Category: LAN/WAN
A local area network (LAN) is a computer network covering a small physical
area, like a home, office, or small group of buildings, such as a school, or an airport. The defining characteristics of LANs, in contrast to wide-area networks (WANs), include their usually higher data-transfer rates, smaller geographic range, and lack of a need for leased telecommunication lines.
Metropolitan area networks, or MANs, are large computer networksOptical fiber connections to link their sites. usually spanning a city.
Ethernet pin assignment and Cable Tester
Tweet Question : hi i’m using a cable tester that looks like this: http://hongmei.en.alibaba.com/product/200168769/51179510/Cable_Tester/Cable_Tester_468.html upon troubleshooting a straight cat5 utp cable using the said device,…
Packet is not passing, if it is bigger than 72 byte ?
Tweet Question : I got Juniper router(M series), and we got GigabitEthernet service for ISP. We saw BGP dropped and no passing traffic since in…
Spanning Tree Protocol Cost Value
Tweet Here is quick note of cost value of bandwidth for Spanning Tree Protocol(STP) If you want to controll STP in manual, you are better…
All Fiber Optic Connectors picture
Tweet Here is most common use fiber optics connector types
How IP helper-address works?
Tweet Here is brief information about ip helper-address. If your DHCP server is located remotely, your local DHCP client might not get IP address due…
Cisco Trunking Configuration Basic
Tweet More information will be added in short. Trunking Protocol – Form between Switch and PCs or Switch and Switch. – Tagging(VLAN ID) 1….
How VTP Pruning works
Tweet VTP pruning function use by reducing unnecessary flooded traffic, such as broadcast, multicast, unknown, and flooded unicast packets. VTP pruning save and increases available…
[Cisco] Port mirroring sample config
Tweet 1. New IOS source port 0/22 destinaiton port 0/21 Switch#config terminal Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#monitor session 1 source…
What is gratuitous ARP?
Tweet A gratuitous ARP is an ARP broadcast-type of packet that is used to makre sure that no other device on the network has the…
How to obtain Ethernet addresses
Tweet Local NICs: Window 9x – Run the program "winipcfg.exe" Windows NT & Windows 2000 – Run the program "ipconfig.exe /all" Linux – Run the…
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