My Netwok Dictionary

Storage and shipping:

The switch must receive the complete frame before sending it to the port. Read the destination MAC address, it checks the CRC (cyclic redundancy counter used in the frames sent to verify errors), applies the corresponding filter and relays. If the CRC is incorrect rule out the plot. The shipping delay or latency is usually higher because the switch must store the full story, check it and then send it to the corresponding segment.

Cutting Method:

The switch checks the destination MAC address received as the head of the plot, and immediately begins to send the frame. The disadvantage of this mode is that the switch might broadcast a network of collision or a frame with an incorrect CRC value, but very low latency. Read the rest of this entry »

For the initial configuration of the Switch using the console port connected to a console or rollover cable and RJ-45 to DB-9 COM1 port to connect to the computer. This must have a terminal emulation software such as HyperTerminal.

The configuration parameters are:

• The appropriate COM port
• 9600 baud
• 8 data bits
• No parity
• 1 stop bit
• No flow control Read the rest of this entry »

To achieve connectivity through a VLAN trunk between switches, the VLAN must be configured on each switch.

The VLAN Trunking Protocol (VTP) provides a simple means of maintaining a consistent VLAN configuration throughout the switched network. VTP allows switched network solutions easily scalable to other dimensions, reducing the need for manual configuration of the network. Read the rest of this entry »

• Bus Topology

Advantages
easy to install
easily expandable
short lines

Disadvantages
Network size is limited
case of cable break falls from power
complex access methods

• Ring Topology

Advantages
distributed control
large network expansion

Disadvantages
extensive troubleshooting
Troubleshooting network failure
high wiring

• Star topology

Advantages
simple networking
simple extension
high reliability

Disadvantages
high wiring
Power failure in case of failure or overload of the stroke

• Mesh topology

Advantages
decentralized control
infinite network expansion
high reliability

Disadvantages
consuming administration
expensive and high-quality networking

When configuring VTP mode is important to choose appropriate as VTP is a very powerful tool and can create problems in the network. In a single domain VTP VLAN information configured on the server is transmitted to all clients

VTP operates in three modes:

• Server mode

• Client mode

• Transparent mode Read the rest of this entry »