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CHAPTER 3: NETWORK PLANNING
3.1 INTRODUCTION TO SWITCHING
A network switch allows simultaneous transmission of multiple packets; it can partition a network more efficiently than bridges or
routers.
When performance bottlenecks are caused by congestion at the network access point such as a file server, the device can be connected
directly to a switched port. Using full-duplex mode, the bandwidth of the dedicated segment can be doubled to maximize throughput.
When networks are based on repeater (hub) technology, the distance between end stations is limited by a maximum hop count. A switch
can subdivide the network into smaller and more manageable segments, and link them to the larger network so the hop count turns back
to zero and removes the limitation.
A switch can be easily configured in any Ethernet, Fast Ethernet, or Gigabit Ethernet network to significantly increase bandwidth while
using conventional cabling and network cards.
3.2 APPLICATION EXAMPLES
The Gigabit Managed Ethernet Switch has 8, 24, or 48 Gigabit Ethernet TP ports with auto MDI-X. The LGB1110A and LGB1126A-R2 each
have (2) dual-media ports, each consisting of (1) RJ-45 (100/1000 Mbps) and (1) SFP slot for a removable SFP module. The LGB1152A
has (4) SFP (100/1000) slots.
The switch is suitable for the following applications.
Remote site for Enterprise or SMB
Peer-to-peer for two remote offices
Office network
High-performance environment
Advanced security for network safety
Data/voice and video conferencing
