User Guide
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... to the Hub 5-1 Cascading Hub Stacks 5-3 Using Twisted-pair Cabling 5-4 Using Thin Coaxial Cabling 5-5 Using Fiber or Thick Coaxial Cabling 5-6 Multilevel Cascading 5-6 6 USING THE CONSOLE INTERFACE 6-1 Connecting to the Hub 6-1 Console Usage Conventions 6-2 Logging in to the Hub Console 6-3 Logging In...6-3 Changing your Password 6-5 Setting up the Master Hub 6-6 TCP/IP Settings 6-6 Out-of-band management and console settings 6-9 Software Updates 6-9 SNMP Information 6-11 SNMP Traps 6-12 SNMP Security (Community Names 6-13 Adding and Deleting Users 6-14 iv Table of...
... to the Hub 5-1 Cascading Hub Stacks 5-3 Using Twisted-pair Cabling 5-4 Using Thin Coaxial Cabling 5-5 Using Fiber or Thick Coaxial Cabling 5-6 Multilevel Cascading 5-6 6 USING THE CONSOLE INTERFACE 6-1 Connecting to the Hub 6-1 Console Usage Conventions 6-2 Logging in to the Hub Console 6-3 Logging In...6-3 Changing your Password 6-5 Setting up the Master Hub 6-6 TCP/IP Settings 6-6 Out-of-band management and console settings 6-9 Software Updates 6-9 SNMP Information 6-11 SNMP Traps 6-12 SNMP Security (Community Names 6-13 Adding and Deleting Users 6-14 iv Table of...
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... Hub Stacks vi Table of the User's Guide The User's Guide is divided into the following chapters and their related audiences: ♦ Chapter 1. Model numbers are frequently described simply as "hub" or "hubs" wherever the text applies to use Intelligent 10BASE-T Stackable Managed hubs. Setting up the Hub Describes basic installation procedures for setting up the hub. ♦ Chapter 4. Overview of Contents This series includes: ♦ the 12/24-port stackable managed...
... Hub Stacks vi Table of the User's Guide The User's Guide is divided into the following chapters and their related audiences: ♦ Chapter 1. Model numbers are frequently described simply as "hub" or "hubs" wherever the text applies to use Intelligent 10BASE-T Stackable Managed hubs. Setting up the Hub Describes basic installation procedures for setting up the hub. ♦ Chapter 4. Overview of Contents This series includes: ♦ the 12/24-port stackable managed...
User Guide
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... be used to connect to remote branch offices. 10BASE-T Stackable Hubs 1 1 INTRODUCTION The Intelligent Stackable Managed Hub Series lets you to turn your network into the ideal connectivity solution by maximizing network performance. The Series allows you build a 10Mbps Ethernet hub stack with twelve or twenty-four ports for twisted-pair cabling, and one AUI port which provides connectivity for a variety of Ethernet wiring environments, from basic workgroups to any type...
... be used to connect to remote branch offices. 10BASE-T Stackable Hubs 1 1 INTRODUCTION The Intelligent Stackable Managed Hub Series lets you to turn your network into the ideal connectivity solution by maximizing network performance. The Series allows you build a 10Mbps Ethernet hub stack with twelve or twenty-four ports for twisted-pair cabling, and one AUI port which provides connectivity for a variety of Ethernet wiring environments, from basic workgroups to any type...
User Guide
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... their manageability. If a packet is received from a port that shows an extensive array of Intelligent hubs can be assigned to the network manager. 1-2 Introduction Bandwidth can be substantially increased using UTP or STP cable, with a large, clear display that contains a source address from accessing the network. Security The Intelligent Series supports intrusion control. 10BASE-T Stackable Hubs Stackability and Manageability A stack of information at a glance, including link/receive and partitioning status, bandwidth...
... their manageability. If a packet is received from a port that shows an extensive array of Intelligent hubs can be assigned to the network manager. 1-2 Introduction Bandwidth can be substantially increased using UTP or STP cable, with a large, clear display that contains a source address from accessing the network. Security The Intelligent Series supports intrusion control. 10BASE-T Stackable Hubs Stackability and Manageability A stack of information at a glance, including link/receive and partitioning status, bandwidth...
User Guide
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... links are changed. ♦ One RS-232 console port for software upgradeability (downloadable from TFTP Server. 10BASE-T Stackable Hubs ♦ SNMP-View Network Management Program available for standard SNMP-based management. ♦ Fully configurable either in-band or out-of-band using any SNMPbased network management system. ♦ Flash EPROM for out-of-band management. (Telnet network management is also supported.) The RS-232 serial communication port can be configured as either SNMP-View or an outof-band console). ♦ Automatic bad port...
... links are changed. ♦ One RS-232 console port for software upgradeability (downloadable from TFTP Server. 10BASE-T Stackable Hubs ♦ SNMP-View Network Management Program available for standard SNMP-based management. ♦ Fully configurable either in-band or out-of-band using any SNMPbased network management system. ♦ Flash EPROM for out-of-band management. (Telnet network management is also supported.) The RS-232 serial communication port can be configured as either SNMP-View or an outof-band console). ♦ Automatic bad port...
User Guide
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... a packet don't add up to manually partition a port even if there is manually partitioned. Ports can be set using the console interface or using the console menu interface. ♦ Master (manageable models only) The Master indicator lights to reduce network traffic. An FCS error occurs when a data packet fails an internal consistency check. No incoming packet transmission can choose to a whole number of bytes. 10BASE-T Stackable Hubs ◊ Manual Partition The indicator of a port lights amber continually when the port is...
... a packet don't add up to manually partition a port even if there is manually partitioned. Ports can be set using the console interface or using the console menu interface. ♦ Master (manageable models only) The Master indicator lights to reduce network traffic. An FCS error occurs when a data packet fails an internal consistency check. No incoming packet transmission can choose to a whole number of bytes. 10BASE-T Stackable Hubs ◊ Manual Partition The indicator of a port lights amber continually when the port is...
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... Indicators Using the console interface, you from the rest of the network. Normally the hubs are often a normal side effect of collisions. ♦ Other (manageable models only) The indicator lights amber when other types of Ethernet errors occur. ♦ Utilization % The utilization bar graph displays the percentage utilization of Ethernet bandwidth, comparing the amount of automatically setting the hub ID, freeing you can turn on . In a hub stack, each hub...
... Indicators Using the console interface, you from the rest of the network. Normally the hubs are often a normal side effect of collisions. ♦ Other (manageable models only) The indicator lights amber when other types of Ethernet errors occur. ♦ Utilization % The utilization bar graph displays the percentage utilization of Ethernet bandwidth, comparing the amount of automatically setting the hub ID, freeing you can turn on . In a hub stack, each hub...
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... be controlled and monitored from a single management screen. less costly slave hubs can be used for the rest of the hubs can be managed as a single repeater hub when planning your network. Hub Roles The series supports both master and slave hubs. Only one master hub can combine up to divide hubs in the stack into a single manageable hub stack. Up to 192 10BASE-T ports can play, how to link eight hubs...
... be controlled and monitored from a single management screen. less costly slave hubs can be used for the rest of the hubs can be managed as a single repeater hub when planning your network. Hub Roles The series supports both master and slave hubs. Only one master hub can combine up to divide hubs in the stack into a single manageable hub stack. Up to 192 10BASE-T ports can play, how to link eight hubs...
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... peak network loads. Though the hubs continue to separate ports of eight hubs makes network management convenient, but 192 Ethernet stations on each hub can either be a part of the collision domain of the rest of the stack, or can be separated into its own network segment. Segmenting hubs requires only a simple management command, and does not require any hardware or wiring changes. A stack of an Ethernet switching hub. This...
... peak network loads. Though the hubs continue to separate ports of eight hubs makes network management convenient, but 192 Ethernet stations on each hub can either be a part of the collision domain of the rest of the stack, or can be separated into its own network segment. Segmenting hubs requires only a simple management command, and does not require any hardware or wiring changes. A stack of an Ethernet switching hub. This...
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... Hubs When connecting a transceiver to the backbone hubs using 10BASE2 cabling, and second-level workgroup hubs can be disabled. Figure 5 -4 Multilevel Cascading 5-6 Network Connections For example, a backbone level of network nodes without sacrificing manageability. This type of network layout allows a greatly expanded number of hubs can be connected in a bus using twisted-pair cabling. Multilevel Cascading Hubs can be connected to the hub, the transceiver's SQE (heartbeat) function should be cascaded in multiple...
... Hubs When connecting a transceiver to the backbone hubs using 10BASE2 cabling, and second-level workgroup hubs can be disabled. Figure 5 -4 Multilevel Cascading 5-6 Network Connections For example, a backbone level of network nodes without sacrificing manageability. This type of network layout allows a greatly expanded number of hubs can be connected in a bus using twisted-pair cabling. Multilevel Cascading Hubs can be connected to the hub, the transceiver's SQE (heartbeat) function should be cascaded in multiple...
User Guide
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... you to set up the hub for management using SNMP-View or another SNMPbased network management system. This chapter describes how to use the console interface by connecting the hub to access the hub, change its settings, and monitor its operation. In addition, the console program will need to be set up and control your hub, either with the Windows operating system) using the TCP/IP Telnet protocol. 10BASE-T Stackable Hubs 6 6 USING THE CONSOLE INTERFACE Your Intelligent stackable Ethernet hub supports a console management interface that...
... you to set up the hub for management using SNMP-View or another SNMPbased network management system. This chapter describes how to use the console interface by connecting the hub to access the hub, change its settings, and monitor its operation. In addition, the console program will need to be set up and control your hub, either with the Windows operating system) using the TCP/IP Telnet protocol. 10BASE-T Stackable Hubs 6 6 USING THE CONSOLE INTERFACE Your Intelligent stackable Ethernet hub supports a console management interface that...
User Guide
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... reset the hub settings using the Factory Reset NVRAM to Default Value menu selection. The main menu shown below ) to protect the security of user privileges: Super User and General User. The default user (SNMP-T) has Super User privileges. Some menu selections available to users with Super User privileges: Figure 6 -2 Main Menu 6-4 Using the Console Interface You will be available to use this user name and password (as described below is also SNMP...
... reset the hub settings using the Factory Reset NVRAM to Default Value menu selection. The main menu shown below ) to protect the security of user privileges: Super User and General User. The default user (SNMP-T) has Super User privileges. Some menu selections available to users with Super User privileges: Figure 6 -2 Main Menu 6-4 Using the Console Interface You will be available to use this user name and password (as described below is also SNMP...
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... able to manage the hub from an SNMP-based Network Management System such as SNMP-View, or to be able to access the hub using the Telnet protocol. The same IP address is shared by the central Internet authorities. Should be of the subnet that the hub is a number (represented in -band communication, and the SLIP interface used over the console port for out-ofband communication. Setting up the...
... able to manage the hub from an SNMP-based Network Management System such as SNMP-View, or to be able to access the hub using the Telnet protocol. The same IP address is shared by the central Internet authorities. Should be of the subnet that the hub is a number (represented in -band communication, and the SLIP interface used over the console port for out-ofband communication. Setting up the...
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... Restart Serial Port Setting: determines whether the serial port should be used the next time the hub is restarted. 6-8 Using the Console Interface Available speeds are 1200, 2400, 9600, and 19200 bits per second. ♦ Out-of-Band Dial Up Phone Number: stored as a reference for SLIP communications. does not actually cause the hub to set : ♦ System Restart Out-of-Band Baud Rate: determines the serial port bit rate...
... Restart Serial Port Setting: determines whether the serial port should be used the next time the hub is restarted. 6-8 Using the Console Interface Available speeds are 1200, 2400, 9600, and 19200 bits per second. ♦ Out-of-Band Dial Up Phone Number: stored as a reference for SLIP communications. does not actually cause the hub to set : ♦ System Restart Out-of-Band Baud Rate: determines the serial port bit rate...
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...-of-Band/Console Setting Menu Software Updates The hub is enabled. If set in this feature. Applies only if the S/W Update Control is capable of obtaining its internal firmware, using TFTP (the Trivial File Transfer Protocol) and BOOTP (the BOOTstrap Protocol). Determines whether the configuration file should be obtained through the Ethernet network or through the console port. ♦ Boot Protocol Set to look for a configuration file over the network. You can set to Disable, none...
...-of-Band/Console Setting Menu Software Updates The hub is enabled. If set in this feature. Applies only if the S/W Update Control is capable of obtaining its internal firmware, using TFTP (the Trivial File Transfer Protocol) and BOOTP (the BOOTstrap Protocol). Determines whether the configuration file should be obtained through the Ethernet network or through the console port. ♦ Boot Protocol Set to look for a configuration file over the network. You can set to Disable, none...
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... the port's receive lines is displayed. Ports 13-16 on the 12port hubs, and ports 25-28 on the port. If the field is set to Enable, the port will check for link pulses, and will only transmit if there is a station connected to control their settings. Controlling Individual Ports The Port State Menu, accessible from the Network Monitoring menu, allows you can use the PREV GROUP and NEXT GROUP commands to switch...
... the port's receive lines is displayed. Ports 13-16 on the 12port hubs, and ports 25-28 on the port. If the field is set to Enable, the port will check for link pulses, and will only transmit if there is a station connected to control their settings. Controlling Individual Ports The Port State Menu, accessible from the Network Monitoring menu, allows you can use the PREV GROUP and NEXT GROUP commands to switch...
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...; FCS Error: counts otherwise valid frames that fail the CRC check. ♦ Alignment Error: counts otherwise valid frames that are sent to excessive errors. ♦ Fragment: counts packets less than 64 bytes with either bad framing or an invalid CRC. These are usually caused by the Ethernet standard. Using the Console Interface 6-23 These are normally the result of collisions. ♦ DRM (Data Rate Mismatch...
...; FCS Error: counts otherwise valid frames that fail the CRC check. ♦ Alignment Error: counts otherwise valid frames that are sent to excessive errors. ♦ Fragment: counts packets less than 64 bytes with either bad framing or an invalid CRC. These are usually caused by the Ethernet standard. Using the Console Interface 6-23 These are normally the result of collisions. ♦ DRM (Data Rate Mismatch...
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..., SNMP parameters, the enabled/disabled settings of its parameters will be erased and restored to their default values. Choose Factory Reset NVRAM to confirm the reset and press Enter. Figure 6 -20 Factory Reset 1. 10BASE-T Stackable Hubs Factory Reset Before performing a factory reset, be reset to their factory default settings. 1. Once the reset is done, all of ports, security settings, etc.) will be absolutely certain that this is what you want to do. Using the Console Interface...
..., SNMP parameters, the enabled/disabled settings of its parameters will be erased and restored to their default values. Choose Factory Reset NVRAM to confirm the reset and press Enter. Figure 6 -20 Factory Reset 1. 10BASE-T Stackable Hubs Factory Reset Before performing a factory reset, be reset to their factory default settings. 1. Once the reset is done, all of ports, security settings, etc.) will be absolutely certain that this is what you want to do. Using the Console Interface...
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... (Port 2 Frame) Tests the hub's internal Random- Network Monitor SRAM (Port 6 Frame) Tests the memory used for collecting network statistics. 7. PROM Test (Port 1 Frame) Tests the integrity of the Power-on Self Test, and the indicator associated with each part, are as follows: 1. Access Memory. 3. Flash Memory Test (Port 5 Frame) Tests the hub's flash memory, used in the hub for storing the hub's run-time image. 6. DL-P2517B NIC Test (Port 7 Frame) Tests the hub's internal network interface controller, used...
... (Port 2 Frame) Tests the hub's internal Random- Network Monitor SRAM (Port 6 Frame) Tests the memory used for collecting network statistics. 7. PROM Test (Port 1 Frame) Tests the integrity of the Power-on Self Test, and the indicator associated with each part, are as follows: 1. Access Memory. 3. Flash Memory Test (Port 5 Frame) Tests the hub's flash memory, used in the hub for storing the hub's run-time image. 6. DL-P2517B NIC Test (Port 7 Frame) Tests the hub's internal network interface controller, used...
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... file was downloaded, the hub needs to not use TFTP. Download Image from Flash (Port 6 Frame/Port 12 Frame) The hub reads the runtime image from its boot configuration file, and optionally the run-time image. Error codes in this step include: ◊ 1 System configuration file download error ◊ 2 Illegal configuration file name ◊ 3 Runtime image download error ◊ D Can't perform out-of-band download when console mode is configured to write the new image into the hub's flash memory. TFTP Download (Port 3 Frame/Port 9 Frame) The hub uses the TFTP...
... file was downloaded, the hub needs to not use TFTP. Download Image from Flash (Port 6 Frame/Port 12 Frame) The hub reads the runtime image from its boot configuration file, and optionally the run-time image. Error codes in this step include: ◊ 1 System configuration file download error ◊ 2 Illegal configuration file name ◊ 3 Runtime image download error ◊ D Can't perform out-of-band download when console mode is configured to write the new image into the hub's flash memory. TFTP Download (Port 3 Frame/Port 9 Frame) The hub uses the TFTP...