Avaya M-ACCF/SF manual Network Configuration Examples, ATM Backbone in the Building

Chapter 2 Applications

Network Configuration Examples

This Section provides examples of possible network configurations using the M-ACC module. If you are unfamiliar with ATM, see the Section, entitled Planning Your Network.

ATM Backbone in the Building

An example of an ATM backbone within a single building, is shown in Figure 2.1.

In this case, the Ethernet Switch on each floor is provided with a high speed

(622 Mbps) full duplex link to the backbone. Using ATM as a backbone technology removes bottlenecks by providing scalable bandwidth, low-latency, high-speed data switching.

Ethernet VLANs can be extended into the ATM network using Emulated LANs (ELANs). Ethernet packets are then switched between Ethernet to ATM transparently.

As well as providing a fast switched backbone between Ethernet LANs, ATM equipped file servers and services may be directly attached to the ATM network; giving improved performance to the Ethernet desktop.

Further advantages are gained in multi-media applications, due to ATM’s built-in quality of service.

Figure 2.1 shows ATM link redundancy between the M-ACC module in the Avaya M770 multifunction and Avaya P550 switches and another Avaya M770 Switch.

The lowest Avaya M770 Multifuntion switch includes OC-3 and OC-12 M3-622 and M15-155 ATM modules, an M-MLS Routing module and 32-port M32-100T Fast Ethernet modules.

Avaya M770 M-ACCF/SF ATM Access Modules User’s Guide 31