Networking

Networks play an important role in providing an efficient mechanism for sharing data within your company. Computer Software Solution & Networks, Inc. recognizes this fact and therefore designs and engineers each network to our client's specific needs. Efficient workflow, data integrity, security, and performance are factors that help formulate the design of our networks. Our wide range of network services include:

LAN and WAN Network Design, Engineering, & Installation Including Servers, Bridges, Routers, Hubs, and Cabling. Network Administration Services -- Remote or On-Site. Installation & Support of Novell and Windows NT Network Operating Systems.

Network Backup Systems including Digital Tape, Optical Disk, and Autochangers. Certification of network cabling systems to current EIA/TIA standards. Support and troubleshooting of network cable plants, servers, workstations and software.

NETWORK PROTOCOL
TCP/IP the family of protocols that defines the format of data packets sent across a network, and is the communication standard for data transmission
between different platforms. the TCP/IP consists of:

- Transport protocols -these protocols control data transmission between computers:

-TCP
-UDP
- Routing protocols-these protocols control addressing and packet assembly, and determine
the best route for a packet to take to arrive to its destination:
    -IP
    -ICMP
    -RIP
    -OSPF
    -Gateway protocols- these protocols enable networks to share and status information:
    -EGP
    -GGP
    -IGP
-Network address services and protocols - these services and protocols handle the way that each computer on a network is identified:
    -DNS
    -ARP
    -RARP
    -User services - these services provide applications a computer can use:
    - BOOTP
    -FTP
    -Telnet
    -Miscellaneous services:
    -NFS
    -NIS
    -RPC
    -SMTP
    -SNMP.              .

LAN

A local area network (LAN)is agroup of computers that share hardware and software resources at the same physical location.the most popular LAN type is Ethernet , A 10Base5 cable . When you interconnect a single computer to the pipeline with the crossover cable in your package,you are creating a two node Ethernet network, and network managers have new tools for linking their network together, in the form of wireless technology

Wireless LAN segments can be particularly useful in environments where cabling is difficult to implement, such as isolated warehouses, reception areas, and departments where work groups environments change frequently,today's wireless LANs use one of three transmission technologies: infrared, spread spectrum, or narrowband radio

WAN
A Wide Area Network which is a data network typically extended a LAN outside a building or beyond a campus, over a IXC or LEC lines to link to other LANs at remote sites, Typically created by using bridges or routers to connect geographically separated LANs.

BRIDGE

A device or setup that connects and passes data, voice, or video between two network segments, based on the destination field in the packet header, Ascend units are learning bridges, because they pass all packets to the next network segment (the ISDN line), and builds a table to identify the destination addresses that are local and remote. After learning the addresses on both sides of a network, the bridge passes only packets for the remote network

ROUTERS

An interconnection device that can connect individual LANs. unlike bridges, which logically connect at OSI layer 2, routers provide logical paths at OSI layer 3, but like bridges, remote sites can be connected using routers over dedicated or switched lines to create WANs.