CS 350 Chapter-5. Conn. devicesDescription HubConnect multiple network segments, doesn’t recognize frame, broadcast to all ports Repeater (hubs) Reamplify/regenerate.

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Presentation transcript:

CS 350 Chapter-5

Conn. devicesDescription HubConnect multiple network segments, doesn’t recognize frame, broadcast to all ports Repeater (hubs) Reamplify/regenerate signals and forward to all ports Modem (POT/DSL/Cabl e) Digital data  analog carrier  digital data the for receiver NICProvide the physical/electrical/electronic connection TransceiverAllow NIC/networking device to connect to a different type of media. Ether (100Base-TX) Switch + fiber transceiver to each port + fiber-optic cable+ fiber (100Base-FX)switch BridgeConnect two similar network segments, keep traffic separated, break up collision domain, software based Basic switch (layer 2 switch; Layer3=router) Connect multiple network segments, recognize frame, know MAC addresses and direct to correct port, otherwise flood to all ports w/o receiving port

Conn. devicesDescription Multilayer Switch Switching and routing. Packet switching by using application-specific integrated circuit (ASIC) hardware; router uses a microprocessor Content Switch Load balancing, encryption/decryption Wireless APWireless hub/switch Basic router(layer 3 switch) Connect many, sometimes disparate, network segments, packet switching/filtering, patch selection Basic firewallBlackbox/software on a server/router between Internet (public side) and your network(private side) Or, Internet– firewall—DMZ (demilitarized zone, like web and server)—firewall– internal network

Conn. devicesDescription DNS serverDomains, record types, DNS query IDS/IPSIntrusion detection or prevention system Bandwidth Shaper Channel Service Unit/Data Service Unit CSU/DSU, connect transmission medium like a T1 line to a router DHCP serverAssign IP address to hosts using bootP protocol (port68, port 67). Client gets a IP address, a subnet mask, a lease time, the IP address of the DHCP server, default gateway, DNS server IP address/ the domain name …

How many broadcast domains and collision domains?

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