CN114244787B - Method and device for realizing high-reliability management port - Google Patents

Method and device for realizing high-reliability management port Download PDF

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CN114244787B
CN114244787B CN202111492125.7A CN202111492125A CN114244787B CN 114244787 B CN114244787 B CN 114244787B CN 202111492125 A CN202111492125 A CN 202111492125A CN 114244787 B CN114244787 B CN 114244787B
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port
mng
management
service
bus1
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CN114244787A (en
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陈波
靳韬
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Sichuan Andi Technology Industrial Co Ltd
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Sichuan Andi Technology Industrial Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/25Routing or path finding in a switch fabric
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/74Address processing for routing
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/50Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)

Abstract

The invention discloses a method and a device for realizing a highly reliable management port of network equipment in a transparent mode, wherein the network equipment comprises at least one management port MNG and a plurality of service ports, each service port comprises a service port BUS1 and a service port BUS2, the service port BUS2 is connected with a cloud, the management port MNG is connected with a port 1, the service port BUS1 is connected with a port 2, the port 1 and the port 2 are arranged in a switch, the switch is also provided with a port 0, and the port 0 is connected with a PC (personal computer), and the method comprises the following steps: s1: forbidding a management port MNG to forward the message; s2: forbidding the management port MNG to learn the mac address; s3: and the aging time of the mac forwarding table of the business interface BUS1 is reduced. When the management port and the service port are connected to the same switching domain, the normal data path and the normal message transmission are ensured, the blocking of the data path is reduced, the functionality of the management port is improved, and the networking freedom of network management personnel is improved.

Description

Method and device for realizing high-reliability management port
Technical Field
The present invention relates to the field of data communication technologies, and in particular, to a method and an apparatus for implementing a highly reliable management interface for a network device in a transparent mode.
Background
Many communication devices, such as encryption engines, firewalls, satellite modems, may operate in a transparent mode. By "transparent" it is meant that, from the perspective of route switching, the device only works at the two-layer switching level, and does not involve the ip route level, and therefore, does not affect and is "transparent" to the network deployment of the user. When the device is in a transparent mode, all network interfaces form a bridge, the bridge needs to construct a MAC forwarding table and forward a message according to the following forwarding rule based on the MAC address, wherein the port A receives the message of the source MAC = MACA, and the message of the destination MAC = MACA is forwarded next time and then is sent out from the port A.
Many communication devices also have a management port, which is a specific network interface on the communication device, and the interface does not forward messages, but only is used for accessing the device itself. Normally, the forwarding function of the management port is disabled to meet the function requirement, but when the management port and the service port are connected to the same switch domain, the message may be discarded.
Disclosure of Invention
In order to solve the deficiency of the prior art, the invention provides a method and a device for realizing a high-reliability management port of network equipment in a transparent mode, when the management port and a service port are connected to the same switching domain, the normal data path and the normal message transmission are ensured, the blocking of the data path is reduced, the functionality of the management port is improved, and the networking freedom degree of network management personnel is improved.
In order to realize the purpose of the invention, the following scheme is adopted:
a method for realizing a high-reliability management port by network equipment in a transparent mode is disclosed, wherein the network equipment comprises at least one management port MNG and a plurality of service ports, each service port comprises a service port BUS1 and a service port BUS2, the management port MNG is used for connecting a port 1 of a switch, the service port BUS1 is used for connecting a port 2 of the switch, the service port BUS2 is used for connecting a cloud, the switch is also provided with a port 0, and the port 0 is connected with a PC, the method comprises the following steps:
s1: forbidding a management port MNG of the network equipment to forward the message;
after the management port MNG is forbidden to forward the message, the message received from the management port MNG only can access the service of the network equipment, and the message of which the destination address is not the network equipment is discarded;
s2: forbidding the management port MNG to learn the mac address;
the management port MNG and the service port BUS1 are connected to the same switch, when the PC and the cloud equipment are in two-way communication, the PC sends a message by using the MAC address MAC1 of the PC as a source MAC, the management port MNG is forbidden from learning the MAC address, and the message from the cloud, which is received by the network equipment through the service port BUS2, is ensured to be sent from the service port BUS1, so that the message sent by the cloud equipment can reach the port 2 of the switch through the service port BUS1 of the network equipment and finally reach the PC;
s3: reducing the aging time of a mac forwarding table of the business interface BUS1;
on the basis of the step S2, the position of the PC is changed, the PC is directly connected to the management port MNG, the PC is only used for accessing the service of the network equipment, the PC uses the MAC address MAC1 of the PC as a source MAC to send a message for accessing the network equipment, and the network equipment associates the MAC1 with the service port BUS1, so that the reply message is only sent to the service port BUS1 and cannot be sent to the PC through the management port MNG, the aging time of a MAC forwarding table of the service port BUS1 is reduced, and the reply message is ensured to be quickly transmitted to the PC from the management port MNG.
Further, the services of the network device include WEB services and SSH services.
Further, S2 further includes: and updating the mac forwarding tables of the switch and the network equipment while prohibiting the management port MNG from learning the mac address, wherein the switch associates the mac address of the network equipment with the port 2, and the network equipment associates the mac address of the PC with the service port BUS1.
The utility model provides a network equipment realizes device of high reliable management mouth during transparent mode, and network equipment includes at least one management mouth MNG and a plurality of business mouth, and the business mouth includes business mouth BUS1 and business mouth BUS2, and management mouth MNG is used for the port 1 of connecting the switch, and business mouth BUS1 is used for the port 2 of connecting the switch, and business mouth BUS2 is used for connecting the high in the clouds, and the switch still is equipped with port 0, and port 0 connects the PC, and the device includes:
the transmission forbidding module is used for forbidding the management port MNG of the network equipment to forward the message, so that the message received from the management port MNG only can access the service of the network equipment and discards the message of which the destination address is not the network equipment;
the learning forbidding module is used for forbidding the management port MNG to learn the mac address so as to prevent the network equipment from associating the mac address with the management port MNG, discarding the message sent from the management port MNG when the service port BUS2 receives the message and forwards the message, and enabling the message sent from the service port BUS1 to be sent normally and arrive at the PC after arriving at the port 2 of the switch;
and the time reducing module is used for reducing the aging time of the mac forwarding table of the business port BUS1 and quickly eliminating the mac forwarding table of the business port BUS1 when the PC is directly connected with the management port MNG, so that the message of the network equipment is sent from the management port MNG and the business port BUS1, and the message is transmitted to the PC from the management port MNG.
Further, the services of the network device include WEB services and SSH services.
Further, the device comprises an updating module, which is used for updating the mac forwarding tables of the switch and the network equipment when the learning module is forbidden to forbid the management port MNG from learning the mac address of the PC, so as to associate the mac address of the network equipment with the port 2 and associate the mac address of the PC with the service port BUS1.
An electronic device comprising at least one processor and a memory; wherein the memory stores computer execution instructions; when the at least one processor executes the computer execution instructions stored in the memory, the at least one processor is enabled to execute the method for realizing the high-reliability management interface of the network device in the transparent mode.
A computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, controls a device on which the storage medium resides to implement the method for a network device to implement a highly reliable management interface when the device executes the transparent mode described above.
The invention has the beneficial effects that:
when the management port MNG and the service port are connected to the same switching domain, if the network equipment associates the mac address with the management port MNG, when the network equipment receives messages with the same address from other service ports, because the management port MNG has no function of forwarding the messages, the messages are discarded, data loss is caused, and the performance of the equipment is greatly influenced.
Drawings
FIG. 1 is a connection diagram of a PC connection switch according to an embodiment of the present invention;
FIG. 2 is a connection diagram of a PC direct connection management port MNG according to an embodiment of the present invention;
FIG. 3 is a flow chart of a method of an embodiment of the present invention;
fig. 4 is a diagram showing the structure of an apparatus according to an embodiment of the present invention.
Detailed Description
Example 1
As shown in fig. 3, a method for implementing a high-reliability management interface for a network device in a transparent mode according to this embodiment is provided.
As shown in fig. 1, the network device includes at least one management port MNG and a plurality of service ports, the service ports include a service port BUS1 and a service port BUS2, the management port MNG is used for connecting a port 1 of the switch, the service port BUS1 is used for connecting a port 2 of the switch, the service port BUS2 is used for connecting a cloud, the switch is further provided with a port 0, the port 0 is connected with a PC, and the method includes the steps of:
s1: forbidding a management port MNG of the network equipment to forward the message;
after the message is forbidden to be forwarded by the management port MNG, the message received from the management port MNG can only access the service of the network equipment, the service of the network equipment comprises WEB service and SSH service, and the message with the destination address not being the network equipment is discarded;
s2: forbidding the management port MNG to learn the mac address;
when the management port MNG and the service port BUS1 are connected to the same switch, and the PC and the cloud equipment are in two-way communication, the PC sends a message by using the MAC address MAC1 of the PC as a source MAC, and the port 1 and the port 2 can both forward the message to the network equipment.
If the MAC address is not prohibited from being learned by the management port MNG and the port 1 of the switch is later than the port 2 to send a message, the network equipment establishes a MAC forwarding table and associates the MAC1 with the management port MNG; the network equipment receives a message with the destination address of MAC1 from a business port BUS2, and the message is sent from a management port MNG according to the MAC forwarding table rule; because the forwarding function of the management port MNG is forbidden previously, the message which is received from the service port BUS2 and is forwarded from the management port MNG is discarded by mistake;
after prohibiting the management port MNG from learning the MAC address of the PC, the network device will not establish the forwarding table entry of the MAC1 at the management port MNG; because there is no forwarding table entry of MAC1, when the message received by the service port floods, the message will be sent out by both the management port MNG and the service port BUS1, although the message sent out by the management port MNG will be discarded, the message sent out by the service port BUS1 will be sent out normally, and will reach port 2 of the switch, and finally reach the PC; meanwhile, both the switch and the network equipment update the MAC forwarding tables of the switch and the network equipment, the switch associates the MAC address of the network equipment with the port 2, and the network equipment associates the MAC address MAC1 of the PC with the service port BUS1;
s3: reducing the aging time of a mac forwarding table of the business interface BUS1;
as shown in fig. 2, the PC is changed in position on the basis of fig. 1 and is directly connected to the management port MNG. The communication between the PC and the network device will be abnormal:
the PC is only used to access the services of the network device itself, the PC uses its MAC address MAC1 as the source MAC to send a message to access the network device, and the network device receives the message and sends back a reply message. Because the network equipment associates the MAC address MAC1 of the PC with the service port BUS1, at the moment, the reply message is only sent to the service port BUS1 and cannot be sent to the PC through the management port MNG.
The aging time of the MAC forwarding table of the network device is reduced, for example, after 5s is reduced and 5s passes, the forwarding table entry of the MAC1 disappears, the message sent by the network device is sent from two ports, namely, the management port MNG and the service port BUS1, and finally the PC receives the reply message, and the data path is normal.
Example 2
As shown in fig. 4, the apparatus for implementing a high-reliability management interface for a network device in a transparent mode provided in this embodiment includes:
the transmission forbidding module is used for forbidding the management port MNG of the network equipment to forward the message, so that the message received from the management port MNG only can access the service of the network equipment and discards the message of which the destination address is not the network equipment; the network equipment comprises at least one management port MNG and a plurality of service ports, each service port comprises a service port BUS1 and a service port BUS2, the management port MNG is used for being connected with a port 1 of the switch, the service port BUS1 is used for being connected with a port 2 of the switch, the service port BUS2 is used for being connected with a cloud, the switch is further provided with a port 0, and the port 0 is connected with a PC;
the learning forbidding module is used for forbidding the management port MNG to learn the mac address so as to prevent the network equipment from associating the mac address with the management port MNG, and when the service port BUS2 receives and forwards the message, the message is ensured to be sent out from the service port BUS1 and reach the PC after reaching the port 2 of the switch;
and the time reduction module is used for reducing the aging time of the mac forwarding table of the business port BUS1 when the PC is directly connected with the MNG. When the PC is directly connected with the management port MNG, the mac forwarding table of the service port BUS1 is quickly eliminated, so that the message of the network equipment is sent from the management port MNG and the service port BUS1, and the message is transmitted to the PC from the management port MNG.
More specifically, the services of the network device include WEB services and SSH services.
More specifically, the system further comprises an updating module, which is used for updating the mac forwarding tables of the switch and the network device when the learning prohibition module prohibits the management port MNG from learning the mac address of the PC, so that the mac address of the network device is associated with the port 2, and the mac address of the PC is associated with the service port BUS1.
Example 3
The embodiment provides an electronic device comprising at least one processor and a memory; wherein the memory stores computer execution instructions; when the at least one processor executes the computer-executable instructions stored in the memory, the at least one processor is caused to perform the method of the embodiment 1 for implementing a high-reliability management interface for a network device in the transparent mode.
Example 4
The present embodiment provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the method for implementing a high-reliability management interface by a network device when the device in which the storage medium is located executes the transparent mode in embodiment 1 is controlled.
The above embodiments are only for illustrating the technical ideas and features of the present invention, and are not meant to be exclusive or limiting of the present invention. It will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention.

Claims (8)

1. A method for realizing a high-reliability management port by network equipment in a transparent mode is characterized in that the network equipment comprises at least one management port MNG and a plurality of service ports, each service port comprises a service port BUS1 and a service port BUS2, the management port MNG is used for connecting a port 1 of a switch, the service port BUS1 is used for connecting a port 2 of the switch, the service port BUS2 is used for connecting a cloud, the switch is further provided with a port 0, and the port 0 is connected with a PC, and the method comprises the following steps:
s1: forbidding a management port MNG of the network equipment to forward the message;
after the management port MNG is forbidden to forward the message, the message received from the management port MNG only can access the service of the network equipment, and the message of which the destination address is not the network equipment is discarded;
s2: forbidding the management port MNG to learn the mac address;
the management port MNG and the service port BUS1 are connected to the same switch, when the PC and the cloud equipment are in two-way communication, the PC uses the MAC address MAC1 of the PC as a source MAC to send a message, the management port MNG is forbidden to learn the MAC address, the network equipment discards the message sent from the management port MNG, the message received through the service port BUS2 and coming from the cloud is sent normally from the service port BUS1 and arrives at the PC after arriving at the port 2 of the switch;
s3: reducing the aging time of a mac forwarding table of the business interface BUS1;
on the basis of the step S2, the position of the PC is changed and the PC is directly connected to the management port MNG, the PC is only used for accessing the service of the network equipment at the moment, the PC uses the MAC address MAC1 of the PC as a source MAC to send a message for accessing the network equipment, the network equipment associates the MAC1 with the service port BUS1, the reply message is only sent to the service port BUS1, and the reply message is quickly transmitted to the PC from the management port MNG after the aging time of a MAC forwarding table of the service port BUS1 is reduced.
2. The method for network device to implement high reliability management interface in transparent mode according to claim 1, wherein the services of the network device itself include WEB services, SSH services.
3. The method for implementing a high reliability management interface for a network device in a transparent mode as claimed in claim 1, wherein S2 further comprises: and updating the mac forwarding tables of the switch and the network equipment while prohibiting the management port MNG from learning the mac address, wherein the switch associates the mac address of the network equipment with the port 2, and the network equipment associates the mac address of the PC with the service port BUS1.
4. The utility model provides a network equipment realizes device of high reliable management mouth during transparent mode, its characterized in that, network equipment include at least one management mouth MNG and a plurality of business mouth, and the business mouth includes business mouth BUS1 and business mouth BUS2, and management mouth MNG is used for connecting the port 1 of switch, and business mouth BUS1 is used for connecting the port 2 of switch, and business mouth BUS2 is used for connecting the high in the clouds, and the switch still is equipped with port 0, and port 0 connects PC, and the device includes:
a transmission forbidding module, configured to forbid a management port MNG of the network device from transmitting a packet, so that the packet received from the management port MNG can only access the service of the network device itself, and discard a packet whose destination address is not the network device itself;
the learning forbidding module is used for forbidding the management port MNG to learn the mac address so as to prevent the network equipment from associating the mac address with the management port MNG, discarding the message sent from the management port MNG when the service port BUS2 receives the message and forwards the message, and enabling the message sent from the service port BUS1 to be sent normally and arrive at the PC after arriving at the port 2 of the switch;
and the time reducing module is used for reducing the aging time of the mac forwarding table of the business port BUS1 and quickly eliminating the mac forwarding table of the business port BUS1 when the PC is directly connected with the management port MNG, so that the message of the network equipment is sent from the management port MNG and the business port BUS1, and the message is transmitted to the PC from the management port MNG.
5. The apparatus for implementing a highly reliable management interface for network devices in a transparent mode according to claim 4, wherein the services of the network devices themselves include WEB services and SSH services.
6. The apparatus for implementing a highly reliable management port in a transparent mode as claimed in claim 4, further comprising an updating module, configured to update the mac forwarding tables of the switch and the network device to associate the mac address of the network device with port 2 and associate the mac address of the PC with service port BUS1, when the learning module is prohibited to prohibit the management port MNG from learning the mac address of the PC.
7. An electronic device comprising at least one processor and a memory; wherein the memory stores computer execution instructions; the method is characterized in that when at least one processor executes computer execution instructions stored in a memory, the at least one processor is enabled to execute the method for realizing the high-reliability management port of the network equipment in the transparent mode according to any one of claims 1 to 3.
8. A computer-readable storage medium, on which a computer program is stored, wherein when the computer program is executed by a processor, the method for a network device to implement a high-reliability management interface when the device in which the storage medium is located executes the transparent mode according to any one of claims 1 to 3 is controlled.
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