Alcatel Carrier Internetworking Solutions 6648 - Manual (Page 328)

The MAC ASIC
page -4 OmniSwitch Troubleshooting Guide September 2005
Firenze
The Firenze basically provides three functions: Media Access Control (MAC) Layer functions, Data buff-
ering, Flow Control and statistics accumulation and storage for each port.
Firenze handles up to six Ethernet interfaces that can support independently either 10 or 100 or 1000 Mbit/
s throughput using independently either TBI or GMII interfaces.
The Firenze Based GNI is a 1Gbps Ethernet Switching Module for the Falcon system. Two Versions of
the board are configured as below:
• GNI-U12, 12-port fiber Gigabit module equipped with twelve Pluggable SFP Transceivers which can
support short, long and very long haul applications.
• GNI-C12, 12-port copper Gigabit module equipped with twelve RJ45 connector, individually config-
urable as 10/100 or 1000 Base-T.
The Firenze based GNI modules for Eagle OS-8800 are as follows:
• OS8-GNI2-C24, 24-port copper Gigabit module equipped with Twenty four RJ45 connector compati-
ble with cat5 or cat5e minimum cabling specification. Due to the use of Ten-Bit Interface
• TBI between the PHY and Firenze, the ports are limited to 1000BASE-T speed only.
• GNI2-U24, 24-port fiber Gigabit module equipped with Twenty four Pluggable SFP Transceivers.
Coronado
Firenze 0 Firenze 1
...
...
6 Gigabit ports 6 Gigabit ports
XY-BUS
F-BUS