Avaya a500 Guia Do Utilizador
Cajun A500 ATM Switch Overview
Cajun A500 ATM Switch User Guide
1-3
Cajun A500 Software
The Cajun A500 system software architecture, as shown in Figure , is comprised of the
following functional components:
Figure 1-1: Cajun A500 Software Architecture
U UNI Management Task (UNI mgmt task) manages the call control signaling
messages. These messages pertain to the calls terminated locally in the switch
control processor.
U Signaling Task sets up, maintains, and tears down connections used for control
information within an Cajun A500 system. These connections are used both for
Shortest Path First (SPF) messages and for connections enabling remote access to a
Cajun A500 via ATM.
U Routing Task computes and maintains neighboring system (neighbor)
connectivity and distributes the link state database.
U Switch Monitor Task manages overall Cajun A500 operation, including event
handling and statistic gathering, as well as the Operations And Maintenance
(OAM) of the PHY modules.
U Ethernet Driver initializes and monitors the Ethernet controller.
U SAR Driver reassembles incoming traffic to the switch processor and segments
outgoing traffic from the switch processor.
SA R
B U S
M A K E R
L
F
H
F
H
ETH ER
P
N
N
N
N
I
C A C
LEC
LA N E
IP
TC P
U D P
P
P
P
P
P
Telnet
TFTP
S
I
G
N
N
A
L
SWP