CN106130922B - Message scheduling method and network device - Google Patents

Message scheduling method and network device Download PDF

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CN106130922B
CN106130922B CN201610616641.9A CN201610616641A CN106130922B CN 106130922 B CN106130922 B CN 106130922B CN 201610616641 A CN201610616641 A CN 201610616641A CN 106130922 B CN106130922 B CN 106130922B
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voice
priority
address
data message
voice data
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CN106130922A (en
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闫丰
肖冰
史峰诚
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Hangzhou H3C Technologies Co Ltd
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Hangzhou H3C Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
    • H04L47/2466—Traffic characterised by specific attributes, e.g. priority or QoS using signalling traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
    • H04L47/2425—Traffic characterised by specific attributes, e.g. priority or QoS for supporting services specification, e.g. SLA
    • H04L47/2433—Allocation of priorities to traffic types
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
    • H04L47/2458—Modification of priorities while in transit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The embodiment of the invention discloses a message scheduling method and network equipment, wherein the method comprises the following steps: after receiving the voice data message; searching the non-OUI voice address of the voice data message to be matched with a voice address table item with a grade identification; searching the matched priority list item in the voice priority control list according to the grade identification of the matched voice address list item; modifying the priority information of the voice data message according to the matched priority table item; and scheduling the voice data message according to the modified priority information of the voice data message. So as to modify the priority of the voice data message of the non-OUI voice address and further realize the comprehensive scheduling of the voice data message with very high real-time performance.

Description

Message scheduling method and network device
Technical Field
The present invention relates to the field of voice communication technologies, and in particular, to a packet scheduling method and a network device.
Background
A Voice VLAN (Virtual Local Area Network) is a VLAN that is divided for a user's Voice data stream, wherein the Voice data stream includes Voice data. The user can make the Voice data centralized in the Voice VLAN for transmission by creating the Voice VLAN and adding the port connected with the Voice equipment into the Voice VLAN by the switch, thereby facilitating the targeted QoS (Quality of Service) configuration of the Voice data stream, improving the transmission priority of the Voice data stream and ensuring the conversation Quality.
Specifically, the switch supporting Voice VLAN may determine whether a data packet is a Voice data packet according to a source MAC address carried by the data packet entering a port of the switch, where the source MAC address conforms to a data packet of an OUI (organization uniform Identifier) address of a Voice device set by a system and is regarded as the Voice data packet, and the OUI address may be set by a user in advance, or may use a default OUI address as a determination standard; or, the switch automatically discovers the voice device through an LLDP (Link Layer Discovery Protocol), that is, the switch performs information interaction with the opposite terminal device through the LLDP Protocol, and further determines whether the opposite terminal device is the voice device through the information interaction process, where a message sent by the voice device is a voice data message.
In the prior art, in order to improve the processing efficiency of a Voice data message, when a source MAC address carried in a Voice data message can match an OUI address, that is, after a switch judges that the data message is a Voice data message according to the source MAC address carried in the data message entering a port of the switch, the port of the Voice data message is automatically added to a Voice VLAN, and a Voice VLAN tag is marked for the Voice data message, and the priority of the Voice data message is modified under the port, so that the Voice data message can be transmitted in the Voice VLAN in a centralized manner, and enjoys a higher transmission priority.
However, in a specific application, the voice device may not configure an OUI address (i.e. a voice device with a non-OUI voice address), and a source MAC address carried in a voice data packet sent by the voice device may not match the OUI address, but the prior art may only modify the priority of the voice data packet matching the OUI address, and may not modify the priority of the voice data packet not matching the OUI address, so that when traffic of a mixed voice data packet and a non-voice data packet is congested, the voice data packet with the non-OUI voice address with very high real-time performance may not be scheduled completely.
Disclosure of Invention
The embodiment of the invention discloses a message scheduling method and network equipment, which are used for modifying the priority of a voice data message of a non-OUI voice address and further realizing the comprehensive scheduling of the voice data message with very high real-time property. The specific scheme is as follows:
in one aspect, an embodiment of the present invention provides a packet scheduling method, where the method includes:
generating a voice priority control list; generating a voice address table item with a grade identification; receiving a voice data message; finding out that the OUI address of the non-global uniform identifier of the voice data message is matched with the voice address table item with the level identifier; according to the grade identification of the matched voice address table item, finding the matched priority table item in the voice priority control list; modifying the priority information of the voice data message according to the matched priority table item; and scheduling the voice data message according to the modified priority information of the voice data message.
On the other hand, an embodiment of the present invention provides a network device, which has a plurality of ports, a central processing unit and a forwarding unit; the voice control module of the central processing unit generates a voice priority control list and a voice address list item with a grade identification, and the information synchronization module of the central processing unit synchronizes the generated voice priority control list and the voice address list item with the grade identification to the forwarding unit; the forwarding unit receives a voice data message; finding out that the OUI address of the non-global uniform identifier of the voice data message is matched with the voice address table item with the level identifier; according to the grade identification of the matched voice address table item, finding the matched priority table item in the voice priority control list; modifying the priority information of the voice data message according to the matched priority table item; and scheduling the voice data message according to the modified priority information of the voice data message.
In the scheme, after a voice data message is received; searching the non-OUI voice address of the voice data message to be matched with a voice address table item with a grade identification; searching the matched priority list item in the voice priority control list according to the grade identification of the matched voice address list item; modifying the priority information of the voice data message according to the matched priority table item; and scheduling the voice data message according to the modified priority information of the voice data message. So as to modify the priority of the voice data message of the non-OUI voice address and further realize the comprehensive scheduling of the voice data message with very high real-time performance. Of course, it is not necessary for any product or method of practicing the invention to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a message scheduling method according to an embodiment of the present invention;
fig. 2 is another schematic flow chart of a message scheduling method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a network device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a message scheduling method and network equipment, which are used for modifying the priority of a voice data message of a non-OUI voice address so as to realize comprehensive scheduling of the voice data message with very high real-time property.
It is understood that after a Link Layer Discovery Protocol (LLDP) is configured on a switch, the switch can automatically discover a voice device (such as an IP phone, etc.) through the LLDP. The switch configured with the LLDP can perform protocol information interaction with the opposite-end device, automatically discover the voice device according to the protocol information, and enable the voice device accessed to the network to be no longer limited by an OUI (universal uniform Identifier) address through a mode of automatically discovering the voice device by the LLDP. At this time, a situation that some voice devices are not configured with OUI addresses occurs, and for a switch, the switch cannot modify the priority of a voice data packet sent by the voice device that is not configured with an OUI address, which results in that when traffic of a mixed voice data packet and a non-voice data packet is congested, the voice data packet with very high real-time performance cannot be scheduled comprehensively.
First, a method for scheduling a packet according to an embodiment of the present invention is described below.
As shown in fig. 1, a method for scheduling a packet according to an embodiment of the present invention may include:
s101: generating a voice priority control list;
wherein, the voice priority control list may be: an ACL (Access Control List) that modifies a voice priority table entry is configured.
S102: generating a voice address table item with a grade identification;
the class ID may be a class _ ID value, and the voice address table entry may be a voice MAC (Media Access Control) address table entry. The voice priority control list and the voice address list items with the grade marks are generated for the central processing unit of the equipment and are synchronized to the subsequent mentioned forwarding unit. The central processing unit may be a CPU or the like.
S103: receiving a voice data message;
s104: finding out that the non-OUI voice address of the voice data message matches the voice address list item with the grade identification;
it should be noted that, after receiving a voice data message, a source MAC address may be parsed from the voice data message, and after matching the source MAC address from a voice address table entry having a level identifier, a subsequent message scheduling process may be performed.
S105: according to the grade identification of the matched voice address table item, finding the matched priority table item in the voice priority control list;
the voice priority control list records the corresponding relation between the priority list item and the grade mark, and the matched priority list item can be searched from the voice priority control list through the grade mark of the matched voice address list item.
S106: modifying the priority information of the voice data message according to the matched priority table item;
s107: and scheduling the voice data message according to the modified priority information of the voice data message.
The priority corresponding to the priority information after the voice data message is modified is higher than the original priority of the voice data message and higher than the priority of the non-voice data message.
After the embodiment of the invention is applied, the voice data message is received; searching the non-OUI voice address of the voice data message to be matched with a voice address table item with a grade identification; searching the matched priority list item in the voice priority control list according to the grade identification of the matched voice address list item; modifying the priority information of the voice data message according to the matched priority table item; and scheduling the voice data message according to the modified priority information of the voice data message. So as to modify the priority of the voice data message of the non-OUI voice address and further realize the comprehensive scheduling of the voice data message with very high real-time performance.
As shown in fig. 2, a message scheduling method provided in the embodiment of the present invention is as follows.
The switch (or routing device) configures LLDP and starts auto-discovery voice device function, wherein there are a plurality of ports in the switch, the central processing unit 21 (e.g., CPU) of the switch enables the voice virtual local area network VLAN of each port, and assigns a class identifier, such as a class _ ID value, to the ports having the same voice priority. Specifically, when the voice priority corresponding to the port is 7, the class _ ID value corresponding to the port is set to 7, when the voice priority corresponding to the port is 0, the class _ ID value corresponding to the port is set to 0, and so on.
The central processing unit 21 generates a voice priority control list having a plurality of voice priority entries (e.g., configured with ACLs that modify the voice priority entries). Each speech priority table entry corresponds to a rank identifier, such as: the class _ ID value is set to 0, which corresponds to a speech priority of 3, and so on. Wherein, the larger the value corresponding to the priority, the higher the corresponding forwarding priority.
After receiving the LLDP message sent by the peer device 23 from the port, the forwarding unit 22 (e.g., forwarding chip) of the switch sends the LLDP message to the central processing unit 21 for processing.
After receiving the LLDP message, the central processing unit 21 determines that the opposite-end device 23 is a voice device according to the LLDP message, where the voice device is not configured with an OUI address, that is, an MAC address corresponding to the voice device is a non-OUI voice address; analyzing the MAC address of the opposite terminal equipment from the LLDP message to obtain the non-OUI voice address; and acquiring the distributed grade identification, namely the class _ ID value, according to the voice priority of the port receiving the LLDP message.
The central processing unit 21 generates a voice address table entry corresponding to the acquired non-OUI voice address and provided with the acquired level identifier.
The central processing unit 21 synchronizes the generated voice priority control list and the voice address table entry provided with the rank flag to the forwarding unit 22.
The forwarding unit 21 stores the voice priority control list synchronized by the central processing unit 21 and the voice address table entry provided with the rank identifier.
Then, after receiving the voice data packet sent by the peer device 23, the forwarding unit 22 parses the carried non-OUI voice address (MAC address) from the voice data packet, and finds the voice address table entry with the level identifier matching the non-OUI voice address of the voice data packet.
The forwarding unit 22 finds the priority table entry matching the level identifier from the voice priority control list according to the level identifier of the matched voice address table entry.
The forwarding unit 22 modifies the priority information of the voice data packet according to the matched priority table entry. Wherein the modification procedure is the same as in the prior art.
The forwarding unit 22 schedules the voice data packet according to the modified priority information.
It can be understood that the port is set for the user, the voice priority of the port can be set by the user according to the self-requirement, and since the level identifier is determined according to the voice priority of the port receiving the LLDP message, to a certain extent, the user can set the priority information of the voice data message by setting the voice priority of the port according to the self-requirement.
Corresponding to the above method embodiment, as shown in fig. 3, an embodiment of the present invention provides a network device 300, which has a plurality of ports, and includes a central processing unit 310 and a forwarding unit 320, where the central processing unit 310 includes a voice control module 311 and an information synchronization module 312;
the voice control module 311 of the central processing unit 310 generates a voice priority control list and a voice address list item with a level identifier, and the information synchronization module 312 of the central processing unit 310 synchronizes the generated voice priority control list and the voice address list item with the level identifier to the forwarding unit 320;
the forwarding unit 320 receives a voice data message; finding out that the OUI address of the non-global uniform identifier of the voice data message is matched with the voice address table item with the level identifier; according to the grade identification of the matched voice address table item, finding the matched priority table item in the voice priority control list; modifying the priority information of the voice data message according to the matched priority table item; and scheduling the voice data message according to the modified priority information of the voice data message.
The network device may be a routing device, a switch device, or the like.
After the embodiment of the invention is applied, the voice data message is received; searching the non-OUI voice address of the voice data message to be matched with a voice address table item with a grade identification; searching the matched priority list item in the voice priority control list according to the grade identification of the matched voice address list item; modifying the priority information of the voice data message according to the matched priority table item; and scheduling the voice data message according to the modified priority information of the voice data message. So as to modify the priority of the voice data message of the non-OUI voice address and further realize the comprehensive scheduling of the voice data message with very high real-time performance.
In a specific implementation manner, the central processing unit 310 enables a voice virtual local area network VLAN of each port; allocating a grade mark to the ports with the same voice priority; generating the voice priority control list having a plurality of the voice priority entries; wherein, each voice priority table entry records the voice priority corresponding to the assigned grade identification.
In a specific implementation manner, the central processing unit 310 generates the voice address table entry with the level identifier; receiving a link layer discovery protocol message; acquiring the non-OUI voice address carried by the LLDP message; acquiring a distributed grade identifier according to the voice priority of a receiving port of the LLDP protocol message; and generating the non-OUI voice address to generate a voice address table item, and setting the acquired grade identifier for the generated voice address table item.
For the system/apparatus embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and reference may be made to some descriptions of the method embodiments for relevant points.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Those skilled in the art will appreciate that all or part of the steps in the above method embodiments may be implemented by a program to instruct relevant hardware to perform the steps, and the program may be stored in a computer-readable storage medium, which is referred to herein as a storage medium, such as: ROM/RAM, magnetic disk, optical disk, etc.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims (4)

1. A method for scheduling packets, the method comprising:
generating a voice priority control list;
generating a voice address table item with a grade identification;
receiving a voice data message;
searching the non-OUI voice address of the voice data message to be matched with the voice address list item with the grade identification;
according to the grade identification of the matched voice address table item, finding the matched priority table item in the voice priority control list;
modifying the priority information of the voice data message according to the matched priority table item;
scheduling the voice data message according to the priority information modified by the voice data message;
wherein generating the voice priority control list comprises:
enabling a voice Virtual Local Area Network (VLAN) of each port;
allocating a grade mark to the ports with the same voice priority;
generating the voice priority control list having a plurality of the voice priority entries; wherein, each voice priority table entry records the voice priority corresponding to the assigned grade identification;
generating the voice address table entry with the level identifier includes:
receiving a link layer discovery LLDP message;
acquiring the non-OUI voice address carried by the LLDP message;
acquiring a distributed grade identifier according to the voice priority of a receiving port of the LLDP message;
and generating a voice address table entry which corresponds to the non-OUI voice address and is provided with the acquired grade identification.
2. The method of claim 1, wherein a central processing unit generates the voice priority control list and generates the voice address table entry with rank identification; the central processing unit synchronizes the generated voice priority control list and the generated voice address list items with the grade identifications to a forwarding unit.
3. The method of claim 2 wherein the forwarding unit receives a voice data packet and finds that a non-OUI voice address of the voice data packet matches the voice address entry.
4. A network device is provided with a plurality of ports, a central processing unit and a forwarding unit, and is characterized in that a voice control module of the central processing unit generates a voice priority control list and a voice address list item with a grade identifier, and an information synchronization module of the central processing unit synchronizes the generated voice priority control list and the generated voice address list item with the grade identifier to the forwarding unit;
the forwarding unit receives a voice data message; searching the non-OUI voice address of the voice data message to be matched with the voice address list item with the grade identification; according to the grade identification of the matched voice address table item, finding the matched priority table item in the voice priority control list; modifying the priority information of the voice data message according to the matched priority table item; scheduling the voice data message according to the modified priority information of the voice data message;
the central processing unit enables a voice Virtual Local Area Network (VLAN) of each port; allocating a grade mark to the ports with the same voice priority; generating the voice priority control list having a plurality of the voice priority entries; wherein, each voice priority table entry records the voice priority corresponding to the assigned grade identification;
the central processing unit generates the voice address table entry with the grade identification; receiving a link layer discovery LLDP message; acquiring the non-OUI voice address carried by the LLDP message; acquiring a distributed grade identifier according to the voice priority of a receiving port of the LLDP message; and generating a voice address table entry which corresponds to the non-OUI voice address and is provided with the acquired grade identification.
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CN103312908A (en) * 2013-06-04 2013-09-18 武汉烽火网络有限责任公司 Data transmission method used for Voice VLAN (virtual local logic network)
CN104717380A (en) * 2015-04-09 2015-06-17 迈普通信技术股份有限公司 Switchboard, speech ciphering equipment, IP telephone system and speech ciphering equipment deployment method

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CN102447669A (en) * 2010-09-30 2012-05-09 迈普通信技术股份有限公司 Forwarding method of multimedia data streams and forwarding equipment
CN103312908A (en) * 2013-06-04 2013-09-18 武汉烽火网络有限责任公司 Data transmission method used for Voice VLAN (virtual local logic network)
CN104717380A (en) * 2015-04-09 2015-06-17 迈普通信技术股份有限公司 Switchboard, speech ciphering equipment, IP telephone system and speech ciphering equipment deployment method

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