Thread: Wireless WANs: Cellular Telephone and Satellite Networks
View Single Post
  #1  
Old 18-03-2011, 06:33 PM
bonfire's Avatar
bonfire bonfire is offline
M.Arsalan Qureshi

  
Join Date: Oct 2008
Location: Garden Town, Multan Cantt
Posts: 616
Program / Discipline: BSTS
Class Roll Number: 09-31
bonfire has a reputation beyond reputebonfire has a reputation beyond reputebonfire has a reputation beyond reputebonfire has a reputation beyond reputebonfire has a reputation beyond reputebonfire has a reputation beyond reputebonfire has a reputation beyond reputebonfire has a reputation beyond reputebonfire has a reputation beyond reputebonfire has a reputation beyond reputebonfire has a reputation beyond repute
Default Wireless WANs: Cellular Telephone and Satellite Networks
Wireless WANs: Cellular Telephone and Satellite Networks


* A repeater is a connecting device that operates in the physical layer of the Internet model. A repeater regenerates a signal, connects segments of a LAN, and has no filtering capability.
* A bridge is a connecting device that operates in the physical and data link layers of the Internet model.
* A transparent bridge can forward and filter frames and automatically build its forwarding table.
* A bridge can use the spanning tree algorithm to create a loopless topology.
* A backbone LAN allows several LANs to be connected.
* A backbone is usually a bus or a star.
* A virtual local area network (VLAN) is configured by software, not by physical wiring.
* Membership in a VLAN can be based on port numbers, MAC addresses, IP addresses, IP multicast addresses, or a combination of these features.
* VLANs are cost- and time-efficient, can reduce network traffic, and provide an extra measure of security.
__________________

Reply With Quote