Avaya M-ACCF/SF Manuel D’Utilisation

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Chapter 2
Applications
Avaya M770 M-ACCF/SF ATM Access Modules User’s Guide
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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.