CN109687989A - A kind of networking method for acquiring topology and system - Google Patents
A kind of networking method for acquiring topology and system Download PDFInfo
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- CN109687989A CN109687989A CN201710989852.1A CN201710989852A CN109687989A CN 109687989 A CN109687989 A CN 109687989A CN 201710989852 A CN201710989852 A CN 201710989852A CN 109687989 A CN109687989 A CN 109687989A
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- network element
- element device
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/12—Discovery or management of network topologies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/25—Routing or path finding in a switch fabric
Abstract
The invention discloses a kind of physical layer switch port method for obtaining topology location and systems, by the way that physics layer switch first port and the first port to be checked are established connection；The first network element device being connected with the first port receives the equipment topology information that the second network element device being connected with the described first port to be checked is sent；Using the protocol interaction or overhead field of equipment room, the Topology Discovery of physics layer switch is completed indirectly by the intersection poll of physics layer switch.It solves the problems, such as not finding the topological connection relation with equipment by physics layer switch in the related technology.
Description
Technical field
The present invention relates to the communications fields, in particular to networking method for acquiring topology and system.
Background technique
Physics layer switch (L1Switch) or physical switches, are the switching equipment based on physical layer, it can be remote
Journey, flexible configuration and maintenance network topology, do not need artificial execute-in-place, are able to achieve DYNAMIC COMPLEX networking or logical topology
To the mapping of physical topology.
Physics layer switch is a kind of one layer of equipment, is worked in physical layer, and what itself was done is physical intersection, can't be with
The equipment of connection does protocol interaction.Therefore, the topological connection relation with equipment can not be found by physics layer switch at present,
It cannot achieve the topological automatic discovering of physical layer switchboard unit network.
Summary of the invention
The embodiment of the invention provides a kind of networking method for acquiring topology and systems, at least to solve in the related technology can not
The problem of topological connection relation with equipment is found by physics layer switch.
According to one embodiment of present invention, a kind of reason layer switch method for acquiring topology is provided, comprising: pre- meeting
If when condition, by the interaction of the first network element device and the second network element device, obtaining physics layer switch second port in network
In topology location；
Wherein, the preset condition includes: that the first port of the physics layer switch and the second port intersect company
It connects, the first port is connect with first network element device, and the second port is connect with second network element device, described
Known to the topology location of first port in a network.
Further, the interaction for passing through the first network element device and the second network element device obtains physics layer switch the
The topology location of Two-port netwerk in a network further include:
The facility information of second network element device is obtained by first network element device；
According to the topology location of second port in a network described in the apparatus information acquiring of second network element device.
Further, the facility information includes: the IP address information of second network element device, id information, MAC Address
At least one of information information；And the interface IP address information that second network element device is connect with the second port.
Preferably, described before the facility information for obtaining second network element device by first network element device
Method further include: second network element device sends second net to first network element device by communication between devices agreement
The facility information of element device.
Preferably, described before the facility information for obtaining second network element device by first network element device
Method further include: believe the equipment that the overhead field sending value of second network element device is set as second network element device
Breath.
According to another embodiment of the invention, a kind of acquisition system of topology location is additionally provided, comprising:
Physics layer switch, including first port and second port, wherein the first port and the second end oral sex
Fork connects, known to the topology location of the first port in a network；
Network element device, including the first network element device and the second network element device, wherein first network element device and described the
Single port connection, second network element device are connect with the second port；
First network element device obtains the second port in network for interacting with second network element device
In topology location.
Further, first network element device is also used to: obtaining the facility information of second network element device；
Further, the facility information includes: the IP address information of second network element device, id information, MAC Address
At least one of information information；
And the interface IP address information that second network element device is connect with the second port.
Preferably, second network element device is also used to passing through communication between devices agreement to first network element device
Send the facility information of second network element device.
Preferably, second network element device, is also used to for overhead field being sent to and is set as second network element device
Facility information.
Through the invention, due to the protocol interaction (such as link discovery protocols) or overhead field using equipment room, pass through object
The intersection poll for managing layer switch completes the Topology Discovery of physics layer switch indirectly, independent of the attached of physics layer switch
Add function.Therefore, the topological connection relation with equipment can be found by physics layer switch, calculating speed is fast, can be effective
Simplify environmental structure and maintenance work.This method is very suitable for being deployed with physics layer switch, and equipment room possesses agreement friendship
The laboratory of mutual or expense transmitting or computer room use.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the method flow diagram according to an embodiment of the present invention for realizing physical layer port automatic discovery to be checked；
Fig. 2 be it is according to an embodiment of the present invention using protocol communication interaction between network element device realize physical layer port to be checked from
The method flow diagram of dynamic discovery；
Fig. 3 is to realize that physical layer port to be checked is automatic using overhead field setting between network element device according to embodiments of the present invention
It was found that method flow diagram；
Fig. 4 is according to physics layer switch typical case's networking structure figure；
Fig. 5 is the first step connection structure diagram of alternative embodiment according to the present invention.
Fig. 6 is the second step connection structure diagram of alternative embodiment according to the present invention.
Fig. 7 is the third step connection structure diagram of alternative embodiment according to the present invention.
Fig. 8 is the 4th step connection structure diagram of alternative embodiment according to the present invention.
Fig. 9 is the 5th step connection structure diagram of alternative embodiment according to the present invention.
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.
Embodiment 1
By taking full mpsi layer interchanger as an example, equipment is using PTN (Packet Transport Network, grouping transmission
Net) equipment, interface selects 1G ethernet link, there is topological port, 3 unknown topologies ports known to 1 on physics layer switch.
The present embodiment is obtained by LLDP (Link Layer Discovery Protocol, Link Layer Discovery Protocol) between PTN device
To the topological address of physical port, the specific steps are as follows:
S101: the first PTN that physical layer switch port 1 (switch_port1) is 192.192.192.1 with IP address
Equipment connection, the connectivity port address (dut1_port1) is it is known that be gei-1/1/0/1；
S102: physical layer switch port 1 (switch_port1) and physical layer switch port 2 (switch_port2)
Connection is established, physical layer switch port 2 is connected with the second PTN device, and the address connectivity port (dut1_port1) is unknown；
It is communicated between S103: the first PTN device and the second PTN device with LLDP (link discovery protocols), the 2nd PTN is set
Standby port (dut1_port1) is sent to the first equipment sending device information being attached thereto by LLDP agreement, wraps in facility information
Include the interface IP address that the second PTN device is connected with physics layer switch, while including can the 2nd PTN port device of unique identification
Information, this can the information of the 2nd PTN port device of unique identification can be IP address, MAC Address or id information.
It can thus be concluded that the second PTN device IP address: 192.192.192.2, the interface IP address with physical layer switch port 2
Gei-1/8/0/4, at this point, learning that the address (switch_port2) of physical layer switch port 2 is gei-1/8/0/4；
S104: efficiency is found to improve unknown port topology, two known ports of physics layer switch are intersected to two
A unknown port, i.e. port 1 (switch_port1) are connected to port 3 (switch_port3), port 2 (switch_port2)
It is connected to port 4 (switch_port4)；
S105: after establishing connection, it is that opposite end is found by LLDP agreement in the port (dut1_port1) of the first PTN device
The connectivity port (dut3_port1) (equipment 192.192.192.3 port gei-1/2/0/1) of three PTN devices；
The port (dut2_port1) of second PTN device opposite end (dut4_port1) (equipment is found by LLPD agreement
192.192.192.4 port gei-1/7/0/3)；
It can thus be concluded that physical layer switch port 3 (switch_port3) connects third PTN device, IP address are as follows:
192.192.192.3 connectivity port address is gei-1/2/0/1；
Physical layer switch port 4 (switch_port4) connects (equipment 192.192.192.4 port gei-1/7/0/
3)；
Because can indicate the topological structure of the port with the address information that port connects equipment, at this time 3 unknown ports
Topological relation all discovery finishes, it is as shown in the table:
| Physical switch | Topological relation |
| switch_port1 | Connect equipment 192.192.192.1, connectivity port gei-1/1/0/1 |
| switch_port2 | Connect equipment 192.192.192.2, connectivity port gei-1/8/0/4 |
| switch_port3 | Connect equipment 192.192.192.3, connectivity port gei-1/2/0/1 |
| switch_port4 | Connect equipment 192.192.192.4, connectivity port gei-1/7/0/3 |
Embodiment 2
By taking full mpsi layer interchanger as an example, equipment uses PTN device, and interface selects stm1 interface, physics layer switch
On have known to 1 a topological port, 3 unknown topologies ports, this implementations passes through the overhead field that sends between PTN device, acquisition
The topological address of physical port.
S201: the first PTN that physical layer switch port 1 (switch_port1) is 192.192.192.1 with IP address
Equipment connection, the connectivity port address (dut1_port1) is it is known that be stm1-2/1；
S202: physical layer switch port 1 (switch_port1) and physical layer switch port 2 (switch_port2)
Connection is established, physical layer switch port 2 is connected with the second PTN device, and the address connectivity port (dut1_port1) is unknown；
S203: under the interface of all PTN devices, setting J0 sending value is device address mark and interface identifier.Such as
Equipment 192.192.192.2 interface stm1-1/1, then settable J0 sending value is ip:192.192.192.2, interface:
stm1-1/1；
The Overhead that the second PTN device is sent is received from the first PTN device, obtained J0 reception value, is second
The topology information of PTN device；
S204: efficiency is found to improve unknown port topology, two known ports of physics layer switch are intersected to two
A unknown port, i.e. port 1 (switch_port1) are connected to port 3 (switch_port3), port 2 (switch_port2)
It is connected to port 4 (switch_port4)；
S205: after establishing connection, it is that opposite end is found by overhead byte in the port (dut1_port1) of the first PTN device
The connectivity port (dut3_port1) (equipment 192.192.192.3 port stm1-3/1) of three PTN devices.
The port (dut2_port1) of second PTN device opposite end (dut4_port1) (equipment is found by LLPD agreement
192.192.192.4 port stm1-4/1).
It can thus be concluded that physical layer switch port 3 (switch_port3) connects third PTN device, IP address are as follows:
192.192.192.3 connectivity port address is stm1-3/1；
Physical layer switch port 4 (switch_port4) connects (equipment 192.192.192.4 port stm1-4/1)；
Because can indicate the topological structure of the port with the address information that port connects equipment, at this time 3 it is unknown
All discovery finishes the topological relation of port, as shown in the table:
| Physical switch | Topological relation |
| switch_port1 | Connect equipment 192.192.192.1, connectivity port stm1-2/1 |
| switch_port2 | Connect equipment 192.192.192.2, connectivity port stm1-1/1 |
| switch_port3 | Connect equipment 192.192.192.3, connectivity port stm1-3/1 |
| switch_port4 | Connect equipment 192.192.192.4, connectivity port stm1-4/1 |
By above embodiments it is found that due to the protocol interaction (such as link discovery protocols) or expense word using equipment room
Section completes the Topology Discovery of physics layer switch by the intersection poll of physics layer switch, independent of physical layer indirectly
The additional function of interchanger.Therefore, the topological connection relation with equipment, calculating speed can be found by physics layer switch
Fastly, environmental structure and maintenance work can effectively be simplified.This method is very suitable for being deployed with physics layer switch, and equipment room is gathered around
The laboratory or computer room for having protocol interaction or expense transmitting use.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, above-mentioned program can be stored in a computer-readable storage medium
In, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, above-mentioned storage medium can be magnetic
Dish, light camphor tree, read-only memory (mono- On1y Memory of RUM:Read) or random access memory (RAM:
RandomAccess Memory) etc..
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.It is all within principle of the invention, it is made it is any modification, etc.
With replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of physical layer switch-layer topology acquisition methods characterized by comprising
When meeting preset condition, by the interaction of the first network element device and the second network element device, physics layer switch the is obtained
The topology location of Two-port netwerk in a network；
Wherein, the preset condition includes: the first port and the second port interconnection of the physics layer switch, institute
First port to be stated to connect with first network element device, the second port is connect with second network element device, and described first
Known to the topology location of port in a network.
2. as right wants 1 the method, which is characterized in that the interaction for passing through the first network element device and the second network element device,
Obtain the topology location of physics layer switch second port in a network, comprising:
The facility information of second network element device is obtained by first network element device；
According to the topology location of second port in a network described in the apparatus information acquiring of second network element device.
3. method as claimed in claim 2, which is characterized in that the facility information includes:
At least one of the IP address information of second network element device, id information, mac address information information；
And the interface IP address information that second network element device is connect with the second port.
4. method as described in claim 1, which is characterized in that set obtaining second network element by first network element device
Before standby facility information, the method also includes:
Second network element device sends second network element device to first network element device by communication between devices agreement
Facility information.
5. method as described in claim 1, which is characterized in that set obtaining second network element by first network element device
Before standby facility information, the method also includes:
Set the overhead field sending value of second network element device to the facility information of second network element device.
6. a kind of acquisition system of topology location characterized by comprising
Physics layer switch, including first port and second port, wherein the first port and the second port intersect company
It connects, known to the topology location of the first port in a network；
Network element device, including the first network element device and the second network element device, wherein first network element device and the first end
Mouth connection, second network element device are connect with the second port；
First network element device obtains the second port in a network for interacting with second network element device
Topology location.
7. system as claimed in claim 6, which is characterized in that first network element device is also used to:
Obtain the facility information of second network element device.
8. system as claimed in claim 7, which is characterized in that the facility information includes:
At least one of the IP address information of second network element device, id information, mac address information information；
And the interface IP address information that second network element device is connect with the second port.
9. system as claimed in claim 7, which is characterized in that second network element device is also used to passing through communication between devices
Agreement sends the facility information of second network element device to first network element device.
10. system as claimed in claim 7, which is characterized in that second network element device is also used to for overhead field being sent to
It is set as the facility information of second network element device.
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| CN201710989852.1A CN109687989B (en) | 2017-10-19 | 2017-10-19 | Networking topology obtaining method and system |
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| CN201710989852.1A CN109687989B (en) | 2017-10-19 | 2017-10-19 | Networking topology obtaining method and system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1639606A (en) * | 2002-02-27 | 2005-07-13 | 沃比乌姆公司 | Method and arrangement for signaling in a networkcomprising nodes with optical ports |
| US20140185613A1 (en) * | 2012-12-28 | 2014-07-03 | Fujitsu Limited | Multiple path control for multicast communication |
| CN104468365A (en) * | 2014-07-09 | 2015-03-25 | 北京东土科技股份有限公司 | Method, system and device for obtaining topology connection relationship between devices |
| CN104753695A (en) * | 2013-12-25 | 2015-07-01 | 上海宽带技术及应用工程研究中心 | Discovery and real-time display system and method for SDN (Software Defined Network) network topology |
| CN106161103A (en) * | 2016-08-18 | 2016-11-23 | 上海帝联信息科技股份有限公司 | Switch-layer topology construction method and device |
-
2017
- 2017-10-19 CN CN201710989852.1A patent/CN109687989B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1639606A (en) * | 2002-02-27 | 2005-07-13 | 沃比乌姆公司 | Method and arrangement for signaling in a networkcomprising nodes with optical ports |
| US20140185613A1 (en) * | 2012-12-28 | 2014-07-03 | Fujitsu Limited | Multiple path control for multicast communication |
| CN104753695A (en) * | 2013-12-25 | 2015-07-01 | 上海宽带技术及应用工程研究中心 | Discovery and real-time display system and method for SDN (Software Defined Network) network topology |
| CN104468365A (en) * | 2014-07-09 | 2015-03-25 | 北京东土科技股份有限公司 | Method, system and device for obtaining topology connection relationship between devices |
| CN106161103A (en) * | 2016-08-18 | 2016-11-23 | 上海帝联信息科技股份有限公司 | Switch-layer topology construction method and device |
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| CN109687989B (en) | 2021-11-23 |
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