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Cisco Systems 116T manual

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Table of contents for the manual

  • Page 1

    CHAPTER Overview 1-1 1 Ov er vie w The FastHub 116T is an unmanaged 16-port 100BaseT Class II repeater for workgroups and server f arms. It is a member of an extended netw ork system of stackable, modular LAN and W AN products that increase LAN performance, connect remote offices and users, and provide secure access. Figure 1-1 sho ws the network [...]

  • Page 2

    1-2 FastHub 116T Installation Guide Feature Summary Feature Summary The FastHub has 16 fix ed 100BaseTX ports (with an alternativ e uplink port for connecting to other 100BaseTX hubs). T able 1-1 summarizes the FastHub features. T able 1-1 Feature Summary Fr ont P anel Description The front panel of the FastHub pro vides 16 100BaseTX ports, a 100B[...]

  • Page 3

    Overview 1-3 Front Panel Description Figure 1-2 Front P anel Port Connectors Ports 1x through 16x hav e their transmit (TD) and recei ve (RD) pairs internally crossed. Standard Category 5 UTP cr ossover cable is required when connecting these ports to another hub, switch, or router (unless you are connecting to the uplink port on another FastHub or[...]

  • Page 4

    1-4 FastHub 116T Installation Guide Front Panel Description LEDs Y ou can use the FastHub LEDs to monitor network acti vity and performance. Figure 1-3 shows the location of the LEDs and the Mode b utton. Figure 1-3 LEDs and Mode Button RPS LED The redundant po wer system LED shows the status of the RPS (see T able 1-2). T able 1-2 RPS LED Descript[...]

  • Page 5

    Overview 1-5 Front Panel Description SYSTEM LED The system status LED shows whether the FastHub is po wered up and pro vides an indication of any problem with the main system board of the F astHub (see T able 1-3). Note The system status LED and RPS LED are used together to isolate internal power supply or RPS problems. See the “V erifying and T [...]

  • Page 6

    1-6 FastHub 116T Installation Guide Front Panel Description P or t Mode LED The port mode LED indicates the ST A T (port status), UTL (bandwidth utilization), and ID (unit identification) modes. Note Port 16 (the uplink port) uses the port 16x LED. ST A T Mode In port status mode, port LEDs show indi vidual port status (see T able 1-5). T able 1-5[...]

  • Page 7

    Overview 1-7 Front Panel Description UTL Mode In utilization mode, bandwidth usage is shown for the F astHub . The port LEDs show the current bandwidth and the peak bandwidth usage that occurred since the last reset. The far -right solid green LED denotes the peak bandwidth that was recorded since the last reset. All LEDs to the left of the solid g[...]

  • Page 8

    1-8 FastHub 116T Installation Guide Rear Panel Description Mode Button T o change the mode being displayed by a port LED, press the Mode button to highlight in sequence each of the modes: ST A T , UTL, and ID. The Mode button is independent of the Collision LED. When the desired mode is selected, release the button to mak e the change. As long as y[...]

  • Page 9

    Overview 1-9 Examples of Using the FastHub Examples of Using the F astHub This section describes sev eral possible network configurations using the F astHub . Workgroups Y ou can create 100-Mbps workgroups by interconnecting F astHubs (FastHub 116T , FastHub 216T , and FastHub 300 series), as sho wn in Figure 1-5. Figure 1-5 FastHubs in a W orkgro[...]

  • Page 10

    1-10 FastHub 116T Installation Guide Examples of Using the FastHub Ser v er Far ms Using the FastHub, you can create 100-Mbps serv er farms to increase centralized and decentralized server performance, as sho wn in Figure 1-6. Figure 1-6 FastHubs in a Server F arm Application S6323 Server farm of up to 15 servers 10BaseT hub FastHub 1 16T FastHub 2[...]

  • Page 11

    Overview 1-11 Examples of Using the FastHub Extended Network System A system of routers, switches, and hubs can be combined to create a high-performance network that extends be yond the main of fice LAN to connect to branch of fices, remote sites, mobile users, and the Internet. Figure 1-7 is an application for an extended network system. Figure [...]

  • Page 12

    1-12 FastHub 116T Installation Guide Examples of Using the FastHub[...]