CN101465782B - Method for switching optimizing link of RRPP loop, system and network node - Google Patents
Method for switching optimizing link of RRPP loop, system and network node Download PDFInfo
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Abstract
The invention provides an RRPP(Rapid Ring Protection Protocol) ring optimized link switching method, a system and network nodes thereof; wherein the main node collects transmitting capacities of the links in the RRPP ring, determinates the link with the poorest transmitting capacity, and exchanges roles with one of the transit nodes connected with the link with the poorest transmitting capacity when the link with the poorest transmitting capacity is not the link connected with the main node; and the main node exchanges the roles of a main port and an auxiliary port when the link with the poorest transmitting capacity is the link connected with the main port of the main node. Therefore, when the poorest link appears in the RRPP ring, the system can realize automatic switching of the links, thus optimizing the data and message transmission path.
Description
Technical field
The present invention relates to the network communications technology, optimization link switch-over method, system and the network node of particularly a kind of quick ring protection agreement (RRPP, Rapid Ring Protection) ring.
Background technology
RRPP is the link layer protocol that is specifically designed to Ethernet ring, it can prevent the broadcast storm that data loopback causes when the ether ring is complete, can recover the communication link between each node on the looped network rapidly when arbitrary link disconnects on the ether ring, the ether ring that will enable RRPP usually is called RRPP ring.
Mainly comprise on the common RRPP ring: host node and transmission node, as shown in Figure 1, host node and transmission node are to have enabled the network equipment of RRPP and had the port that inserts this RRPP ring, transmission equipment only is used for the connection between the transmission node usually, carries out data message and the work of control message forwarding.Wherein, host node is to initiate the main running node that loop prevention was surveyed and carried out to loop, its master port sends health detection message every fixing duration on the net at RRPP ring, if secondary port does not receive health detection message in setting-up time, determine that then the link on the RRPP ring breaks down.When the link on RRPP ring does not have fault, the secondary port of host node (but remains the forwarding state of control on the VLAN being set to blocked state on the data virtual local area network (LAN) (VLAN), guarantee to receive health detection message), can't transmit data message, after detecting link on the RRPP ring and breaking down, the secondary port of host node is switched to forwarding state on data vlan, carry out the forwarding of data message, thereby the transmission node on the assurance RRPP ring can both receive data message, and send common address flush (Common_Flush_FDB) message by Primary port and secondary port, after each transmission node receives the Common_Flush_FDB message, refresh the mac address forwarding table of self.
In actual applications, RRPP ring exists under the situation of aggregated links, certain bar link of aggregated links breaks and causes the transmittability of link to change, make that this link is not optimum, perhaps, dilatation cause the transmittability of link to change because of need enlarging link bandwidth, the capital causes the link configuration on the RRPP ring inhomogeneous, for example, may cause link shown in Figure 11, the bandwidth of link 2 and link 4 is 4G, and the bandwidth of link 3 is 1G, but the transmission of the data message between transmission node 2 and the transmission node 3 only can be undertaken by the poorest link 3 of transmittability, and can not be by more excellent link promptly via link 2, link 1 and link 4 carry out., then must bring bigger trouble and dispose cost bigger to the keeper if by hand thereby the purpose that reaches link switchover is changed in the configuration of RRPP ring.
Summary of the invention
In view of this, the invention provides a kind of optimization link switch-over method, system and network node of RRPP ring, so that realize link switchover automatically simply, thus optimize data and message transmission.
A kind of optimization link switch-over method of RRPP ring, this method comprises:
The transmittability that A, host node are collected each link in the RRPP ring is determined the link that transmittability is the poorest;
B, when the poorest link of transmittability is not the link that host node connected, an exchange role in host node and the poorest transmission node that link was connected of transmittability; When the poorest link of transmittability is the link that master port connected of host node, the Primary port and secondary port of host node exchange role;
Wherein, the transmittability of each link comprises in the described host node collection RRPP ring: described host node is collected message by health detection message or the extra ability that defines that master port sends carrying capacity collection sign;
Each transmission node receives described carrying capacity and collects after the ability of the health detection message of sign or extra definition collects message, with self node identification and is connected link transmission capability information be carried at described health detection message or ability and collect in the message after the continuation forwarding;
After described host node receives described health detection message or ability collection message by secondary port, obtain the transmittability of link that each transmission node connects.
A kind of network node, this network node is used to constitute RRPP ring, and this network node comprises: ability collector unit, first judging unit, role's processing unit and ability provide the unit;
Described ability collector unit is used for when the role of this network node is host node, and the transmittability of collecting each link in the RRPP ring determine the link that transmittability is the poorest, and the link information that this transmittability is the poorest offers described first judging unit; Wherein, the transmittability of each link comprises in the described collection RRPP ring: carrying capacity is collected sign in the health detection message that this network node sends, the ability that perhaps sends extra definition is collected message, after receiving described health detection message or ability collection message, obtain the transmittability of link that each transmission node connects;
Described first judging unit is used for when the poorest link of described transmittability is not the link that this network node connected, and sends first to described role's processing unit and handles notice; When the poorest link of described transmittability is the link that master port connected of this network node, sends second to described role's processing unit and handle notice;
Described role's processing unit, be used to receive described first handle notice after, exchange the role with one in this network node and the poorest transmission node that link was connected of transmittability; After receiving the described second processing notice, with the Primary port and secondary port exchange role of this network node;
Described ability provides the unit, be used for when the role of this network node is transmission node, receive carrying capacity and collect after the ability of the health detection message of sign or extra definition collects message, with the node identification of this network node and is connected link transmission capability information be carried at described health detection message or ability collection message relay continues forwarding.
As can be seen from the above technical solutions, host node is determined the poorest link of transmittability by the transmittability of each link in the RRPP ring is collected among the present invention, when the poorest link of transmittability is not the link that host node connected, with an exchange role in the poorest transmission node that link was connected of transmittability, when the poorest link of transmittability is the link that master port connected of host node, Primary port and secondary port is exchanged the role.Thereby when the poorest link in RRPP ring, occurring, can realize link switchover automatically, optimize data and message transmission, trouble and the high cost of having avoided the manual configuration RRPP ring to come handoff links to bring.
Description of drawings
Fig. 1 is the composition schematic diagram of RRPP ring;
The method flow diagram that Fig. 2 provides for the embodiment of the invention;
The schematic diagram of each link transmission ability of a kind of RRPP ring that Fig. 3 provides for the embodiment of the invention;
Topological schematic diagram on the RRPP ring after the execution in step 203 that Fig. 4 provides for the embodiment of the invention and 204;
The schematic diagram of each link transmission ability of another kind of RRPP ring that Fig. 5 provides for the embodiment of the invention;
The structure chart of the network node that Fig. 6 provides for the embodiment of the invention.
Embodiment
In order to make the purpose, technical solutions and advantages of the present invention clearer, describe the present invention below in conjunction with the drawings and specific embodiments.
Method provided by the present invention mainly comprises: host node is collected the transmittability of each link in the RRPP ring, determines the link that transmittability is the poorest; When the poorest link of transmittability is not the link that host node connected, an exchange role in host node and the poorest transmission node that link was connected of transmittability; When the poorest link of transmittability is the link that master port connected of host node, the Primary port and secondary port of host node exchange role.
The main method flow chart that Fig. 2 provides for the embodiment of the invention, as shown in Figure 2, this method mainly may further comprise the steps:
Step 201: host node is collected the transmittability of each link in the RRPP ring, determines the link that transmittability is the poorest.
In this step, the process that host node is collected the transmittability of each link in the RRPP ring can be specially: when host node need be collected the transmittability of each link in the RRPP ring, can carrying capacity collect sign in the health detection message of transmission, this ability is collected sign and can be adopted a certain reserved field in the health detection message to carry.After each transmission node receives the health detection message that comprises ability collection sign, obtain the transmittability of link that receiving port connects, and this transmission capability information and the node identification information of self are carried at continuation forwarding in back in this health detection message.Wherein, transmission capability information and node identification information can be passed through type lengths values (structure Value) is carried in the reserved field for Type, Length.
Because port cost can reflect the transmittability of link that this port connects usually, therefore, when each transmission node obtains the transmittability of link that receiving port connects, can obtain by the current expense situation of this receiving port, the final transmittability that connects link can wait by bandwidth, overhead value and embody.Concrete port cost computational methods can adopt port cost computational methods or other the privately owned port cost computational methods in the 802.1t standard, do not repeat them here.
Collect the transmittability of each link except the above-mentioned mode of health detection message by expansion, the ability that can also be used as by the message of extra definition is collected message, and implementation and said process are basic identical.
After host node receives the health detection message of carrying each link transmission ability and node identification by secondary port, by relatively determining which bar link is the poorest link of transmittability.The if there is no the poorest link of transmittability, then host node is not carried out any operation.
Step 202: judge whether the poorest link of transmittability is connected link by host node, if not, execution in step 203, otherwise execution in step 205.
Step 203: an exchange role in host node and the poorest transmission node that link was connected of transmittability, the port that host node behind the exchange role connects the poorest link of transmittability is set to secondary port, and should on data vlan, switch to blocked state by the pair port, and begin to carry out the work of host node.
As shown in Figure 3, it is the 4G bandwidth that each link circuit condition that host node is collected is respectively link A-B, and link B-C is the 4G bandwidth, and link C-D is the 1G bandwidth, and link D-A is the 4G bandwidth, and wherein the poorest link of transmittability is link C-D.At this moment, host node will with an exchange role in the transmission node that link C-D is connected, promptly with node C or node D exchange role.
In exchange during the role, host node can with any exchange role wherein; Also can with the node switching role who sends link C-D transmittability, for example, if the transmittability of link C-D is node D to be determined and be carried in the health detection message together with self node identification, host node can exchange the role with node D by the corresponding relation in the health detection message; Also can exchange the role according to default criterion and node corresponding, for example, with the less exchange role of MAC Address among node C and the node D etc.
Host node and transmission node exchange role's negotiations process can specifically comprise: suppose host node determine will with node D exchange role, then host node carries in the health detection message that sends that role swap identifies, sign and the poorest link information of transmittability of node D.Wherein, the role swap sign also can be carried by the reserved field in the health detection message.After each transmission node receives the health detection message of carrying the role swap sign, if the node identification that wherein carries is not a self identification, then continue to transmit this health detection message, if the node identification that wherein carries is a self identification, then determine self need exchange the role with host node, and the link information the poorest according to the transmittability of carrying in this health detection message will self connect the port of this link as secondary port, another port should be set to blocked state by the pair port as master port on data vlan.Be the role that node D begins to take over host node, send health detection message, and send the mac address forwarding table that the Common-Flush-FDB message refreshes each transmission node on the RRPP ring by master port.
In addition, host node is except coming the notification transmission node switching role by the mode of above-mentioned expansion health detection message, can also come notification transmission node switching role by the role swap message of extra definition, can carry equally in this role swap message and take over node identification and the poorest link information of transmittability that becomes host node, implementation is identical with said process.
Step 204: the host node before the exchange role begins to carry out the work of transmission node behind the exchange role, and after receiving the health detection message that is not self to send, secondary port is switched to forwarding state, process ends on data vlan.
Host node originally is after role swap, begin to carry out the work of transmission node, but the original secondary port of Zu Saiing unblocking state immediately, but after receiving the health detection message of current host node transmission by the time, again secondary port is switched to forwarding state on data vlan, can prevent the broadcast storm that instant loop causes like this.
Topology on the RRPP ring after the execution in step 203 and 204 as shown in Figure 4.
Step 205: judge whether the poorest link of transmittability is the link that secondary port connected, if do not carry out any operation, process ends; If not, execution in step 206.
If link and this poorest link that the poorest link of transmittability is a host node to be connected are the links that secondary port connects, then need not to adjust, finish the testing of current period, wait for following one-period.
Step 206: the role of host node exchange Primary port and secondary port.
If the poorest link of transmittability is the link that master port connects, as shown in Figure 5, then host node need not and other transmission node exchange role, only need Primary port and secondary port exchange role with self, be about to master port and on data vlan, be set to blocked state, secondary port is switched to forwarding state on data vlan, and send health detection message and Common_Flush_FDB message by master port, and the operation of carrying out master port in the above-mentioned flow process.
In addition, in above-mentioned flow process, the ability that host node sends is collected message, and (it is periodically to send that the health detection message of carrying capacity collection sign or the extra ability that is provided with are collected message, for example once collects every 30 minutes.Based on the reason of topological stabilization time greater than link failure, if though the continuous concussion of link may cause RRPP ring not disconnect, but the transmittability of certain section link can be fluctuated, for fear of host node frequent carry out role's replacing, in the time of can carrying out periodicity transmitting capacity collection message, send N continuously, wherein N is at least 1, for example, send 10 continuously, only collect the poorest link of transmittability that messages collect when identical by these 10 abilities, just carry out role's replacing, do not change and wait for that the next cycle arrival carries out repeated collection otherwise do not carry out the role at host node.
If the link in the RRPP ring breaks down, secondary port then can't be received the health detection message that master port sends, and this method flow then can not carried out, so said method only is applicable to the situation that RRPP ring is complete.
In addition, the present invention is suitable equally when having the phase cross ring, if the poorest link of transmittability appears on the main ring, then the host node on the main ring carries out role swap, if the poorest link of transmittability appears in the subring, then the host node in the subring carries out role's replacing, if the poorest link of transmittability appears on the common link of main ring and subring, then host node on the main ring and the fringe node on the common link carry out role's replacing.
More than be the description that method provided by the present invention is carried out, below the network node on the RRPP ring provided by the present invention be described.The structure chart of the network node that Fig. 6 provides for the embodiment of the invention, as shown in Figure 6, this network node mainly comprises: ability collector unit 601, first judging unit 602 and role's processing unit 603.
Role's processing unit 603, be used to receive first handle notice after, exchange the role with one in this network node and the poorest transmission node that link was connected of transmittability; After receiving the second processing notice, with the Primary port and secondary port exchange role of this network node.
Wherein, in carrying out the transmittability collection process of each link, ability collector unit 601 carrying capacity in the health detection message that this network node sends is collected sign as the network node of host node, and the ability that perhaps sends extra definition is collected message; After receiving health detection message or ability collection message, obtain the transmittability of link that each transmission node connects.
Because each network node in the RRPP ring is except may being the role of host node, also may be the role of transmission node, at this moment, this network node can also comprise: ability provides unit 604, be used for when the role of this network node is transmission node, receive carrying capacity and collect after the ability of the health detection message of sign or extra definition collects message, with the node identification of this network node and is connected link transmission capability information be carried at health detection message or ability collection message relay continues forwarding.
In addition, link switchover can periodically be collected and carry out when being necessary to host node to each link ground transmittability, be that ability collector unit 601 periodically sends health detection message or the extra ability collection message that defines that carrying capacity is collected sign, and send the health detection message of N carrying capacity collection sign or the ability of extra definition in each cycle continuously and collect message, wherein N is the integer value more than 1; If it is identical that the ability of collecting the health detection message of sign or extra definition by N carrying capacity is collected the poorest link of the definite transmittability of message, then that transmittability is the poorest link information offers first judging unit 602, otherwise, finish the operation of current period.
In addition, ability collector unit 601 when the transmittability of determining each link is identical, finishes the operation of current period.
When host node and transmission node carry out role swap, be specifically as follows: role's processing unit 603 receive first handle notice after, with any the exchange role in the poorest transmission node that link was connected of transmittability; Perhaps, with the poorest transmission node that link was connected of transmittability in the less exchange role of MAC Address; Perhaps, the transmission node with the transmittability that reports the poorest link of transmittability in collection process exchanges the role.
Further, role's processing unit 603, can also be used at this network node when the role transforming of transmission node is host node, the port that connects the poorest link of transmittability is set to secondary port, another port is set to master port, and should on data vlan, switch to blocked state by the pair port, send common address flush Common_Flush_FDB message by master port.
In addition, role's processing unit 603 can also be used at this network node when host node is converted to transmission node, if after receiving the health detection message that current host node sends, secondary port is switched to forwarding state on data vlan.Thereby prevent the broadcast storm that instant loop causes.
Host node is after determining to exchange the role with transmission node, need notify this transmission node to carry out role swap, at this moment, role's processing unit 603 is before with one in this network node and the poorest transmission node that link was connected of transmittability exchange role, can also be used to send the health detection message of the poorest link information of the transmission node sign of carrying role swap sign, exchange role and transmittability, perhaps send the role swap message of the poorest link information of the transmission node sign of carrying the exchange role and transmittability.
Correspondingly, this network node can also comprise: second judging unit 605, be used for when the role of this network node is transmission node, the transmission node that carries role swap sign, exchange role identifies and the health detection message or the role swap message of the link information that transmittability is the poorest if receive, determine then whether the transmission node sign of wherein carrying is the sign of self, if not, then continue to transmit this health detection message or the role swap message that receives; If then notifying role's processing unit 603 is host node with the role transforming of this network node.
System provided by the present invention can comprise the network node of a plurality of said structures.
By above description as can be seen, method provided by the invention, system and network node possess following advantage:
1) host node is determined the poorest link of transmittability by the transmittability of each link in the RRPP ring is collected among the present invention, when the poorest link of transmittability is not the link that host node connected, with an exchange role in the poorest transmission node that link was connected of transmittability, when the poorest link of transmittability is the link that master port connected of host node, Primary port and secondary port is exchanged the role.Thereby when the poorest link in RRPP ring, occurring, can realize link switchover automatically, optimize data and message transmission, trouble and the high cost of having avoided the manual configuration RRPP ring to come handoff links to bring.
2) in the link switch-over method provided by the invention, can adopt the mode of periodically collecting each link transmission ability, thereby guarantee that link when new the poorest link occurring, can carry out link switchover timely, guarantee the data and message transmission optimum.And, in each cycle, can adopt and carry out N time continuously and collect, when the poorest link that obtains N collection is identical, carry out the operation of link switchover again, otherwise wait for that following one-period collects again, with this, the frequent role who avoids the link concussion to cause changes.
3) provide the health detection message of employing expansion to carry out the collection of each link transmission ability in the embodiment of the invention, and the notification transmission node carries out role's replacing, agreement to original system is changed less, farthest support the agreement of existing system, and needn't require the transmission node in the system to support other protocol characteristic.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (16)
1. the optimization link switch-over method of a quick ring protection agreement RRPP ring is characterized in that, this method comprises:
The transmittability that A, host node are collected each link in the RRPP ring is determined the link that transmittability is the poorest;
B, when the poorest link of transmittability is not the link that host node connected, an exchange role in host node and the poorest transmission node that link was connected of transmittability; When the poorest link of transmittability is the link that master port connected of host node, the Primary port and secondary port of host node exchange role;
Wherein, the transmittability of each link comprises in the described host node collection RRPP ring: described host node is collected message by health detection message or the extra ability that defines that master port sends carrying capacity collection sign;
Each transmission node receives described carrying capacity and collects after the ability of the health detection message of sign or extra definition collects message, with self node identification and is connected link transmission capability information be carried at described health detection message or ability and collect in the message after the continuation forwarding;
After described host node receives described health detection message or ability collection message by secondary port, obtain the transmittability of link that each transmission node connects.
2. method according to claim 1 is characterized in that, described health detection message is carried described ability by the field of reserving and collected sign, carries described node identification and transmission capability information by the field of reserving with the form of type lengths values TLV.
3. method according to claim 1 and 2, it is characterized in that, the described carrying capacity of described host node cycle transmission is collected the health detection message of sign or the ability of extra definition is collected message, and send the health detection message of N carrying capacity collection sign or the ability of extra definition in each cycle continuously and collect message, wherein N is the integer value more than 1;
The poorest link is identical if the ability of collecting the health detection message of sign or extra definition by described N carrying capacity is collected transmittability that message determines, then continues to carry out described step B, otherwise, finish the flow process of current period.
4. method according to claim 1 is characterized in that, this method also comprises: if described host node determines that the transmittability of each link is identical, then do not carry out any role swap.
5. method according to claim 1, it is characterized in that an exchange role in host node and the poorest transmission node that link was connected of transmittability specifically comprises: any in host node and the poorest transmission node that link was connected of transmittability exchanges role; Perhaps,
The less exchange role of MAC Address in host node and the poorest transmission node that link was connected of transmittability; Perhaps,
Report the transmission node exchange role of the transmittability of the poorest link of described transmittability in the process of host node and the transmittability of each link in collecting RRPP ring.
6. method according to claim 1, it is characterized in that, after the exchange role in host node and the poorest transmission node that link was connected of transmittability, the port that host node after the exchange role connects the poorest link of described transmittability is set to secondary port, another port is set to master port, and should on data vlan, switch to blocked state by the pair port, send common address flush Common_Flush_FDB message by master port.
7. method according to claim 1, it is characterized in that, after the exchange role in host node and the poorest transmission node that link was connected of transmittability, host node before the exchange role is taken over the work of transmission node, and after the health detection message of the transmission of the host node after receiving the exchange role, secondary port is switched to forwarding state on data vlan.
8. according to claim 1,5,6 or 7 described methods, it is characterized in that, also comprise before the exchange role in described host node and the poorest transmission node that link was connected of transmittability: described host node sends the health detection message of the poorest link information of the transmission node sign of carrying role swap sign, exchange role and transmittability, perhaps sends the role swap message of the poorest link information of the transmission node sign of carrying the exchange role and transmittability;
After each transmission node receives the health detection message or described role swap message of the poorest link information of described transmission node sign of carrying role swap sign, exchange role and transmittability, determine whether the transmission node sign of wherein carrying is the sign of self, if not, then continue to transmit this health detection message or the role swap message that receives; If then be converted to the role of host node.
9. network node, this network node is used to constitute RRPP ring, it is characterized in that, and this network node comprises: ability collector unit, first judging unit, role's processing unit and ability provide the unit;
Described ability collector unit is used for when the role of this network node is host node, and the transmittability of collecting each link in the RRPP ring determine the link that transmittability is the poorest, and the link information that this transmittability is the poorest offers described first judging unit; Wherein, the transmittability of each link comprises in the described collection RRPP ring: carrying capacity is collected sign in the health detection message that this network node sends, the ability that perhaps sends extra definition is collected message, after receiving described health detection message or ability collection message, obtain the transmittability of link that each transmission node connects;
Described first judging unit is used for when the poorest link of described transmittability is not the link that this network node connected, and sends first to described role's processing unit and handles notice; When the poorest link of described transmittability is the link that master port connected of this network node, sends second to described role's processing unit and handle notice;
Described role's processing unit, be used to receive described first handle notice after, exchange the role with one in this network node and the poorest transmission node that link was connected of transmittability; After receiving the described second processing notice, with the Primary port and secondary port exchange role of this network node;
Described ability provides the unit, be used for when the role of this network node is transmission node, receive carrying capacity and collect after the ability of the health detection message of sign or extra definition collects message, with the node identification of this network node and is connected link transmission capability information be carried at described health detection message or ability collection message relay continues forwarding.
10. network node according to claim 9, it is characterized in that, described ability collector unit periodically sends described carrying capacity and collects the health detection message of sign or the ability collection message of extra definition, and send the health detection message of N carrying capacity collection sign or the ability of extra definition in each cycle continuously and collect message, wherein N is the integer value more than 1; The poorest link is identical if the ability of collecting the health detection message of sign or extra definition by described N carrying capacity is collected transmittability that message determines, then the poorest link information of described transmittability is offered described first judging unit, otherwise, finish the operation of current period.
11. network node according to claim 9 is characterized in that, described ability collector unit when the transmittability of determining each link is identical, finishes the operation of current period.
12. network node according to claim 9 is characterized in that, after described role's processing unit receives the described first processing notice, with any the exchange role in the poorest transmission node that link was connected of transmittability; Perhaps, with the poorest transmission node that link was connected of transmittability in the less exchange role of MAC Address; Perhaps, with in the process of the transmittability of each link in collecting each RRPP ring report the transmission node exchange role of the transmittability of the poorest link of described transmittability.
13. network node according to claim 9, it is characterized in that, described role's processing unit, also be used at this network node when the role transforming of transmission node is host node, the port that connects the poorest link of described transmittability is set to secondary port, another port is set to master port, and should switch to blocked state by the pair port on data vlan, sends common address flush Common_Flush_FDB message by master port.
14. network node according to claim 9, it is characterized in that described role's processing unit also is used at this network node when host node is converted to transmission node, if after receiving the health detection message of current host node transmission, secondary port is switched to forwarding state on data vlan.
15. according to the described network node of the arbitrary claim of claim 9 to 14, it is characterized in that, described role's processing unit is before with one in this network node and the poorest transmission node that link was connected of transmittability exchange role, also be used to send the health detection message of the poorest link information of the transmission node sign of carrying role swap sign, exchange role and transmittability, perhaps send the role swap message of the poorest link information of the transmission node sign of carrying the exchange role and transmittability;
This network node also comprises: second judging unit, be used for when the role of this network node is transmission node, the transmission node that carries role swap sign, exchange role identifies and the health detection message or the described role swap message of the link information that transmittability is the poorest if receive, determine then whether the transmission node sign of wherein carrying is the sign of self, if not, then continue to transmit this health detection message or the role swap message that receives; If then notifying described role's processing unit is host node with the role transforming of this network node.
16. the optimization link switching system of a RRPP ring is characterized in that, this system comprises: a plurality of network nodes as claimed in claim 9.
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| CN102209018B (en) * | 2010-03-30 | 2013-11-27 | 杭州华三通信技术有限公司 | Live service scheduling method for rapid ring protection protocol ring and node |
| CN103581058B (en) * | 2012-07-31 | 2017-02-15 | 杭州华三通信技术有限公司 | Message forwarding method and device in data central network |
| CN103746912B (en) * | 2014-01-03 | 2017-04-12 | 杭州华三通信技术有限公司 | Data message transmission method and equipment based on subring link |
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| CN104486220B (en) * | 2014-12-11 | 2017-10-03 | 新华三技术有限公司 | A kind of Ethernet ring protection switching switching ring upper pathway optimization method and device |
| CN106357832B (en) * | 2016-08-24 | 2019-10-18 | 浙江宇视科技有限公司 | Looped network address list item update mechanism method and device |
| CN108322375B (en) * | 2017-12-27 | 2021-03-12 | 瑞斯康达科技发展股份有限公司 | Ethernet ring protection switching method, node and system |
| EP4152702A4 (en) * | 2020-06-08 | 2023-11-15 | Huawei Technologies Co., Ltd. | Control message processing method, apparatus and device in collective communication system, and system |
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| CN101022390A (en) * | 2007-03-21 | 2007-08-22 | 华为技术有限公司 | Method, system and equipment for protecting double-return switch-in RRPP loop network |
| CN101094190A (en) * | 2007-08-20 | 2007-12-26 | 中兴通讯股份有限公司 | Method for transmitting protective controlled message in Ethernet ring net |
| CN101304359A (en) * | 2008-05-28 | 2008-11-12 | 杭州华三通信技术有限公司 | Method and apparatus for RRPP looped network link recuperation |
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