ProConnect® II Series Layer 2 Management 4-Port Gigabit Ethernet Switch Use this guide to install: PC22604 User Guide
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ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch Table of Contents Introduction 1 Getting to Know the Switch LEDs The RJ-45 Ports The Gigabit Expansion Ports The Console Port The Back Panel 2 2 3 3 3 4 Installing the Switch Pre-Installation Considerations Desk Top or Shelf Mounting the Switch Rack-Mounting the Switch Powering on and Resetting the Switch Power On Self Test Uplinking the Switch Installing the Gigabit Expansion Modules 5 5 6 6 7 7 8 8 Switch Management Overview L
ProConnect II® Series Advanced Management Activities Switching Database Configuration VLAN & PVID Perspective Default VLAN Obtaining a VLAN Perspective Creating a New VLAN Adding New Switch Ports Deleting a VLAN ID Viewing VLAN Activities Searching for MAC Addresses Obtaining Additional Information Scrolling Through Domains Exiting the VLAN Screens Viewing VLAN Settings Adding Ports Deleting Ports Configuring PVID IP Multicast Group Perspective MAC Address Perspective Port Perspective Per Port VLAN Activit
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch Introduction SNMP and RMON Management Overview SNMP Agent and MIB-2 (RFC 1213) RMON MIB (RFC 1757) and Bridge MIB (RFC 1493) RMON Groups Supported Bridge Groups Supported 106 106 106 107 107 108 Appendix About Fast Ethernet About Gigabit Ethernet Fiber Optic Cabling Twisted-Pair Cabling Crimping Your Own Network Cables Glossary Specifications Environmental Customer Support Linksys Warranty Information 109 109 110 110 111 112 113 11
ProConnect II® Series Getting to Know the Switch Layer 2 Management 4-Port Gigabit Ethernet Switch The RJ-45 Ports The Switch is equipped with four auto-sensing RJ-45 ports. These RJ-45 ports support network speeds of either 10Mbps, 100Mbps, or 1000Mbps and can operate in half and full-duplex modes. Auto-sensing technology enables each port to automatically detect the speed of the device connected to it and adjust its speed and duplex accordingly. LEDs Act Green.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch Installing the Switch Pre-Installation Considerations The Back Panel Fast Ethernet Considerations Power Where the AC power cord connects. FAN Radiates the heat inside the system. Buzzer Warns you if the system overheats. To disable the warning system, use a pen point or similar object to push in the button and the buzzer will not sound if the system overheats.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch Desk Top or Shelf Mounting the Switch Powering On and Resetting the Switch 1. Place the Switch on a desktop or shelf near an AC power source and following the guidelines of the preceding paragraph, Positioning the Switch. To power on the Switch, simply connect the power cord to the back of the Switch, then plug the power cord into an electrical outlet. The Switch will boot up within approximately 30 seconds. 2.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch Uplinking the Switch Switch Management All four ports on the Switch can act as uplink ports, allowing you to uplink to other switches or hubs using a standard Ethernet connection. Overview To uplink the switch, connect one end of a Category 5e (or better) network cable into a port, then connect the other end of the cable into the desired network device’s uplink port. MDI/MDIX will automatically detect the speed and cable type.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch Remote Console Management Configuring the Switch You can manage the Switch remotely by having a remote host establish a Telnet connection to the switch via an Ethernet or modem link. Overview To use this management method: • The host must run a SLIP protocol if a modem is used • The Switch must have an IP address. The default IP address is 192.168.1.254. • Remote Telnet Login must be enabled on the Switch.
ProConnect II® Series Basic Management Activities After you log on to the Switch, the Switch Management screen will appear. Layer 2 Management 4-Port Gigabit Ethernet Switch • General allows you to change the system name, contact, location, administration and guest passwords, statistics collection, reboot-on-error, remote Telnet login, and remote HTTP login. • LAN Port allows you to configure line speed and flow control, Admin Control, and view the physical address of the Switch.
ProConnect II® Series 2. Enter a system name (16 characters max.). If you make a mistake, use the Backspace key to delete the error. 3. Press Enter to return to the General screen. Layer 2 Management 4-Port Gigabit Ethernet Switch Changing the Administration Password 1. Use the Down Arrow key to highlight admin Password and press the Enter key. The Enter Old Password screen will appear. Changing the Contact To change the contact: 1. From the General screen, highlight Contact and press the Enter key.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch 5. Press Enter. A screen will prompt you to re-enter the new password. 6. Re-enter the new password you typed in step 4 and press Enter. The Password Changed message will appear, confirming that the new password is in effect. 2. Enter a new guest password. If you make a mistake, use the Backspace key to delete the error.
ProConnect II® Series Reboot-on-Error 1. From the General screen, highlight Reboot-On-Error and press the Enter key. The following screen will appear. Layer 2 Management 4-Port Gigabit Ethernet Switch 2. Highlight one of the following choices: Disabled (prevents remote Telnet logins to the Switch) Enabled (allows remote Telnet logins to the Switch. This is the default setting) 3. Press Enter to return to the General screen. Remote Http Login To enable or disable the function of Remote Http Login: 2.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch LAN Port Configuration Select LAN Port from the Basic Management screen. The LAN Port Configurations screen will appear, with Speed & Flow Control highlighted. 3.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch Changing the Flow Control 1. With the Speed & Flow Cntl Options screen displayed, press the Down Arrow key to highlight Flow Control and press Enter. The Flow Cntl Options screen will appear. Returning to the Basic Management Screen After completing the general management activities, press the Esc key to exit the General screen and return to the Basic Management screen.
ProConnect II® Series Changing the Console Baud Rate 1. From the Console Port Configurations screen, highlight Baud Rate and press the Enter key. A screen similar to the following will show the current console baud rate. 2. Highlight the baud rate you want to select for the console. Auto allows the Switch to autosense the baud rate between 9600 bps and 115,200 bps. If you choose Auto, it will choose the rest of your configuration selections.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch 3. Press the Enter key. If you highlight Default Setup String, you will return to the Console Port Configurations screen and the default modem string will appear in the Modem Setup String field. If you highlight Custom Setup String, enter the custom string in the Enter Modem Setup String screen and press Enter again.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch Advanced Management Activities • Other Protocols lets you view and change GVRP and IGMP settings. Advanced management activities consist of the Layer 2 switching database, IP networking, Bridging, Static Filtering, Spanning Tree, SNMP, Stacking, Other Protocols, Port Trunking, Port Mirroring, QOS Setup, and File Transfer. • Port Trunking allows you to assign a range of ports to trunking groups.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch VLAN & PVID PERSPECTIVE Creating a New VLAN This section describes the default VLAN and how to obtain a VLAN perspective. 1. From the VLAN Perspective screen in, hold down the Shift key and press the “+” key. The New VLAN Settings screen will appear. Default VLAN The IEEE 802.1Q standard defines VLAN ID #1 as the default VLAN. The default VLAN includes all the ports as the factory default.
ProConnect II® Series c) Enter a name for the new VLAN (up to 31 alphanumeric characters). Layer 2 Management 4-Port Gigabit Ethernet Switch If you highlight Tagged Ports, the screen window reads Select Tagged Ports, as in the following screen. d) Press Enter. The VLAN name appears next to VLAN Name in the New VLAN Settings screen. 6. Press the Esc key. A screen similar to the following will appear. 3.
ProConnect II® Series 7. Press Esc to return to the VLAN Perspective screen. You may then select another option from the VLAN Perspective screen or press Esc to return to the L2 Switching DataBase screen. The VLAN IDs and names you added will appear in the VLAN Perspective screen. In the following screen, the Zuma and lana VLAN IDs have been added.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch Searching for MAC Addresses Exiting the VLAN Screens To search for MAC addresses: When you finish performing VLAN activities, press the Esc key until you return to the desired screen. 1. In the VLAN MAC Address screen, press S. The Enter MAC Addr To Search screen will appear. 2. Enter a MAC address in the Enter MAC Addr To Search screen and press the Enter key.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch Adding Ports To select tagged ports: To add ports to a VLAN: • Highlight Tagged Ports and press Enter. The Select Tagged Ports screen will appear, along with a list of the tagged ports. 1. After following the previous four steps of Viewing VLAN Settings, hold down the Shift key and press “+”. ThePort Options screen will appear. 2. Select either Untagged Ports or Tagged Ports.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch Configuring PVID IP MULTICAST GROUP PERSPECTIVE The PVID is the VLAN that the port is associated with. By default, all ports are associated with the default VLAN of 1. If you want to configure the PVID, highlight the PVID setting from the VLAN & PVID Perspective screen and press the Enter key. The following screen will appear: The IP multicast group perspective provides information associated with an IP multicast group.
ProConnect II® Series 4. Use the Up Arrow and Down Arrow keys to scroll through the VLAN/IP Multicast Group Membership screen. Layer 2 Management 4-Port Gigabit Ethernet Switch PORT PERSPECTIVE 5. When you finish, press Esc until you return to the desired screen. The port perspective lets you view VLAN activities, Port Statistics, and MAC Limit.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch Per Port Statistics If you select Per Port Statistics from the Port Perspective screen, a screen similar to the following Per Port VLAN Activities will appear. Scrolling Through MAC Addresses Use the following procedure to scroll through the list of active MAC addresses corresponding to the selected port: 1. If the MAC Addresses screen is not the current screen, press the Tab key until it appears. 1.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch 2. Highlight the desired option, and then press the Enter key. 3. If you selected Set Learning Limit, the Enter New Limit screen appears. 5. After reviewing this information, press the Esc key until you return to the desired screen. Per Port MAC Limit If you select Per Port MAC Limit from the Port Perspective screen, a screen similar to the following one appears. 4. Type the new limit, and press the Enter key.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch IP & RIP SETTINGS ARP TABLE SETTINGS If you select IP & RIP Settings from the IP Networking screen, an IP Settings screen similar to the following will appear, along with a list of the VLAN IDs, IP addresses, subnet masks, and frame types currently defined.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch Deleting Static ARP Table Entries If you no longer need a static entry in the ARP table, use the following procedure to delete it. Since there is no precautionary message that appears before you delete a static ARP table entry, be sure you want to delete the entry before you begin. 1. From the ARP Table screen, use the Up Arrow or Down Arrow key to highlight the ARP table entry you want to delete. 3. Type an Internet address.
ProConnect II® Series ROUTING TABLE Layer 2 Management 4-Port Gigabit Ethernet Switch Protocol If you select Routing Table from the IP Networking screen, a Routing Table screen similar to the following will appear. Indicates one of the following: Local A manually configured routing entry. NetMgmt A routing entry set via SNMP. ICMP A routing entry obtained via ICMP redirect. RIP A routing entry learned via the RIP protocol. Other A protocol other than one of the other four listed above.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch Searching for Routing Table Entries Use the following procedure to search for entries in the Routing Table: 1. From the Routing Table screen, press the “S” key. The Enter Network Address screen will appear. If you select Static Route, the following screen will appear. At each field, press Enter, type the appropriate parameter, and press Enter again. Use the Up Arrow and Down Arrow keys to move between fields. Proceed to step 3. 2.
ProConnect II® Series Delay shows the number of seconds that must elapse before a DHCP request broadcast is relayed to the next IP subnetwork. Servers shows any preferred servers that have been defined. Relays shows the outbound IP subnetwork for relaying a DHCP request broadcast. The following procedure describes how to change the DHCP gateway settings. As part of this procedure, you can specify up to three preferred servers and/or an outbound relay interface.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch PING SETTINGS If you select Ping from the IP Networking screen, a Ping screen similar to the following will appear, with the Host field highlighted. 8. Press the Down Arrow key and press Enter to specify the preferred server. When the following screen appears, type the delay, in seconds, and press Enter. Use the following procedure to change the ping settings: 1. Press Enter. The Enter IP Address screen will appear. 9.
ProConnect II® Series 5. Type a packet count number from 1 to 999, or type 0 for an infinite packet count. Press Enter. 6. Move to Size and press Enter. The Enter Packet Size screen will appear. 7. Type the packet size, from 0 to 1500, then press Enter. Layer 2 Management 4-Port Gigabit Ethernet Switch BRIDGING If you select Bridging from the Advanced Management screen, the following Bridging Parameters screen will appear. 1.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch STATIC FILTERING From each of these screens, you are able to: If you select Static Filtering from the Advanced Management screen, the following Static Filtering screen will appear, with Source MAC Address highlighted. • Hold down the Shift key and press the “+” key to add a specific MAC address to be filtered. • Press the “-” (hyphen) key to delete a specific MAC address from being filtered.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch 4. Type a decimal number for the bridge priority and press Enter. The decimal value you typed will appear next to Bridge Priority. 5. Use the Down Arrow key to move to Hello Time and press Enter. The Enter Hello Time screen will appear. Use the following procedure to modify the selections shown: 1. With the Spanning Tree Protocol field highlighted, press Enter. The following choices will appear (see next page). 6.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch Use the following procedure to change the administration status: Spanning Tree Path Costs 1. Use the Up Arrow and Down Arrow keys to highlight the desired port. Highlight Spanning Tree Path Costs in the Spanning Tree Protocol screen and press the Enter key. A Spanning Tree Path Costs screen similar to the following will appear. 2. Press the Enter key. The Admin Status Options screen will appear.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch Spanning Tree Port Priorities SNMP FUNCTIONS Highlight Spanning Tree Port Priorities in the Spanning Tree Protocol screen and press the Enter key, a Spanning Tree Port Priorities screen similar to the following will appear. If you select SNMP from the Advanced Management screen, the following SNMP Configurations screen will appear, with the SNMP value highlighted.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch 4. Type a get community name and press Enter. The get community name you typed will appear next to Get Community Name. 5. Use the Down Arrow key to move to Set Community Name and press Enter. The Enter Set Community Name screen will appear. 11. Type an IP address for trap host 1. The address consists of numbers separated by periods (e.g., 129.32.0.11). 12. Press Enter.
ProConnect II® Series 17. Select Disabled or Enabled and press Enter. Your selection will appear next to Warm Start Trap. 18. Press the Down Arrow key to move to Link Down Trap and press the Enter key. The Trap Options screen will appear. Layer 2 Management 4-Port Gigabit Ethernet Switch Stacking Basic Setting enables you to set stack ID, stack size, and stack port. Stack IP Settings lets you to set the IP address of the stacked switches. Stack Port Mapping shows information about all ports.
ProConnect II® Series 3. Use the down arrow key to move to the column of Stack Size. Press the Enter key and the Enter Stack Size column will appear. Type in the value you want to change. Then press the Enter key. Layer 2 Management 4-Port Gigabit Ethernet Switch Press the ESC key. The selected port will appear in the Stack Port field. 6. Use Up or Down arrow key to highlight the Stacking field. Press the Enter key and the Stack Options will appear. Highlight Enabled and press the Enter key. 4.
ProConnect II® Series OTHER PROTOCOLS Layer 2 Management 4-Port Gigabit Ethernet Switch 2. To change the IGMP setting, highlight IGMP and press Enter. When the following screen appears, highlight the desired setting and press Enter. Highlight Other Protocols from the Advanced Management screen and press the Enter key. The Other Protocol Settings screen will appear, with the GVRP value highlighted. 3. When you finish, press the Esc key until you return to the desired screen. 1.
ProConnect II® Series 3. Highlight the range of ports you want to associate with the trunk group, then press Enter. The port range appears next to the selected trunk group, as in the following screen. Layer 2 Management 4-Port Gigabit Ethernet Switch 6. To associate additional ports with trunk groups, repeat steps 2 through 5. 7. When you finish, press the Esc key until you return to the desired screen.
ProConnect II® Series Setting Global Settings To set global settings: 1. From the QoS menu, highlight Global Settings and press the Enter key. The Global Setting menu appears. Layer 2 Management 4-Port Gigabit Ethernet Switch 5. Highlight whether you want to enable or disable DiffServ Expedite Forwarding, and then press the Enter key. Your selection appears next to DiffServ Expedite. 6. Press the Down Arrow key to highlight Tos/VLAN Tag. 7. Press the Enter key. The ToS/VLAN Priority Tag menu appears. 2.
ProConnect II® Series 11. To change the low-drop percentage, press the Enter key with Low Drop Percentage highlighted. The following screen appears. Layer 2 Management 4-Port Gigabit Ethernet Switch 13. Highlight the appropriate percentage and press the Enter key. 14. Press the Esc key to return to the WRED Drop Priority screen. 15. To change the high-drop percentage, press the Down Arrow key to highlight High Drop Percentage, then press the Enter key. The following screen appears. 12.
ProConnect II® Series 17. Highlight the appropriate percentage and press the Enter key. Layer 2 Management 4-Port Gigabit Ethernet Switch 1. Use the Down Arrow key to highlight the appropriate port, and then press the Enter key. The User-Define menu appears for the port you selected. 18. Press the Esc key to return to the WRED Drop Priority screen. 19. Press the Esc key to return to the QoS screen. 20. Press Esc until you return to the desired screen.
ProConnect II® Series 5. Highlight whether the drop priority should be low or high, and then press the Enter key. Your selection appears next to Drop Priority. Layer 2 Management 4-Port Gigabit Ethernet Switch Well-Known Port To set well-known port settings: 6. Press the Down Arrow key to highlight Transmit Priority, and then press the Enter key. The Transmit Priority menu appears. 1. From the Logical Port menu, highlight Well-Known Port and press the Enter key. The Well-Known Port Index menu appears.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch 2. To change the low port number, press the Enter key with the highlight on Low Port Number. When the Low Port Number screen appears, type the low port number, in decimal notation, and press the Enter key. The low port number you typed appears next to Low Port Number. 5. To change the transmit priority setting, press the Down Arrow key to highlight Transmit Priority, then press the Enter key.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch 2. Press the Down Arrow key to highlight a VLAN priority number, and then press the Enter key. The VLAN Priority Setting screen appears. 6. Highlight the desired transmit priority, then press the Enter key. The transmit priority you selected appears next to Transmit Priority. 7. Press the Esc key to return to the VLAN Priority Index screen. 3. With Drop Priority highlighted, press the Enter key. The Drop Priority screen appears. 8.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch 2. Press the Down Arrow key to highlight a ToS priority number. 2. Perform one of the following steps: Note: The ToS priority number is determined by bit [4:2] of the ToS field in the IP header. • To specify a megabit profile that is used by a 10/100 Megabit port, refer to "Megabit Profile". • To specify a gigabit profile that is used by a Gigabit port, refer to "Gigabit Profiles". 3. Press the Enter key.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch 3. To change the profile name, press the Enter key with Profile Name. When Profile Name box appears, enter a profile name and press the Enter key. The name you entered appears next to Profile Name. Note Ports Using This Profile, Strict Priority, Delay Sensitive Application, and Profile Status are all read-only parameters that cannot be changed. 6.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch Specifying the Port Configuration To specify port configuration parameters: 1. From the QoS screen, use the Down Arrow key to highlight Port Configuration, and then press the Enter key. The Port Configuration screen appears. 2. Use the Down Arrow key to highlight a profile, and then press the Enter key. The Gigabit Profile Attributes screen appears.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch 2. Use the Down Arrow key to highlight Rate Control and press the Enter key. The Rate Control Status screen appears. Note Fixed Drop Priority and Fixed Transmit Priority are read-only parameters that cannot be changed. 4. Press the Esc key until you return to the desired screen. 3. Highlight the desired setting, then press the Enter key. Your selection appears next to Rate Control in the Rate Control screen. 4.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch 9. Highlight either Bursting or Streaming, then press the Enter key. Your selection appears next to Traffic Type. 10. Press the Esc key until you return to the desired screen. 6. To change the average rate setting, press the Enter key. The Average Rate screen appears.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch 6. Highlight Yes and press the Enter key to transfer the file now, or press the Esc key or highlight No and press the Enter key to not transfer the file at this time. Sending Files via TFTP The following procedure describes how to send files using the TFTP protocol. 2. If the name of the file you intend to receive is different than the default one shown, press the Enter key.
ProConnect II® Series 3. Highlight the file type you want to send and press the Enter key. The file type you selected appears next to File Name. Layer 2 Management 4-Port Gigabit Ethernet Switch 2. Highlight Yes and press the Enter key to transfer the file now, or press the Esc key or highlight No and press the Enter key to not transfer the file at this time. 4. Use the Down Arrow key to highlight IP Address, then press the Enter key.
ProConnect II® Series SNMP and RMON Management Overview This section describes the Switch’s Simple Network Management Protocol (SNMP) and Remote Monitoring (RMON) capabilities. RMON is an abbreviation for the Remote Monitoring MIB (Management Information Base). RMON is a system defined by the Internet Engineering Task Force (IETF) document RFC 1757, which defines how networks can be monitored remotely.
ProConnect II® Series Layer 2 Management 4-Port Gigabit Ethernet Switch BRIDGE GROUPS SUPPORTED Appendix The Switch supports the following four groups of Bridge MIB (RFC1493): About Fast Ethernet • The dot1dBase Group a mandatory group that contains the objects applicable to all types of bridges.
ProConnect II® Series About Gigabit Ethernet Twisted-Pair Cabling Gigabit Ethernet runs at speeds of 1Gbps (Gigabit per second), ten times faster than 100Mbps Fast Ethernet, but it still integrates seamlessly with 100Mbps Fast Ethernet hardware. Users can connect Gigabit Ethernet hardware with either fiber optic cabling or copper Category 5 cabling, with fiber optics more suited for network backbones.
ProConnect II® Series Crimping Your Own Network Cables Layer 2 Management 4-Port Gigabit Ethernet Switch Glossary 10BaseT - An Ethernet standard that uses twisted wire pairs. 100BaseTX - IEEE physical layer specification for 100 Mbps over two pairs of Category 5 UTP or STP wire. 1000BASE-T - provides half-duplex (CSMA/CD) and full-duplex 1000Mb/s Ethernet service over Category 5 links as defined by ANSI/TIA/EIA-568-A. Topology rules for 1000BASE-T are the same as those used for 100BASE-T.
ProConnect II® Series Automatic Fall-back - A feature provided by some wireless products to increase connection reliability. Automatic fall-back enables a device to dynamically shift between various data transfer rates. It works by decreasing the data transfer rate when interference increases, distance increases, and other factors undermine signal strength and quality. Auto-MDI/MDIX - On a network hub or switch, an auto-MDI/MDIX port automatically senses if it needs to act as a MDI or MDIX port.
ProConnect II® Series CPU (Central Processing Unit) - The computing part of the computer. Also called the "processor," it is made up of the control unit and ALU. DHCP supports static addresses for computers containing Web servers that need a permanent IP address. Database - A database is a collection of data that is organized so that its contents can easily be accessed, managed, and updated. DMZ (Demilitarized Zone) - Allows one IP address (or computer) to be exposed to the Internet.
ProConnect II® Series Dynamic Routing - The ability for a router to forward data via a different route based on the current conditions of the communications circuits. For example, it can adjust for overloaded traffic or failing lines and is much more flexible than static routing, which uses a fixed forwarding path. Encryption - A security method that applies a specific algorithm to data in order to alter the data's appearance and prevent other devices from reading the information.
ProConnect II® Series Half Duplex - Data transmission that can occur in two directions over a single line, but only one direction at a time. Hardware - Hardware is the physical aspect of computers, telecommunications, and other information technology devices. The term arose as a way to distinguish the "box" and the electronic circuitry and components of a computer from the program you put in it to make it do things. The program came to be known as the software.
ProConnect II® Series LAN (Local Area Network) - A group of computers and associated devices that share a common communications line and typically share the resources of a single processor or server within a small geographic area (for example, within an office building). Latency - The time delay between when the first bit of a packet is received and the last bit is forwarded.
ProConnect II® Series RAID improves performance by disk striping, which interleaves bytes or groups of bytes across multiple drives, so more than one disk is reading and writing simultaneously. RIP (Routing Information Protocol) - A simple routing protocol that is part of the TCP/IP protocol suite. It determines a route based on the smallest hop count between source and destination. RIP is a distance vector protocol that routinely broadcasts routing information to its neighboring routers.
ProConnect II® Series TCP (Transmission Control Protocol) - A method (protocol) used along with the IP (Internet Protocol) to send data in the form of message units (datagram) between network devices over a LAN or WAN. While IP takes care of handling the actual delivery of the data (routing), TCP takes care of keeping track of the individual units of data (called packets) that a message is divided into for efficient delivery over the network.
ProConnect II® Series Customer Support Specifications Standards Protocol Ports Cabling Type LEDs Layer 2 Management 4-Port Gigabit Ethernet Switch IEEE: 802.1d, 802.1p, 802.1q, 802.3, 802.3ab, 802.3ad, 802.3u, 802.3x, 802.
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