Avaya M-ACCF, User Manual, Page: 24 / 114

Chapter 1 Overview
8 Avaya M770 M-ACCF/SF ATM Access Modules User’s Guide
Figure 1.3 shows the various stages of the flush protocol:
Figure 1.3 The Flush Protocol.
Operation of the LAN Emulation
The following functions are performed by the LAN Emulation. The LAN Emulation
Clients (LEC) and the LAN Emulation Servers interact by way of a well-defined
interface (LUNI).
•
Connecting a LEC to an ELAN
• Address Registration
• Address Resolution
• Data Transfer
Connecting a LEC to an ELAN
The connection function of the LEC with the LAN Emulation Server (LES) includes
the following:
•
LECS connect phase in which a LEC establishes a configuration data-direct VCC
to the LECS (optional).
• The configuration phase in which the LEC discovers the LES.
• The join phase in which the LEC establishes its control connections to the LES.
The LEC may also implicitly register one MAC address with the LES.
• The registering by the LAN Emulation Client of any number of MAC addresses
and/or route descriptors.
• The establishment of a connection to the BUS by the LAN Emulation Client.
2. Data
1. Data
4. Flus
h_Req
6. Flush_Res
5. Flush_R
es
7. Data
Switch Data Path from
Multicast Send to
Data Direct using
Flush Protocol