JP5537504B2 - Device that controls switching of redundant lines - Google Patents

Description

  The present invention relates to an apparatus for performing switching control of redundant lines, and more particularly to a line switching control method for equalizing the component life of each redundant line in an apparatus having a redundant line configuration.

  Link aggregation (specified in IEEE 802.3ad) that bundles multiple lines connecting devices and treats them as one virtual line as a technology for making connections between network devices such as routers and switches redundant, There is an uplink redundant with a port redundancy function in which one of the two ports used for the uplink is the active line and the other is the standby line.

  Link aggregation has not only a function that always uses all lines as an active line, but also a standby link function that uses a standby line as an active line only when an operational line fails by providing an active line and a standby line. Which line to select as a standby line is determined by the number of active lines in link aggregation and the configuration value specified by the user called the "port priority" assigned to each line that constitutes the link aggregation. To do.

  Uplink redundant is a function that uses a secondary port as an operation line when a primary port fails by providing an operation line called a primary port and a standby line called a secondary port for connection on the uplink side.

  On the other hand, it is important as an operation to manage the life of parts that constitute a device including a line. As the management method, there are a method of periodically switching the duplexing device shown in Patent Document 1 and a method of management based on the use temperature condition shown in Patent Document 2.

  In addition, there is a method to switch between the operation line and standby line by specifying "time" by applying the power saving function to control the power of the line by specifying the time zone according to the schedule to each line constituting the link aggregation. .

JP 11-252210 A JP2005-265774

  In link aggregation using the standby link function with a redundant configuration of the active line and standby line, it was decided which line to select as the standby line based only on the number of active lines and the port priority. However, the operation line is always a fixed line except when a failure occurs, and there is a problem that only the part life of the operation line is shortened by continuing operation.

  In addition, by simply switching the lines that make up a link aggregation by “time” using the power saving function that uses a schedule, there will be a difference in the aging of each line due to factors such as traffic, resulting in only the aging of a specific line. There is a problem that there is a possibility of progress.

  Also, for uplink redundancy, which is a port redundancy function, as with link aggregation using the standby link function, the line constituting the primary port is always a fixed line, and the operation life of the parts of the operation line is maintained. There is a problem that only becomes shorter.

  Furthermore, when the transceiver is inserted / removed from / from the port, the terminal of the transceiver is worn out, which causes a problem that the transceiver deteriorates over time.

  In order to solve the above-described problem, the present invention is an apparatus connected to another apparatus via a network, and a plurality of ports that transmit and receive packets via the network, and a port control unit that controls the port; A consumption information management unit that manages at least two items of operating time, communication amount, or transceiver insertion count for each port as the consumption information of the port, and the consumption information management unit manages each port An apparatus is provided that calculates an operating value based on the consumption information and holds the operating value for each port.

  Further, in the present invention, the device is a redundant configuration in which the first port that is at least one operation port and the second port that is at least one standby port among the plurality of ports are in a redundant configuration. The port control unit sets the first port as a standby port based on the difference between the operation value of the first port and the operation value of the second port held by the consumption information management unit. An apparatus for switching a second port to an operation port is provided.

  According to the present invention, it is possible to equalize the line life by using the operation line and the standby line equally by evaluating the operating value of each line adopting the redundant configuration.

It is an internal block diagram of the apparatus in 1st embodiment. It is a figure explaining the example of a transceiver table. It is a figure explaining the example of a port management table. It is a figure explaining the example of a consumption coefficient management table. It is a figure explaining the example of a port operation record table. It is a figure explaining the example of an operating value calculation formula. It is a figure explaining the example of a link aggregation management table. It is explanatory drawing which shows the processing flow of a transceiver insertion / extraction process. It is explanatory drawing which shows the processing flow of a consumption information collection part. It is explanatory drawing which shows the processing flow of a link aggregation control part. It is explanatory drawing which shows the processing flow of the port switching determination process of link aggregation. It is explanatory drawing which shows the processing flow of the port switching process of a link aggregation. It is explanatory drawing which shows the processing flow of the port switching process of the switching process part. It is a figure explaining the example of the transceiver table in a predetermined time. It is a figure explaining the example of the port management table in a predetermined time. It is a figure explaining the example of the link aggregation management table in a predetermined time. It is a figure explaining the example of the port operation record table in a predetermined time. It is a figure explaining the example of the port management table in a predetermined time. It is a figure explaining the example of the transceiver table in a predetermined time. It is a figure explaining the example of the port management table in a predetermined time. It is a figure explaining the example of the transceiver table in a predetermined time. It is a figure explaining the example of the port management table in a predetermined time. It is a figure explaining the example of the port management table in a predetermined time. It is a figure explaining the example of the port operation record table in a predetermined time. It is a figure explaining the example of the link aggregation management table in a predetermined time. It is a figure explaining the example of the link aggregation management table in a predetermined time. It is a figure explaining the example of the port management table in a predetermined time. It is a figure explaining the example of the link aggregation management table in a predetermined time. It is a figure explaining the example of the port management table in a predetermined time. It is a figure explaining the example of the link aggregation management table in a predetermined time. It is an internal block diagram of the apparatus in 2nd embodiment. It is a figure explaining the example of a port redundancy table. It is explanatory drawing which shows the processing flow of a consumption information collection part. It is explanatory drawing which shows the processing flow of a port redundancy control part. It is explanatory drawing which shows the processing flow of the port switching determination process of port redundancy. It is explanatory drawing which shows the processing flow of the port switching process of port redundancy. It is a figure explaining the example of the transceiver table in a predetermined time. It is a figure explaining the example of the port management table in a predetermined time. It is a figure explaining the example of the port redundancy table in a predetermined time. It is a figure explaining the example of the port operation record table in a predetermined time. It is a figure explaining the example of the port management table in a predetermined time. It is a figure explaining the example of the port operation record table in a predetermined time. It is a figure explaining the example of the port redundancy management table in a predetermined time. It is a figure explaining the example of the port redundancy management table in a predetermined time. It is a figure explaining the example of the port redundancy management table in a predetermined time.

  Hereinafter, embodiments of the present invention will be described using examples with reference to the drawings. The same constituent elements are given the same reference numerals, and description thereof will not be repeated.

  FIG. 1 is an internal block diagram of an apparatus according to the first embodiment of the present invention. The device 10 includes a wear information collection unit 20 that collects wear information, a port 1 60, a port 2 61, a port 3 62, and a port 4 63 used for communication with other devices, and a port control unit 50 that controls each port. And a link aggregation control unit 30 for controlling the link aggregation when the ports are configured by link aggregation, a transceiver 1 70, a transceiver 2 71, a transceiver 3 72, and a transceiver 4 73 stored in each port. . Each transceiver stores a physical cable and mutually converts a signal flowing on the cable and a signal in the apparatus. In addition, the apparatus 10 further includes a wear coefficient management table 100 that manages wear coefficients, a port operation record table 200 that manages operation time, a link aggregation management table 300, a transceiver table 500 that stores transceiver information, and port information. Are stored in the port management table 600, and each part is connected by a bus. The port control unit 50 includes a transceiver processing unit 51 and a switching processing unit 52.

  FIG. 2 is a diagram for explaining an example of the transceiver table 500. The transceiver table 500 includes at least entries for the transceivers stored in the port. The transceiver table 501 includes a transceiver number 501, a vendor name 502 indicating the transceiver vendor name, a vendor serial number 503 indicating the transceiver serial number, and a difference between the transceivers. The number of insertion times 504 for recording the number of insertions is included.

  FIG. 3 is a diagram for explaining an example of the port management table 600. The port management table 600 includes entries for the number of ports, and includes a port number 601, a port state 602 indicating whether the port is Up or Down, and the transceiver number of the transceiver stored in the corresponding port (in the transceiver table 500). The transceiver number 603 for storing the transceiver number corresponding to the recorded transceiver number 501) and the communication amount 604 passed at the time of transmission / reception at the port are included. The communication amount 604 is, for example, the number of bytes and the number of packets that have passed. In the present embodiment, the communication amount 604 is described below as the number of packets.

  The traffic amount 604 is counted when the packet or frame passes through the port 1 60 to the port 4 63 and is recorded in the traffic amount 604 corresponding to the corresponding port in the port management table 600 and updated. . The port state 602 “Up” indicates that power is supplied to the port, and the port state 602 “Down” indicates that power is not supplied to the port. When the entry portion of the transceiver number 603 is “−”, it indicates that no transceiver is stored in the corresponding port.

  FIG. 4 is a diagram for explaining an example of the wear coefficient management table 100. The consumption coefficient management table 100 is a traffic weight value 101 that is a weight value for weighting the traffic amount 604 of the port management table 600 and a weight value for weighting the number of insertions 504 of the transceiver table 500. It includes items of an insertion count weight value 102 and a threshold 103 which is a value used to determine whether or not to switch the port. Each value of the table 100 is set by a configuration input by the user. Or you may hold | maintain fixedly in an apparatus.

  FIG. 5 is a diagram for explaining an example of the port operation record table 200. The port operation record table 200 includes entries for the number of ports, and includes items of a port number 201, an operation time 202 indicating the operation time of each port, and an operation value 203 for each port.

  FIG. 6 is a diagram illustrating an example of a calculation unit for the operation value 203 of the port operation record table 200. The operation value 203 includes an operation time 202 of the port operation record table 200, a multiplication result of the communication amount 604 of the port management table 600 and the communication amount weight value 101 of the consumption coefficient management table 100, and the number of insertions 504 of the transceiver table 500. Calculation is performed by adding the multiplication results of the insertion number weight value 102 in the wear coefficient management table 100. The calculation means for the operating value 203 may be calculated without weighting, or another calculation means may be used. In calculating the operating value 203, both the communication amount 604 and the number of insertions 504 are used. However, the operating value 203 may be calculated using only one of them, and the operating time 202 may be used. It is also possible to calculate the operating value 203 without using it.

  FIG. 7 is a diagram for explaining an example of the link aggregation management table 300. The link aggregation management table 300 includes entries for the number of link aggregations to be configured, and includes a LAG number 301, an operation port number 302 indicating the number of operation ports in the standby link function of each link aggregation, and a standby port number indicating the number of standby ports. A post-switch state in which the number of ports 303 and the number of ports constituting each link aggregation are included, and the port number 304 indicating the port number of the port constituting each link aggregation and the result of switching presence / absence for the port number 304 are recorded. 305 items. The post-switching state 305 indicates an initial state “not yet”, “Up” for switching to the Up state after switching, “Down” for switching to the Down state after switching, and “Done” indicating that switching is not performed.

FIG. 8 is an explanatory diagram showing a processing flow of transceiver insertion / removal processing of the transceiver processing unit 51 in the port control unit 50 (S1000).
First, when a transceiver is inserted / removed in the port 1 60 to the port 4 63, the transceiver processing unit 51 confirms whether the transceiver is inserted in the corresponding port or whether the transceiver is removed (S1001). If the transceiver is inserted as a result of the confirmation, the transceiver processing unit 51 acquires the vendor name and the vendor serial number of the inserted transceiver (S1002). The transceiver processing unit 51 searches for the entry of the transceiver number 501 having the same vendor name 502 and vendor serial number 503 in the transceiver table 500 for the acquired transceiver vendor name and vendor serial number (S1003). If there is an identical entry as a result of the search, the value of the number of insertions 504 corresponding to the corresponding transceiver number 501 is incremented by 1 and recorded (S1004). Next, the number corresponding to the transceiver number 501 is recorded in the transceiver number 603 corresponding to the port number of the port to which the transceiver of the port management table 600 is inserted (S1005).

  On the other hand, if there is no identical entry in S1003, a new entry is created in the transceiver table 500, the acquired vendor name is recorded in the vendor name 502, and the acquired vendor serial number is recorded in the vendor serial number 503 (S1006). Next, the value of the number of insertions 504 of the newly created entry is recorded as “0” (S1007). Finally, the number corresponding to the transceiver number 501 of the newly created entry is recorded in the transceiver number 603 corresponding to the port number 601 of the port to which the transceiver is inserted in the port management table 600 (S1005).

  On the other hand, if the transceiver is removed in S1001, "-" is recorded in the transceiver number 603 corresponding to the port number of the port from which the transceiver is removed in the port management table 600 (S1008).

FIG. 9 is an explanatory diagram showing a processing flow of the consumption information collection unit 20 (S1100). This process is executed periodically. In this embodiment, it is executed every T seconds.
The consumption information collection unit 20 performs the following repetitive processing for the number of ports in the port management table 600 (S1101, S1105). First, the port status 602 corresponding to the port number 601 is confirmed (S1102). If the confirmed port status 602 is Up, T seconds, which is the difference time from the previously processed time, is added to the entry of the operation time 202 corresponding to the port number 201 of the port operation record table 200 and recorded (S1103). .

  Next, from the transceiver table 500, the operation time 202 corresponding to the port number 201 in the port operation record table 200, the communication amount 604 corresponding to the port number 601 in the port management table 600, and the transceiver number 603 corresponding to the port number 601 are obtained. Using the corresponding insertion number 504, the traffic weight value 101 and the insertion number weight value 102 of the consumption coefficient management table 100, the operation value 203 is calculated by the calculation formula shown in FIG. It records in the operation value 203 of the table 200 (S1104).

  On the other hand, if the confirmed port state 602 is down in S1102, the processes in S1103 and S1104 are not performed. The consumption information collection unit 20 notifies the link aggregation control unit 30 of the link aggregation switching processing after the repetition processing (S1101, S1105) is completed (S1106).

FIG. 10 is an explanatory diagram showing a processing flow of the link aggregation control unit 30 (S1200). This processing is executed upon receiving the notification in S1106 of the above-described consumption information collection unit 20.
The link aggregation control unit 30 performs the following iterative process for the number of entries indicated by the LAG number 301 in the link aggregation management table 300 (S1201, S1208).

  First, in order to confirm whether there is an operation line that can be switched to the standby line, all of the operation port number 302 corresponding to the LAG number 301 of the link aggregation management table 300 and the port number 304 corresponding to the LAG number 301 are all. For the entry, a list of port numbers whose port state 602 corresponding to the port number 601 is Up and the number of ports in the Up state are acquired from the port management table 600 (S1202).

  Next, it is determined whether the number of ports in the Up state acquired is greater than 0, and the number of ports in the Up state and the number of operating ports 302 are checked to determine whether the number of ports in the Up state is equal to the number of operating ports (S1203). ). If both of the determinations in S1203 are true, the number of standby ports 303 corresponding to the LAG number 301 in the link aggregation management table 300 is checked in order to confirm whether there is a standby line that can be switched to the active line. For all entries of the port number 304 corresponding to the LAG number 301, a list of port numbers whose port status 602 corresponding to the port number 601 is Down and the number of ports in the Down status are acquired from the port management table 600 (S1204).

  Next, it is determined whether the acquired number of ports in the Down state is greater than 0, and whether the number of ports in the Down state and the number of standby ports 303 are checked to determine whether the number of ports in the Down state is equal to the number of standby ports. (S1205). If the two determinations in S1205 are both true, there is a switchable line, so a link aggregation port switching determination process is executed (S1300). This process will be described in S1300 of FIG. Thereafter, a link aggregation port switching process is executed (S1400). This processing will be described in S1400 of FIG.

  On the other hand, if the determination in S1203 is not true, there is no switchable line, so the processes in S1204, S1205, S1300, and S1400 are not performed. If the determination in S1205 is not true, there is no switchable line, so the processes in S1300 and S1400 are not performed.

FIG. 11 is an explanatory diagram showing a processing flow of link aggregation port switching determination processing of the link aggregation control unit 30 (S1300).
The link aggregation control unit 30 records the post-switching state 305 corresponding to all the port numbers 304 corresponding to the LAG numbers 301 in the link aggregation management table 300 as “not yet” (S1301). Next, for all port numbers 304 corresponding to the LAG number 301, the corresponding operation value 203 is acquired from the port operation record table 200, and the port status 602 of the corresponding port is acquired from the port management table 600 (S1302). ).

  Next, for the operation values 203 and port states 602 corresponding to all acquired port numbers, the difference between the operation value 203 of the port whose port state 602 is Up and the operation value 203 of the port whose port state 602 is Down is calculated. By comparing with the threshold value 103 of the consumption information management table 100, zero or more sets that are combinations of ports for which the difference in the operation value 203 is equal to or greater than the threshold value are extracted. Here, the set is {port number whose port state is Up, port number whose port state is Down} (S1303).

  Next, it is confirmed whether there is one or more extracted sets (S1304). When the number of confirmed pairs is one or more, the post-switch state 305 corresponding to the port number 304 corresponding to the LAG number 301 of the link aggregation management table 300 for all the port numbers whose port state is Up in the extracted pair. Is recorded as “Down”, and the post-switching state corresponding to the port number 304 corresponding to the LAG number 301 of the link aggregation management table 300 is recorded as “Up” for all port numbers whose port state is Down (S1305). In S1304, when the number of confirmed groups is 0, the processing in S1305 is not performed.

  Finally, in the post-switching state 305 corresponding to the port number 304 corresponding to the LAG number 301 in the link aggregation management table 300, all the entries that are “not yet” are recorded as “completed” (S1306).

FIG. 12 is an explanatory diagram showing a processing flow of link aggregation port switching processing of the link aggregation control unit 30 (S1400).
The link aggregation control unit 30 performs the following iterative process for the number of entries of the port number 304 corresponding to the LAG number 301 of the link aggregation management table 300 (S1401, S1404). When the post-switching state 305 corresponding to the port number 304 is “Up”, the port control unit 50 is notified that the port number and the post-switching state are “Up” (S1402). After S1402, the post-switching state 305 corresponding to the port number 304 is recorded as “completed” (S1403).

  Next, the link aggregation control unit 30 performs the following iterative process for the number of entries of the port number 304 corresponding to the LAG number 301 of the link aggregation management table 300 (S1405, S1408). When the post-switching state corresponding to the port number 304 is “Down”, the port control unit 50 is notified that the port number and the post-switching state are “Down” (S1406). After S1406 ends, the post-switching state 305 corresponding to the port number 304 is recorded as “completed” (S1407).

FIG. 13 is an explanatory diagram showing a processing flow of port switching processing of the switching processing unit 52 in the port control unit 50 (S1500).
First, the switching processing unit 52 checks the post-switching state notified from the link aggregation control unit 30 in S1402 or S1406 (S1501). When the confirmed post-switching state is “Up”, the state of the port specified by the notified port number is changed to “Up” (S1502). Next, the port status 602 corresponding to the port number 601 in the port management table 600 is recorded as “Up” (S1503).

  On the other hand, if the confirmed post-switch state is “Down” in S1501, the state of the port specified by the notified port number is changed to “Down” (S1504). Next, the port status 602 corresponding to the port number 601 in the port management table 600 is recorded as “Down” (S1505).

The specific operation of the configuration described above will be described.
As the order of explanation, the state of the apparatus 10 at a certain point in time will be described first, the processing flow when the transceiver is inserted / removed next, and the processing flow for finally performing the port switching processing will be described.

First, the state of the device 10 at a certain point will be described.
The apparatus 10 stores the transceiver 1 70 to the transceiver 3 72 in the port number 1 60 to the port number 3 62, and uses the port number 1 60 to the port number 3 63 of the port number 1 60 to the port number 4 63 to link them. Assume that an aggregation is configured, of which port number 160 and port number 2 61 are operated as operation lines, and port number 3 62 is operated as a standby line. The states of the transceiver table 500, the port management table 600, the link aggregation management table 300, and the port operation record table 200 at this time are shown in FIGS. 14, 15, 16, and 17, respectively.

  FIG. 14 shows the state of the transceiver table 500. The transceiver table 500 stores the entries for three transceivers of the transceiver 170, the transceiver 2 71, and the transceiver 3 72, and each of the entries has the transceiver number 501. “XXXX”, “YYYY”, “XXXX” as the vendor name 502, and “ZZZZ”, “WWWW”, “VVVV” as the vendor serial number 503 are assigned to “1”, “2”, “3”. In addition, “0”, “1”, and “0” are stored as the number of insertions 504.

  FIG. 15 shows the state of the port management table 600. The port management table 600 stores entries for four ports of port 1 60, port 2 61, port 3 62, and port 4 63, respectively. “1”, “2”, “3”, “4” are assigned to each entry of the number 601, “Up”, “Up”, “Down”, “Down” as the port state 602 and the transceiver number 603. “1”, “2”, “3”, “−” are stored as “100000”, “90000”, “50000”, and “0” as the communication amount 604.

  FIG. 16 shows the state of the link aggregation management table 300, entries for one link aggregation are stored in the link aggregation management table 300, and “1” is assigned as the entry number of the LAG number 301. . The first entry of the LAG number 301 has “2” as the number of active ports 302, “1” as the number of standby ports 303, and port number 304 has entries for the number of ports constituting the link aggregation. There are “1”, “2”, and “3” indicating the port number, and there are entries for the number of ports in the post-switching state 305, each storing “completed”. The values stored in the post-switching state 305 are all “by S1306 of FIG. 11 of the link aggregation control unit 30 notified from the consumption information collecting unit 20 every T seconds, S1403 of FIG. 12, or S1407 of FIG. Has been updated.

  FIG. 17 shows the state of the port operation record table 200. The port operation record table 200 stores four port entries of port 1 60, port 2 61, port 3 62, and port 4 63. “1”, “2”, “3”, “4” are assigned as the entry numbers of the port numbers 201, and “5000”, “4000”, “500”, “500” are set as the operating time 202 as the operating values. As “203”, “55000”, “49010”, “25500”, and “500” are stored. Normally, the process shown in FIG. 9 is executed every T seconds by the consumption information collection unit 20, and the operation time 202 and the operation value 203 are updated.

  Next, the transceiver insertion / removal flow (FIG. 8) will be described by taking as an example that the transceiver 2 71 has been removed from the port 2 61. When the transceiver 2 71 is disconnected from the port 2 61, the processing of S1000 of the transceiver processing unit 51 in the port control unit 50 shown in FIG. 8 is executed. As a result, the port management table 600 is updated as shown in FIG. 18 through S1001 and S1008. As illustrated, the value of the transceiver number 603 corresponding to the second entry (port 261 entry) of the port number 601 in the port management table 600 is recorded as “−”.

  In this state, when the transceiver 2 71 is inserted again into the port number 2 61, the processing of S1000 of the transceiver processing unit 51 in the port control unit 50 shown in FIG. 8 is executed again. As a result, since the same transceiver is inserted, the transceiver table 500 and the port management table 600 are updated as shown in FIGS. 19 and 20 by S1001, S1002, S1003, S1004, and S1005. As shown in the figure, the value of the number of insertions 504 corresponding to the second entry (transceiver 2 71 entry) of the transceiver number 501 in the transceiver table 500 is incremented by 1 and updated to “2” (FIG. 19), and the port management table “2” is recorded as the value of the transceiver number 603 of the transceiver 271 inserted into the second entry (port 2 61 entry) of the port number 601 of 600 (FIG. 20).

  Next, a case where the transceiver 4 73 is inserted into the port number 4 63 will be described as an example. When the transceiver 4 73 is inserted into the port number 4 63, the processing of S1000 of the transceiver processing unit 51 in the port control unit 50 shown in FIG. 8 is executed. As a result, since the new transceiver is inserted, the transceiver table 500 and the port management table 600 are updated as shown in FIGS. 21 and 22 by S1001, S1002, S1003, S1006, S1007, and S1005. As shown in the figure, a fourth entry (entry for transceiver 473) is created in the transceiver table 500, the transceiver number 501 is "4", the vendor name 502 is "XXXX", and the vendor serial number 503 is "UUUU". “0” is recorded in the number of times 504 (FIG. 21), and “4” is set as the value of the transceiver number 603 of the transceiver 473 inserted into the fourth entry (port 463 entry) of the port number 601 in the port management table 600. Is recorded (FIG. 22).

  Next, assuming that “T seconds”, which is the cycle of S1100 shown in FIG. When 10 seconds elapse from the state of FIG. 22, the port management table 600 is in the state shown in FIG. As shown in the figure, the communication amount 604 corresponding to the first entry of the port number 601 in the port management table 600 is added by the number of packets transmitted / received in 10 seconds, and the value is “101000”, which is the second of the port number 601. The communication amount 604 corresponding to the entry is added for the number of packets transmitted and received in 10 seconds, and updated as “90500” as a value. For the third and fourth entries of the port number 601 in the port management table 600, the port status 602 is “Down” and no communication is performed, so the value of the traffic 604 is not added.

  In the state of FIG. 23, the process of S1100 of the consumption information collection unit 20 shown in FIG. 9 is executed. As a result, the port management table 600 is processed for four ports of port number 1 60, port number 2 61, port number 3 62, and port number 4 63 (S1101, S1105), and port number 1 60 and port number 2 61 are processed. When the port status 602 is “Up”, the processing of S1103 and S1104 is performed. When the port status 362 is “Down”, the processing of S1103 and S1104 is performed when the port status 602 is “Down”. As a result, the port operation record table 200 is updated as shown in FIG. 24 from the state of FIG.

  As shown in the figure, the value of the operation time 202 corresponding to the first entry of the port number 201 of the port operation record table 200 is recorded as “5010”, the value of the operation value 203 is recorded as “55510”, and the second of the port number 201 is recorded. The value of the operation time 202 corresponding to the entry of “4010” and the value of the operation value 203 are recorded as “49280”. Subsequently, the link aggregation control unit 30 is notified of the link aggregation switching process (S1106).

  The link aggregation control unit 30 that has received the notification from the consumption information collection unit 20 executes the process of S1200 shown in FIG. As a result, the number of entries in the link aggregation table 300 of FIG. 16 is one (S1201, S1208), the number of operating ports constituting the first entry of the LAG number 301 is “2”, and the number of standby ports is “1”. "There are two ports with port status" Up "(port number 1 60 and port number 2 61) and one port with port status" Down "(port number 3 62). S1202, S1203, S1204, and S1205 are executed, and then S1300 and S1400 are executed.

  In the process of S1300 shown in FIG. 11, S1301 is executed first. As a result, the link aggregation table 300 is updated to the state shown in FIG. As shown in the figure, all the post-switching states 305 are recorded as “not yet” for the first, second, and third entries of the port number 304 corresponding to the first entry of the LAG number 301 of the link aggregation table 300.

  Subsequently, in S1302, the operating values of the ports whose port status is “Up” (port number 1 60, port number 2 61) and the ports whose port status is “Down” (port number 3 62) are respectively acquired. Note that the operation values of each port acquired from the port operation record table 200 of FIG. 24 are “55510” for port number 160, “49280” for port number 261, and “25500” for port number 362. In S1303, the difference between the operating values of the port whose port status is “Up” and the port whose port status is “Down” is compared with the value “30000” of the threshold 103 of the consumption information management table 100, respectively. {Port number 1 60, port number 3 62} is extracted as a set {port number whose port state is Up, port number whose port state is Down} that is larger than the threshold “30000”.

  By extracting one set, S1305 and S1306 are executed. As a result, the link aggregation table 300 is updated to the state shown in FIG. As shown in the figure, the post-switching state 305 for the first, second and third entries of the port number 304 corresponding to the first entry of the LAG number 301 of the link aggregation table 300 is “Down” and “Done”, respectively. , “Up” is recorded. This is the end of S1300.

  Subsequently, in the processing of S1400 shown in FIG. 12, loop processing (S1401 to S1404) is executed for each entry of the link aggregation table 300 of FIG. S1402 and S1403 are executed for the port 3602 in which the post-switching state 305 is “Up”. The switching processing unit 52 of the port control unit 50 that has received the notification in S1402 executes S1501, S1502, and S1503 of FIG. 13 because the notified post-switching state is “Up”. As a result, the port 3 62 is in the Up state, and the port management table 600 and the link aggregation table 300 are updated as shown in FIGS. As illustrated, the value of the port status 602 corresponding to the third entry of the port number 601 in the port management table 600 is recorded as “Up” (S1503 in FIG. 13), and the first LAG number 301 in the link aggregation table 300 is recorded. The post-switching state 305 corresponding to the third entry of the port number 304 corresponding to this entry is recorded as “Done” (S1403 in FIG. 12). Thus, the loop 1 (S1401 to S1404) of S1400 in FIG. 12 is completed.

  As a result, the port state 602 of the port 3 62 changes from “Down” to “Up”, and the operation starts as an operation line. At this time, all the port 1 60, port 2 61, and port 3 62 operate as operation lines in the first entry of the link aggregation LAG number 301.

  Subsequently, the second loop processing (S1405 to S1408) is executed for each entry in the link aggregation table 300 of FIG. Steps S1406 and S1407 are executed for the port 160 whose post-switching state 305 is “Down”. Upon receiving the notification in S1406, the switching processing unit 52 of the port control unit 50 executes S1501, S1504, and S1505 in FIG. 13 because the notified post-switching state is “Down”. As a result, the port 160 is in the Down state, and the port management table 600 and the link aggregation table 300 are updated as shown in FIGS. As illustrated, the value of the port state 602 corresponding to the first entry of the port number 601 in the port management table 600 is recorded as “Down” (S1505 in FIG. 13), and the first LAG number 301 in the link aggregation table 300 is recorded. The post-switching state 305 corresponding to the first entry of the port number 304 corresponding to this entry is recorded as “Done” (S1407 in FIG. 12). Thus, the loop 2 (S1405 to S1408) of S1400 in FIG. 12 is completed.

  As a result, the port state 602 of the port 1 60 changes from “Up” to “Down” and operates as a standby line. As a result, the first entry of the LAG number 301 of the link aggregation starts operation with the port 2 61 and the port 3 62 as the operation line, and the port 1 60 operates as the standby line.

  As described above, according to the present embodiment, when the difference between the operating value of the active line and the operating value of the standby line constituting the link aggregation exceeds the threshold value, the active line and the standby line are switched. . As a result, switching according to line consumption (port operation time, communication volume, number of insertions, etc.) can be performed. The service life can be equalized.

  FIG. 31 is an internal block diagram of an apparatus according to the second embodiment of the present invention. The basic configuration is the same as that of the device 10 described in FIG. 1, but the link aggregation control unit 30 and the link aggregation management table 300 are eliminated from FIG. Are added to the port redundancy control unit 40 and the port redundancy management table 400.

  FIG. 32 is a diagram for explaining an example of the port redundancy management table 400. The port redundancy management table 400 includes entries corresponding to the number of port redundancy configured by the device 10, and includes a port redundancy number 401, a port number 402 including entries of operation ports and standby ports configuring each port redundancy, and the port It includes a port redundancy state 403 indicating a port redundancy state for the number 402 and a switching presence / absence 404 for recording the result of switching presence / absence for the port redundancy number 401. In the switching presence / absence 404, one of an initial state “not yet”, “present” for performing switching, and “done” indicating that switching is not performed is recorded.

  FIG. 33 is an explanatory diagram showing a processing flow of the consumption information collection unit 20 (S2100). 33, in the processing flow shown in FIG. 9, the link aggregation control unit 30 is notified of the link aggregation switching process (S1106), and the port redundancy control unit 40 is notified of the port redundancy switching process (S2106). Since the other processes are the same, the detailed description is omitted.

  FIG. 34 is an explanatory diagram showing a processing flow of the port redundancy control unit 40 (S2200). The port redundancy control unit 40 performs the following iterative process for the number of entries in the port redundancy management table 400 (S2201, S2208). First, for all entries of the port number 402 corresponding to the port redundancy number 401 of the port redundancy management table 400, the number of ports in the state where the port state 602 corresponding to the port number 601 is “Up” is acquired from the port management table 600. (S2202). Next, it is determined whether or not the acquired number of ports in the Up state is “2” (S2203). If the determination result in S2203 is true, port redundancy determination processing for port redundancy is executed (S2300). This process will be described in S2300 of FIG. After that, port redundancy port switching processing is executed (S2400). This process will be described in S2400 of FIG. On the other hand, if the determination result in S2203 is not true, the processing in S2300 and S2400 is not performed.

  FIG. 35 is an explanatory diagram showing a processing flow of port redundancy determination processing for port redundancy in the port redundancy controller 40 (S2300). The port redundancy control unit 40 records the switching presence / absence 404 corresponding to the port redundancy number 401 of the port redundancy management table 400 as “not yet” (S2301). Next, the corresponding operation value 203 is acquired from the port operation record table 200 for all the port numbers 402 corresponding to the port redundancy number 401 (S2302). Next, the difference between the operating value of the port whose port redundancy status 403 corresponding to the port number 402 is “active” and the operating value of the port whose port redundancy status 403 corresponding to the port number 402 is “standby” is consumed. It is determined whether it is larger than the threshold value 103 of the coefficient management table 100 (S2303). If the determination result in S2303 is true, the switching presence / absence 404 corresponding to the port redundancy number 401 in the port redundancy management table 400 is recorded as “present” (S2304). On the other hand, if the determination result in S2304 is not true, the switching presence / absence 404 corresponding to the port redundancy number 401 in the port redundancy management table 400 is recorded as “completed” (S2305).

  FIG. 36 is an explanatory diagram showing a processing flow of port redundancy port switching processing of the port redundancy control unit 40 (S2400). It is determined whether the switching presence / absence 404 corresponding to the port redundancy number 401 in the port redundancy management table 400 is “present” (S2401). If the determination result of S2401 is true, the port redundancy state 403 corresponding to the port number 402 is “active” and the port redundancy state 403 corresponding to the port number 402 is “standby”. Switching between the port and the standby port is performed (S2402). Specifically, a port whose port redundancy state 403 is “active” is operated as a standby port, and a port whose port redundancy state 403 is “standby” is operated as an active port. Next, for the port whose port redundancy state 403 corresponding to the port number 402 is “active”, the port redundancy state 403 is recorded as “standby”, and the port redundancy state 403 corresponding to the port number 402 is “standby”. The port redundancy state 403 is recorded as “operation” for the port (S2403). Next, the switch presence / absence 404 corresponding to the port redundancy number 401 in the port redundancy management table 400 is recorded as “completed” (S2404). On the other hand, if the determination result of S2401 is not true, the processing of S2402, S2403, and S2404 is not performed.

The specific operation of the configuration described above will be described. As an order of explanation, first, the state of the apparatus 10 at a certain point in time, and then the processing flow for performing the port switching process will be described.
First, the state of the apparatus 10 at a certain point will be described. The device 10 stores the transceiver 1 70 to the transceiver 3 72 in the port number 1 60 to the port number 3 62, and uses the port number 1 60 and the port number 3 62 out of the port number 1 60 to the port number 4 63. It is assumed that redundancy is configured, in which port number 160 is used as an operation line and port number 362 is used as a standby line. The states of the transceiver table 500, the port management table 600, the port redundancy management table 400, and the port operation record table 200 at this time are shown in FIGS. 37, 38, 39, and 40, respectively.

  In FIG. 37, three transceiver entries of transceiver 170, transceiver 2 71, and transceiver 3 72 are stored in the transceiver table 500, and each of the entries of the transceiver number 501 is “1”, “2”, “ 3 ”,“ XXXX ”,“ YYYY ”,“ XXXX ”as the vendor name 502,“ ZZZ ”,“ WWWW ”,“ VVVV ”as the vendor serial number 503,“ 0 ”as the number of insertions 504, “1” and “0” are stored.

  In FIG. 38, four port entries of port 1 60, port 2 61, port 3 62, and port 4 63 are stored in the port management table 600, and “1”, “ 2 ”,“ 3 ”,“ 4 ”are assigned,“ Up ”,“ Up ”,“ Up ”,“ Down ”are set as the port state 602, and“ 1 ”,“ 2 ”,“ 3 ”are set as the transceiver number 603. , “−” Is stored as “100,000”, “90000”, “50000”, and “0” as the communication amount 604.

  In FIG. 39, one port redundancy entry is stored in the port redundancy management table 400, and “1” is assigned as the entry number of the port redundancy number 401. As for the first entry of the port redundancy number 401, the port number 402 has entries for the number of ports constituting the port redundancy, and “1” and “3” indicating the port numbers are respectively set to “operating” in the port redundancy state 403. ”And“ Standby ”, and“ Done ”is recorded in the switching presence / absence 404. The value stored in the switching presence / absence 404 is updated to “Done” in S2305 of FIG. 35 of the port redundancy control unit 40 or S2404 of FIG.

  FIG. 40 shows the entries for four ports, port 1 60, port 2 61, port 3 62, and port 4 63, stored in the port operation record table 200. The entry number of the port number 201 is “1”. “2”, “3”, “4” are assigned, “5000”, “4000”, “400”, “500” are set as the operation time 202, and “55000”, “49010”, “25400” are set as the operation value 203. "," 500 "are stored. Normally, the consumption information collection unit 20 executes the process of FIG. 9 every T seconds, and the operation time 202 and the operation value 203 are updated.

  Next, assuming that T seconds as the period of S2100 shown in FIG. When 10 seconds have elapsed, the port management table 600 changes from the state shown in FIG. 38 to the state shown in FIG. As shown in the figure, the communication amount 604 corresponding to the first entry of the port number 601 in the port management table 600 is added by the number of packets transmitted / received in 10 seconds, and the value is “101000”, which is the second of the port number 601. The communication amount 604 corresponding to the entry is added for the number of packets transmitted and received in 10 seconds, and updated as “90500” as a value. Note that a communication amount 604 is added to a port that is a standby port (a port whose port number 601 is “3”) and a port whose port state 602 is “Down” (a port whose port number 601 is “4”). Absent.

  In the state of FIG. 41, the process of S2100 of the consumption information collection unit 20 shown in FIG. 33 is executed. As a result, for the port management table 600 of FIG. 41, processing for four ports of port number 1 60, port number 2 61, port number 3 62, and port number 4 63 (S2101 and S2105) is performed. The port number 2 61 and the port number 3 62 are processed in S2103 and S2104 when the port state 602 is “Up”, and the port number 463 is that in the S2103 and S2104 when the port state 602 is “Down”. The process does not work. Thereby, the port operation record table 200 is updated as shown in FIG. As shown in the figure, the value of the operation time 202 corresponding to the first entry of the port number 201 of the port operation record table 200 is recorded as “5010”, the value of the operation value 203 is recorded as “55510”, and the second of the port number 201 is recorded. The value of the operation time 202 corresponding to the entry of “4010” and the value of the operation value 203 of “49270” are recorded, the value of the operation time 202 corresponding to the third entry of the port number 201 is “410”, and the operation The value 203 is recorded as “25410”. The loop processing (S2101 to S2105) is thus completed. Subsequently, the port redundancy control unit 40 is notified of the port redundancy switching process (S2106).

  The port redundancy control unit 40 that has received the notification from the consumption information collection unit 20 executes the process of S2200 shown in FIG. As a result, the number of entries in the port redundancy management table 400 in FIG. 39 is one, and the port having the first port redundancy number 301 and having the port status “Up” is port number 160 and port number 3. Therefore, S2202 and S2203 are executed, and then S2300 and S2400 are executed.

  In the process of S2300 shown in FIG. 35, S2301 is executed first. As a result, the port redundancy management table 400 is updated as shown in FIG. 43 from the state of FIG. As shown in the figure, the switching presence / absence 404 corresponding to the first entry of the port redundancy number 401 in the port redundancy management table 400 is recorded as “not yet”. Subsequently, through S2302 and S2303, the difference between the operating values of the operating state port number 160 (operating value is “55510”) and the standby state port number 3602 (operating value is “25410”) is determined by the consumption information management. By comparing the value “30000” of the threshold 103 of the table 100, it is determined that the value is larger than the threshold. When it is determined that the value is larger than the threshold value, S2304 is executed. As a result, the port redundancy management table 400 is updated as shown in FIG. As shown in the figure, the switching presence / absence 404 corresponding to the first entry of the port redundancy number 401 in the port redundancy management table 400 is recorded as “present”.

  Subsequently, in the process of S2400 shown in FIG. 36, for ports 1 60 and 3 62 whose switching presence / absence 404 corresponding to the first entry of the port redundancy number 401 in the port redundancy management table 400 is “present”, S 2401 and S 2402 And S2403 and S2404 are executed. As a result, the port redundancy management table 400 is updated as shown in FIG. As shown in the figure, the port redundancy state corresponding to the first entry of the port number 402 in the port redundancy management table 400 is “standby”, and the port redundancy state corresponding to the second entry of the port number 402 is “operation”. The switching presence / absence 404 corresponding to the first entry of the port redundancy number 401 is recorded as “completed”. As a result, the first entry of the port redundancy number 401 of the port redundancy function starts to operate as the port 3 62 as the active line and the port 160 as the standby line.

  As described above, according to the present embodiment, when the difference between the operating value of the active line and the operating value of the standby line in the port redundancy function exceeds the threshold value, the active line and the standby line are switched. As a result, switching according to line consumption (port operation time, communication volume, number of insertions, etc.) can be performed. The service life can be equalized.

In the first embodiment and the second embodiment described above, the operation value is calculated using the calculation formula of FIG. 6. However, the calculation value is not limited to this calculation method. It is also possible to calculate the operation value by combining appropriate conditions such as “value calculation” and “operation value calculation based on only the traffic” according to (Equation 2).
(Expression 1) Operating value = Operating time + Communication amount × Communication amount weight value (Equation 2) Operating value = Communication amount × Communication amount weight value Thereby, based on the operating value calculated by combining appropriate conditions, the operation line Since the standby line can be switched, it is possible to perform switching according to the exhausted state of various lines. Also, it is possible to set a priority for each port, and a port with a priority level equal to or higher than a predetermined value is always treated as an operation port and not to be switched. In this case, for example, in S1303 in FIG. 11, it is only necessary not to extract a set including a port having a priority higher than a predetermined value.

10: Device, 20: Consumption information collection unit, 30: Link aggregation control unit, 40: Port redundancy control unit, 50: Port control unit, 51: Transceiver processing unit, 52: Switching processing unit, 60 to 63: Port, 70 ˜73: transceiver, 100: consumption coefficient management table, 200: port operation record table, 300: link aggregation management table, 400: port redundancy management table, 500: transceiver table, 600: port management table

Claims (5)

A device that connects to other devices via a network,
A plurality of ports for transmitting and receiving packets via the network;
A port control unit for controlling the port;
A consumption information management unit that calculates an operation value based on two or more items of the operation time or communication amount or transceiver insertion count for each port as the consumption information of the port, and holds the operation value for each port; Have
Of the plurality of ports, a first port that is at least one operational port and a second port that is at least one standby port have a redundant configuration,
The port control unit sets the first port as a standby port based on the difference between the operating value of the first port and the operating value of the second port held by the consumption information management unit. A device characterized by switching two ports to an operation port . The apparatus of claim 1, comprising:
The consumption information management unit calculates an operation value based on at least one of an operation time and a communication amount for each port and the number of insertions, and holds the operation value for each port. The apparatus of claim 1, comprising:
  The redundant configuration is realized by link aggregation or port redundancy function.
A device characterized by. The apparatus of claim 1, comprising:
  The operation port is supplied with power, and the standby port is not supplied with power.
A device characterized by that. A first port which is an operation port for transmitting and receiving packets via the network and the first port;
And a second port which is a standby port having a redundant configuration for transmission / reception
A management method for managing devices,
  As the port consumption information, at least one of the operation time or the communication amount for each port
Get the number of transceiver insertions,
Calculate the operating value for each port based on the acquired wear information,
The calculated operating value is held in the consumption information management unit,
The operating value of the first port and the operating value of the second port held by the consumption information management unit
Based on the difference, the first port is used as a standby port and the second port is used as an operation port.
A management method characterized by switching.

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