CN109274591A - A kind of method for forwarding multicast message and device - Google Patents
A kind of method for forwarding multicast message and device Download PDFInfo
- Publication number
- CN109274591A CN109274591A CN201811369365.6A CN201811369365A CN109274591A CN 109274591 A CN109274591 A CN 109274591A CN 201811369365 A CN201811369365 A CN 201811369365A CN 109274591 A CN109274591 A CN 109274591A
- Authority
- CN
- China
- Prior art keywords
- multicast
- mtu
- interface
- hello packet
- interface mtu
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/20—Support for services
- H04L49/201—Multicast operation; Broadcast operation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The disclosure provides a kind of method for forwarding multicast message and device, routing device can be made to obtain the minimal interface MTU of routing device in multicast network, and multicast MTU is set by the minimal interface MTU, then multicast protocol message, the multicast protocol message described in multicast in multicast network are assembled according to the multicast MTU.Compared with the prior art, the disclosure can be by assembling multicast protocol message according to minimal interface MTU in multicast network, make multicast protocol message not fragment, therefore can to avoid routing device because fragment module it is busy caused by Packet reassembling fail the case where, solve the problems, such as that multicast service flow interrupts, to improve the stability of multicast network.
Description
Technical field
This disclosure relates to field of communication technology more particularly to a kind of method for forwarding multicast message and device.
Background technique
In existing multicast service network, the address that terminal usually has a large amount of different multicast groups needs to connect from server
Flux of multicast is received, after terminal is registered on the router, PIM (Protocol can be sent to server by router hop-by-hop
Independent Multicast, Protocol Independent Multicast) Join/Prune (is added/cuts out) message.
MTU (Maximum Transmission Unit, maximum transmission unit) refers on a kind of a certain layer of communication protocol
The maximum data packet size that face can pass through, MTU is as unit of byte.
Summary of the invention
In view of this, the disclosure provides a kind of method for forwarding multicast message and device to solve excessive fragment in the prior art
Multicast message is caused to forward obstructed problem.
Specifically, the disclosure is achieved by the following technical solution:
The disclosure provides a kind of method for forwarding multicast message, and the method is applied to routing device, which comprises
Obtain the minimal interface MTU of routing device in multicast network；
Multicast MTU is set by the minimal interface MTU；
Multicast protocol message, the multicast protocol message described in multicast in multicast network are assembled according to the multicast MTU.
Based on identical design, the disclosure also provides a kind of multicast message retransmission unit, and described device is applied to routing and sets
Standby, described device includes:
Acquiring unit, for obtaining the minimal interface MTU of routing device in multicast network；
The minimal interface MTU is set multicast MTU by setting unit；
Assembling unit, for assembling multicast protocol message, the multicast described in multicast in multicast network according to the multicast MTU
Protocol massages.
Based on identical design, the disclosure also provides a kind of computer readable storage medium, the computer-readable storage
Dielectric memory contains computer program, and any step of route computing method is realized when the computer program is executed by processor
Suddenly.
Based on identical design, the disclosure also provides a kind of computer equipment, and the computer equipment includes memory, place
Manage device, communication interface and communication bus；Wherein, the memory, processor, communication interface are carried out by the communication bus
Mutual communication；
The memory, for storing computer program；
The processor, for executing the computer program stored on the memory, described in the processor executes
The either step of route computing method is realized when computer program.
It can be seen that the disclosure can make the minimal interface MTU of routing device in routing device acquisition multicast network, and will
The minimal interface MTU is set as multicast MTU, then multicast protocol message is assembled according to the multicast MTU, in multicast network
Multicast protocol message described in multicast.Compared with the prior art, the disclosure can be by according to minimal interface MTU group in multicast network
Multicast protocol message is filled, multicast protocol message length is controlled, makes multicast protocol message not fragment, therefore can be to avoid routing device
Because fragment module it is busy caused by Packet reassembling fail the case where, solves the problems, such as multicast service flow interruption, to improve
The stability of multicast network.
Detailed description of the invention
Fig. 1 is a kind of process flow diagram of one of illustrative embodiments of disclosure method for forwarding multicast message；
Fig. 2 is the multicast network schematic diagram in a kind of illustrative embodiments of the disclosure；
Fig. 3 is the multicast message interaction diagrams in a kind of illustrative embodiments of the disclosure；
The building-block of logic of multicast message retransmission unit in a kind of illustrative embodiments of Fig. 4 disclosure；
A kind of building-block of logic of one of illustrative embodiments of Fig. 5 disclosure network equipment.
Specific embodiment
Since the group that terminal is usually added into is more, the PIM Join/Prune message that terminal is sent can be sent out by router fragment
Give the router of next-hop；After the router of next-hop receives the PIMJoin/Prune message of these fragments, need to carry out weight
Group.At this point, when can not carry out reorganization in time, will lead to PIM if the fragment module on the router of the next-hop is busy
The failure of Join/Prune Packet reassembling eventually leads to the interruption of multicast service flow, causes significant impact.
Of the existing technology in order to solve the problems, such as, the disclosure provides a kind of method for forwarding multicast message and device, can be with
So that routing device is obtained the minimal interface MTU of routing device in multicast network, and sets multicast for the minimal interface MTU
Then MTU assembles multicast protocol message, multicast multicast protocol message in multicast network according to the multicast MTU.Compared to
The prior art, the disclosure can control multicast protocol by assembling multicast protocol message according to minimal interface MTU in multicast network
Message length, makes multicast protocol message not fragment, thus can to avoid routing device because fragment module it is busy caused by message weight
The case where group failure, solves the problems, such as that multicast service flow interrupts, to improve the stability of multicast network.
Referring to FIG. 1, being a kind of processing stream of one of illustrative embodiments of disclosure method for forwarding multicast message
Cheng Tu, the method are applied to routing device, which comprises
Step 101, the minimal interface MTU for obtaining routing device in multicast network；
In the present embodiment, the routing device in multicast network can obtain multicast by carrying out message interaction with neighbours
The size of the minimal interface MTU of whole routing devices this parameter in network usually has with the communication interface performance of the network equipment
It closes.More routing devices are usually deployed in multicast network, the interface mtu of each routing device is not quite similar, the present embodiment
The minimal interface in whole routing devices of the interactive learning between neighbours' routing device to the multicast network can be passed through
MTU。
Specifically, as one embodiment, routing device can receive the first PIM of neighbours' routing device transmission
Hello (PIM says hello) message carries interface mtu in the first PIM hello packet, which is that the neighbor device is thought
Minimal interface MTU.
In an alternate embodiment of the invention, it can be used by increasing a kind of Option (option) field newly in PIM hello packet
It specifically can specifically include in the Option field in the maximum message size for negotiating to send multicast protocol message:
Option Type (option type), for indicating the corresponding option type of Option Value (option value) field；
Option Length (option), for indicating the length of Option Value field；
OptionValue, for indicating option occurrence, length is Option Length.
In the present embodiment, Option Value carries the routing device and sends connecing for the first PIM hello packet interface
Mouthful MTU, the interface mtu be with from other (except when other than the 2nd PIMHello messages that preceding routing device is sent) PIM
The minimal interface MTU learnt in hello packet, minimal interface MTU determine routing device forwards message in multicast network
Maximum message size.
As one embodiment, this routing device can parse the specific field in the first PIM hello packet, example
Such as above-mentioned Option field, the interface mtu of the neighbor device is obtained from from the specific field.
In the present embodiment, when this routing device obtains connecing for the neighbor device carried in the first PIM hello packet
Mouth MTU；It can further judge whether the interface mtu of itself is greater than the interface mtu of the neighbor device；If so, explanation is certainly
The interface mtu of body is not the minimal interface MTU in multicast network, thus may determine that the interface mtu of the neighbor device is most
Small interface mtu, and the 2nd PIM hello packet is sent, the 2nd PIM hello packet carries the minimal interface MTU, with
The neighbor device of this routing device is set to learn the minimal interface MTU in multicast network according to the 2nd PIM hello packet；If it is not,
Then illustrate that the interface mtu in the first PIM hello packet is not minimal interface MTU, and thinks that the interface mtu of itself is learned to be current
The minimal interface MTU practised, therefore this routing device can send the 3rd PIM hello packet, the third to neighbor device
PIM hello packet carries the interface mtu of itself, so that neighbor device is according to the interface carried in the 3rd PIM hello packet
MTU further identifies the minimal interface MTU in multicast network.
The minimal interface MTU is set multicast MTU by step 102；
In the present embodiment, when routing device has determined the minimal interface in current multicast network in whole routing devices
When MTU, multicast MTU can be set by minimal interface MTU.
Step 103 assembles multicast protocol message, the multicast protocol described in multicast in multicast network according to the multicast MTU
Message.
In the present embodiment, this routing device can assemble multicast protocol message according to above-mentioned multicast MTU, in multicast network
Multicast protocol message described in middle multicast, so that multicast protocol message size meets the interface of routing device whole in multicast network
MTU, to avoid the problem that multicast protocol message fragment.
As one embodiment, this routing device can update multicast MTU according to preset period of time for example can
Before the minimal interface MTU of routing device in obtaining multicast network, first judge whether to reach preset period of time, if so,
The minimal interface MTU of routing device in multicast network is then obtained in current time period.Specifically, this routing device is being worked as
After receiving the first PIMHello message in the preceding time cycle, judge whether the interface mtu of itself is greater than connecing for the neighbor device
Mouth MTU；If so, determining that the interface mtu of the neighbor device is minimal interface MTU, and sends and carry in current time period
The 2nd PIM hello packet of the minimal interface MTU；If it is not, then sending the interface mtu of carrying itself in current time period
The 3rd PIM hello packet.Therefore minimal interface MTU in multicast network can be obtained by the temporally period, dynamically to set
It sets multicast protocol message to give out a contract for a project length, to avoid the problem that message fragment.
Compared with the prior art, the present invention can negotiate to send multicast by interaction PIM hello packet between neighbours
The maximum message size of protocol massages, so that multicast protocol message is avoided to be more than interface mtu and generate fragment and regrouping process, into
And problem of service interruption caused by solving because of frament reassembling process.
For the objects, technical solutions and advantages of the disclosure are more clearly understood, below based on the multicast network knot of Fig. 2
Structure is described in further detail the scheme of the disclosure by the multicast message interaction flow of Fig. 3.
Referring to FIG. 2, being multicast network structural schematic diagram, terminal receives the group that server is sent by multicast network and broadcasts
Text.In multicast network establishment process, routing device A1, routing device A2, routing device A3, routing device A4 and routing device
The multicast MTU that A5 can recorde defaults to interface mtu, and routing device periodically sends PIM to the neighbor device of routing device
Hello packet, the PIMHello message carry Option field, wherein the filling road PimIntfMTU (minimal interface MTU) Zhi Wei
The interface mtu on the interface of PIM hello packet is sent by equipment.
It is with the interactive process in a time cycle between routing device A1 and routing device A2, routing device A3 below
Example, is described in detail the retransmission method of multicast message.
Fig. 3 is referred to, is the interaction diagrams of routing device in embodiment of the disclosure, including:
Step 301, multicast network routing device A1, A2, A3 are periodically sent to neighbor device in current time period
PIM hello packet, the PimIntfMTU value carried respectively are the interface mtu of interface of itself giving out a contract for a project, it is assumed that routing device A1,
The interface mtu of A2, A3 are a1, a2, a3 respectively, it is assumed that a2 < a1 < a3；
Step 302, when routing device A1 receive neighbor device A2 send PIM hello packet after, parse PIM Hello
PimIntfMTU field in message, obtaining interface mtu is a2, which is connect with what this routing device A1 was recorded
Mouth MTU (a1) compares；
Step 303, due to a2 < a1, then a2 is updated to minimal interface MTU by this routing device A1, is set as self record
Multicast _ MTU PIM hello packet is sent again, wherein the PimIntfMTU word carried and in current time period
Interface mtu value in section is a2；
Step 304, when routing device A2 receive neighbor device A1 send PIM hello packet after, parse PIM Hello
PimIntfMTU field in message, obtaining interface mtu is a1, then records the interface mtu (a1) and this routing device A2
Interface mtu (a2) compare, due to a2 < a1, routing device A2 does not have to update local interface mtu；
Step 305, when routing device A3 receive neighbor device A2 send PIM hello packet after, parse PIM Hello
PimIntfMTU field in message, obtaining interface mtu is a2, which is connect with what this routing device A3 was recorded
Mouth MTU (a3) compares；
Step 306, due to a2 < a3, then a2 is updated to minimal interface MTU by this routing device A3, be set as multicast _
MTU, and in current time period, PIM hello packet is sent again, wherein connecing in the PimIntfMTU field carried
Mouth MTU value is a2；
Step 307, when routing device A2 receive neighbor device A3 send PIM hello packet after, parse PIM Hello
PimIntfMTU field in message, obtaining interface mtu is a3, then records the interface mtu (a3) and this routing device A2
Interface mtu (a2) compare, due to a2 < a3, routing device A2 does not have to update local interface mtu；
After current period compares, all Multicast Routing equipment eventually learn the minimal interface into whole network
Minimal interface MTU is set multicast MTU by MTU (a2).When sending PIMJoin/Prune message, come according to multicast MTU
PIM Join/Prune message is assembled, to ensure that PIMJoin/Prune message is not fragmented.If subsequent time period minimal interface
MTU changes, then routing device dynamically adjusts PIM Join/Prune message length by study minimal interface MTU, with
Adapt to current network environment.
Above-described embodiment is only illustrated by taking the interaction between routing device A1, A2, A3 as an example, between other routing devices
Interaction it is similar to the above process, details are not described herein again.
Based on identical design, the disclosure also provides a kind of router-level topology device, the device can by software realization,
It can be realized by way of hardware or software and hardware combining.Taking software implementation as an example, the router-level topology device conduct of the disclosure
Device on one logical meaning is to be read computer program instructions corresponding in memory by the CPU of device where it
After run.
Referring to FIG. 4, be a kind of one of illustrative embodiments of disclosure multicast message retransmission unit 400, it is described
Device is applied to routing device, and from logic level, the logical construction of the device 400 includes:
Acquiring unit 401, for obtaining the minimal interface MTU of routing device in multicast network；
The minimal interface MTU is set multicast MTU by setting unit 402；
Assembling unit 403, for assembling multicast protocol message according to the multicast MTU, in multicast network described in multicast
Multicast protocol message.
As one embodiment, the acquiring unit 401, comprising:
Receiving subelement 4011 obtains the first PIMHello message and carries for receiving the first PIM hello packet
Neighbor device interface mtu；
Judgment sub-unit 4012, for judging whether the interface mtu of itself is greater than the interface mtu of the neighbor device；If
It is, it is determined that the interface mtu of the neighbor device is minimal interface MTU, and sends the 2nd PIM hello packet, described second
PIM hello packet carries the minimal interface MTU；If it is not, then sending the 3rd PIM hello packet, the 3rd PIM
Hello packet carries the interface mtu of itself.
As one embodiment, the receiving subelement 4011 is specifically used for parsing in the first PIMHello message
Specific field；The interface mtu of the neighbor device is obtained from the specific field.
As one embodiment, described device further include:
Judging unit 404 before the minimal interface MTU for obtaining routing device in multicast network, judges whether to reach
Preset period of time, if so, obtaining the minimal interface MTU in multicast network in current time period；
The judgment sub-unit 4012 is specifically used for sending the 2nd PIM hello packet in current time period.
Based on identical design, the disclosure also provides a kind of network machine equipment, as shown in figure 5, the computer equipment packet
Include memory 51, processor 52, communication interface 53 and communication bus 54；Wherein, the memory 51, processor 52, communication
Interface 53 carries out mutual communication by the communication bus 54；
The memory 51, for storing computer program；
The processor 52, for executing the computer program stored on the memory 51, the processor 52 is held
The either step for the method for forwarding multicast message that the embodiment of the present disclosure provides is realized when the row computer program.
The disclosure also provides a kind of computer readable storage medium, which is characterized in that the computer readable storage medium
It is inside stored with computer program, the multicast message that the embodiment of the present disclosure provides is realized when the computer program is executed by processor
The either step of retransmission method.
Each embodiment in this specification is all made of relevant mode and describes, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.It is set especially for network
For standby and computer readable storage medium embodiment, since it is substantially similar to the method embodiment, so the comparison of description
Simply, the relevent part can refer to the partial explaination of embodiments of method.
In conclusion the disclosure can make the minimal interface MTU of routing device in routing device acquisition multicast network, and will
The minimal interface MTU is set as multicast MTU, then multicast protocol message is assembled according to the multicast MTU, in multicast network
The multicast multicast protocol message.Compared with the prior art, the disclosure can be by assembling according to minimal interface MTU in multicast network
Multicast protocol message controls multicast protocol message length, makes multicast protocol message not fragment, thus can to avoid routing device because
The case where failure of Packet reassembling caused by fragment module is busy, solves the problems, such as that multicast service flow interrupts, to improve group
Broadcast the stability of network.
The function of each unit and the realization process of effect are specifically detailed in the above method and correspond to step in above-mentioned apparatus
Realization process, details are not described herein.
For device embodiment, since it corresponds essentially to embodiment of the method, so related place is referring to method reality
Apply the part explanation of example.The apparatus embodiments described above are merely exemplary, wherein described be used as separation unit
The unit of explanation may or may not be physically separated, and component shown as a unit can be or can also be with
It is not physical unit, it can it is in one place, or may be distributed over multiple network units.It can be according to actual
The purpose for needing to select some or all of the modules therein to realize application scheme.Those of ordinary skill in the art are not paying
Out in the case where creative work, it can understand and implement.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (10)
1. a kind of method for forwarding multicast message, which is characterized in that the method is applied to routing device, which comprises
Obtain the minimal interface maximum transmission unit MTU of routing device in multicast network；
Multicast MTU is set by the minimal interface MTU；
Multicast protocol message, the multicast protocol message described in multicast in multicast network are assembled according to the multicast MTU.
2. the method according to claim 1, wherein obtain multicast network in routing device minimal interface MTU,
Include:
It receives the first Protocol Independent Multicast to say hello PIM hello packet, obtains the neighbours that the first PIM hello packet carries
The interface mtu of equipment；
Judge whether the interface mtu of itself is greater than the interface mtu of the neighbor device；
If so, determining that the interface mtu of the neighbor device is minimal interface MTU, and send the 2nd PIM hello packet, institute
It states the 2nd PIM hello packet and carries the minimal interface MTU；
If it is not, then sending the 3rd PIM hello packet, the 3rd PIM hello packet carries the interface mtu of itself.
3. according to the method described in claim 2, it is characterized in that, obtaining the neighbours that the first PIM hello packet carries
The interface mtu of equipment, comprising:
Parse the specific field in the first PIM hello packet；
The interface mtu of the neighbor device is obtained from the specific field.
4. according to the method described in claim 2, it is characterized in that, obtaining the minimal interface MTU of routing device in multicast network
Before, the method also includes:
Judge whether to reach preset period of time, if so, obtaining routing device in multicast network in current time period
Minimal interface MTU；
The 2nd PIM hello packet of the transmission, specifically:
The 2nd PIM hello packet is sent in current time period.
5. a kind of multicast message retransmission unit, which is characterized in that described device is applied to routing device, and described device includes:
Acquiring unit, for obtaining the minimal interface maximum transmission unit MTU of routing device in multicast network；
The minimal interface MTU is set multicast MTU by setting unit；
Assembling unit, for assembling multicast protocol message, the multicast protocol described in multicast in multicast network according to the multicast MTU
Message.
6. device according to claim 5, which is characterized in that the acquiring unit, comprising:
Receiving subelement says hello PIM hello packet for receiving the first Protocol Independent Multicast, obtains the first PIM
The interface mtu for the neighbor device that hello packet carries；
Judgment sub-unit, for judging whether the interface mtu of itself is greater than the interface mtu of the neighbor device；If so, determining
The interface mtu of the neighbor device is minimal interface MTU, and sends the 2nd PIM hello packet, the 2nd PIM Hello
Message carries the minimal interface MTU；If it is not, then sending the 3rd PIM hello packet, the 3rd PIM hello packet is taken
With the interface mtu of itself.
7. device according to claim 6, which is characterized in that
The receiving subelement, specifically for parsing the specific field in the first PIM hello packet；From the designated word
The interface mtu of the neighbor device is obtained in section.
8. device according to claim 6, which is characterized in that described device further include:
Judging unit before the minimal interface MTU for obtaining routing device in multicast network, judges whether to reach preset time
Period, if so, obtaining the minimal interface MTU in multicast network in current time period；
The judgment sub-unit is specifically used for sending the 2nd PIM hello packet in current time period.
9. a kind of computer readable storage medium, which is characterized in that be stored with computer in the computer readable storage medium
Program, the step of claim 1-4 any the method is realized when the computer program is executed by processor.
10. a kind of network equipment, which is characterized in that the network equipment includes memory, processor, communication interface and communication
Bus；Wherein, the memory, processor, communication interface carry out mutual communication by the communication bus；
The memory, for storing computer program；
The processor, for executing the computer program stored on the memory, the processor executes the calculating
The step of claim 1-4 any the method is realized when machine program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811369365.6A CN109274591A (en) | 2018-11-16 | 2018-11-16 | A kind of method for forwarding multicast message and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811369365.6A CN109274591A (en) | 2018-11-16 | 2018-11-16 | A kind of method for forwarding multicast message and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109274591A true CN109274591A (en) | 2019-01-25 |
Family
ID=65189131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811369365.6A Pending CN109274591A (en) | 2018-11-16 | 2018-11-16 | A kind of method for forwarding multicast message and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109274591A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1909503A (en) * | 2005-08-05 | 2007-02-07 | 华为技术有限公司 | Method for detecting maximal transmission unit of path |
| CN101383760A (en) * | 2007-09-06 | 2009-03-11 | 日立通讯技术株式会社 | Packet forwarding apparatus |
| WO2010001301A1 (en) * | 2008-07-03 | 2010-01-07 | Telefonaktiebolaget L M Ericsson (Publ) | Optimal fragmentation of multicast packets |
| CN102291318A (en) * | 2011-09-22 | 2011-12-21 | 杭州华三通信技术有限公司 | Method for consulting maximum transmission unit (MTU) and router |
| CN105099937A (en) * | 2015-06-17 | 2015-11-25 | 杭州华三通信技术有限公司 | Method and equipment for determining PMTU |
| US20160248749A1 (en) * | 2013-02-19 | 2016-08-25 | Dell Products L.P. | Systems and methods for path maximum transmission unit discovery |
-
2018
- 2018-11-16 CN CN201811369365.6A patent/CN109274591A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1909503A (en) * | 2005-08-05 | 2007-02-07 | 华为技术有限公司 | Method for detecting maximal transmission unit of path |
| CN101383760A (en) * | 2007-09-06 | 2009-03-11 | 日立通讯技术株式会社 | Packet forwarding apparatus |
| WO2010001301A1 (en) * | 2008-07-03 | 2010-01-07 | Telefonaktiebolaget L M Ericsson (Publ) | Optimal fragmentation of multicast packets |
| CN102291318A (en) * | 2011-09-22 | 2011-12-21 | 杭州华三通信技术有限公司 | Method for consulting maximum transmission unit (MTU) and router |
| US20160248749A1 (en) * | 2013-02-19 | 2016-08-25 | Dell Products L.P. | Systems and methods for path maximum transmission unit discovery |
| CN105099937A (en) * | 2015-06-17 | 2015-11-25 | 杭州华三通信技术有限公司 | Method and equipment for determining PMTU |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9571382B2 (en) | Method, controller, and system for processing data packet | |
| EP2592793B1 (en) | Method and apparatus for forwarding multicast traffic | |
| CN107864228B (en) | Connection establishment method and system in content distribution network | |
| CN108259333B (en) | BUM flow control method, related device and system | |
| EP2843906B1 (en) | Method, apparatus, and system for data transmission | |
| WO2019029318A1 (en) | Network congestion notification method, proxy node and computer device | |
| CN109314662A (en) | Data transmission method and device | |
| US20170244628A1 (en) | Path Computation Element Hierarchical Software Defined Network Control | |
| WO2018113425A1 (en) | Method, apparatus and system for detecting time delay | |
| US20220150155A1 (en) | Method of establishing bidirectional forwarding detection session based on bier, and bfir, bfer, system and storage medium | |
| US11616724B2 (en) | Packet transmission method and apparatus | |
| CN112154627B (en) | Service-related routing method and device | |
| US10404611B2 (en) | Discovering path maximum transmission unit | |
| EP3985941A2 (en) | Path switching method, device, and system | |
| EP3032782B1 (en) | Packet transmission method and apparatus | |
| US20120327775A1 (en) | Protocol Independent Multicast with Quality of Service Support | |
| US9030926B2 (en) | Protocol independent multicast last hop router discovery | |
| US20180139139A1 (en) | Clos Network Load Balancing Method and Apparatus | |
| CN109274591A (en) | A kind of method for forwarding multicast message and device | |
| US11909546B2 (en) | Method and network node for sending and obtaining assert packet | |
| CN102904809B (en) | The bandwidth management methods, devices and systems of label forwarding path | |
| CN110881006A (en) | Method for sending message, network equipment and computer storage medium | |
| CN115486041B (en) | Data message format for communication across different networks | |
| EP4094421A2 (en) | Pce controlled network reliability | |
| CN107612827A (en) | A kind of method and apparatus for improving strange land data center vxlan network qualities |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190125 |
|
| RJ01 | Rejection of invention patent application after publication |