WO2020011135A1 - Transmission de paquets - Google Patents

Transmission de paquets Download PDF

Info

Publication number
WO2020011135A1
WO2020011135A1 PCT/CN2019/095137 CN2019095137W WO2020011135A1 WO 2020011135 A1 WO2020011135 A1 WO 2020011135A1 CN 2019095137 W CN2019095137 W CN 2019095137W WO 2020011135 A1 WO2020011135 A1 WO 2020011135A1
Authority
WO
WIPO (PCT)
Prior art keywords
arp request
request message
target
information
feature value
Prior art date
Application number
PCT/CN2019/095137
Other languages
English (en)
Chinese (zh)
Inventor
单丽娜
Original Assignee
新华三技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 新华三技术有限公司 filed Critical 新华三技术有限公司
Publication of WO2020011135A1 publication Critical patent/WO2020011135A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/09—Mapping addresses
    • H04L61/10—Mapping addresses of different types
    • H04L61/103—Mapping addresses of different types across network layers, e.g. resolution of network layer into physical layer addresses or address resolution protocol [ARP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H04W28/065—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information using assembly or disassembly of packets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information

Definitions

  • an access controller (English: Access Controller, AC for short) and an access point (English: Access Point, AP for short) are usually set in a wireless network.
  • the AC will establish and maintain at least one virtual basic service for the AP.
  • Set (English: Basic Service Set, referred to as BSS) interface.
  • the virtual BSS interface may belong to the same virtual local area network (English: Virtual Local Area Network, abbreviated as VLAN), or may belong to different VLANs.
  • the AC After the AC receives the first Address Resolution Protocol (ARP) request message sent by the sender in a certain VLAN, for each virtual BSS interface in the VLAN, the AC responds to the first The ARP request message is copied, and then the first ARP request is encapsulated for the virtual BSS interface to obtain a second ARP request message, and then the second ARP request message is sent to the target AP to which the virtual BSS interface belongs.
  • ARP Address Resolution Protocol
  • an AC supporting 2048 APs usually needs to maintain more than 60,000 virtual BSS interfaces. If these virtual BSS interfaces belong to the same VLAN, when the AC receives ARP request packets in this VLAN, the AC needs to apply More than 60,000 copies of the ARP request message are then encapsulated and then forwarded to each virtual BSS interface.
  • FIG. 1 is an example diagram of a network system provided by an embodiment of the present application.
  • FIG. 2 is a flowchart of a message transmission method according to an embodiment of the present application.
  • FIG. 3 is a flowchart of a method for modifying a second ARP request message according to an embodiment of the present application
  • FIG. 4 is a schematic structural diagram of a message transmission apparatus according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a message transmission apparatus according to an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a message transmission apparatus according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of an AC according to an embodiment of the present application.
  • the AC After the AC receives the first ARP request packet sent by the sender in a VLAN, the AC copies the first ARP request packet for each virtual BSS interface in the VLAN. Then encapsulate the first ARP request for the virtual BSS interface to obtain a second ARP request message, and then send the second ARP request message to the target AP to which the virtual BSS interface belongs.
  • the AC needs to consume a large amount of resources to process the replication and encapsulation of ARP request packets, resulting in low processing efficiency of the AC.
  • the embodiment of the present application provides a message transmission method, and the method can be applied to a scenario where an AC broadcasts an ARP request message.
  • FIG. 1 this is an example diagram of a network system provided in an embodiment of the present application.
  • the system includes: an AC, an access switch, AP1, AP2, terminal 1, terminal 2, and terminal 3.
  • the AC is connected to AP1 and AP2 through the access switch, and the service set identifiers (English: Service Set Identifier, SSID) provided by AP1 and AP2 are SSID1 and SSID2 respectively, and the AC is established by SSID1 of AP1 and SSID2 of AP2. It also maintains virtual BSS interface 1 and virtual BSS interface 2.
  • SSID Service Set Identifier
  • Terminals 1 and 2 access the network through AP1 and AP2, respectively, and terminal 3 accesses the network through the access switch.
  • the virtual BSS interface 1, the virtual BSS interface 2, the interface of the access switch connected to terminal 3, and the interface of the AC connected to the access switch belong to VLAN 1.
  • An embodiment of the present application provides a method for transmitting a message, and the method is applied to an AC.
  • the AC may determine the target virtual BSS interface corresponding to the VLAN to which the first ARP request message belongs and the target AP to which the target virtual BSS interface belongs according to the received first ARP request message, and then, according to the first ARP request message,
  • the first wireless payload and the pre-stored encapsulation information directly modify the pre-stored second ARP request message, eliminating the need to duplicate the first ARP request message, which improves the processing efficiency of the AC.
  • the specific processing flow is as follows:
  • Step 201 Receive a first ARP request message to be broadcast.
  • the first ARP request message carries a first wireless payload (English: Wireless Payload).
  • the terminal when a terminal needs to obtain the MAC address corresponding to the first terminal according to the Internet Protocol (English: Internet, Protocol, IP for short) address of another terminal (which may be referred to as the first terminal), the terminal may send an ARP request message.
  • the first wireless payload may include a sender IP address, a sender MAC address, and a receiver (ie, the first terminal) IP address.
  • the terminal when the terminal obtains its own IP address through Dynamic Host Configuration Protocol (English: Dynamic Host Configuration Protocol, DHCP), in order to prevent the acquired IP address from conflicting with the IP address of other terminals, the terminal can send an ARP request. Message.
  • Dynamic Host Configuration Protocol English: Dynamic Host Configuration Protocol, DHCP
  • the terminal 3 may query the MAC address of the terminal 2 in a locally pre-stored ARP table according to the IP address of the terminal 2. If the MAC address of terminal 2 is not stored in the ARP table, terminal 3 may send a first ARP request message to the access switch. For example, in the first wireless payload carried in the first ARP request message sent by the terminal 3, the sending end IP address is the IP address of the terminal 3, the sending end MAC address is the MAC address of the terminal 3, and the receiving end IP address Is the IP address of terminal 2.
  • the access switch may add VLAN information to the first ARP request message according to a preset VLAN policy. Subsequently, the access switch may send the first ARP request packet to the AC according to the VLAN information.
  • the AC may receive a first ARP request message sent by the terminal through the access switch, where the first ARP request message carries the first wireless payload and VLAN information.
  • the first ARP request message sent by the terminal may also carry a protocol header, which includes an Ethernet header, an IP header, and user data.
  • Report protocol English: UserDatagramProtocol, UDP for short
  • control and configuration protocol English: Control and Wireless Access Points Protocol, CAPWAP
  • the access switch queries the local pre-stored forwarding table according to the destination MAC address in the Ethernet header, and sends the first ARP request message to the AC through the interface connected to the AC.
  • Step 202 Determine a target virtual BSS interface corresponding to the VLAN to which the first ARP request message belongs, and a target AP to which the target virtual BSS interface belongs.
  • the AC may store the correspondence between the AP, the virtual BSS interface, and the VLAN in advance. After receiving the first ARP request message, the AC can analyze the first ARP request message to obtain the VLAN information carried in the first ARP request message. Then, the AC may query the target virtual BSS interface corresponding to the VLAN and the AP corresponding to the target virtual BSS interface (that is, the target AP) according to the VLAN information.
  • virtual BSS interface 1 and virtual BSS interface 3 both belong to AP1, and virtual BSS interface 1 belongs to VLAN 1, virtual BSS interface 3 belongs to VLAN 2, virtual BSS interface 2 and virtual BSS interface 4 belong to AP2, and Virtual BSS interface 2 belongs to VLAN1, virtual BSS interface 4 belongs to VLAN2, and the VLAN information carried in the first ARP request message is VLAN1.
  • the AC determines the target virtual BSS interface as virtual BSS interface 1 and virtual BSS interface 2 and AP1 and AP2 as target APs according to VLAN 1 carried in the first ARP request message.
  • Step 203 Modify the pre-stored second ARP request message according to the first wireless payload of the first ARP request message and the pre-stored encapsulation information.
  • the encapsulation information includes radio frequency information of the target virtual BSS interface and next hop address information corresponding to the target AP.
  • the AC can generate a forwarding table based on the information of the AP.
  • the forwarding table includes several forwarding entries, and each forwarding entry includes an index value, a destination address, and a next-hop VLAN. , Next hop MAC address and characteristic value.
  • the characteristic value is generated according to the forwarding information corresponding to the AP in the forwarding table.
  • each feature value in the forwarding table can uniquely identify the forwarding information corresponding to an AP.
  • the characteristic value is also updated accordingly.
  • the characteristic value may be a devil number or other character string, which is not limited in this application.
  • the characteristic value may be randomly assigned by the AC, or may be calculated by the AC according to a preset characteristic value algorithm (such as a hash algorithm) and forwarding information.
  • the index value is used to uniquely identify a forwarding entry; the destination address is the IP address of the AP; the next-hop VLAN and next-hop MAC address are the next-hop VLAN and next-hop MAC corresponding to the AP.
  • the AC may allocate a buffer space for the AP, and the buffer space may include a preset number of data blocks, where each data block may store a second ARP request message.
  • the number of data blocks (that is, the preset number) is greater than or equal to the number of virtual BSS interfaces corresponding to the AP.
  • the second ARP request packet is an ARP packet obtained by the AC, including a protocol header and a wireless payload.
  • the protocol header includes an Ethernet header, an IP header, a UDP header, and a CAPWAP header.
  • the encapsulation process of the second ARP request message may be as follows.
  • the AC may generate a second ARP request message according to the address information of the device, the address information of each AP, and the next hop address information of each AP in the current forwarding table.
  • the address information may include an IP address, a MAC address, a UDP port number, and the like, and the next hop address information may include a next hop VLAN, a next hop MAC address, and next hop exit information.
  • the AC can set the source MAC address in the Ethernet header to the MAC address of the AC, the destination MAC address to the next hop MAC address (that is, MAC1), and the VLAN to the next hop VLAN (that is, VLAN1). ; Set the source IP address in the IP header to the IP address of the AC, the destination IP to the IP address of AP1, the source port number in the UDP header to the UDP port number of the AC, and the destination port number to the UDP port of AP1 number.
  • the AC may also create the AP information table, and the AP information table is a table for storing AP information of each AP.
  • the AC may store the characteristic value and index value of the AP in the forwarding table into the AP information table, and set the characteristic value in the data block corresponding to the AP as the characteristic value of the AP in the forwarding table.
  • the characteristic value is generated according to the forwarding information corresponding to the AP.
  • each feature value in the AP information table can uniquely identify forwarding information corresponding to an AP (that is, an entry corresponding to the AP in the forwarding table).
  • the characteristic value of the AP in the forwarding table and the characteristic value of the AP in the AP information table can be compared to determine whether the forwarding information corresponding to the AP has been updated.
  • the characteristic value may be a devil number or other character string, which is not limited in this application.
  • the AP information table may further include next hop address information corresponding to the AP, and the next hop address information may include next hop VLAN, next hop MAC address, and next hop exit information.
  • the AC After the AC determines the target virtual BSS interface and target AP, it can randomly select a data block in the buffer space, and then modify the data block in the data block according to the first wireless payload of the first ARP request message and the pre-stored encapsulation information.
  • the second ARP request message After the AC determines the target virtual BSS interface and target AP, it can randomly select a data block in the buffer space, and then modify the data block in the data block according to the first wireless payload of the first ARP request message and the pre-stored encapsulation information.
  • the second ARP request message The second ARP request message.
  • next-hop MAC address and next-hop VLAN in the Ethernet header can be modified; the radio frequency information in the CAPWAP header; and the check field in the second ARP request message.
  • the specific modification process will be explained in detail later.
  • the AC can release the cache space corresponding to the AP.
  • the AC may select multiple data blocks in the buffer space, and according to the first wireless payload of the first ARP request message and the pre-stored encapsulation information, respectively, Modify the second ARP request message in each data block.
  • Step 204 Send the modified second ARP request message to the target AP.
  • the AC modifies the second ARP request message
  • it can send the modified second ARP request message to the target AP.
  • the AC can also determine whether the next hop address information corresponding to the target AP has changed, and then determine what needs to be modified in the second ARP request message according to the determination result.
  • the specific process is as follows:
  • Step 301 Obtain a first feature value corresponding to the target AP and a second feature value corresponding to a pre-stored second ARP request message.
  • the first feature value and the second feature value are generated according to the forwarding information corresponding to the target AP.
  • the AC determines the target virtual BSS interface and the target AP, it can obtain the first characteristic value corresponding to the target AP and the second characteristic value corresponding to the second ARP request message, and the second characteristic value corresponding to the second ARP request message.
  • the feature value is a feature value stored in a data block corresponding to the second ARP request message.
  • the number of second ARP request messages is multiple.
  • the implementation manners of obtaining the first feature value corresponding to the target AP may be various. The embodiments of this application provide several feasible ways, as follows:
  • Method one is to obtain the feature value corresponding to the target AP stored in the forwarding table.
  • the AC may directly query the feature value corresponding to the target AP in the forwarding table.
  • the step of obtaining the first characteristic value corresponding to the target AP may include: obtaining the IP address of the target AP corresponding to the forwarding table.
  • Obtaining a first feature value corresponding to the target AP for other second ARP request messages in the plurality of second ARP request messages includes: obtaining the feature value in the AP information of the target AP as the first feature value
  • the AC may obtain the index value and characteristic value corresponding to the target AP in the AP information table, and then transfer the The feature value corresponding to the target AP is queried during publishing (for convenience of distinction, it is called the third feature value). Then, the AC may determine whether the third feature value is the same as the feature value in the AP information of the target AP. If they are the same, it means that the next hop address information corresponding to the target AP in the forwarding table has not changed. The AC uses the characteristic value of the target AP in the AP information as the first characteristic value.
  • the AC can modify the characteristic value of the target AP in the AP information to a third characteristic value, and use the characteristic value of the target AP in the modified AP information as the first characteristic value. Subsequently, for other second ARP request messages in the multiple second ARP request messages, the AC can directly obtain the first characteristic value from the AP information of the target AP without querying the forwarding table. Due to the time required to query the forwarding table It is longer. Therefore, based on the above processing, query time can be effectively reduced, and AC processing efficiency is improved.
  • step 302 it is determined whether the first characteristic value is the same as the second characteristic value. If so, step 303 is performed; otherwise, step 304 is performed.
  • Step 303 Modify the pre-stored second ARP request message according to the first wireless payload of the first ARP request message and the radio frequency information of the target virtual BSS interface.
  • the first characteristic value is the same as the second characteristic value, it means that the destination MAC and VLAN in the Ethernet header in the second ARP request message need not be modified, and the AC only needs to perform
  • the first wireless payload and the radio frequency information of the target virtual BSS interface modify the second ARP request message.
  • the specific processing process includes the following steps:
  • Step 1 Modify the parameter value of the preset parameter in the second wireless payload of the second ARP request message to the parameter value of the preset parameter in the first wireless payload.
  • the preset parameter includes the sending end IP address, Sending MAC address and receiving IP address.
  • the AC may correspondingly modify the sender IP address, sender MAC address, and receiver IP address in the second wireless payload of the second ARP request message to the first carried in the first ARP request message.
  • the sending end IP address in the first wireless payload carried in the first ARP request message is 2.0.0.100
  • the sending end MAC address is 00: 00: 12: 12: 80: 15
  • the receiving end IP address is 2.0 .0.11
  • the AC can modify the sender's IP address in the second ARP request packet to 2.0.0.100
  • the sender's MAC address to 00: 00: 12: 12: 80: 15, and the receiver's IP address to 2.0 .0.11.
  • Step 2 Modify the radio frequency information in the CAPWAP header in the second ARP request message to the radio frequency information of the target virtual BSS interface.
  • the AC may correspondingly modify the radio frequency information in the CAPWAP header in the second ARP request message to the radio frequency information of the target virtual BSS interface. For example, if the radio frequency information of the target virtual BSS interface is 1, the AC may modify the radio frequency information in the CAPWAP header in the second ARP request packet to 1.
  • Step 3 Modify the ID field and the check field in the IP header of the second ARP request message according to the maximum transmission unit corresponding to the target AP.
  • the AC may modify the check field in the second ARP request message according to the maximum transmission unit corresponding to the target AP.
  • the AC can also determine whether the second ARP request message needs to be fragmented according to the maximum transmission unit. If so, the second ARP request message is fragmented and the encapsulation information is modified according to the maximum transmission unit. Fragment identification in the IP header in. The specific fragmentation process belongs to the prior art, which is not repeated in the embodiment of the present application.
  • Step 304 Modify the second ARP request message according to the first wireless payload of the first ARP request message, the next hop address information corresponding to the target AP, and the radio frequency information of the target virtual BSS interface.
  • the first characteristic value is different from the second characteristic value, it means that the destination MAC address and VLAN in the Ethernet header in the second ARP request packet need to be modified, and the AC needs to modify the The first wireless payload, the radio frequency information of the target virtual BSS interface, and the next hop address information corresponding to the target AP are used to modify the second ARP request message.
  • the specific processing process includes the following steps:
  • Step 1 Modify the parameter value of the preset parameter in the second wireless payload of the second ARP request message to the parameter value of the preset parameter in the first wireless payload.
  • the preset parameter includes the sending end IP address, Sending MAC address and receiving IP address.
  • step 1 in step 303 The specific processing procedure is similar to step 1 in step 303, and is not repeated here.
  • Step 2 Modify the radio frequency information in the CAPWAP header of the control and configuration protocol in the second ARP request message to the radio frequency information of the target virtual BSS interface.
  • step 303 The specific processing procedure is similar to step 2 in step 303, and details are not described herein again.
  • Step 3 Modify the ID field and the check field in the IP header of the second ARP request message according to the maximum transmission unit corresponding to the target AP.
  • step 3 The specific processing procedure is similar to step 3 in step 303, and details are not described herein again.
  • Step 4 Modify the destination MAC address and VLAN in the Ethernet header of the second ARP request message to the next hop MAC and next hop VLAN corresponding to the target AP.
  • the AC can obtain the next-hop VLAN and next-hop MAC address corresponding to the target AP from the AP information of the target AP, and then the destination MAC address and VLAN in the Ethernet header of the second ARP request packet can be obtained.
  • the next hop MAC address and next hop VLAN corresponding to the target AP correspond to the next hop MAC address and next hop VLAN corresponding to the target AP. For example, if the next-hop MAC address corresponding to the target AP is MAC1 and the next-hop VLAN is VLAN1, the AC changes the destination MAC address in the Ethernet header of the second ARP request packet to MAC1 and the VLAN to VLAN1.
  • the AC may also modify the characteristic value corresponding to the second ARP request message.
  • the specific process is as follows: If the first characteristic value is different from the second characteristic value, the second characteristic value corresponding to the second ARP request message is modified to the first characteristic value.
  • the AC modifies the Ethernet header in the second ARP request message according to the next-hop MAC and next-hop VLAN corresponding to the target AP.
  • the second characteristic value corresponding to the second ARP request packet may be modified to the first characteristic value. In this way, if the next-hop address information corresponding to the target AP does not change, there is no need to modify the Ethernet header in the second ARP request packet, thereby improving processing efficiency.
  • the AC may receive a first ARP request message to be broadcast, and the first ARP request message carries a first wireless payload.
  • the AC determines a target virtual BSS interface corresponding to the VLAN to which the first ARP request message belongs, and a target AP to which the target virtual BSS interface belongs, and then according to the first wireless payload and the pre-stored encapsulation information of the first ARP request message, Modify the pre-stored second ARP request message.
  • the encapsulation information includes the radio frequency information of the target virtual BSS interface and the next hop address information of the target AP, and send the modified second ARP request message to the target AP.
  • the AC only needs to modify the pre-stored second ARP request message according to the first wireless payload of the first ARP request message to be broadcast and the pre-stored encapsulation information, and does not need to duplicate the first ARP request message.
  • Improve AC processing efficiency
  • an embodiment of the present application further provides a device for transmitting a message.
  • the device is applied to an AC.
  • the device includes:
  • the receiving module 410 is configured to receive a first address resolution protocol ARP request message to be broadcast, where the first ARP request message carries a first wireless payload;
  • a determining module 420 configured to determine a target virtual BSS interface corresponding to a VLAN to which the first ARP request message belongs, and a target AP to which the target virtual BSS interface belongs;
  • the first modification module 430 is configured to modify the pre-stored second ARP request message according to the first wireless payload of the first ARP request message and the pre-stored encapsulation information, where the encapsulation information includes radio frequency information of the target virtual BSS interface and The next hop address information corresponding to the target AP;
  • the sending module 440 is configured to send a modified second ARP request message to the target AP.
  • the device further includes:
  • the obtaining module 450 is configured to obtain a first feature value corresponding to the target AP and a second feature value corresponding to a pre-stored second ARP request message, where the first feature value and the second feature value are corresponding to the target AP. Generated by forwarding information;
  • the first modification module 430 is specifically configured to:
  • the first characteristic value is the same as the second characteristic value, modifying the pre-stored second ARP request message according to the first wireless payload of the first ARP request message and the radio frequency information of the target virtual BSS interface;
  • the second ARP is modified according to the first wireless payload of the first ARP request message, the next hop address information corresponding to the target AP, and the radio frequency information of the target virtual BSS interface. Request message.
  • the first modification module 430 is specifically configured to:
  • the preset parameter includes the sending end IP address and the sending end MAC. Address and receiving end IP address;
  • next hop address information includes a next hop MAC address and a next hop VLAN
  • the first modification module 430 is specifically configured to:
  • the preset parameter includes the sending end IP address and the sending end MAC. Address and receiving end IP address;
  • the device further includes:
  • the second modification module 460 is configured to modify the second feature value corresponding to the second ARP request message to the first feature value if the first feature value is different from the second feature value.
  • the number of the second ARP request messages is multiple.
  • the obtaining module 450 is specifically configured to:
  • the third feature value is the same as the feature value in the AP information of the target AP stored in advance, using the feature value in the AP information as the first feature value;
  • the feature value in the AP information is modified to the third feature value, and the feature value in the modified AP information is used as the first Eigenvalues;
  • the obtaining module 450 is specifically configured to:
  • the AC may receive a first ARP request message to be broadcast, and the first ARP request message carries a first wireless payload.
  • the AC determines a target virtual BSS interface corresponding to the VLAN to which the first ARP request message belongs, and a target AP to which the target virtual BSS interface belongs, and then according to the first wireless payload and the pre-stored encapsulation information of the first ARP request message, Modify the pre-stored second ARP request message.
  • the encapsulation information includes the radio frequency information of the target virtual BSS interface and the next hop address information of the target AP, and send the modified second ARP request message to the target AP.
  • the AC only needs to modify the pre-stored second ARP request message according to the first wireless payload of the first ARP request message to be broadcast and the pre-stored encapsulation information, and does not need to duplicate the first ARP request message.
  • Improve AC processing efficiency
  • an embodiment of the present application further provides an AC.
  • the AC includes: a processor 701 and a machine-readable storage medium 702.
  • the machine-readable storage medium 702 stores Machine-executable instructions executed by the processor 701, the machine-executable instructions causing the processor 701 to:
  • machine-executable instructions further cause the processor 701 to:
  • the modifying the pre-stored second ARP request message according to the first wireless payload of the first ARP request message and the pre-stored encapsulation information includes:
  • first characteristic value is the same as the second characteristic value, modify the pre-stored second ARP according to the first wireless payload of the first ARP request message and the radio frequency information of the target virtual BSS interface. Request message
  • machine-executable instructions specifically cause the processor 701 to:
  • the next hop address information includes a next hop MAC address and a next hop VLAN
  • the machine-executable instructions specifically cause the processor 701 to:
  • machine-executable instructions further cause the processor 701 to:
  • the number of the second ARP request packets is multiple;
  • the machine-executable instructions specifically cause the processor 701 to:
  • the third feature value is the same as the feature value in the AP information of the target AP, using the feature value in the AP information as the first feature value;
  • the third feature value is different from the feature value in the AP information of the target AP, modify the feature value in the AP information to the third feature value, and modify the AP information after the modification The feature value in the first feature value;
  • the acquiring a first feature value corresponding to the target AP includes:
  • the network device may further include a communication bus 703.
  • the communication bus 703 may be a Peripheral Component Interconnect Standard (English: Peripheral Component Interconnect (PCI) for short) bus or an Extended Industry Standard Architecture (English: Extended Industry Standard Architecture (EISA) bus for short).
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • the communication bus 703 can be divided into an address bus, a data bus, a control bus, and the like.
  • the machine-readable storage medium 702 may include random access memory (English: Random Access Memory, referred to as RAM), and may also include non-volatile memory (English: Non-Volatile Memory, referred to as NVM), such as at least one disk memory. .
  • the machine-readable storage medium 702 may also be at least one storage device located remote from the foregoing processor 701.
  • the processor 701 may be a general-purpose processor 701, including a central processing unit 701 (English: Central Processing Unit, abbreviated as: CPU), a network processor 701 (English: Network Processor, abbreviated as: NP), etc .; it may also be a digital signal processor 701 (English: Digital Signal Processing, referred to as DSP), Application Specific Integrated Circuit (English: Application Specific Integrated Circuit, referred to as ASIC), Field Programmable Gate Array (English: Field-Programmable Gate Array, FPGA) or other Programming logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processing
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • a computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, any one of the foregoing message transmissions is implemented. Steps of the method.
  • a computer program product containing instructions is also provided, which when executed on a computer, causes the computer to execute the steps of the method for transmitting a message in any of the above embodiments.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, a computer, a server, or a data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that includes one or more available medium integration.
  • the available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (Solid State Disk (SSD)), and the like.
  • relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that between these entities or operations There is any such actual relationship or order.
  • the terms "including”, “comprising”, or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or device that includes a series of elements includes not only those elements but also those that are not explicitly listed Or other elements inherent to such a process, method, article, or device.
  • the elements defined by the sentence “including a " do not exclude the existence of other identical elements in the process, method, article, or equipment that includes the elements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé comprenant les étapes suivantes: réception par un AC d'un premier paquet de demande de protocole de résolution d'adresse (ARP) à diffuser, le premier paquet de demande d'ARP transportant une première charge utile sans fil; détermination d'une interface BSS virtuelle cible correspondant à un VLAN dont fait partie le premier paquet de demande d'ARP et un AP cible couvrant l'interface BSS virtuelle cible; modification d'un deuxième paquet de demande d'ARP pré-stocké selon la première charge utile sans fil du premier paquet de demande d'ARP et des informations d'encapsulation pré-stockées, les informations d'encapsulation comprenant des informations de radiofréquence de l'interface BSS virtuelle cible et des informations d'adresse du saut suivant correspondant à l'AP cible; et transmission du deuxième paquet de demande d'ARP modifié à l'AP cible. La présente invention peut améliorer l'efficacité de traitement d'un AC.
PCT/CN2019/095137 2018-07-09 2019-07-08 Transmission de paquets WO2020011135A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810744809.3A CN108989173B (zh) 2018-07-09 2018-07-09 一种报文传输的方法及装置
CN201810744809.3 2018-07-09

Publications (1)

Publication Number Publication Date
WO2020011135A1 true WO2020011135A1 (fr) 2020-01-16

Family

ID=64536477

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/095137 WO2020011135A1 (fr) 2018-07-09 2019-07-08 Transmission de paquets

Country Status (2)

Country Link
CN (1) CN108989173B (fr)
WO (1) WO2020011135A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108989173B (zh) * 2018-07-09 2020-04-28 新华三技术有限公司 一种报文传输的方法及装置
CN111385209B (zh) * 2018-12-28 2021-06-22 华为技术有限公司 一种报文处理方法、报文转发方法、装置及设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1972230A (zh) * 2006-11-09 2007-05-30 杭州华为三康技术有限公司 一种无线局域网地址解析协议广播方法及接入控制器
US20080002703A1 (en) * 2006-06-30 2008-01-03 Sun Microsystems, Inc. System and method for virtual network interface cards based on internet protocol addresses
CN103079229A (zh) * 2012-12-28 2013-05-01 上海寰创通信科技股份有限公司 接入控制器广播定向发送的方法
US20160080415A1 (en) * 2014-09-17 2016-03-17 Shadow Networks, Inc. Network intrusion diversion using a software defined network
US20170048154A1 (en) * 2015-08-11 2017-02-16 Luxar Tech, Inc. Redirection ip packet through switch fabric
CN108989173A (zh) * 2018-07-09 2018-12-11 新华三技术有限公司 一种报文传输的方法及装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201132055A (en) * 2010-03-04 2011-09-16 Gemtek Technology Co Ltd Routing device and related packet processing circuit
CN103166874B (zh) * 2013-03-25 2016-03-02 杭州华三通信技术有限公司 一种报文转发方法及设备
CN104079466B (zh) * 2014-07-03 2017-10-03 新华三技术有限公司 一种报文处理方法和设备
CN106376003B (zh) * 2015-07-23 2019-11-19 中移（杭州）信息技术有限公司 检测无线局域网连接及无线局域网数据发送方法及其装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080002703A1 (en) * 2006-06-30 2008-01-03 Sun Microsystems, Inc. System and method for virtual network interface cards based on internet protocol addresses
CN1972230A (zh) * 2006-11-09 2007-05-30 杭州华为三康技术有限公司 一种无线局域网地址解析协议广播方法及接入控制器
CN103079229A (zh) * 2012-12-28 2013-05-01 上海寰创通信科技股份有限公司 接入控制器广播定向发送的方法
US20160080415A1 (en) * 2014-09-17 2016-03-17 Shadow Networks, Inc. Network intrusion diversion using a software defined network
US20170048154A1 (en) * 2015-08-11 2017-02-16 Luxar Tech, Inc. Redirection ip packet through switch fabric
CN108989173A (zh) * 2018-07-09 2018-12-11 新华三技术有限公司 一种报文传输的方法及装置

Also Published As

Publication number Publication date
CN108989173B (zh) 2020-04-28
CN108989173A (zh) 2018-12-11

Similar Documents

Publication Publication Date Title
US9712559B2 (en) Identifying frames
US11606223B2 (en) Broadband remote access server (BRAS) system-based packet encapsulation
JP2017079488A (ja) ネットワークにアクセスするシステム及び方法
US20060280138A1 (en) Wireless access point repeater
US9756148B2 (en) Dynamic host configuration protocol release on behalf of a user
US20220060881A1 (en) Group management method, apparatus, and system
WO2021052399A1 (fr) Procédé, appareil et système d'extension d'interface
CN104468866A (zh) 一种无线局域网中多网关终端快速漫游方法
US10075410B2 (en) Apparatus and methods for assigning internetwork addresses
WO2016197689A1 (fr) Procédé, appareil et système pour traiter un paquet
EP2536099A2 (fr) Procédé permettant d'éviter les conflits d'adresse et noeud de réception associé
US9923814B2 (en) Media access control address resolution using internet protocol addresses
CN106507414B (zh) 报文转发方法及装置
WO2020011135A1 (fr) Transmission de paquets
US9450880B2 (en) Load condition based transfer of processing responsibility
WO2017041534A1 (fr) Procédé et dispositif de communication par courants porteurs en ligne, et support de stockage informatique
WO2021184862A1 (fr) Procédé d'envoi de message, premier dispositif de réseau et système de réseau
EP3706373B1 (fr) Établissement d'un vxlan entre un point d'accès sans fil et un noeud
CN110958124B (zh) 多播组管理方法、装置、可读存储介质、及计算机
US20170222970A1 (en) Ipv6 address assignment method and apparatus
WO2021134754A1 (fr) Procédé et appareil d'établissement de connexion de terminal
WO2015027474A1 (fr) Procédé d'encapsulation d'en-tête de paquet de données, procédé de désencapsulation d'en-tête de paquet de données, appareil, et dispositif
WO2023273957A1 (fr) Procédé et appareil de libération de puissance de calcul, et procédé et appareil de mise à jour de puissance de calcul
TWI291819B (en) Apparatus and method for establishing network
CN107689881B (zh) 报文处理方法以及装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19833062

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19833062

Country of ref document: EP

Kind code of ref document: A1