IBM3229P2035
IBM Packet Routing Switch Serial Interface Converter
Advance
Figure 1: Overall Switch Subsystem Configuration
Active
Switch
Ingress IBM Packet Routing Switch
Serial Interface Converter
Egress IBM Packet Routing Switch
Serial Interface Converter
C
Ingress
Protocol
Engine
Egress
Protocol
Engine
Dup
C
Mux
C
Duplicated Packets
Duplicated Packets
Protection
Switch
C: Checker
Figure 2: IBM Packet Routing Switch Serial Interface General Data Flow
Protocol Engine
Interface
Packet
Packet
Interfacing
DASL Ports
Reshuffling
Buffering
DASL Macro
IBM 28.4 G
Packet
Ingress DASL
Interface:
Receive DASL
Interface - X
X RX FIFO
RX_Enable
Synch/Idle/Yellow
LU Serializer
CRC Insert
Routing
Switch
Elements
X Plane
Memory Grant-X
Ingress
LU Framing
Parity Checking
Ingress PE
Interface
O
Backpressure
Serial Link
Ingress DASL
Interface:
Synch/Idle/Yellow
LU Serializer
CRC Insert
Memory
Grant
Receive DASL
Interface - Y
Y RX FIFO
Grant Control
Generation
O
SM0
Memory Grant-Y
Protocol
Engine
X In Service
Y In Service
Output Queue
Grant
Sel
Utopia-3
Egress DASL
Interface
Header Extraction
LU Deserializer
CRC Check
O
Transmit DASL
Interface - X
X TX FIFO
32-bits
125 MHz
Interface
TX Framing
Header Handling
Idle Generation
Egress PE
Interface
Mux
Send Grant_X
Egress DASL
Interface
Header Extraction
LU Deserializer
CRC Check
TXFULL
Y TX FIFO
TxPause
Extraction
Transmit DASL
Interface - Y
IBM 28.4 G
Switch
Routing
Switch
Send Grant_Y
Elements
Y Plane
PLL-X
Shared DASL
Controller X
Microprocessor
Interface
DASL
JTAG/LSSD
µProcessor
PLL-Y
General Information
Page 14 of 154
prssi.02.fm
March 1, 2001
IBM [ IBM ]
