Alcatel Carrier Internetworking Solutions 6648 - Manual (Page 365)

Hardware Buses on OmniSwitch 7700/7800/8800 Switches
OmniSwitch Troubleshooting Guide September 2005 page -41
Hardware Buses on OmniSwitch 7700/7800/
8800 Switches
Xybus
The interface between the MAC to Coronado, which is 0-1
Fbus
The interface between the Coronado to the Fabric ASIC (Nantucket or Roma). For the OmniSwitch 7700
(Falcon half chassis) it is 0-7. For the OmniSwitch 7800 (Falcon full chassis) it is 0-15. For the
OmniSwitch 8800 (Eagle) it is 0-63.
Bbus
This the management bridge bus connecting the CMM sand NIs. It is a single bridge bus.
8
DA is STP multicast
(BPDU)
S/W
QID for
flood or
drop ReQID for
S/W
processing
BPDU