Linking most switches is very easy -- just run a straight through (normal) cable on one port of one switch to a port on the other switch. Done!
Switches / Bridges and hubs work at data link layer, but there are layer three switches which operate at network layer. Dhruv
bridges, Switches and NIC..
so if your fat you don't get stuck!
• Access link: An access link is a link that is part of only one VLAN, and normally access links are for end devices. Any device attached to an access link is unaware of a VLAN membership. An access-link connection can understand only standard Ethernet frames. Switches remove any VLAN information from the frame before it is sent to an access-link device.• Trunk link: A Trunk link can carry multiple VLAN traffic and normally a trunk link is used to connect switches to other switches or to routers. To identify the VLAN that a frame belongs to, Cisco switches support different identification techniques (VLAN Frame tagging). Our focus for CCNA examination is on Inter-Switch Link (ISL) and 802.1Q.A trunk link is not assigned to a specific VLAN. Many VLAN traffic can be transported between switches using a single physical trunk link.
See related link
A trunk
dynamic auto - dynamic auto
qos, link aggregation
You will need two 3/way switches and two 4/way (Intermediate) switches. Click the link to see a video of exactly how to wire such a circuit.
Technology wise there is no such difference.
nic work on data link layer which is layer 2
Not really - they operate at the Data Link layer using the MAC address and therefore don't really segment a network. There are some managed switches that can do this or by using VLAN configurations, but ordinary switches will not really segment a LAN.