CN104202248B - The implementation method of forwarding is quickly concentrated in hotspot controller - Google Patents
The implementation method of forwarding is quickly concentrated in hotspot controller Download PDFInfo
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- CN104202248B CN104202248B CN201410347834.XA CN201410347834A CN104202248B CN 104202248 B CN104202248 B CN 104202248B CN 201410347834 A CN201410347834 A CN 201410347834A CN 104202248 B CN104202248 B CN 104202248B
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- 238000005538 encapsulation Methods 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 3
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Abstract
The present invention relates to the implementation methods that forwarding is quickly concentrated in a kind of hotspot controller, comprising the following steps: 1) CAPWAP tunnel decapsulates, which includes following sub-step: 11) establishing flow table；12) flow table forwards；2) CAPWAP tunnel encapsulates, which includes following sub-step: 21) establishing flow table；22) flow table forwards；Compared with prior art, the present invention has many advantages, such as to improve efficiency, saves the time, is applied widely.
Description
Technical field
The present invention relates to a kind of methods of hotspot controller message forwarding, control more particularly, to a kind of hotspot
The implementation method of forwarding is quickly concentrated in device.
Background technique
Wlan user data carries out concentration forwarding, convergent point of the hotspot controller as all data, to performance
It is required that very high, HardwareUpgring must bring cost increase.The method of this patent can be in the case where hardware condition be constant, greatly
The data forwarding performance of width promotion hotspot controller.
In message repeating process, user's message carries out concentration forwarding, to look into two-layer retransmitting table, routing table, ARP table, user
Multiple tables such as table could be completed once to forward.
User's message has CAPWAP tunnel when reaching hotspot controller, a message is needed by protocol stack twice
It could complete forwarding.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind to improve efficiency, saves
The implementation method that forwarding is quickly concentrated in time, hotspot controller applied widely, can be constant in hardware condition
In the case of, the data forwarding performance of hotspot controller is substantially improved.
The purpose of the present invention can be achieved through the following technical solutions:
The implementation method of forwarding is quickly concentrated in a kind of hotspot controller, which comprises the following steps:
1) CAPWAP tunnel decapsulates, which includes following sub-step:
11) flow table is established, which includes:
111) it establishes imperfect flow entry: establishing FLOW after the message that physical drives receive CAPWAP encapsulation, and record
The physical port of message, source and destination MAC Address and source and destination IP address are received, imperfect flow entry is established；
112) AP FLOW is set: during CAPWAP is sent to CAPWAP driving, being looked into according to source and destination IP address
Imperfect flow entry is looked for, setting type is AP FLOW, and records CAPWAP information；
113) imperfect list item is marked: if the message received is IPv4 message, according to CAPWAP tunnel internal layer message
FLOW is established in source, purpose IP address, and is labeled as imperfect list item；
114) USER FLOW is set: according to source and destination IP address, searching imperfect list item, source when record is sent and
Target MAC (Media Access Control) address, the physical port of transmission, and it is labeled as complete list item, type is set as USERFLOW；
12) flow table forwards, which includes:
121) solution CAPWAP encapsulation: physical drives receive the message of CAPWAP encapsulation, search and are labeled as complete flow table, and
For AP FLOW type, directly solution CAPWAP encapsulation；
122) send message: the message after decapsulating uses the source of internal layer, purpose IP address to search complete flow table again, such as
Fruit is found, and be USER FLOW type, then according to recorded in flow table MAC Address modification message in source, target MAC (Media Access Control) address,
And it is sent from the physics exit port of record；
2) CAPWAP tunnel encapsulates, which includes following sub-step:
21) flow table is established, which includes:
211) it establishes imperfect flow entry: during physical drives send message to Ethernet, establishing FLOW, and remember
Record receives the physical port of message, source, target MAC (Media Access Control) address, source, purpose IP address, and is labeled as imperfect flow entry；
212) type USER FLOW is set: according to source, purpose IP address, searching imperfect flow entry, record CAPWAP letter
Breath, type is set as USER FLOW, and the message is marked to need to carry out CAPWAP encapsulation；
213) it marks complete list item: according to the source of message, purpose IP address, searching imperfect flow entry, as needed
The tunnel outer layer source that obtains in CAPWAP module, purpose IP address search complete list item, if finding list item and being AP FLOW
Type is then associated internal layer USER FLOW list item and outer layer AP FLOW list item, and records CAPWAP packaging information, completes
List item is labeled as complete list item afterwards；
22) flow table forwards, which includes:
221) CAPWAP Information encapsulation: driving receives IPv4 message, first searches and is labeled as complete flow table, if found,
It and is USER FLOW type, and labeled as needing CAPWAP to encapsulate, then sealed according to the CAPWAP information recorded in USERFLOW
Fill CAPWAP tunnel head；
222) send message: associated AP FLOW is found by USER FLOW, according to the IP recorded in AP FLOW,
MAC, port information, UDP, IP, the MAC header of encapsulation tunnel outer layer, and message is sent from the inbound port of APFLOW.
This method is suitable to be also used for IPv6 network or IPv6 and IPv4 hybrid network.
Compared with prior art, the present invention has the following advantages:
1, fast process has got around the complex process of existing protocol stack, simplifies message forwarding process, and collection greatly improved
Middle forwarding performance；
2, multiple list items such as two-layer retransmitting table, routing table, ARP table, NAT table are cached in flow table, only need to be once tabled look-up
It can complete forwarding；
3, different list items can be established using different keywords according to different configurations.
Detailed description of the invention
Fig. 1 is flow chart of the method for the present invention；
Fig. 2 is that CAPWAP tunnel of the present invention decapsulates schematic diagram；
Fig. 3 is CAPWAP tunnel encapsulation schematic diagram of the present invention.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to
Following embodiments.
Embodiment:
As shown in Figure 1, quickly concentrating the implementation method of forwarding in a kind of hotspot controller, comprising the following steps:
1) CAPWAP tunnel decapsulates, which includes following sub-step:
11) flow table is established, which includes:
111) it establishes imperfect flow entry: after the message that physical drives receive CAPWAP encapsulation, 1 is indicated in Fig. 2
FLOW is established in position, and records the physical port for receiving message, source and destination MAC Address and source and destination IP address, establishes
Imperfect flow entry；
112) AP FLOW is set: (indicating 4 position in Fig. 2) during CAPWAP is sent to CAPWAP driving,
Imperfect flow entry is searched according to source and destination IP address, setting type is AP FLOW, and records CAPWAP information；
113) it marks imperfect list item: indicating 5 position in Fig. 2, if the message received is IPv4 message, basis
FLOW is established in the source of CAPWAP tunnel internal layer message, purpose IP address, and is labeled as imperfect list item；
114) USER FLOW is set: indicating 8 position in Fig. 2, according to source and destination IP address, searches imperfect table
, source and destination MAC Address when record is sent, the physical port of transmission, and it is labeled as complete list item, type is set as USER
FLOW；
12) flow table forwards, which includes:
121) solution CAPWAP encapsulation: physical drives receive the message of CAPWAP encapsulation, search and are labeled as complete flow table, and
For AP FLOW type, directly solution CAPWAP encapsulation；
122) send message: the message after decapsulating uses the source of internal layer, purpose IP address to search complete flow table again, such as
Fruit is found, and be USER FLOW type, then according to recorded in flow table MAC Address modification message in source, target MAC (Media Access Control) address,
And it is sent from the physics exit port of record；
2) CAPWAP tunnel encapsulates, which includes following sub-step:
21) flow table is established, which includes:
211) it establishes imperfect flow entry: (indicating a1 in Fig. 3 during physical drives send message to Ethernet
Position), establish FLOW, and record the physical port for receiving message, source, target MAC (Media Access Control) address, source, purpose IP address, and mark
For imperfect flow entry；
212) type USER FLOW is set: indicating the position of a4 in Fig. 3, according to source, purpose IP address, is searched endless
List item is rectified, records CAPWAP information, type is set as USER FLOW, and the message is marked to need to carry out CAPWAP encapsulation；
213) it marks complete list item: indicating the position of a5 in Fig. 3, according to the source of message, purpose IP address, search endless
List item is rectified, the tunnel outer layer source obtained in CAPWAP module as needed, purpose IP address search complete list item, if found
List item and be AP FLOW type, then be associated internal layer USER FLOW list item and outer layer AP FLOW list item, and record
List item is labeled as complete list item after the completion by CAPWAP packaging information；
22) flow table forwards, which includes:
221) CAPWAP Information encapsulation: driving receives IPv4 message, first searches and is labeled as complete flow table, if found,
It and is USER FLOW type, and labeled as needing CAPWAP to encapsulate, then sealed according to the CAPWAP information recorded in USERFLOW
Fill CAPWAP tunnel head；
222) send message: associated AP FLOW is found by USER FLOW, according to the IP recorded in AP FLOW,
MAC, port information, UDP, IP, the MAC header of encapsulation tunnel outer layer, and message is sent from the inbound port of AP FLOW.
The method of the present invention is suitable for being also used for IPv6 network or IPv6 and IPv4 hybrid network, it may be assumed that
1) in IPv6 network, same method can be used to carry out fast-forwarding；
2) it is IPv4, user IPv6 between AP and AC, v6 user can be used to flow association v4AP stream and carry out fast-forwarding；
3) it is IPv6, user IPv4 between AP and AC, v4 user can be used to flow association v6AP stream and carry out fast-forwarding.
Claims (2)
1. quickly concentrating the implementation method of forwarding in a kind of hotspot controller, which comprises the following steps:
1) CAPWAP tunnel decapsulates, which includes following sub-step:
11) flow table is established, which includes:
111) it establishes imperfect flow entry: establishing FLOW after the message that physical drives receive CAPWAP encapsulation, and record and receive
The physical port of message, source and destination MAC Address and source and destination IP address, establish imperfect flow entry；
112) AP FLOW is set: during CAPWAP is sent to CAPWAP driving, being searched not according to source and destination IP address
Complete flow entry, setting type is AP FLOW, and records CAPWAP information；
113) imperfect list item is marked: if the message received is IPv4 message, according to the source of CAPWAP tunnel internal layer message, mesh
IP address establish FLOW, and be labeled as imperfect list item；
114) USER FLOW is set: according to source and destination IP address, searching imperfect list item, source and destination when record is sent
MAC Address, the physical port of transmission, and it is labeled as complete list item, type is set as USER FLOW；
12) flow table forwards, which includes:
121) solution CAPWAP encapsulation: physical drives receive the message of CAPWAP encapsulation, search and are labeled as complete flow table, and are AP
FLOW type, directly solution CAPWAP encapsulation；
122) send message: the message after decapsulating uses the source of internal layer, purpose IP address to search complete flow table again, if looked into
It arrives, and is USER FLOW type, then according to the source in the MAC Address modification message recorded in flow table, target MAC (Media Access Control) address, and from
The physics exit port of record is sent；
2) CAPWAP tunnel encapsulates, which includes following sub-step:
21) flow table is established, which includes:
211) it establishes imperfect flow entry: during physical drives send message to Ethernet, establishing FLOW, and record receipts
To the physical port of message, source, target MAC (Media Access Control) address, source, purpose IP address, and it is labeled as imperfect flow entry；
212) type USER FLOW is set: according to source, purpose IP address, searching imperfect flow entry, records CAPWAP information,
Type is set as USER FLOW, and the message is marked to need to carry out CAPWAP encapsulation；
213) it marks complete list item: according to the source of message, purpose IP address, searching imperfect flow entry, CAPWAP as needed
The tunnel outer layer source of module acquisition, purpose IP address search complete list item, if finding list item and being AP FLOW type,
Internal layer USER FLOW list item and outer layer AP FLOW list item are associated, and record CAPWAP packaging information, after the completion table
Item is labeled as complete list item；
22) flow table forwards, which includes:
221) CAPWAP Information encapsulation: driving receives IPv4 message, first searches and is labeled as complete flow table, if found, and is
USER FLOW type, and labeled as needing CAPWAP to encapsulate, then according to the CAPWAP Information encapsulation recorded in USER FLOW
CAPWAP tunnel head；
222) send message: associated AP FLOW is found by USER FLOW, according to the IP, MAC recorded in AP FLOW,
Port information, UDP, IP, the MAC header of encapsulation tunnel outer layer, and message is sent from the inbound port of AP FLOW.
2. quickly concentrating the implementation method of forwarding in a kind of hotspot controller according to claim 1, feature exists
In this method is also applied for IPv6 network or IPv6 and IPv4 hybrid network.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103428697A (en) * | 2012-05-22 | 2013-12-04 | 华为技术有限公司 | Network access method, device and system based on CAPWAP protocol |
| EP2672669A1 (en) * | 2012-06-07 | 2013-12-11 | Broadcom Corporation | Tunnel acceleration for wireless access points |
| CN103532878A (en) * | 2013-09-26 | 2014-01-22 | 华为技术有限公司 | Data packet processing method, and method, device and system for managing network flow |
| CN103826217A (en) * | 2012-11-16 | 2014-05-28 | 中国移动通信集团公司 | WLAN user service access method and device |
| CN103916302A (en) * | 2013-01-04 | 2014-07-09 | 上海贝尔股份有限公司 | Method and device for providing SDN stream route for virtual WLAN |
-
2014
- 2014-07-21 CN CN201410347834.XA patent/CN104202248B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103428697A (en) * | 2012-05-22 | 2013-12-04 | 华为技术有限公司 | Network access method, device and system based on CAPWAP protocol |
| EP2672669A1 (en) * | 2012-06-07 | 2013-12-11 | Broadcom Corporation | Tunnel acceleration for wireless access points |
| CN103826217A (en) * | 2012-11-16 | 2014-05-28 | 中国移动通信集团公司 | WLAN user service access method and device |
| CN103916302A (en) * | 2013-01-04 | 2014-07-09 | 上海贝尔股份有限公司 | Method and device for providing SDN stream route for virtual WLAN |
| CN103532878A (en) * | 2013-09-26 | 2014-01-22 | 华为技术有限公司 | Data packet processing method, and method, device and system for managing network flow |
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Effective date of registration: 20210524 Address after: 314000 North District, 3rd Floor, Building 12, Phase III, 906 Asia-Pacific Road, Nanhu District, Jiaxing City, Zhejiang Province Patentee after: Zhejiang new home network technology Co.,Ltd. Address before: 200241 block 02B, 6 / F, jilou, 555 Dongchuan Road, Minhang District, Shanghai Patentee before: SHANGHAI GBCOM COMMUNICATION TECHNOLOGY Co.,Ltd. |
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Denomination of invention: Implementation of fast centralized forwarding in wireless hotspot controller Effective date of registration: 20220616 Granted publication date: 20190705 Pledgee: Agricultural Bank of China Limited by Share Ltd. South Lake branch Pledgor: Zhejiang new home network technology Co.,Ltd. Registration number: Y2022330000994 |
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