參數(shù)資料
型號： IBM3209K3114
廠商： IBM Microeletronics
英文描述： IBM Packet Routing Switch Serial Interface Converter(IBM封裝路線選擇開關(guān)串行接口轉(zhuǎn)換器)
中文描述： IBM的分組路由交換機串行接口轉(zhuǎn)換器（IBM的封裝路線選擇開關(guān)串行接口轉(zhuǎn)換器）
文件頁數(shù)： 27/152頁
文件大小： 2390K
代理商： IBM3209K3114
IBM3209K3114
Advance
IBM Packet Routing Switch Serial Interface Converter
prssi.01
July 12, 2000
Functional Description
Page 17 of 142
32x32 Switch LU Output Format:
When the switch is in 32x32 mode, all bytes of the Bitmap are used (BM1, BM2, BM3, and BM4) for both port
addressing and to compute the header parity. When the switch is in 16x16 mode, only BM1 and BM2 are
used while BM3 and BM4 are considered as payload and are ignored for the computation of the header
parity. When the switch is in 08x08 mode, only BM1 is used while BM2 must be
’
00
’
so it does not impact the
computation of the parity in packet qualifier.
3.3.1.3 Port Addressing
The following table shows the switch output port addressing (a binary 1 in the bit map field indicates that the
packet should be sent to the corresponding switch output port).
3.3.2 Nested TxPause Extraction
In IBFC, The bits PQ (26,27 and 30,31) of the packet qualifier are monitored to extract the converter egress
flow control information (TxPause). The TxPause information is used by the PE to flow control the switch
’
s
output port. The converter interprets those bits and translates them into Sent Grant to the switch. The use of
TxPause is dependent upon the setting of register @C8 bit 30 of the configuration table register. When Bit 3
(Send Grant per Priority) of configuration register table @C4 is not enabled, any bit set to '0' in the TxPause
field is sufficient to stop transmission to the attached protocol engine.
Container
Master LU0
Slave LU1
Slave LU2
Slave LU3
C00
PQ
D
D
D
C01
BM1
D
D
D
C02
BM2
D
D
D
C03
BM3
D
D
D
C04
BM4
D
D
D
C05
D
D
D
D
C06
D
D
D
D
C07
D
D
D
D
C08
D
D
D
D
C09
D
D
D
D
C10
D
D
D
D
C11
D
D
D
D
C12
D
D
D
D
C13
D
D
D
D
C14
D
D
D
D
C15
D
D
D
D
Table 3: Output Port Bitmap Fields
UTOPIA-3 Bit Notation
7
6
5
4
3
2
1
0
IBM Packet Routing Switch/
DASL Bit
0
1
2
3
4
5
6
7
Output port bit map 1
Port 0
Port 1
Port 2
Port 3
Port 4
Port 5
Port 6
Port 7
Output port bit map 2
Port 8
Port 9
Port 10
Port 11
Port 12
Port 13
Port 14
Port 15
Output port bit map 3
Port 16
Port 17
Port 18
Port 19
Port 20
Port 21
Port 22
Port 23
Output port bit map 4
Port 24
Port 25
Port 26
Port 27
Port 28
Port 29
Port 30
Port 31
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