19 replies to this topic

[kitaserupa2000]

layer 3 switch pun ada maa..

[kureng]

tula psl..bende2 camni terlalu byk yg boleh disenaraikan..nanti xlalu nak bace
baik ko p cari kat google tu..abis citer..rerajinkanla diri anda..
activate urself wif google.com

[moff17]

layer 3 switch selalunye core switch.guna die utk menghubungkan semua switch yang ade.

[duan]

ok aku dpt dr http://www.practicallynetworked.com/networ...ridge_types.htm

Switches
Switches are the same thing as Bridges, but usually have multiple ports with the same "flavor" connection (Example: 10/100BaseT). 

Switches can be used in heavily loaded networks to isolate data flow and improve performance.  In a switch, data between two lightly used computers will be isolated from data intended for a heavily used server, for example.  Or in the opposite case, in "auto sensing" switches that allow mixing of 10 and 100Mbps connections, the slower 10Mbps transfer won't slow down the faster 100Mbps flow.

Although switch prices are dropping so that there is very little difference from hub prices, most home users get very little, if any, advantage from switches, even when sharing "broadband" Internet connections.  "Broadband" connections for most users are in the 1-2Mbps range, far below even 10Mbps speeds.  Since you share that bandwidth, you can see that your speedy 100BaseT connection isn't even breaking a sweat when you're using the Internet.

Router
Routers forward data packets from one place to another, too!  However routers are OSI model Layer 3 devices, and forward data depending on the Network address, not the Hardware (MAC) address.  For TCP/IP networks, this means the IP address of the network interface. 

Routers isolate each LAN into a separate subnet, so each network adapter's IP address will have a different third "octet" (Example: 192.168.1.1 and 192.168.2.1 are in different subnets.).  They are necessary in large networks because the TCP/IP addressing scheme allows only 254 addresses per (Class C) network segment.

Routers, like bridges, provide bandwidth control by keeping data out of subnets where it doesn't belong.  However, routers need to be set up before they can get going, although once set up, they can communicate with other routers and learn the way to parts of a network that are added after a router is initially configured.

Routers are also the only one of these four devices that will allow you to share a single IP address among multiple network clients.

http://www.tek-tips.com/gviewthread.cfm/le.../541/qid/148477.

In plain and simple english:

A hub is a totally dumb device.  If it gets a data signal, it just forwards it to everybody and hopes someone will pick it up.

A switch is just barely smarter.  If it gets a data packet, it will try and find the device it goes to, and then send it to that device only, but the device MUST reside on the same subnet.  A switch wont send data packets to computers on different subnets

A router is just barely smarter than a switch.  It only gets a data packet if the destination computer isnt on the same subnet or LAN.  The router then figures out where in the world that computer is located and then sends it in the right direction.

yg pertama tu byk sgt jargon n term, tapi yg kedua tu best, ringkas n mudah difahami....sekureng2nya aku phm
time kasey youzer coz bertanya..rajin jugak la aku nak mencariknya

[moff17]

buat pelah nak pakai router kalo nak connect dalam network je.buat habis duit. pakai layer 3 switch lebih elok berbanding dgn router kalo kes die cam ni. advantage : lebih cepat packet transfer dari layer 2 switch. router kalo ko ade WAN atau MAN sesuai la.
lagi satu kalao ade connection ke internet guna router.

[my979220]

camner hek kalo aku nak wat connection antara LAN dengan LAN lain ,bole guna switch tak??Camner nak configurr...??

tengok camna ko nak configur LAN tu.

Kalau dalam satu segment jer ko boleh stack switch, paling simple ambil satu patch cord sambung dari satu switch ke satu switch yang lain. (kalu UTP tak leh lebih dari 100m)

kalau nak sambung dalam different segment ko kena pakai layer 3 punya switch atau pun guna router.

[moff17]

betul ckp my979220 tu.router is for different segment. switch in same segment

[duan]

mmm... camne nak tau switch tu layer 3 swicth?
ada satu produk tu switch+router, adakah ianya layer 3 swicth?
..lagi satu, apa maksud lain2 segment?

[moff17]

itu senang je.ko cuba bukak www.cisco.com
search switch layer 3. selalunya switch layer 3 ni selalunya besar2. dan dia selalu ckp multiservice switch routers.
cth catalyst 8500 series

[moff17]

set betul2.kang tak jadi plak

[moff17]

gateway tak betul kot
ko set gateway kpd siapa. router ke pc?