница 118: ...CONFIGURING THE SWITCH 6 70 Web Click Security Management Access Filter Enter a specific IP address or an address range and click APPLY Figure 6 36 Management Access Filter Configuration...

Страница 119: ...ferred between IP multicast routers switches and IP multicast host groups to identify the IP multicast group members It simply monitors the IGMP packets passing through it picks out the group registra...

Страница 120: ...ult Enabled IGMP Snooping VLAN Configuration VLAN ID The VLAN ID IGMP Snooping Enabled When enabled both globally as described in the preceding section and on a selected VLAN the switch will monitor n...

Страница 121: ...show IGMP Snooping statistics for each VLAN Field Attributes VLAN ID VLAN ID number Querier Shows whether Querying is enabled Queries Transmitted The number of transmitted Query packets A general que...

Страница 122: ...H 6 74 v2 Reports The number of received v2 Report packets v3 Reports The number of received v3 Report packets v3 Leave The number of v3 leave packets received Web Click IGMP Snoop Status Figure 6 38...

Страница 123: ...rights to the onboard agent are controlled by community strings To communicate with the switch the management station must first submit a valid community string for authentication Field Attributes SNM...

Страница 124: ...MP Trap Community Community string sent with the notification operation Web Click SNMP Settings Set the local SNMP agent status specify a trap manager set the community access stings and click APPLY F...

Страница 125: ...LED is Off Verify that the switch and attached device are powered on Be sure the cable is plugged into both the switch and corresponding device If the switch is installed in a rack check the connecti...

Страница 126: ...to be malfunctioning such as the power cord or network cabling test them in an alternate environment where you are sure that all the other components are functioning properly In Band Access You can ac...

Страница 127: ...g the power cord from the power socket 2 Unplug all cables from the ports 3 Use an Ethernet cable to connect port 1 to port 2 4 Plug the power cord back to the power socket 5 Wait at least 40 seconds...

Страница 128: ...TROUBLESHOOTING A 4...

Страница 129: ...n with white stripes Also an RJ 45 connector must be attached to both ends of the cable Caution Each wire pair must be attached to the RJ 45 connectors in a specific orientation Caution DO NOT plug a...

Страница 130: ...k connections to PCs or servers or to other switches or hubs In straight through cable pins 1 2 3 and 6 at one end of the cable are connected straight through to pins 1 2 3 and 6 at the other end of t...

Страница 131: ...port on the switch you can use either straight through or crossover cable to connect to any device type You must connect all four wire pairs as shown in the following diagram to support Gigabit Ether...

Страница 132: ...ed for any RJ 45 port on the switch you can use either straight through or crossover cable to connect to any device type You must connect all four wire pairs as shown in the following diagram to suppo...

Страница 133: ...talk FEXT This cable testing information is specified in the ANSI TIA EIA TSB 67 standard Additionally cables must also pass test parameters for Return Loss and Equal Level Far End Crosstalk ELFEXT Th...

Страница 134: ...he number of connectors used in the link 3 Reconnect some of the connectors in the link Fiber Standards The current TIA Telecommunications Industry Association 568 A specification on optical fiber cab...

Страница 135: ...h 4 SFP transceiver slots Network Interface Ports 1 16 24 RJ 45 connector auto MDI X 10BASE T RJ 45 100 ohm UTP cable Category 3 or better 100BASE TX RJ 45 100 ohm UTP cable Category 5 or better 1000B...

Страница 136: ...F Storage 40 to 70 C 40 to 158 F Humidity Operating 10 to 90 non condensing AC Input 100 to 240 V 50 60 Hz 0 8 A Power Supply Internal auto ranging transformer 100 to 240 VAC 50 to 60 Hz Power Consump...

Страница 137: ...Management Web manager Software Loading HTTP in band Standards IEEE 802 3 2005 Ethernet Fast Ethernet Gigabit Ethernet IEEE 802 1Q Virtual LAN IEEE 802 1X Port Based Network Access Control 2001 ISO I...

Страница 138: ...SPECIFICATIONS C 4...

Страница 139: ...ber cable 1000BASE SX IEEE 802 3z specification for Gigabit Ethernet over two strands of 50 125 or 62 5 125 micron core fiber cable 1000BASE T IEEE 802 3ab specification for Gigabit Ethernet over 100...

Страница 140: ...Detect is the communication method employed by Ethernet Fast Ethernet or Gigabit Ethernet End Station A workstation server or other device that does not forward traffic Ethernet A network communicati...

Страница 141: ...yer specifications IEEE 802 3ab Defines CSMA CD access method and physical layer specifications for 1000BASE T Gigabit Ethernet Now incorporated in IEEE 802 3 2002 IEEE 802 3u Defines CSMA CD access m...

Страница 142: ...Information Base MIB An acronym for Management Information Base It is a set of database objects that contains information about the device Media Access Control MAC A portion of the networking protocol...

Страница 143: ...ion Transmission Control Protocol Internet Protocol TCP IP Protocol suite that includes TCP as the primary transport protocol and IP as the network layer protocol UTP Unshielded twisted pair cable Vir...

Страница 144: ...GLOSSARY Glossary 6...

Страница 145: ...ctions 2 3 2 5 B brackets attaching 3 5 buffer size C 1 C cable Ethernet cable compatibility 3 2 labeling and connection records 4 8 lengths 4 7 cleaning fiber terminators 4 4 compliances EMC C 3 conn...

Страница 146: ...rameters 6 37 partner parameters 6 37 protocol parameters 6 35 6 36 laser safety 4 4 LC port connections 4 4 LED indicators Power 1 4 problems A 1 Link Aggregation Control Protocol See LACP location r...

Страница 147: ...gs 6 52 standards compliance C 3 IEEE C 3 statistics port 6 11 status LEDs 1 3 surge suppressor using 3 1 switch architecture 1 2 switching introduction to 2 1 T temperature within a rack 3 4 troubles...

Страница 148: ...INDEX Index 4...

Страница 149: ......

Страница 150: ...GSW 1676 GSW 2476 E052010 CS R02 149100011100H...

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