CN105162733A - Method and device for determining edge interface - Google Patents
Method and device for determining edge interface Download PDFInfo
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- CN105162733A CN105162733A CN201510621356.1A CN201510621356A CN105162733A CN 105162733 A CN105162733 A CN 105162733A CN 201510621356 A CN201510621356 A CN 201510621356A CN 105162733 A CN105162733 A CN 105162733A
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- DWSYCUKCNSVBRA-UHFFFAOYSA-N 4-(5-methylsulfonyltetrazol-1-yl)phenol Chemical compound CS(=O)(=O)C1=NN=NN1C1=CC=C(C=C1)O DWSYCUKCNSVBRA-UHFFFAOYSA-N 0.000 claims abstract description 44
- 101710167643 Serine/threonine protein phosphatase PstP Proteins 0.000 claims abstract description 44
- 238000012545 processing Methods 0.000 claims description 15
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Abstract
The invention provides a method and a device for determining an edge interface. The method and the device are applied to a switch in which an STP, an RSTP or an MSTP is run, wherein the method comprises: when the port of the switch is initialized, setting a local port as a specified port and sending a specific layer 2 message to the outside; and determining the local port as an edge port if the local port does not receive an STP, RSTP or MSTP message sent by an opposite end within set time. The method is capable of identifying the edge port in an STP, RSTP or MSTP mode, and therefore, network calculation can be simplified and the efficiency is improved.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of method and apparatus determining edge interface.
Background technology
During switchboard unit network, in multiple ports of a switch, some ports are connected with another switch, specific two layer message is had mutual between them, as Multiple Spanning Tree Protocol (MSTP, MultipleSpanningTreeProtocol), link aggregate control protocol (LACP, LinkAggregationControlProtocol) etc.; Have plenty of and be connected with non-switch, as computer, printer etc., do not need above-mentioned two layer message mutual between them, this switch ports themselves is edge port (edgeport), namely edgeport is not directly connected with any switch, the port that the network that also no-go end mouth connects is connected with any switch indirectly.
If switch can identify edge port, just can calculate by simplified network, thus raising efficiency, such as, in MSTP calculates, edgeport directly can enter forwarding state.But present case is, some producers do not support this function, and some producers only part support this function, and it does not support in Spanning-Tree Protocol (STP, SpanningTreeProtocol) situation, thus affects the efficiency of network calculations.
Summary of the invention
In view of this, the invention provides a kind of method and apparatus determining edge interface, can calculate by simplified network, raising efficiency.
The invention provides a kind of method determining edge interface, be applied on the switch of operation Spanning-Tree Protocol STP, RSTP RSTP or Multiple Spanning Tree Protocol MSTP, the method comprises: when the port of switch carries out initialization, and setting the port is designated port and externally sends specific two layer message; If the port does not receive STP, RSTP or the MSTP BPDUs of opposite end transmission in setting-up time, then determine that the port is edge port edgeport.
Further, the specific two layer message of described external transmission, is specially: determine the agreement that switch runs; If switch runs RSTP and MSTP, when the port of switch carries out initialization, setting the port is designated port and externally sends proposal message; If switch runs STP, when the port of switch carries out initialization, setting the port is designated port and externally sends STP BPDUs.
Further, described external transmission STP BPDUs, is specially: pre-set the quantity sending STP BPDUs and the interval time sending STP BPDUs; According to interval time, at least externally send the STP BPDUs of magnitude setting.
Further, described method also comprises: increase counter in a switch and count the quantity sending STP BPDUs.
Further, described setting-up time is 3 seconds; The quantity arranged is 2; The interval time arranged is 2 seconds.
Present invention also offers a kind of device for determining edge interface, be applied on the switch of operation Spanning-Tree Protocol STP, RSTP RSTP or Multiple Spanning Tree Protocol MSTP, this device comprises: the first processing module, for when the port of switch carries out initialization, setting the port is designated port and externally sends specific two layer message; Second processing module, if STP, the RSTP or the MSTP BPDUs that do not receive opposite end transmission for the port in setting-up time, then determines that the port is edge port edgeport.
Further, described first processing module, specifically for: determine the agreement that switch runs; If switch runs RSTP and MSTP, when the port of switch carries out initialization, setting the port is designated port and externally sends proposal message; If switch runs STP, when the port of switch carries out initialization, setting the port is designated port and externally sends STP BPDUs.
Further, described first processing module externally sends STP BPDUs, is specially: pre-set the quantity sending STP BPDUs and the interval time sending STP BPDUs; According to interval time, at least externally send the STP BPDUs of magnitude setting.
Further, described second processing module, specifically for: judge whether to receive in setting-up time STP, RSTP or MSTP BPDUs that opposite end is sent to; If received, then the port is non-edgeport; If do not received, then the port is non-edgeport.
Further, described device also comprises: counter, for counting the quantity sending STP BPDUs.
Compared to the prior art, beneficial effect of the present invention is: switch can identify edgeport under STP, RSTP or MSTP pattern, and edgeport directly can enter forwarding state, thus simplified network calculates, raising efficiency.
Accompanying drawing explanation
Fig. 1 is the networking schematic diagram of the system for determining edge interface disclosed in this invention.
Fig. 2 is the schematic flow sheet determining the method for edge interface disclosed in this invention.
Fig. 3 is the detailed process schematic diagram of the method for determination edge interface based on Fig. 2.
Fig. 4 is the structural representation of the device for determining edge interface disclosed in this invention.
Embodiment
Describe the present invention below with reference to embodiment shown in the drawings; but these execution modes do not limit the present invention, the structure that those of ordinary skill in the art makes according to these execution modes, method or conversion functionally are all included in protection scope of the present invention.
Spanning-Tree Protocol (STP, SpanningTreeProtocol) is a kind of two layer-management agreements, and it eliminates double-layer loop by the redundant link in optionally clogging networks, also possesses the function of link backup simultaneously.Spanning-Tree Protocol is constantly updated along with the development of network, from initial STP to RSTP (RSTP, RapidSpanningTreeProtocol), then to Multiple Spanning Tree Protocol (MSTP, MultipleSpanningTreeProtocol).
The main distinction between STP, RSTP and MSTP is: STP, can not fast transferring, even at point-to-point link or edge port, also must wait for the time delay of the forwarddelay of 2 times, network could be restrained; RSTP, define according to IEEEStd802.1w, by P (proposal)/A (agreement) machine-processed Fast Convergent, but a spanning tree shared by all bridges in local area network (LAN), redundant link can not be blocked by VLAN (VLAN, VirtualLocalAreaNetwork); MSTP, allows the flow of different VLAN along the distribution of respective path, thus provides better load balancing mechanism for redundant link.
Fig. 1 is for determining the system group network figure of edge interface in the present invention one specific embodiment.With reference to Fig. 1, hypothesis has three switches within the system, and in multiple ports of every platform switch, ports having is connected with another switch, has specific two layer message mutual between them; Every platform switch all comprises the edgeport connected with non-switch, and such as these three switches are respectively by oneself edgeport connection server, PC and printer.
Fig. 2 is the schematic flow sheet determining the method for edge interface disclosed in this invention.With reference to Fig. 2, the method determining edge interface of the present invention, be applied on the switch of operation STP, RSTP or MSTP, the method comprises:
Step 201, when the port of switch carries out initialization, setting the port is designated port and externally sends specific two layer message;
Step 202, if the port does not receive STP, RSTP or the MSTP BPDUs of opposite end transmission in setting-up time, then determines that the port is edgeport.
Fig. 3 is the detailed process schematic diagram of the method for determination edge interface based on Fig. 2.With reference to Fig. 3, the method comprises:
Step 301, determines the agreement that switch runs.
In this step, this agreement comprises STP, RSTP and MSTP.
Incompatible RSTP and MSTP of STP, namely runs switch nonrecognition RSTP and the MSTP BPDUs of STP, if receive RSTP or MSTP BPDUs directly abandons usually; The compatible STP of RSTP and MSTP, the switch namely running RSTP and MSTP receives STP BPDUs, can run in STP mode.
Step 302, if switch runs RSTP and MSTP, when the port of switch carries out initialization, setting the port is designated port and externally sends proposal message.
Step 303, if switch runs STP, when the port of switch carries out initialization, setting the port is designated port and externally sends STP BPDUs.
In this step, due to the compatible STP of RSTP and MSTP, as long as therefore any one in STP, RSTP and MSTP is supported in opposite end, all can enter STP pattern, all likely send STP BPDUs.If but the STP BPDUs priority that the port sends is higher, then STP BPDUs just not necessarily can be sent out in opposite end, and causing judging whether is edgeport.Therefore, the priority ensureing the STP BPDUs that the port sends is needed.
Particularly, after the port enters STP, the quantity sending STP BPDUs and the interval time sending STP BPDUs are set, counter can be increased in a switch the quantity sending STP BPDUs is counted.No matter which kind of situation, all at least send the STP BPDUs of magnitude setting.When the STP BPDUs priority sent is lower, opposite end is direct discard processing usually, and therefore impact is little; Under MSTP scene, the probability of message dropping is lower, therefore can be set at least send 2 STP BPDUs, and arrange the interval time of transmission STP BPDUs in addition for being no more than 2 seconds, follow-up STP BPDUs still sends by former protocol specification.
Step 304, judge whether to receive in setting-up time STP, RSTP or MSTP BPDUs that opposite end is sent to, if so, then the port is non-edgeport; If not, then the port is edgeport.
In this step, as long as support the switch of STP type protocol, just send the STP type message of magnitude setting to I haven't seen you for ages, and non-switch can not send the message of any STP type, wherein namely STP type message refers to any one in STP, RSTP or MSTP type.
So, at setting-up time, such as 3S, inside receive STP, RSTP or MSTP BPDUs that opposite end is sent to, then the port is non-edgeport; If do not receive STP, RSTP or MSTP BPDUs that opposite end is sent in setting-up time, then the port is edgeport.
As shown in Figure 4, present invention also offers a kind of device for determining edge interface, be applied on the switch of operation STP, RSTP or MSTP, this device comprises:
First processing module 401, for when the port of switch carries out initialization, setting the port is designated port and externally sends specific two layer message;
Second processing module 402, if do not receive for the port STP, RSTP or MSTP BPDUs that opposite end is sent in setting-up time, determines that the port is edgeport.
Further, the first processing module specifically for: determine the agreement that switch runs; If switch runs RSTP and MSTP, when the port of switch carries out initialization, setting the port is designated port and externally sends proposal message; If switch runs STP, when the port of switch carries out initialization, setting the port is designated port and externally sends STP BPDUs.
Further, the second processing module specifically for: judge whether to receive in setting-up time STP, RSTP or MSTP BPDUs that opposite end is sent to; If received, then the port is non-edgeport; If do not received, then the port is edgeport.
Further, this device also comprises: counter, for counting the quantity sending STP BPDUs.
The present invention for determining the ins and outs of the device of edge interface and aforesaidly determining that edge interface is similar, therefore is not repeated herein.
In the present invention, switch can identify edgeport under STP, RSTP or MSTP pattern, and edgeport directly can enter forwarding state, thus simplified network calculates, raising efficiency.
Although the present invention discloses as above with preferred embodiment, the present invention is not defined in this.Any those skilled in the art, without departing from the spirit and scope of the present invention, all can make various changes or modifications, and therefore protection scope of the present invention should be as the criterion with claim limited range.To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.
Claims (10)
1. determine a method for edge interface, it is characterized in that, be applied on the switch of operation Spanning-Tree Protocol STP, RSTP RSTP or Multiple Spanning Tree Protocol MSTP, the method comprises:
When the port of switch carries out initialization, setting the port is designated port and externally sends specific two layer message;
If the port does not receive STP, RSTP or the MSTP BPDUs of opposite end transmission in setting-up time, then determine that the port is edge port edgeport.
2. determine the method for edge interface as claimed in claim 1, it is characterized in that, the specific two layer message of described external transmission, is specially:
Determine the agreement that switch runs;
If switch runs RSTP and MSTP, when the port of switch carries out initialization, setting the port is designated port and externally sends proposal message;
If switch runs STP, when the port of switch carries out initialization, setting the port is designated port and externally sends STP BPDUs.
3. determine the method for edge interface as claimed in claim 2, it is characterized in that, described external transmission STP BPDUs, is specially:
Pre-set the quantity sending STP BPDUs and the interval time sending STP BPDUs;
According to interval time, at least externally send the STP BPDUs of magnitude setting.
4. determine the method for edge interface as claimed in claim 3, it is characterized in that, described method also comprises: increase counter in a switch and count the quantity sending STP BPDUs.
5. determine the method for edge interface as claimed in claim 3, it is characterized in that, described setting-up time is 3 seconds; The quantity arranged is 2; The interval time arranged is 2 seconds.
6. for determining a device for edge interface, it is characterized in that, be applied on the switch of operation Spanning-Tree Protocol STP, RSTP RSTP or Multiple Spanning Tree Protocol MSTP, this device comprises:
First processing module, for when the port of switch carries out initialization, setting the port is designated port and externally sends specific two layer message;
Second processing module, if STP, the RSTP or the MSTP BPDUs that do not receive opposite end transmission for the port in setting-up time, then determines that the port is edge port edgeport.
7., as claimed in claim 6 for determining the device of edge interface, it is characterized in that, described first processing module, specifically for: determine the agreement that switch runs; If switch runs RSTP and MSTP, when the port of switch carries out initialization, setting the port is designated port and externally sends proposal message; If switch runs STP, when the port of switch carries out initialization, setting the port is designated port and externally sends STP BPDUs.
8. as claimed in claim 7 for determining the device of edge interface, it is characterized in that, described first processing module externally sends STP BPDUs, is specially: pre-set the quantity sending STP BPDUs and the interval time sending STP BPDUs; According to interval time, at least externally send the STP BPDUs of magnitude setting.
9. as claimed in claim 6 for determining the device of edge interface, it is characterized in that, described second processing module, specifically for: judge whether to receive in setting-up time STP, RSTP or MSTP BPDUs that opposite end is sent to; If received, then the port is non-edgeport; If do not received, then the port is edgeport.
10. as claimed in claim 8 for determining the device of edge interface, it is characterized in that, described device also comprises: counter, for counting the quantity sending STP BPDUs.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510621356.1A CN105162733B (en) | 2015-09-25 | 2015-09-25 | A kind of method and apparatus for determining edge interface |
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| CN201510621356.1A CN105162733B (en) | 2015-09-25 | 2015-09-25 | A kind of method and apparatus for determining edge interface |
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| CN105162733A true CN105162733A (en) | 2015-12-16 |
| CN105162733B CN105162733B (en) | 2018-04-06 |
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| CN108243027A (en) * | 2016-12-23 | 2018-07-03 | 大唐移动通信设备有限公司 | A kind of port initialization method and device |
| CN113411220A (en) * | 2021-06-30 | 2021-09-17 | 新华三技术有限公司 | Method and device for configuring spanning tree protocol edge port |
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| CN113411220A (en) * | 2021-06-30 | 2021-09-17 | 新华三技术有限公司 | Method and device for configuring spanning tree protocol edge port |
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| CN105162733B (en) | 2018-04-06 |
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