CN107566267A - A kind of message forwarding method and device based on aggregated links - Google Patents
A kind of message forwarding method and device based on aggregated links Download PDFInfo
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Abstract
The invention provides a kind of message forwarding method and device applied to link aggregation field, wherein, this method includes：Message is received, wherein, the message carries the characteristic information of message；In the case where the message also carries and forwards port information corresponding to characteristic information, port is forwarded to forward the message according to corresponding to this feature information；Or do not carried in the case that this feature information correspondingly forwards port information in the message, inquire about corresponding with this feature information forwarding port information from the rule list pre-set；When inquiring forwarding port information corresponding to this feature information, the message is forwarded according to port corresponding to this feature information.The present invention solves the problems, such as to E-Packet by way of load balancing in correlation technique and causes important message dropping, realize and allow specific message to be forwarded by the particular port of aggregated links, other messages are forwarded still according to normal load balancing mode, so as to ensure that important message is reliably and effectively forwarded well.
Description
Technical Field
The present disclosure relates to, but not limited to, the field of communications, and in particular, to a method and an apparatus for forwarding a packet based on an aggregated link.
Background
Link aggregation (link aggregation) follows the IEEE 802.3AD link aggregation protocol. Fig. 1 is a schematic diagram of an aggregated link according to the related art, and as shown in fig. 1, several ports may be bound together by a link aggregation mechanism to form a logical port, so as to achieve the purpose of increasing bandwidth and achieve load sharing of traffic.
In the prior art, a hash algorithm is mainly used for determining a packet forwarding port so as to realize load sharing of traffic. Some patents set a weighted value for the message forwarding information according to the statistical information of data stream forwarding on this basis to determine the forwarding port of each message, thereby realizing more accurate load sharing.
However, in the following scenario, for example, there are two types of messages in the device 1, i.e., a type message and a type B message, where the traffic of the type a message is large and the priority of the message is high, but it is not very important for the system to allow partial packet loss, and the type B message is not high but important for the system to not allow packet loss. In this case, if the a-type packet and the B-type packet enter the device 2 through the aggregation port of the device 1 at the same time, because the processing capability of the device 2 is limited, all the a-type packet and all the B-type packet cannot be processed at the same time, the a-type packet and the B-type packet will be lost without distinction, thereby causing a series of other problems.
Aiming at the problem that important messages are lost due to the fact that the messages are forwarded in a load sharing mode in the related art, no solution is provided in the prior art.
Disclosure of Invention
The invention provides a message forwarding method and device based on an aggregation link, which solve the problem that important messages are lost due to the fact that messages are forwarded in a load sharing mode in the related technology.
The invention adopts the following technical scheme to realize the purpose:
a message forwarding method applied to the link aggregation field comprises the following processing steps:
receiving a message, wherein the message carries characteristic information of the message;
under the condition that the message also carries forwarding port information corresponding to the characteristic information, forwarding the message according to the forwarding port corresponding to the characteristic information; or,
under the condition that the message does not carry forwarding port information corresponding to the characteristic information, inquiring the forwarding port information corresponding to the characteristic information from a preset rule table; and when the forwarding port information corresponding to the characteristic information is inquired, forwarding the message according to the forwarding port corresponding to the characteristic information.
Further, under the condition that the message also carries forwarding port information corresponding to the characteristic information, the message forwarding method further includes forwarding the message according to the forwarding port corresponding to the characteristic information when the forwarding port is unique; and when the forwarding ports are not unique, selecting one forwarding port from the forwarding ports to forward the message according to a Hash algorithm.
Preferably, the message forwarding method further includes recording the feature information and forwarding port information corresponding to the feature information in the rule table under the condition that the message also carries the forwarding port information corresponding to the feature information.
Further, the message forwarding method further includes forwarding the message according to a hash algorithm under the condition that the forwarding port information corresponding to the feature information is not queried.
Preferably, the message forwarding method further includes forwarding the message at the forwarding speed according to the forwarding port corresponding to the characteristic information under the condition that the rule table carries the forwarding speed information of the forwarding port.
Further, the characteristic information in the message forwarding method is a source Mac address, a destination Mac address, a virtual local area network VLAN id, and quality of service QoS information of the message.
The invention also discloses a message forwarding device applied to the link aggregation field, which comprises:
the receiving module is used for receiving a message, and the message carries characteristic information of the message;
the query module is used for querying forwarding port information corresponding to the characteristic information from a preset rule table under the condition that the message does not carry the forwarding port information corresponding to the characteristic information;
a first forwarding module, configured to forward the packet according to a forwarding port corresponding to the feature information when the packet also carries forwarding port information corresponding to the feature information; or, in the case that the packet does not carry forwarding port information corresponding to the feature information, forwarding the packet according to a forwarding port corresponding to the feature information obtained by querying from the preset rule table.
Further, the first forwarding module is further configured to forward the packet according to the forwarding port corresponding to the feature information when the forwarding port corresponding to the feature information is unique; and when the forwarding ports corresponding to the characteristic information are not unique, selecting one forwarding port from the forwarding ports to forward the message according to a Hash algorithm.
Preferably, the first forwarding module is further configured to forward the packet at the forwarding speed of the forwarding port according to the forwarding port corresponding to the characteristic information under the condition that the rule table carries the forwarding speed information of the forwarding port.
Further, the message forwarding apparatus further includes a maintenance module, configured to record the characteristic information and forwarding port information corresponding to the characteristic information in the rule table under the condition that the message also carries the forwarding port information corresponding to the characteristic information.
Further, the packet forwarding apparatus further includes a second forwarding module, configured to forward the packet according to a hash algorithm when forwarding port information corresponding to the feature information is not queried.
The embodiment of the invention extracts the characteristic information of the message and designates the special message to go through the special port, solves the problem that the important message is lost when the message is forwarded in a load sharing mode in the related technology, realizes that the specific message is forwarded through the special port of the aggregation link, and other messages are still forwarded according to normal load sharing, thereby well ensuring that the important message is reliably and efficiently forwarded.
Drawings
Fig. 1 is a schematic diagram of an aggregated link according to the related art;
fig. 2 is a flow chart of packet forwarding for an aggregation link according to an embodiment of the present invention;
fig. 3 is a first block diagram of a packet forwarding apparatus for an aggregated link according to an embodiment of the present invention;
fig. 4 is a block diagram of a packet forwarding apparatus of an aggregated link according to an embodiment of the present invention;
fig. 5 is a block diagram of a packet forwarding apparatus for an aggregated link according to an embodiment of the present invention;
fig. 6 is a flowchart of a method for specifying a message forwarding port in a link aggregation port according to an embodiment of the present invention;
fig. 7 is a first block diagram of an apparatus for specifying a packet forwarding port in a link aggregation port according to an embodiment of the present invention;
fig. 8 is a block diagram of a second apparatus for specifying a packet forwarding port in a link aggregation port according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
The embodiment of the invention provides a message forwarding method applied to the field of link aggregation, which can forward a specific message from a specific port in an aggregated link, and forward other messages according to a hash algorithm default by equipment. Fig. 2 is a flow chart of message forwarding of an aggregated link according to an embodiment of the present invention, and as shown in fig. 2, the message forwarding method includes the following processing steps:
step S202, receiving a message, wherein the message carries characteristic information of the message;
step S204, under the condition that the message also carries the forwarding port information corresponding to the characteristic information, forwarding the message according to the forwarding port corresponding to the characteristic information; or,
step S206, under the condition that the message does not carry the forwarding port information corresponding to the characteristic information, inquiring the forwarding port information corresponding to the characteristic information from a preset rule table; and when the forwarding port information corresponding to the characteristic information is inquired, forwarding the message according to the port corresponding to the characteristic information.
Preferably, the message forwarding method further includes recording the characteristic information and forwarding port information corresponding to the characteristic information in a rule table under the condition that the message also carries the forwarding port information corresponding to the characteristic information.
According to the characteristic information of the message and the forwarding port corresponding to the characteristic information, the equipment maintains a rule table, and the rule table describes the characteristic information of the message to be matched and the corresponding forwarding port relation; there are two points to be explained here: firstly, the system can judge the legality of an instruction issued by a user, such as whether a field is legal or not, whether a port belongs to an aggregation port or not, and the like, and if the field is illegal, the system can remind the user of illegal input; second, the message field includes but is not limited to information such as a source mac address (smac), a destination mac address (dmac), a vlan id, and the like.
In a preferred embodiment, when the packet further carries forwarding port information corresponding to the feature information, the packet is forwarded according to the forwarding port corresponding to the feature information when the forwarding port is unique; and when the forwarding ports are not unique, selecting one forwarding port from the forwarding ports to forward the message according to a Hash algorithm.
Further, the message forwarding method further includes forwarding the message according to a hash algorithm under the condition that the forwarding port information corresponding to the feature information is not queried.
If the user does not input any instruction, the rule table is an empty table by default, and the message is directly forwarded by using a default load sharing mode of the system when the message is forwarded through the aggregation port.
When the message is forwarded through the aggregation port, the device extracts the required message fields, and then searches whether the fields are matched in the rule table or not according to the fields. If the port is found, the port is forwarded out from the corresponding port, otherwise, the load sharing is carried out according to the result of the Hash algorithm. It should be noted that the network communication device has multiple load sharing modes, and each load sharing mode has a corresponding hash algorithm.
Preferably, when the rule table carries the forwarding speed information of the forwarding port, the forwarding port corresponding to the characteristic information forwards the packet at the forwarding speed of the forwarding port, so that the important packet can be forwarded at a faster speed.
The present invention also provides a message forwarding apparatus applied in the field of link aggregation, and fig. 3 is a first block diagram of a message forwarding apparatus for aggregating links according to an embodiment of the present invention, as shown in fig. 3, including:
a receiving module 32, configured to receive a packet, where the packet carries characteristic information of the packet;
the query module 34 is configured to query forwarding port information corresponding to the feature information from a preset rule table when the packet does not carry the forwarding port information corresponding to the feature information;
a first forwarding module 36, configured to forward the packet according to the forwarding port corresponding to the feature information when the packet also carries forwarding port information corresponding to the feature information; or, under the condition that the packet does not carry the forwarding port information corresponding to the feature information, forwarding the packet according to the forwarding port corresponding to the feature information obtained by querying from the preset rule table.
Further, the first forwarding module 36 is further configured to forward the packet according to the forwarding port corresponding to the feature information when the forwarding port is unique; and when the forwarding ports are not unique, selecting one forwarding port from the forwarding ports to forward the message according to a Hash algorithm.
Preferably, the first forwarding module 36 is further configured to, when the rule table carries forwarding speed information of a forwarding port, forward the packet at the forwarding speed of the forwarding port according to the forwarding port corresponding to the characteristic information.
Fig. 4 is a block diagram of a second packet forwarding apparatus for an aggregated link according to a preferred embodiment of the present invention, and as shown in fig. 4, the packet forwarding apparatus further includes a maintenance module 42, configured to record, in a rule table, the characteristic information and forwarding port information corresponding to the characteristic information when a packet also carries the forwarding port information corresponding to the characteristic information.
Fig. 5 is a block diagram of a third message forwarding apparatus for an aggregated link according to a preferred embodiment of the present invention, and as shown in fig. 5, the message forwarding apparatus further includes a second forwarding module 52, configured to forward the message according to a hash algorithm when forwarding port information corresponding to the feature information is not queried.
Compared with the prior art, the invention can ensure that the specific message is forwarded through the specific port of the aggregation link, and other messages are still forwarded according to normal load sharing, thereby ensuring that the important message can be reliably and efficiently forwarded.
Example one
Fig. 6 is a flowchart of a method for specifying a packet forwarding port in a link aggregation port according to an embodiment of the present invention, as shown in fig. 6, the method includes:
step S602, acquiring a user configuration instruction, for example, a user inputs the following configuration instructions:
link-aggregation smac＝00:12:34:56:11:22vlanid＝3port＝2；
link-aggregation dmac＝00:34:33:44:55:66vlanid＝2port＝3；
link-aggregation vlanid＝10port＝1，2；
the meaning of the above three commands is explained as follows:
the first command is that when the source smac of the message passing through the aggregation port is 00:12:34:56:11:22 and the vlan id is equal to 3, the message is forwarded from the port number 2;
the second command is to forward a message passing through the aggregation port from port number 3 when its destination dmac is 00:34:33:44:55:66 and vlan id is equal to 2;
the third command is that when the vlan id of the packet passing through the aggregation port is 10, the packet may select one port from the 1-port and the 2-port to forward.
Step S604, when the device acquires the instruction, it determines that the instruction is legal, and then writes the feature information of the three instructions and the forwarding port information corresponding to the feature information into a rule table, as shown in table one.
Table one rule table:
step S606, when the message in the system passes through the aggregation port, the items in the lookup rule table are polled in sequence, and when a certain item is matched, the message is forwarded according to the port corresponding to the item; if no item is matched, load sharing is carried out according to a hash algorithm.
For example, if the dmac of a packet is 00:34:33:44:55:66, the vlan id is 2, the packet instruction carries the feature information of the packet but does not carry the forwarding port corresponding to the feature information, and then the information recorded in the rule table is searched, and the forwarding port corresponding to the packet feature is found to be port 3, so that the packet is forwarded according to the information recorded in the rule table;
if the vlan of a message is 10, the instruction carries the feature information of the message but does not carry the forwarding port corresponding to the feature information, and at this time, the information recorded in the rule table is searched, and two forwarding ports matched with the feature of the message are found, so that the final forwarding port of the message is further determined according to a hash algorithm, and the message is forwarded;
under other conditions, if one message does not have a forwarding port carrying message characteristic information and a rule table does not have a matched forwarding port, the message is forwarded according to a Hash algorithm.
Example two
Fig. 7 is a first block diagram of an apparatus for specifying a packet forwarding port in a link aggregation port according to an embodiment of the present invention, including:
the obtaining module 72 is configured to obtain the user configuration instruction, determine the validity of the instruction issued by the user, and remind the user to re-input if the user is not legal.
A maintenance module 74 configured to maintain and update the rule table according to the instructions entered by the user.
Fig. 8 is a block diagram of a second apparatus for specifying a packet forwarding port in a link aggregation port according to an embodiment of the present invention, where the processing module 76 is configured to forward a packet passing through the aggregation port, and the processing module 76 includes the following sub-modules:
and the analysis submodule 82 is set to analyze the message and extracts required fields from the message.
The query submodule 84 is configured to query the rule table according to the field parsed by the parsing submodule 82.
The first forwarding sub-module 86 is configured to forward the message according to the corresponding port in the rule table when the query sub-module 84 matches the entry corresponding to the message from the rule table.
A second forwarding sub-module 88 arranged to forward the message according to a hash algorithm if the querying sub-module 84 does not match any entry from the rule table that matches the message.
Wherein the functionality of the obtaining module 72 corresponds to the functionality of the receiving module 32, the functionality of the maintaining module 74 corresponds to the functionality of the maintaining module 42, and the functionality of the processing module 76 corresponds to the functionality of the querying module 34, the first forwarding module 36, and the second forwarding module 52.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (11)
1. A message forwarding method is applied to the field of link aggregation and is characterized by comprising the following steps:
receiving a message, wherein the message carries characteristic information of the message;
under the condition that the message also carries forwarding port information corresponding to the characteristic information, forwarding the message according to the forwarding port corresponding to the characteristic information; or,
under the condition that the message does not carry forwarding port information corresponding to the characteristic information, inquiring the forwarding port information corresponding to the characteristic information from a preset rule table; and when the forwarding port information corresponding to the characteristic information is inquired, forwarding the message according to the forwarding port corresponding to the characteristic information.
2. The packet forwarding method according to claim 1, wherein when the packet further carries forwarding port information corresponding to the feature information, the method further comprises:
when the forwarding port corresponding to the characteristic information is unique, forwarding the message according to the forwarding port corresponding to the characteristic information; and when the forwarding ports corresponding to the characteristic information are not unique, selecting one forwarding port from the forwarding ports to forward the message according to a Hash algorithm.
3. The packet forwarding method according to claim 1 or 2, wherein when the packet further carries forwarding port information corresponding to the feature information, the method further comprises:
and recording the characteristic information and forwarding port information corresponding to the characteristic information into the rule table.
4. The message forwarding method of claim 1, wherein the method further comprises:
and under the condition that the forwarding port information corresponding to the characteristic information is not inquired, forwarding the message according to a Hash algorithm.
5. The packet forwarding method according to claim 3, wherein forwarding the packet according to the forwarding port corresponding to the feature information when the rule table carries the forwarding speed information of the forwarding port comprises:
and forwarding the message at the forwarding speed according to the forwarding port corresponding to the characteristic information.
6. The message forwarding method according to claim 4 or 5, wherein the characteristic information is a source Mac address, a destination Mac address, a virtual local area network VLAN id, and QoS information of the message.
7. A message forwarding device is applied to the field of link aggregation, and is characterized by comprising:
the receiving module is used for receiving a message, and the message carries characteristic information of the message;
the query module is used for querying forwarding port information corresponding to the characteristic information from a preset rule table under the condition that the message does not carry the forwarding port information corresponding to the characteristic information;
a first forwarding module, configured to forward the packet according to a forwarding port corresponding to the feature information when the packet also carries forwarding port information corresponding to the feature information; or, in the case that the packet does not carry forwarding port information corresponding to the feature information, forwarding the packet according to a forwarding port corresponding to the feature information obtained by querying from the preset rule table.
8. The message forwarding device according to claim 7, wherein the first forwarding module is further configured to forward the message according to the forwarding port corresponding to the feature information when the forwarding port corresponding to the feature information is unique;
and when the forwarding ports corresponding to the characteristic information are not unique, selecting one forwarding port from the forwarding ports to forward the message according to a Hash algorithm.
9. The message forwarding device according to claim 7 or 8, wherein the device further comprises:
and the maintenance module is used for recording the characteristic information and the forwarding port information corresponding to the characteristic information into the rule table under the condition that the message also carries the forwarding port information corresponding to the characteristic information.
10. The message forwarding device of claim 7, wherein the device further comprises:
and the second forwarding module is used for forwarding the message according to a hash algorithm under the condition that the forwarding port information corresponding to the characteristic information is not inquired.
11. The message forwarding apparatus according to claim 9, wherein the first forwarding module is further configured to forward the message at the forwarding speed according to the forwarding port corresponding to the characteristic information under the condition that the rule table carries the forwarding speed information of the forwarding port.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610514884.1A CN107566267A (en) | 2016-06-30 | 2016-06-30 | A kind of message forwarding method and device based on aggregated links |
| PCT/CN2017/086192 WO2018001020A1 (en) | 2016-06-30 | 2017-05-26 | Aggregated link based message forwarding method and device |
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| CN201610514884.1A CN107566267A (en) | 2016-06-30 | 2016-06-30 | A kind of message forwarding method and device based on aggregated links |
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| CN114006866B (en) * | 2021-10-09 | 2023-08-18 | 苏州浪潮智能科技有限公司 | Message forwarding method, system, equipment and medium |
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| WO2018001020A1 (en) | 2018-01-04 |
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