JPH10224421A - Line configuration method in transmission equipment - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To increase the line capacity of a network for providing a video-on-demand service or the like without replacing a transmission device itself. SOLUTION: As a redundant configuration shown in FIG.
Lines 102A and 102C are set as work lines,
Lines 102B and 102D are set as protection lines. In the non-redundant configuration shown in FIG. 3B, not only the lines 102A and 102C but also the lines 102B and
02D is also set as a work line. In this case, the SW 104 includes not only the termination circuits 103A and 103C but also the termination circuits 103B and 103D.
Is set to connect to As a result, as shown in FIG. 3A, the line 102, which is normally used as a protection line, is set as a work line, thereby realizing an additional line in the transmission apparatus 101.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technology for increasing the line capacity of a network for providing a video-on-demand service or the like.

[0002]

2. Description of the Related Art In a network providing a video-on-demand service or the like, traffic in a direction from a server to a subscriber may increase as the number of subscribers increases. Therefore, the transmission device constituting such a network needs to be configured to be able to cope with an increase in the line capacity.

Conventionally, in order to increase the line capacity of a transmission device constituting a network, it has been necessary to replace the transmission device itself as shown in FIG. 11, for example.

[0004]

Therefore, conventionally, there is a problem that the cost for replacing the transmission device itself is high, and the system upgrade is easily affected by a delay in the development of a new transmission device. Was.

An object of the present invention is to make it possible to increase the line capacity without replacing the transmission device itself.

[0006]

According to the present invention, a terminating circuit (terminating circuit 103) for forming a network and terminating each network-side line (network-side line 102), which is a line on the network, and each of the terminating circuits are provided. Connection circuit (SW1) connected to the subscriber line (subscriber line 106)
04, TSA 105) in the transmission device (transmission device).

A first aspect of the present invention has the following configuration. First, the termination circuit installed as a working system and all or a part of the termination circuit installed as a standby system,
Both have first setting means (control unit 201, terminal 202) for setting operation as an active system.

Next, a second setting means (control unit 20) for setting, for the connection circuit, connection of a terminating circuit set to operate as the working system to each subscriber line.
1, terminal 202).

[0009] Each network-side line on the network is accommodated as a working line in a terminating circuit set to operate as a working system. With the configuration of the first aspect of the present invention described above, it is possible to easily realize the setting of the line according to the traffic usage in the transmission device.

A second aspect of the present invention has the following configuration. First, in a redundant configuration in which the working terminating circuit and the protection terminating circuit are mixed, all or some of the unused terminating circuits are newly added while the line state of the operating terminating circuit is maintained. Has first setting means (control unit 201, terminal 202) for setting operation as an active system.

Next, a second setting means (control section 201, control section 201, control section 201) for setting the connection circuit to connect the terminating circuit newly set to be operated as the working system to each subscriber line. Terminal 202).

[0012] Each network side line on the network is accommodated as a working line in a terminating circuit newly set to operate as a working system. According to the configuration of the second aspect of the present invention described above, even when a request to increase the traffic usage occurs while the transmission apparatus is operating, the line is maintained while the operating line state is maintained. Extension (in-service upgrade) can be easily realized.

Here, the first and second setting means in the configuration of the first or second aspect of the present invention are a terminal device (terminal 202) connected to the outside of the transmission device, and a terminal device (terminal 202) inside the transmission device. A control circuit (control unit 201) installed in the terminal to establish an interface between the terminal device and the termination circuit and the connection circuit
And can be configured to include

With such a configuration, the user can easily upgrade the transmission device using the human-machine interface based on the operation of the terminal device.

[0015]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a basic configuration diagram (part 1) of an embodiment of the present invention.

In the transmission apparatus 101, four terminating circuits 103A, 103B, 103C and 103D are connected to network side lines 102A, 102B and 102, respectively.
C and 102D.

When a redundant configuration (work / protection configuration) is set, the switch circuit (SW) 104 normally includes a work system (a portion indicated by a symbol W in the drawing) and a protection system (a symbol in the diagram). (Portion indicated by P). In FIG. 1, a line to be used is selected from the network-side lines 102A and 102B, and similarly, a line to be used is selected from the network-side lines 102C and 102D, and the selected lines are connected to the TSA 105. Perform the following processing.

Time slot assigner circuit (TSA) 1
05 performs a process of connecting the output of the SW 104 to the subscriber line 106. Next, FIG. 2 is a basic configuration diagram (part 2) of the embodiment of the present invention.

The transmission apparatus 101 has a control unit 201 for connecting an external terminal 202 and terminating an HMI (Human Machine Interface) in addition to the components shown in FIG.

In order to realize the above functions, the control unit 201
Analyzes the provisioning information transmitted from the terminal 202, and sets information for changing the line configuration in each of the terminating circuits 103, the SW 104, and the TSA 105 in the transmission apparatus 101.

According to the basic configuration shown in FIGS. 1 and 2, in the present embodiment, the user can execute the provisioning of the system configuration of the transmission apparatus 101 from the terminal 202 by using the HMI, and thereby the transmission can be performed. The line configuration of the device 101 can be changed.

Then, each network side line 102A-
Regardless of whether the 102D is changed to a work line or a protection line, they are changed to SW104 and TSA10.
5 enables connection to each subscriber side line 106.

These are the major features related to the present invention. Next, FIG. 3 illustrates a line configuration example (part 1) of the transmission apparatus 101 based on the basic configuration of the present embodiment in FIGS. 1 and 2.
FIG.

In FIG. 3, first, the network side line 102A
/ Termination circuit 103A and network side line 102B / termination circuit 103B in group 1 (GP1), network side line 102C / termination circuit 103C and network side line 102D / termination circuit 103D in group 2 (GP2)
I will call it.

Now, as shown in FIG. 3A, as a redundant configuration, the network-side lines 102A and 102C are set as working lines (work lines), and the network-side lines 102B and 102D are set as protection lines (protection lines). It is assumed that it is set as In this case, SW10
4 is set so as to connect the terminating circuits 103A and 103C to the TSA 105. That is, in FIG. 3A, a work / protection configuration, which is a redundant configuration, is set for each of the groups GP1 and GP2.

In the present embodiment, the line configuration of the transmission apparatus 101 can be set to the configuration shown in FIG. 3B instead of the configuration shown in FIG. In the configuration shown in FIG. 3B, the network side lines 102A and 102C
Not only the network side lines 102B, 102D
Is also set as a work line. In this case, SW
104 is not only the termination circuits 103A and 103C,
Termination circuits 103B and 103D are also set to connect to TSA 105. That is, in FIG.
In both 1 and GP2, a work / work configuration is set for those groups.

As described above, in the present embodiment, FIG.
By setting the network side line 102, which is usually used as a protection line, as a work line, it is possible to easily increase the number of lines in the transmission apparatus 101 as shown in FIG. This is a feature related to the present invention.

Further, in the present embodiment, the transmission device 101
Of the line configuration shown in FIG. 3A and the line configuration shown in FIG.
By performing provisioning of the system configuration of the transmission apparatus 101 using the HMI from the terminal 202 connected to the terminal 1, the switching can be arbitrarily performed. This is also a feature related to the present invention.

FIG. 6 is a diagram showing an operation flow (1) for realizing the provisioning. First, the user sets the network configuration (the line configuration of the transmission apparatus 101) to the redundant configuration (work (work) / backup (protection)).
Or a non-redundant configuration (working (work) / working (work)) is selected (step 601).

When the user selects the redundant configuration (corresponding to FIG. 3A), the user confirms whether the states of the network-side lines 102A to 102D connected to the transmission apparatus 101 are the same (step S1). 601 → step 602).

Each network side line 102A-102D
If the states are not the same, the respective line states are made the same by the provisioning setting from the terminal 202 (step 603).

After the setting in step 603, or when the state of each of the network-side lines 102A to 102D is the same, the user sets each terminal circuit 1 through the control unit 201 by the provisioning setting from the terminal 202.
A redundant configuration is set for 03A to 103D (step 604).

Finally, the user controls the SW 104 and the TSA 105 from the terminal 202 via the control unit 201 to connect the line set as the work system among the network lines 102 to the subscriber line 106. (Step 607).

On the other hand, when the user selects the non-redundant configuration (corresponding to FIG. 3B), the provisioning is set from the terminal 202 to each of the terminating circuits 103A to 103D via the control unit 201. , A non-redundant configuration is set (step 601 → step 605).

Furthermore, the user individually sets various control parameters for each of the termination circuits 103A to 103D via the control unit 201 by the provisioning setting from the terminal 202 (step 606).

Finally, the user controls the SW 104 and the TSA 105 from the terminal 202 via the control unit 201 to connect the line set as the work system among the network lines 102 to the subscriber line 106. (Step 607).

In the above system configuration example, the terminal 20
2 to the transmission apparatus 101 can be executed only for the system corresponding to the network-side line 102 that is changed from the protection line to the work line, and thereby the line state on the work line can be changed. It is possible to add lines (in-service upgrade) while maintaining them.

Next, FIG. 4 or FIG. 5 is a diagram showing an example (No. 2 or No. 3) of the line configuration of the transmission apparatus 101 based on the basic configuration of the present embodiment of FIG. 1 and FIG. Now, FIG.
As in the case of (a), as shown in FIG. 4 (a) or FIG.
And 102C are set as working lines (work lines),
It is assumed that the network-side lines 102B and 102D are set as protection lines (protection lines). In this case, the SW 104 sets the termination circuits 103A and 103C to T
It is set to connect to SA105. That is,
In FIG. 3A, a work / protection configuration, which is a redundant configuration, is set for each of the groups of GP1 and GP2.

In this embodiment, the line configuration of the transmission apparatus 101 is changed from the configuration shown in FIG. 4 (a) or FIG. 5 (a) to the configuration shown in FIG. 4 (b) or 5 (b). Can switch.

In the configuration shown in FIG. 4B, not only the network-side lines 102A and 102C but also the network-side line 102D is set as a work line, and the network-side line 102B is maintained as a protection line. In the configuration shown in FIG. 5B, not only the network-side lines 102A and 102C but also the network-side line 102B is set as a work line, and the network-side line 102D is maintained as a protection line.

As described above, in the present embodiment, the terminal 20
As shown in FIG. 4 (a) or FIG. 5 (a), it is possible to individually switch any line of the network side line 102 normally used as a protection line to a work line by the provisioning setting from FIG. it can.
This is a feature related to the present invention.

FIG. 7 is a diagram showing an operation flow (part 2) for realizing the provisioning. This operation flow specifically realizes steps 605 and 606 of the operation flow of FIG.

First, the user selects a network side line 10 set as a work line in a group (GP2 in FIG. 4A or GP1 in FIG. 5A) whose line configuration is to be changed.
2 (FIG. 4 (a) network side line 102C or FIG.
It is determined whether or not the network side line 102A of (a) is actually used (step 701).

When the network side line 102 set as the work line is actually used in the group whose line configuration is to be changed, the user sends a signal from the terminal 202 to each terminal circuit 103 via the control unit 201. The network side line 102 set as the protection line in the group whose line configuration is to be changed by the provisioning setting (the network side line 102 in FIG. 4A).
D or the network side line 102B in FIG. 5 (a) is changed to the working line (work line) (step 701 → step 702).

Further, the user sets the termination circuit 103 (the termination circuit 103D in FIG. 4B or the termination circuit 103D in FIG. 5B) corresponding to the network side line 102 changed from the protection line to the work line by the provisioning setting from the terminal 202.
Various specific control parameters are set for the termination circuit 103B) of (b) (step 703).

Lastly, the user controls the SW 104 and the TSA 105 from the terminal 202 via the control unit 201 to change the network side line 102 changed from the protection line to the work line to the subscriber side line 10.
6 (step 704).

On the other hand, a network side line 10 set as a work line in a group whose line configuration is to be changed.
If 2 had not been used before, the user
Each terminal circuit 103 from the terminal 202 via the control unit 201
Activate the network side line 102 which is reserved as a work line in the group whose line configuration is to be changed by setting the provisioning to (step 701 → step 705).

Further, the user sets specific various control parameters for the termination circuit 103 corresponding to the network side line 102 activated as the work line by the provisioning setting from the terminal 202 (step 706).

Finally, the user controls the SW 104 and the TSA 105 from the terminal 202 via the control unit 201 to connect the network side line 102 activated as a work line to the subscriber side line 106 (step 707).

In the above system configuration example, as in the case of FIG. 3, the provisioning setting from the terminal 202 to the transmission apparatus 101 is performed only for the system corresponding to the network side line 102 which is changed from the protection line to the work line. This allows the line to be added (in-service upgrade) while maintaining the line state on the work line up to now.

FIG. 8 is a diagram showing an example of an operation screen of the terminal 202 when provisioning of a system configuration (line configuration) from the terminal 202 to the transmission apparatus 101 is executed.

First, the user can display the line configuration (system configuration) of the transmission apparatus 101 by inputting a command shown as 801 in FIG. Specifically, for example, by inputting the above command, the system configuration is set to the TERM configuration (80 in FIG. 8A).
2) It is displayed that a redundant configuration (work / protection configuration) using a line called OC12 with a line rate of 600 Mbps is used. These display examples are
This corresponds to the line configuration of the transmission apparatus 101 shown in FIG.

Further, the user can change the line configuration (system configuration) of the transmission apparatus 101 by inputting a command shown as 804 in FIG. More specifically, for example, by inputting the command, the redundant configuration (work / protection configuration) using the OC12 line is changed to the non-redundant configuration using the OC12 line (configuration in which all the lines are set as the work line: 4W configuration) ) Is instructed.

Then, the user at the terminal 202
By inputting a command shown as 805 in FIG. 8B from the keyboard, the line configuration (system configuration) of the transmission apparatus 101 can be displayed again. Specifically, for example, by inputting the command, a new system configuration such as a TERM configuration (806 in FIG. 8B) and a 4W configuration using an OC12 line are displayed. These display examples are shown in FIG.
This corresponds to the line configuration of the transmission apparatus 101 shown in (b).

FIG. 9 shows the TSA 105 in the transmission apparatus 101.
FIG. 3 is a diagram showing an example of an address map of data specified in provisioning for the data and an example of setting data. FIG.
In (a), each of the four address sets corresponds to four terminating circuits 103A to 103D, and the first address area of each set has a corresponding terminating circuit 103A.
Is a setting area of the provisioning data when set as the work system, and the second address area of each set is a setting area of the provisioning data when the corresponding termination circuit 103 is set as the protection system. Then, setting data for each system configuration shown in FIG. 9B is set in each address area. For example, in the state of FIGS. 3A and 8A, FIG.
(b) System configuration "600M # 1 LTE, 6
Since “00M # 2 LTE” is selected, “03” (only the D1 and D0 bits are H (high level)) is set in each address area shown in FIG. By changing (provisioning) the system configuration shown in FIG. 3B or FIG. 8B, the system configuration is changed from the above-mentioned system configuration to the system configuration “600M 4WK”. “08” (only the D3 bit is H) is set in each address area, thereby changing the line configuration in the TSA 105. Note that each termination circuit 10 in the transmission apparatus 101 is changed.
3 and the SW 104, the same address map as that described above is defined.
Through 01, the line configuration in each is changed.

FIG. 10 is a diagram showing an example of the configuration of a backbone system (SONET network) according to the present embodiment accompanying the addition of lines. As shown in the example of the system change from FIG. 3A to FIG. 3B, for example, the network side lines 102B and 102
D (OC12 line) is changed to a work line, so that a new ATM switch (ATM
SWITCH) can be connected to the transmission device C and the transmission device B, and the line capacity supplied to the subscriber line 106 can be increased.

[0057]

According to the first aspect of the present invention, it is possible to easily set a line according to the traffic usage in the transmission device.

According to the second aspect of the present invention, even if a request to increase the traffic usage occurs while the transmission apparatus is operating, the line while maintaining the operating line state is maintained. (In-service upgrade) can be easily realized.

Further, according to the present invention, the user can easily upgrade the transmission device using the human-machine interface based on the operation of the terminal device.

As described above, according to the present invention, there is no need to develop a new transmission device in response to traffic whose capacity will increase in the future, so that the development cost and provision cost of the transmission device can be reduced. Becomes

[Brief description of the drawings]

FIG. 1 is a basic configuration diagram (part 1) of an embodiment of the present invention.

FIG. 2 is a basic configuration diagram (part 2) of the embodiment of the present invention.

FIG. 3 is a diagram illustrating a line configuration example (1).

FIG. 4 is a diagram illustrating an example of a line configuration (No. 2).

FIG. 5 is a diagram showing a line configuration example (part 3).

FIG. 6 is a diagram showing an operation flow (part 1) of the present embodiment.

FIG. 7 is a diagram showing an operation flow (part 2) of the present embodiment.

FIG. 8 is a diagram illustrating an example of an operation screen of a terminal.

FIG. 9 is a diagram illustrating an example of provisioning data.

FIG. 10 is a diagram illustrating an example of a system configuration of a backbone system (SONET) accompanying the addition of a line.

FIG. 11 is an explanatory diagram of a conventional technique.

[Description of Signs] 101 Transmission apparatus 102 Network side line 103 Termination circuit 104 SW 105 TSA 106 Subscriber side line 201 Control unit 202 Terminal

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Seiji Iwamoto 3-9-18 Shin-Yokohama, Kohoku-ku, Yokohama-shi, Kanagawa Prefecture Inside Fujitsu Communication Systems Limited (72) Inventor Kazushige Saito 3 Shin-Yokohama, Kohoku-ku, Yokohama-shi, Kanagawa Prefecture No. 9-18, Fujitsu Communication Systems Limited

Claims (7)

[Claims] 1. A line configuration method in a transmission apparatus comprising a terminating circuit for forming a network and terminating each network side line which is a line on the network, and a connecting circuit for connecting the terminating circuit to each subscriber side line. The termination circuit installed as the working system and all or a part of the termination circuit installed as the standby system are both set to operate as the working system, and the connection circuit is Executes provisioning of a line configuration, which is a process of setting connection of the terminating circuit set to operate as the working system to each of the subscriber side lines, and executes the terminating circuit set to operate as the working system Wherein each network side line on the network is accommodated as a working line. 2. A line configuration method in a transmission apparatus comprising a terminating circuit which forms a network and terminates each network side line which is a line on the network, and a connection circuit which connects the terminating circuit to each subscriber side line. In a redundant configuration in which the terminating circuit of the working system and the terminating circuit of the standby system are mixed, all unused terminating circuits are newly added to the working system while maintaining the line state of the terminating circuit in operation. Line configuration, which is a process of setting the connection circuit to connect the terminating circuit newly set to be operated as the active system to each of the subscriber lines. And each of the network-side lines on the network is accommodated as a working line in the terminating circuit set to operate as the new working system. , The line configuration method in a transmission apparatus characterized by. 3. A line configuration method in a transmission apparatus comprising a terminating circuit which forms a network and terminates each network side line which is a line on the network, and a connection circuit which connects the terminating circuit to each subscriber side line. In a redundant configuration in which the working terminating circuit and the standby terminating circuit are mixed, some unused terminating circuits are newly added while maintaining the line state of the operating terminating circuit. This is a process of setting to operate as a working system and setting, for the connection circuit, to connect the terminating circuit newly set to be operated as a working system to each of the subscriber side lines. Provision a circuit configuration, and accommodate each network side line on the network as a working line in the terminating circuit set to operate as the new working system. That, the line configuration method in a transmission apparatus characterized by. 4. A line configuration method in a transmission apparatus comprising a terminating circuit which forms a network and terminates each network side line which is a line on the network, and a connection circuit which connects the terminating circuit to each subscriber side line. A first setting means for setting that all or a part of the termination circuit installed as the working system and all or a part of the termination circuit installed as the protection system are operated as the working system; and And second setting means for setting connection of a terminating circuit set to operate as the working system to each of the subscriber lines, and setting to operate as the working system. A network configuration system in a transmission apparatus, wherein each of the network-side lines on the network is accommodated in the terminating circuit as a working line. 5. A line configuration method in a transmission apparatus comprising a terminating circuit for forming a network and terminating each network side line which is a line on the network, and a connection circuit for connecting the terminating circuit to each subscriber side line. In a redundant configuration in which the terminating circuit of the working system and the terminating circuit of the standby system are mixed, all unused terminating circuits are newly added to the working system while maintaining the line state of the terminating circuit in operation. First setting means for setting to operate as: and setting for the connection circuit to connect the terminating circuit newly set to be operated as the working system to each of the subscriber side lines. And a second setting unit, wherein each of the network-side lines on the network is accommodated as a working line in the terminating circuit set to operate as a new working system. Line configuration method in a transmission apparatus characterized. 6. A line configuration method in a transmission apparatus comprising a terminating circuit which forms a network and terminates each network side line which is a line on the network, and a connection circuit which connects the terminating circuit to each subscriber side line. In a redundant configuration in which the working terminating circuit and the standby terminating circuit are mixed, some unused terminating circuits are newly added while maintaining the line state of the operating terminating circuit. First setting means for setting operation as a working system; and connecting the terminating circuit newly set to operate as a working system to each of the subscriber lines with respect to the connection circuit. Setting each of the network-side lines on the network as a working line in the terminating circuit newly set to operate as the working system. Line configuration method in a transmission apparatus according to claim. 7. The first and second setting means include: a terminal device connected to the outside of the transmission device; and a terminal device installed in the transmission device, wherein the terminal device, the termination circuit, and the connection circuit are connected to each other. The line configuration method in the transmission device according to claim 4, further comprising: a control circuit that establishes an interface.