Computer networks cabling LANs & WANs

. 7/19/2008 1 Module 5: Cabling LANs and WANs 7/19/2008 10 UTP implementation (cont.) 7/19/2008 11 UTP implementation. server-based networks simplify the administration of large networks. 7/19/2008 26 Client/server (cont.) 7/19/2008 27 Client/server (cont.) 7/19/2008 28  5.2 Cabling

Ngày tải lên: 22/10/2013, 16:41

. devices (cont.)  Bridges : They provide connections between LANs. Not only do bridges connect LANs, but they also perform a check on the data to determine. communication on the source computer communicates with a layer-specific PDU (Protocol Data Unit), and with its peer layer on the destination computer.  The lower

Ngày tải lên: 22/10/2013, 16:36

. points may be installed with a degree of overlap.  The overlap permits "roaming" between cells. (ex: cellular phone )  Overlap not addressed in. modulation.  Modulation in WLANs : phase modulation 2008/7/19 10 Current (cont.) 2008/7/19 59 Signals and noise on a WLANs  Interference  Microwave

Ngày tải lên: 22/10/2013, 16:39

. reliable, relatively low cost end-to-end Ethernet networks become possible.  TCP/IP can run over LANs, MANs, and WANs with one Layer 2 Transport method. 2008/7/19 23 10-Gigabit. but is not required.  Manchester line encoding  Falling edge > bit 0  Raising edge > bit 1  The same basic design rule  The timing limits 

Ngày tải lên: 22/10/2013, 16:42

. it out the destination port.  To verify the Frame Check Sum (FCS).  Fail > it is discarded.  Fragment-free  The switch reads the first 64 bytes. the line becomes greater and even starts to effect the performance of the computers on the network.  Finally when the collision domain becomes too big

Ngày tải lên: 22/10/2013, 16:44

. to a subnet, based on a variety of criteria.  Some owners of Class A and B networks have also discovered that subnetting creates a revenue source for. subnet mask address  As an example, the network requires 30 hosts and five subnetworks. 2008/7/19 11 Packet propagation and switching within a router (cont.) 2008/7/19 56 Applying

Ngày tải lên: 22/10/2013, 16:46