H.323 and SIP are specifically known for the IP signalling standards. The H.323 and SIP describe multimedia communication systems and protocols. These protocol suites differ in many ways. Essentially, H.323 is derived by ITU before the advent of SIP while SIP is acknowledged by IETF standard. IP telephony (Voice over IP) was evolved to implement cost savings, which actually produces from regulative taxes levied on long distances voice calls. This type of additional charge is not pertinent to … [Read more...]

LAN (Local Area Network) is a collection of network devices which employ the communications between the connected devices. Similarly, VLAN (Virtual LAN) is a type of LAN which enhances the capabilities of a flat LAN. Now, how these can be differentiated? There are major differences between LAN and VLAN such as LAN work on single broadcast domain while VLAN works in a multiple broadcast domain. VLAN can combine the end station having similar requirement irrespective of their physical location … [Read more...]

PCM and DPCM are the procedures used for transforming analog signal into digital. These methods are different as the PCM represents sample value by code words whereas in DPCM the original and sample values depend on previous samples. The conversion of analog-to-digital signal is beneficial for many applications because the digital signals are less susceptible to noise. The digital communication system provides better performance, reliability, security, efficiency and system integration. PCM … [Read more...]

An Ethernet is primarily a group of LAN technologies which are covered in IEEE 802.3 u standard. The ethernet is easily maintained and managed and considered to be low-cost network implementation solution. It comes in three variations, 10Base-T ethernet, fast ethernet and gigabit ethernet. The main difference between fast ethernet and gigabit ethernet is the contradicting speed where fast ethernet provides at maximum 100 Mbps of data transmission speed whereas gigabit ethernet offers high-speed … [Read more...]

Subnetting is the technique of partitioning a large network into smaller networks. On the other hand, the supernetting is the method used for combining the smaller ranges of addresses into larger space. Supernetting was devised to make the routing process more convenient. Additionally, it reduces the size of routing table information so that it could consume less space in the router's memory. The well-defined method for the subnetting is FLSM and VLSM while for supernetting CIDR is … [Read more...]

The SAN and NAS are the information storage techniques which are often mixed with one another because of alike acronyms. These can be differentiated by the fact that SAN (Storage Area Network) shares the storage to the dedicated network whereas NAS (Network Attached Storage) share the storage over a shared network. SAN uses block storage. Conversely, NAS uses the file system. These storage techniques were devised to fulfil the purpose of storing, protecting and managing the magnificent amount … [Read more...]

A topology is a relationship exist between the links and linking devices (nodes) to each other which is represented by a geometric representation. Star and Ring topology are the types of network topologies. The crucial difference between star and ring topology is that the star topology is suitable for a primary-secondary type of connection whereas ring topology is more convenient for the peer-to-peer connection. The link is shared equally in the peer-to-peer connection. Inversely, in a … [Read more...]

The major difference between OSPF and BGP is that the OSPF is an intradomain routing protocol while BGP is the interdomain routing protocol. The OSPF protocol uses link state routing. On the other hand, BGP protocol uses path vector routing. The routing operations performed inside an autonomous system is known as intradomain routing or interior gateway routing and when the routing is performed between two autonomous systems, it is referred to as interdomain routing or exterior gateway … [Read more...]

Routing is the mechanism of transferring information from a source to destination across an internetwork. The distance vector routing and link state routing are the two of routing algorithms, categorised depending on the way the routing tables are updated. The prior difference between Distance vector and link state routing is that in distance vector routing the router share the knowledge of the entire autonomous system whereas in link state routing the router share the knowledge of only their … [Read more...]

The baseband and broadband are the types of signalling techniques. These terminologies were developed to categorise different types of signals depending on particular kind of signal formats or modulation technique. The prior difference between baseband transmission and broadband transmission is that in the baseband transmission the whole bandwidth of the cable is utilized by a single signal. Conversely, in the broadband transmission, multiple signals are sent on multiple frequencies … [Read more...]