Monday, June 23, 2014

Difference Between Switch and Bridge

What is the Difference Between Switch and Bridge in Networking


 Switches are available in both manageable and non manageable. Bridges are available only in non manageable

Number of ports are more than bridgeNumber of ports are less than switch

They can have separate spanning tree for  each VLANs in the switchThey can have only one spanning tree instance per bridge.

Large frame buffersLow frame buffer

Switches are Hardware based, perform forwarding in hardwareBridges are software based, perform forwarding in software

Switches were just the next step which eliminated the collision domain completelyBridges were historically used to reduce the size of collision domain created by hubs

Supports cut-through switchingDoesn't supports cut-through switching

 A switch is a network access device that provides a centralized point for LAN communications,media connections and management activities-like Hub. A bridge is an inter networking device used to contact separate LAN's or link two network segments, and to filter information between them as well as traffic collisions, and other network problems.

putty as HyperTerminal in Windows Vista/ Windows 7

How to use putty as HyperTerminal in Windows Vista/ Windows 7

In this post I covered how to use Putty as HyperTerminal in Windows Vista or Windows 7 machines. HyperTerminal is no longer part of Windows Operating systems. There are several options you can use to replace its functionality. Earlier I covered how to use XP HyperTerminal client in Windows Vista orWindows 7.

Download Putty:

Download and use open source Putty terminal software.
You can get Putty and click here for  Download.

For Laptops:

1. First install DB 9 to USB converter drivers in your Laptop. Plug in your console cable to Cisco router, connect other end to DB9 to USB converter and plug in USB in your Vista or Windows 7 Laptop.

2. Now, you have to check the communication port (COM port) number from Computer Management (Start –> Control Panel –> Administrative Tools –> Computer Management –> Device Manager and look at Port (COM & LPT).

For Desktops:

3.      Plug in Console cable in Cisco Router or Switch and connect other end in COM 1 or COM 2 port on Desktop machine.

Configure Putty with Console Settings:

4.      Start Putty by double clink on it and configure HyperTerminal settings by visiting Category-> Connection->Serial from left side.
For Cisco Router or Switch follow below console port settings:
Bits per Second –> 9600
Data bit –> 8
Parity –> None
Stop bit–> 1
Flow control –> None
Putty Serial Settings
Putty Hyperterminal Settings

Start putty:

6. To start putty select category-> session ->serial and click on open, It will open the device in separate window and enter login credentials to access the device.
Putty Serial Login
Putty Serial Login

Putty Login
Putty Login

Other options for hyperTerminal software in Windows Vista/ 7

  • TeraTerm Pro open source terminal
  • HyperTerminal Private Edition version 6.3
  • If you have an old Windows XP installation, find and copy the file named “hypertrm.dll” and “hypertrm.exe” to Windows Vista in the same location. Run hypertrm.exe from run > cmd.
from: ciscoconsole website