Filter
Top Products
ATM Backbone SwitchModule Architecture
1-5
The significant hardware components of the ATM Backbone
SwitchModule include:
■
Management Processor
■
Packet Switch Processor
■
Primary ATM OC-3 Card
■
Redundant ATM OC-3 Card
Management
Processor
The Management Processor performs processing functions that are not
time critical. Its main functions include:
■
Network management
■
ATM signalling
■
ATM LAN emulation client (LEC) functions
■
Bridging functions
■
Forwarding table maintenance
Packet Switch
Processor
The Packet Switch Processor performs time-critical processing functions
such as packet forwarding.
Primary ATM OC-3
Card
The primary ATM OC-3 card provides a SONET PHY ATM interface
operating at 155 Mbps on OC-3, multimode fiber over an SC-type
connector. The maximum distance between links is 2 kilometers.
Redundant ATM OC-3
Card
The redundant ATM OC-3 card is identical to the primary ATM OC-3
card. It becomes active in place of the primary ATM OC-3 card if any of
the following characteristics are lost:
■
Light
■
Frame
■
Cell delineation
■
ATM signalling
■
ILMI (Integrated Local Management interface) channel information