CN109802856B - Method for managing multi-subframe board card by single network element - Google Patents
Method for managing multi-subframe board card by single network element Download PDFInfo
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Abstract
The invention discloses a method for managing a multi-subframe board card by a single network element, which comprises the following steps: grouping the subframes and setting a group number; configuring multicast addresses on a switch of a network element proxy unit and a lower board card thereof, and setting an Ethernet port for external communication as a multicast information passing prohibition; the network element agent unit multicasts the group number information to all ports of the switch periodically; the board card with changed group number information reconfigures an IP address, an MAC address and a slot position address according to the new group number information and the slot position address thereof, and stores the new group number information; the board card sends bootstrap information and re-request configuration information to the network element management unit by using the new IP address; and the network element management unit records the IP address, the group number information and the slot position address of the board card according to the bootstrap information and sends confirmation information and configuration data to the board card. The invention not only avoids the address conflict between the newly added board card and the original board card, but also avoids the forwarding of the board card data by the network element manager, reduces the complexity of software design and improves the network stability.
Description
Technical Field
The invention relates to a network equipment management technology and a network capacity expansion technology, in particular to a method for managing multi-subframe board cards by a single network element.
Background
In the era of high-speed networks, data services explosively increased by telecommunication operators generate massive service data, and the service data needs communication equipment for bearing and transmitting, which puts higher requirements on the capacity of the communication equipment and the supportable service types; therefore, it is a necessary trend to meet the increasing data demand by expanding, upgrading and transforming the existing network devices.
The cross capacity of the communication equipment determines the capacity of the communication equipment, and the type and number of service ports determine the access capability of the equipment. When the capacity of the equipment and the types of services supported by the equipment are enlarged, the existing sub-frame and board card slot positions of the equipment cannot meet the requirement of capacity enlargement, and a new sub-frame and board card must be added, so that the cross capacity of the equipment is increased, the number and types of service ports of the equipment are increased to improve the capacity of the communication equipment, and the interfaces of the equipment are enriched.
At present, there are two ways to implement adding a new subframe and board card to the device: one is to directly add a new subframe and a new board card under the existing network element; the other is equipment clustering, a plurality of network elements are combined to form a single network element which has high capacity and supports various services, the cross configuration of the equipment clustering network is more flexible, the protection mode is diversified, the communication efficiency of the network can be effectively improved, and the network management is optimized; in two ways of adding new subframes and board cards, the subframes and the board cards under different network elements need to be managed by the same network element management unit, and the same control unit carries out service scheduling, protection configuration and intelligent control, so that the board cards under the network elements can conveniently interact data.
However, the addresses of the board card of the newly added subframe and the board card of the original subframe are overlapped, if the new subframe and the board card are directly communicated with the network element management unit, the IP, MAC and slot addresses of the new board card and the original board card conflict, so that the new board card cannot be found and managed by the network element management unit, even the original board card is managed, and more serious service interruption is caused. If the newly added subframe is managed as a brand new network element, because a channel which can directly communicate between the new network element board card and the old network element board card does not exist, the new network element board card and the old network element board card cannot be subjected to unified cross management and configuration, efficient and accurate channel protection cannot be performed, network resources are wasted, and service scheduling and intelligent control of network equipment are not facilitated.
In summary, under the condition that the existing physical architecture of the device is not changed, how to manage the newly added subframe and the single board becomes a problem to be solved urgently for network management.
Disclosure of Invention
The invention aims to solve the technical problem of how to realize the management of the newly added subframe and the single board under the condition of unchanging the existing architecture.
In order to solve the technical problem, the technical scheme adopted by the invention is to provide a method for managing a plurality of subframe boards by a single network element, which comprises the following steps:
step S10, logically grouping the subframes, and respectively setting a group number for each subframe;
step S20, configuring multicast addresses on the switch of the network element proxy unit and all the board cards under the switch, and setting the Ethernet port of the network element proxy unit for external communication as the forbidden multicast information;
step S30, the network element proxy unit periodically multicasts the group number information of the subframe to all the ports of the managed switch;
step S40, the board card with changed group number information reconfigures the IP address, MAC address and slot position address of the board card according to the group number information and slot position address received this time, and saves the group number information received this time;
step S50, the board sends the IP address, the group number and the slot position address of the bootstrap board to the network element management unit by the newly configured IP address, and requests the configuration information again; and after receiving the bootstrap information and the re-request configuration information of the board card, the network element management unit records the IP address, the group number information and the slot position address of the board card and sends confirmation information and configuration data to the board card.
In the above method, the step S10 specifically includes:
setting a subframe configured with a network element management unit as a default group, wherein group number information is a default value;
and other subframes provided with the network element proxy units set non-conflicting group number information through dial switches on the network element proxy units.
In the above method, the step S20 specifically includes:
for a switch:
configuring all switch ports which are downwards contacted with the board card by the network element agent unit to support the passing of multicast information, setting the same multicast address, and configuring uplink ports of switch ports which are upwards contacted with other subframes to forbid the passing of the multicast information;
for the board card:
and setting a multicast support on all boards, and configuring the same multicast address as the port of the connected switch.
In the method, the uplink ports of the switches of all the network element proxy units are closed before the multicast address configuration of the switches is started, and the uplink ports are opened again until the multicast address configuration of the switches and the lower board cards thereof is completed.
In the method, the network element proxy unit periodically multicasts the group number information of the local subframe to all ports of the managed switch for 20 s.
In the above method, in step S40, the board saves the received group number information in the nonvolatile memory.
In the above method, the step S40 specifically includes the following steps:
step S41, the board card receives the group number information of the network element agent unit multicast;
step S42, judging whether the group number information received this time is consistent with the last group number information stored in the nonvolatile memory, if so, not doing any action; otherwise, go to step S43;
step S43, reconfiguring the IP address, the MAC address and the slot position address of the board card according to the group number information and the slot position address received this time;
step S44, storing the group number information received this time in a nonvolatile memory;
step S45, waiting for receiving the next multicast information.
In the above method, in step S50, if the board receives the confirmation information of the network element management unit, the bootstrap is stopped; and if the confirmation information is not received, the bootstrap is carried out periodically until the confirmation information of the network element management unit is received.
In the method, after sending the confirmation information to the board card, the network element management unit uploads the IP address, the group number information and the slot position address of the board card to the network manager.
In the method, after the board card is restarted, group number information is read from the nonvolatile memory, and an MAC address and an IP address are automatically configured according to the read group number information and the slot position address; and reconfiguring the MAC address, the IP address and the slot position address according to the received group number information and the slot position address until receiving new group number information multicast by the network element agent unit.
The invention groups the sub-frames and sets the group numbers, sends the group numbers to all the board cards connected downwards in the group in a multicast mode, redistributes IP addresses, MAC addresses and slot addresses according to the new group number information, and distinguishes the addresses from the addresses of the board cards connected downwards in other groups, thereby not only avoiding the address conflict between the newly added board cards and the original board cards, but also having the following beneficial effects:
(1) the realization of the invention does not need to change the existing network equipment in engineering, and when a new subframe and a board card are directly added for capacity expansion, the original subframe and the original board card are not influenced, and service interruption is not caused;
(2) all board cards under the same network element can directly communicate, so that a network element manager is prevented from forwarding board card data, the software design complexity is reduced, and the network stability is improved;
(3) the existing hardware resources are fully utilized, hardware redesign is avoided, and development cost and time are saved.
Drawings
Fig. 1 is a flowchart of a method for managing a multi-subframe board card by a single network element according to the present invention;
fig. 2 is a block diagram of an implementation of a method for managing a multi-subframe board card by a single network element according to the present invention;
FIG. 3 is a flowchart of step S40 according to the present invention;
FIG. 4 is a flowchart illustrating a process performed after a network element management unit or a network element proxy unit is restarted according to the present invention;
fig. 5 is a flowchart of processing after the board card is restarted according to the present invention.
Detailed Description
Under the condition that the existing architecture is not changed, the invention not only realizes the effective management of a plurality of equipment subframes and frame upper board cards under one network element; and the method can be used for combining a plurality of network elements into a single network element, effectively managing a plurality of equipment subframes and frame upper board cards of the single network element, optimizing network equipment management and improving network management efficiency. In the invention, for a single network element formed by merging a plurality of network elements, one network element in the plurality of network elements manages all subframes and board cards under the single network element, and the network element is called as a network Element Management Unit (EMU); the other network elements in the single network element are referred to as network element proxy units (FCUs). The invention is described in detail below with reference to the figures and specific examples.
As shown in fig. 1 and 2, the method for managing multiple subframe boards by a single network element provided by the present invention includes the following steps:
step S10, logically group the sub-boxes, and set a group number for each sub-box, respectively.
In the present invention, step S10 specifically includes:
the subframe configured with the network element management unit is used as a default group, and the group number information is a default value; and other subframes provided with the network element proxy units set non-conflicting group number information through dial switches on the FCU.
Step S20, configuring multicast addresses on the Switch (SW) of the network element proxy unit and all boards therebelow, and setting the ethernet port of the network element proxy unit for external communication as a prohibition for multicast information to pass through. In the present invention, step S20 specifically includes:
for a switch:
all switch ports which are downwards contacted with the board card by the FCU are configured to support the passing of multicast information, the same multicast address is set, and the upper connection ports (COM ports) of the switch ports which are upwards contacted with other subframes are configured to prohibit the passing of the multicast information;
for the board card:
and setting multicast support on all boards, and configuring a multicast address which is the same as the port of the connected switch so as to receive multicast information of the network element agent unit.
Since the configuration for prohibiting the multicast information from passing through the switch uplink port needs to be performed, the switch uplink ports of all the network element proxy units are closed before the switch multicast address configuration is started (before step S20 is implemented), and the uplink ports are opened again until the multicast address configuration of the switch and the lower board card thereof is completed.
Step S30, after the network element proxy unit completes configuration (including multicast address configuration of the switch and all boards), the network element proxy unit periodically multicasts the group number information of the local frame to all ports of the managed switch, the multicast period is generally 20S, that is, the group number information of the local frame is multicasted to each port of the managed switch once every 20S.
Step S40, after each board card receives the group number information multicast by the network element proxy unit, the slot address is expanded, the board card with changed group number information reconfigures the IP address, MAC address, and slot address of the board card according to the currently received group number information and slot address, and after the configuration is completed, stores the current group number information into the nonvolatile memory.
In the present invention, as shown in fig. 3, step S40 specifically includes the following steps:
step S41, the board card receives the group number information of the network element agent unit multicast;
step S42, judging whether the received group number information is consistent with the last group number information stored in the nonvolatile memory, if so, indicating that the group number information is not changed, and the IP address, the MAC address and the slot position address of the board card do not need to be reconfigured, and the original group number information is kept without any action; otherwise, go to step S43;
step S43, indicating the change of the group number information, reconfiguring the IP address, the MAC address and the slot position address of the board card according to the group number information and the slot position address received this time; the method specifically comprises the following steps:
generating an IP address, an MAC address and a slot position address according to an agreed rule by using the group number information and the slot position address, and then configuring the IP address to a management network port; the group number information and the slot number information are two parameters of an agreed rule, for example: the group number information is used as the third byte of the IP address, the slot position address is used as the fourth byte of the IP address, and the first byte and the second byte of the IP address are fixed; of course, other rules can be adopted, as long as it is ensured that the finally obtained IP address information does not conflict in the same IP domain and is an effective IP address;
the group number information represents the number of one or more subframes, the slot address represents a subframe interpolation slot number, and the two together represent the position information of the board, for example: n slot positions in m frames, m being the group number and n being the slot number; meanwhile, as long as the slot numbers of the sub-frames are not overlapped, a plurality of sub-frames can be combined together and coded into a group number;
step S44, after the configuration is finished, the group number information received this time is stored in a nonvolatile memory;
step S45, waiting for receiving the next multicast information.
Step S50, the board bootstrapping the information of the IP address, the group number, the slot position address and the like of the board and the re-request configuration information to the network element management unit by the newly configured IP address; and after receiving the bootstrap information and the re-request configuration information of the board card, the network element management unit records the IP address, the group number, the slot position address and other information of the board card and sends confirmation information and configuration data to the board card.
In the invention, if the board card receives the confirmation information of the network element management unit, the bootstrap is stopped; and if the confirmation information is not received, the bootstrap is carried out periodically until the confirmation information of the network element management unit is received.
In step S50, after sending the confirmation information to the board, the network element management unit uploads the information such as the IP address, the group number, and the slot address of the board to the network manager, so that the network manager can find and configure the board.
In the invention, after the board card is restarted, the group number information is read from a nonvolatile memory (such as Flash, EEPROM and the like), and the MAC address and the IP address are automatically configured according to the read group number information and the slot address (namely, the MAC address and the IP address are generated according to the convention rule by using the group number information stored in the nonvolatile memory before use and the slot address read from the board card hardware and are configured on a management network port); and reconfiguring the MAC address, the IP address and the slot position address according to the received group number information and the slot position address until receiving new group number information multicast by the network element agent unit.
In the present invention, as shown in fig. 4, the processing flow after the network element management unit or the network element proxy unit is restarted each time specifically includes the following steps:
step S101, a network element management unit or a network element proxy unit is powered on;
step S102, judging whether the group number information is a default value, if so, indicating that the group number information is a network element management unit, directly using the default value without modifying the group number of all board cards under the subframe, and executing step S107; if not, indicating that the mobile terminal is a network element proxy unit, executing step S103;
step S103, closing an uplink port of the management switch, and configuring a network element proxy unit (FCU) and multicast addresses of all board cards below the FCU;
step S104, configuring the switch to contact the upper connection port of the switch port of other subframes upwards as a non-multicast support port, and to contact the port of the board card downwards as a multicast support port, and opening the upper connection port of the switch;
step S105, the network element proxy unit multicasts the group number information of the subframe to all ports of the switch managed by the network element proxy unit;
step S106, after waiting for a preset multicast period (generally 20S), executing step S105;
step S107, the network element management unit EMU judges whether the board bootstrap information and the request configuration information are received, if yes, step S108 is executed; otherwise, go to step S109;
step S108, sending bootstrap confirmation information and configuration data;
step S109, after waiting for a preset multicast period, executes step S107.
In the present invention, as shown in fig. 5, the processing flow after each time the board is powered on and restarted specifically includes the following steps:
step S201, electrifying the board card;
step S202, reading stored group number information from a nonvolatile memory;
step S203, automatically configuring the MAC address and the IP address of the management port according to the read group number information, and configuring a multicast address;
step S204, initializing the board card;
step S205, judging whether a preset multicast period is waited for, if not, continuing to wait, because the FCU sends the multicast once in the preset multicast period, waiting for the preset multicast period aims to ensure that the board card under the FCU agent receives the group number information for at least 1 time after restarting, and avoiding immediately revising the group number after entering a normal working state as much as possible; otherwise, go to step S206;
step S206, judging whether the received group number information is the same as that in the volatile memory, if so, executing step S210; otherwise, go to step S207;
step S207, reconfiguring the IP address, the MAC address and the slot position address of the management port according to the new group number information, and storing the group number information received at this time into a volatile memory;
step S208, the board card sends bootstrap information to the network element management unit and requests configuration again;
step S209, the board card automatically configures after receiving the confirmation information and the configuration information of the network element management unit;
step S210, enter a normal operating state, and then execute step S206.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A method for managing a plurality of subframe board cards by a single network element is characterized by comprising the following steps:
step S10, logically grouping the subframes, and respectively setting a group number for each subframe;
step S20, configuring multicast addresses on the switch of the network element proxy unit and all the board cards under the switch, and setting the Ethernet port of the network element proxy unit for external communication as the forbidden multicast information;
step S30, the network element proxy unit periodically multicasts the group number information of the subframe to all the ports of the managed switch;
step S40, the board card with changed group number information reconfigures the IP address, MAC address and slot position address of the board card according to the group number information and slot position address received this time, and saves the group number information received this time;
step S50, the board sends the IP address, the group number information and the slot position address of the bootstrap board to the network element management unit by the newly configured IP address, and requests the configuration information again; and after receiving the bootstrap information and the re-request configuration information of the board card, the network element management unit records the IP address, the group number information and the slot position address of the board card and sends confirmation information and configuration data to the board card.
2. The method for a single network element to manage multiple subframe boards as claimed in claim 1, wherein the step S10 specifically includes:
setting a subframe configured with a network element management unit as a default group, wherein group number information is a default value;
and other subframes provided with the network element proxy units set non-conflicting group number information through dial switches on the network element proxy units.
3. The method for a single network element to manage multiple subframe boards as claimed in claim 1, wherein the step S20 specifically includes:
for a switch:
configuring all switch ports which are downwards contacted with the board card by the network element agent unit to support the passing of multicast information, setting the same multicast address, and configuring uplink ports of switches which are upwards contacted with other subframes to forbid the passing of the multicast information;
for the board card:
and setting a multicast support on all boards, and configuring the same multicast address as the port of the connected switch.
4. The method for a single network element to manage multiple subframe boards as claimed in claim 3, further comprising the steps of: and closing the uplink ports of the switches of all the network element proxy units before starting the multicast address configuration of the switches until the multicast address configuration of the switches and the lower board cards thereof is completed, and then opening the uplink ports.
5. The method as claimed in claim 3, wherein the multicast period for the network element agent unit to periodically multicast the group number information of the local sub-frame to all ports of the managed switch is 20 s.
6. The method of claim 1, wherein in step S40, the board stores the received group number information in the non-volatile memory.
7. The method for managing multiple subframe boards by a single network element according to claim 6, wherein the step S40 specifically includes the following steps:
step S41, the board card receives the group number information of the network element agent unit multicast;
step S42, judging whether the group number information received this time is consistent with the last group number information stored in the nonvolatile memory, if so, executing step S45; otherwise, go to step S43;
step S43, reconfiguring the IP address, the MAC address and the slot position address of the board card according to the group number information and the slot position address received this time;
step S44, storing the group number information received this time in a nonvolatile memory;
step S45, waiting for receiving the next multicast information.
8. The method according to claim 1, wherein in step S50, if the board receives the confirmation information of the network element management unit, the bootstrap is stopped; and if the confirmation information is not received, the bootstrap is carried out periodically until the confirmation information of the network element management unit is received.
9. The method according to claim 1, wherein the network element management unit uploads the IP address, the group number information, and the slot address of the board to the network manager after sending the confirmation information to the board.
10. The method for a single network element to manage multi-subframe board card as claimed in claim 6, wherein each time the board card is restarted, the group number information is read from the non-volatile memory, and the MAC address and the IP address are automatically configured according to the read group number information and the slot address; and reconfiguring the MAC address, the IP address and the slot position address according to the received group number information and the slot position address until receiving new group number information multicast by the network element agent unit.
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| CN112087531A (en) * | 2020-08-14 | 2020-12-15 | 陕西千山航空电子有限责任公司 | Method for on-line configuring network address |
| CN114520801A (en) * | 2022-01-19 | 2022-05-20 | 深圳市联洲国际技术有限公司 | Communication method of frame type network equipment |
| CN114430403B (en) * | 2022-04-07 | 2022-06-17 | 湖南戎腾网络科技有限公司 | Addressing method and device between board cards and computer equipment |
| CN117499371A (en) * | 2023-10-27 | 2024-02-02 | 众信方智(苏州)智能技术有限公司 | Method and system for automatically distributing card ID according to slot position |
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