06-03-2013, 04:29 PM
ATM Networks
ATM Networks.ppt (Size: 177.5 KB / Downloads: 71)
ATM Network Building Block
The main building block of ATM networks is the ATM switch
Workgroup switch
Campus switch
Enterprise switch
Multi-service access switch
Work Group Switch
These switches will have Ethernet and ATM ports
Used for connecting Ethernet networks to ATM switches
Note: At the desktop level Ethernet still remains as the leading network technology
Campus Switch
Used for designing small-scale ATM backbones
Can be used for connecting various campus backbone technologies
FDDI
Gigabit Ethernet etc.
Enterprise ATM Switch
Used in building large enterprise backbones
Can be used for integrating different services and technologies on the backbone
Multi-Service Access Switch
A common ATM infrastructure can be used in a public network to support disparate services
Frame relay
LAN interconnection
Public ATM services
Their use usually extends beyond a private network to a public network
Used by service providers to connect MANs and WANs for example
Summary
ATM networks are basically built around ATM switches
ATM interfaces can be used for integrating disparate WAN technologies
At the desktop LAN, ATM can be used for emulating the traditional Ethernet environment for example
But, in general, the Ethernet technology is very popular in terms of ease of use and speed
Therefore, ATM at the LAN front is likely to be used for connecting Ethernet LANs to the backbone if the backbone is based on ATM
For the backbone and large public backbones, ATM is bound to become the technology of choice