Chapter 1 Getting to Know Your Switch
GS2210 Series User’s Guide
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as ATM at m uch low er cost w hile st ill being able t o use exist ing adapt ers and sw it ches. Mor eover,
t he curr ent LAN st r uct ur e can be r et ained as all por t s can fr eely com m unicat e w it h each ot her.
Figure 3
High Per for m ance Sw it ched Wor kgr oup Applicat ion
1.1.4 IEEE 802.1Q VLAN Application Examples
A VLAN ( Vir t ual Local Ar ea Net w or k) allow s a physical net w or k t o be par t it ioned int o m ult iple logical
net wor ks. St at ions on a logical net w or k belong t o one gr oup. A st at ion can belong t o m or e t han one
gr oup. Wit h VLAN, a st at ion cannot direct ly t alk t o or hear fr om st at ions t hat ar e not in t he sam e
gr oup( s) unless such t raffic fir st goes t hr ough a r out er.
For m or e infor m at ion on VLANs, r efer t o
1.1.4.1 Tag-based VLAN Example
Por t s in t he sam e VLAN gr oup shar e t he sam e fram e br oadcast dom ain t hus incr ease net w or k
per for m ance t hr ough r educed br oadcast t raffic. VLAN gr oups can be m odified at any t im e by
adding, m oving or changing por t s w it hout any r e- cabling.
Shar ed r esour ces such as a ser ver can be used by all por t s in t he sam e VLAN as t he ser ver. I n t he
follow ing figur e only por t s t hat need access t o t he ser ver need t o be par t of VLAN 1. Por t s can
belong t o ot her VLAN gr oups t oo.
Figure 4
Shar ed Ser ver Using VLAN Ex am ple
