Local Area Network

Transport layer is known as the host-to-host layer.

Also data link layer is responsible for point-to-point or point-to-multipoint transport of data.

HTH,

Rajesh

This sounds like a homework question.....hmmmm.

Anyway- if there's a break in a bus topology, the nodes that are downstream from the break are cut-off from the rest of the network.

In a ring topology, the nodes on both sides of the break will loop the path (self-healing) back towards the ring, so every node is still communicating with each other.

They are not the same; a port number indicates a listening program that will receive a packet. That number exists on the target system, but the port number itself has no identification that would allow a packet to be routed or delivered to it.

An IP address identifies a system on a network for delivery purposes. Once the packet arrives, however, it has to be given to an appropriate program listening for a protocol. that is what the port number is for.

• Devices th make up the network.
• Media that connect the devices.
• Messages that are carried across the network.
• Rules and processes that govern network communications.
• Tools and commands for construction and maintaining networks.

There may be several things to check:

Miscunfigured system:

- Try to deactivated your LAN connection and re-activated it (or reboot the system, the results would be the same: the driver gets reset)

- Check the setting of your connection - DHCP on/off? When no DHCP -> IP, subnet and gateway (for example: 192.168.0.5, 255.255.255.0, 192.168.0.1)

- Shut down firewalls (Windows xp offers a build-in firewall which might be activated be a Microsoft security patch)

- Keep the connection as simple as possible to spot the point of error.

Broken hardware:

- check if there are any LED signals at the network port on your computer, most network ports show two LEDs above the RJ45 plugin, one should be green all the time, the other one will flash when there is traffic on the line. When there is no LED lit, there is no (electrical) connection between the Hub/Switch and your computer.

- Try exchanging the patch cable

- Try resetting the Hub/switch

- Last shot: Try reinstalling your network driver (it is unlikely but might be a driver problem)

Yes and No - BOOTP is used in situations where the device needs an IP address and can be matched by its MAC address. Therefore, a client receives an IP address that was matched by the MAC address. That IP address may be part of a subnet, or it may not be.

The protocol itself doesn't care if there are subnets or not. It gives out an IP address, which may be subnetted.

See the related link for an example of a BOOTP entry.

Hosts with the same network portion of their IPv4 address.

The port numbers are as follows:

137, 138, & 139

Ping is a special command line utility which allows to check accessibility of particular hosts. It uses ICMP protocol and because many online services block it, the utility not always provides correct results.

The following components required to meet a network specification.

1. The network devices like switch, router, cables and other all network devices.

10BaseT has transmission rate about 10 Mbps and 802.11b is about 11 Mbps. Usually wire connections are closer to their theoretical limits than their wireless counterparts.

The other two segments must be link segments - connecting through network connectivity devices. Adding any clients on those two links would cause additional attenuation, which is not good for the network.

The OSI 7-Layer model.

255.255.0.0

transport documents are the documents that is proof of carriage goods

To establish a peer-to-peer network connection between two lans, both pc must have network hardware. One multi-port sharing device like a hub is needed to support the computers. use a crossover cable if two computers are the only available unit.

Up-link ports are used to "Up-link" a device to another device such as a hub, router, or switch. Normal ports are used to attach a device to the before mentioned devices. A lot of devices have "auto configuration" or auto-sensing ports. With these auto sensing ports, any port can be utilized as a up-link port.

In the early days of networking, you had to use a crossover cable to up-link a device to another switch, hub, or router. This was before they had up-link ports.

Load leveling is a process of making sure the server or servers do not go above a certain percentage of task load.

Load balancing is another means of taking several servers and distributing the compute load so that individual servers do not get overloaded with requests.

A repeater contains one input port and one output port, so it is capable only of receiving and repeating a data stream.

google is pretty good.

It is used by the receiving routers to request more information about any entry in the DBD.

"The RFC 1918 private network numbers are 10.0.0.0, Class Bs between 172.16.0.0 and 172.31.0.0 inclusive, and all Class C networks that begin with 192.168. All addresses that begin with 127 are reserved, but not as valid private IP addresses."

pc,cables,hub,