Panasonic 1200N manual Functional Blocks

Hardware SpecificationsHardware Configuration and Overview of Functions

Functional Blocks

A functional description of each functional block in the line card is shown in the following table.

Hardware	Block	Description of Functions
Line card	PHY	■	Conversion of physical media
			(e.g., E/O conversion, O/E conversion)
		■	Reception clock recovery
		■	Transmission clock generation
		■	Frame termination
		■	Cell alignment
		■	Speed conversion
		■ Line loop-back control
	MUX	■	Cell multiplexing/demultiplexing of multiple PHY
		■ Cell loop-back control
	ALT	■	SSO (Switch Specific Overhead) generation
			(reception side)
		■ Cell header conversion (transmission side)
		■	Policing control
		■ Flow monitor (e.g., passing cell count)
		■ OAM function (Fault Management)
	IXB	■	Cell storage buffer (32K cell buffer)
		■ QoS five-class (CBR, rt-VBR, nrt-VBR, ABR, UBR)
		■ Two-class cell loss priority control
		■ EPD (Early Packet Discard)
		■ BP (Back Pressure) reception control
		■	Congestion notification control
	OXB	■	Cell storage buffer (32K cell buffer)
		■ QoS five-class (CBR, rt-VBR, nrt-VBR, ABR, UBR)
		■ BP (Back Pressure) generation control
		■	Broadcast cell control
		■ ABR (ER control, binary mode)
		■	Congestion notification control
		■	Shaping

Centillion 1200N ATM Switch User Manual	4-7
NTP 297-8103-903