Friday, November 25, 2011

Networking Articles and Tips

Networking Articles and Tips

CCNA Practice Questions-1

Posted: 24 Nov 2011 11:30 PM PST

Q1 ) What is the Cisco Catalyst store-and-forward switching method ? Ans In this mode switches receives the entire frame before it forwards it. The switch reads the cyclic redundancy check (CRC) to make sure the frame is not bad. If the frame is good, the switch forwards it. Because the switch stores the frame before [...]


Troubleshooting TCP/IP

Posted: 24 Nov 2011 11:30 PM PST

1)   Analyzing traffic using network monitor Frame is an encapsulation of network interface layer (layer 2) data. Each frame contains source and destination computer addresses, header of the protocol used to send data and data itself. Packet is an encapsulation of internet layer (layer 3) data There are two versions of Network Monitor, the basic version [...]


Firewall Best Practices

Posted: 24 Nov 2011 11:30 PM PST

There should physical security for the firewall. Deny all the traffic and allow only those ports, protocols and services which are required. Services & software which are not specifically ......More


What is a Router

Posted: 24 Nov 2011 11:30 PM PST

A router (pronounced /’rautər/ in the USA and Canada, pronounced /’ru:tə/ in the UK and Ireland, or either pronunciation in Australia) is a networking device whose software and hardware are usually tailored to the tasks of routing and forwarding information. For example, on the Internet, information is directed to various paths by routers. Routers connect [...]


HSRP versus VRRP

Posted: 24 Nov 2011 11:30 PM PST

HSRP stands for Hot Standby Routing Protocol. This is a Cisco Proprietary protocol. VRRP stands for Virual Router Routing Protocol. VRRP is IEEE standard which can support multi Vendor.


Posted by at No comments:

Thursday, November 17, 2011

Networking Articles and Tips

Networking Articles and Tips

IPv6 Multicast Addresses

Posted: 17 Nov 2011 03:15 AM PST

IPv6 Multicast Addresses - You will find two primary types of Internet Protocol Version 6. That are defined as fixed scope and variable scope multicast addresses. The IPv6 multicast addresses are various from the unicast addresses due to the value of the high-order octet present within the addresses: the given worth [0xFF (binary 11111111)] gives [...]


Committed Information Rate (CIR)

Posted: 17 Nov 2011 03:15 AM PST

Committed Information Rate (CIR) – Within the frame relay network the (CIR) represents the average bandwidth for a circuit that an ISP provider has under normal circumstances with out any problem. In any condition or circumstances the bandwidth should not go below (CIR). Usually the bandwidth is defined in the terms of kilobytes/second. The CIR [...]


Frame Relay Local Management Interface (LMI)

Posted: 17 Nov 2011 03:15 AM PST

The Frame Relay has many various kinds of interface to monitor it and handle the situations. The management interface will be the further extension of the protocols which are included within the Frame Relay. These extensions help us to monitor the status of the Frame Relay network and keeping the future in the mind these [...]


Posted by at No comments:

Monday, November 7, 2011

Networking Articles and Tips

Networking Articles and Tips

Hijacking

Posted: 06 Nov 2011 11:45 PM PST

HIJacker A hijacker is an attempt from a third party to take control of one’s web browser and use it for their own evil purposes. Some browser hijacks could be carried out to spread awareness of a specific website, but aren't actually harmful. In some cases, though, they can be malicious, and they can steal [...]


How to improve wireless network’s signal strength

Posted: 06 Nov 2011 11:45 PM PST

This article shows you how to get probably the most from your network, by improving the signal. To start of, obstacles like thick walls, appliances, microwaves can greatly reduce the range and effectiveness of wireles networks but this issue can be remedied to a degree by tying together multiple wireless access points (WAPs) or routers. [...]


Wake on LAN

Posted: 06 Nov 2011 11:45 PM PST

A WOL (wake on lan ) request is used by a pc as a means of connecting to a pc that’s shut down. The computer will send specially formatted messages towards the intended computer which is identified by its MAC address and IP address. This job is achieved as even though the target machine is [...]


Posted by at No comments:
Subscribe to: Comments (Atom)