Multiplex communications – Network configuration determination
Reexamination Certificate
1998-07-14
2003-11-25
Patel, Ajit (Department: 2664)
Multiplex communications
Network configuration determination
C709S220000
Reexamination Certificate
active
06654352
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a package growth/degrowth/shift method in an exchange and, more particularly, to a method of interactively setting operation data in a system at the time of a package growth/degrowth/shift.
ATM (Asynchronous Transfer Mode) technique is agreed in the ITU-T as an exchange system in the next generation, and it is being studied in various institutes as a technique for realizing a broadband ISDN (Integrated Service Digital Network).
FIG. 18
shows the structure of the speech path in an ATM exchange system. In
FIG. 18
, the reference numerals
11
11
to
1
1n
,
11
21
to
11
2n
,
11
31
to
11
3n
,
11
41
to
11
4n
represent line interface portions (line IF portions) connected to the corresponding lines (transmission lines). Each of the line IF portions
11
11
to
11
4n
extracts an ATM cell inserted into the payload portion of a frame signal (e.g., DS1-DS3 frame signal, SONET frame signal such as OC3C and OC12C), and outputs it to the multiplexers/demultiplexer after subjecting it to accounting, UPC processing and OAM processing, etc. Each line IF portion also inserts an ATM cell input from the multiplexers/demultiplexer into the payload portion of a frame signal, and transmits the frame signal to the transmission line. The reference numerals
12
1
to
12
4
denote the multiplexers/demultiplexers which are connected to the line interface portions, and which multiplex cells and demultiplex the multiplexed cells supplied from a switch, and transmits the cells to predetermined line interface portions. The reference numeral
13
a cell switch for switching the input multiplex cells to predetermined routes,
14
a system control unit (CC) for controlling the line interface portions
11
11
to
11
4n
, the multiplexers/demultiplexers
12
1
to
12
4
and the cell switch
13
. The system control unit
14
is provided with a processor (central processor unit CPU)
14
a
and a main storage (MM). The reference numeral
15
represents a maintenance terminal, and
16
a bus.
The cell switch
13
is connected to a plurality of multiplexers/demultiplexers
12
1
to
12
4
, switches a cell input from a multiplexer/demultiplexer on the basis of the routing information (tag information) attached to the cell, and outputs the cell to a predetermined multiplexer/demultiplexer. The multiplexers/demultiplexers
12
1
to
12
4
are connected to a plurality of line interface portions
11
11
to
11
1n
,
11
21
to
11
2n
,
11
31
to
11
3n
,
11
41
to
11
4n
, multiplex the upward cells input from the corresponding line interface portions and output the cells to the cell switch
13
. The multiplexers/demultiplexers
12
1
to
12
4
also demultiplex the downward cells input from the cell switch
13
and output the cells to the corresponding line IF portions.
The processor (CPU)
14
a
of the system controller
14
is capable of transmitting and receiving data to and from each of the multiplexers/demultiplexers
12
1
to
12
4
and the cell switch
13
.
FIG. 19
is an explanatory view of the communication paths between processors in the ATM exchange system. In
FIG. 19
, the reference numerals
11
11
to
11
1n
, . . .
11
N1
to
11
Nn
represent line interface portions (individual sections),
12
1
to
12
N
multiplexers/demultiplexers (common sections MIFCOM: Middle Interface Common), which are duplexed and provided with #0-equipments and #1-equipments
12
10
,
12
11
to
12
N0
and
12
N1
. The reference numeral
13
denotes a cell switch (CRSW: Cell Routing Switch), which is duplexed and provided with a #0-equipment
13
0
and a #1-equipment
13
1
. The reference numeral
14
represents a system control unit, which is duplexed and provided with a #0-equipment
14
0
and a #1-equipment
14
1
.
The #0- and #1-system control units
14
0
,
14
1
have the same structure. The reference numeral
14
a
represents a processor (CPU),
14
b
a main storage (MM),
14
c
a bus interface portion (BXC) for communicating between the processors of the #0-equipment
14
0
and the #1-equipment
14
1
,
14
d
a PAC (Processor Access Controller) for controlling the communication between the active (ACT)/standby (SBY) speech path device and the processor,
14
f
a selector (SEL) for selectively extracting a signal from the active speech path device and transmitting the signal to both the active and standby devices,
14
g
an SCSI controller (SCC) provided with an SCSI interface for controlling an optical disc drive (not shown), and
14
h
an Ethernet controller (ETC) which is connected to the maintenance terminal
15
(
FIG. 18
) as an interface.
The #0- and #1-cell switches
13
0
,
13
1
have the same structure. The reference numeral
13
a
represents a switch,
13
b
a PAC-SP (PAC-Speech Path) for controlling the connection of a path between PACs, and
13
c
a selector. The #0- and #1-common sections
12
10
,
12
11
to
12
N0
, and
12
N1
have the same structure. The reference numeral
12
a
represents a PAC device, and
12
b
a DMA controller (DMAC) for controlling the DMA communication between an individual section and a common section. The maximum number of the common sections
12
1
to
12
N
which can be connected to the cell switches
13
0
,
13
1
is 64, and the maximum number of the individual sections which can be connected to each common sections is 16. Accordingly, in the largest structure of the exchange system, the number of common sections is 64 and the number of individual sections is 1024 (64×16).
FIG. 20
shows a simplified structure of the exchange system shown in FIG.
19
. The same reference numerals are provided for the elements which are the same as those shown in FIG.
19
. In
FIG. 20
, the reference numeral
15
represents a maintenance terminal and
17
a magneto-optical disk drive (MOU).
FIGS. 21A and 21B
are explanatory views of the apparatus structure of an exchange system. An exchange is provided with a plurality of frames FR as physical equipments, each frame FR including plural layers of shelves SH, each shelf including a plurality of units UN, each unit including a plurality of cards CD, i.e., packages PWCB (Package wiring Circuit Board). There are various kinds of packages PWCB, for example, there are packages for DS1, packages for OC3C, packages for MIFSH (Middle Speed Interface Shelf), packages for HIFSH (High Speed Interface Shelf), and packages for CRSW (Cell Routing Switch).
Each equipment (frame, shelf, unit, card) is provided with an identification number (frame number f, shelf number s, unit number u, card number c) in correspondence with the position. It is therefore possible to specify the equipment which is arranged in an arbitrary position by combining these identification numbers. For example, it is possible to specify a card (package) by an identification number group f-s-u-c, and a shelf by an identification number group f-s. This number group is called an office equipment number (OE number). In an actual exchange shown in
FIG. 21B
, the equipment number (OE number) is represented by 10 decimal figures such as ffffffsuuc, wherein the first to sixth figures denote frame numbers ffffff, the seventh figure a shelf number s, the eight and ninth figures unit a unit number uu, and the tenth figure a card number c. Therefore, the OE number of the black package in
FIG. 21A
is represented by [0101012012], and the position of the package installed in the apparatus is specified by this OE number.
In this exchange system, there are cases where the function is raised by increasing the number of lines and a new function is added by increasing, the number of packages (package growth), replacing an old package by a new one, or shifting the position of a package (package shift). Sometimes, an unnecessary package is removed (package degrowth). In such a case, it is necessary to execute various processes such as installation of a new package/removal of an old package, input/delete of office data, set/delete of line data, and test/diagnosis so
Fujitsu Limited
Katten Muchin Zavis & Rosenman
Patel Ajit
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