CN107171840A - A kind of pretection switch method and apparatus based on ERPS agreements - Google Patents
A kind of pretection switch method and apparatus based on ERPS agreements Download PDFInfo
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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
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
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- 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
- H04L45/22—Alternate routing
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- 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
- H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
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Abstract
The application provides a kind of pretection switch method and apparatus based on ERPS agreements, and methods described mainly includes：When the Target Link recovers normal, NR message is sent from node to host node, and blocked state will be set to the port of the Target Link side, and start on this node first timer；Host node is received after NR message, and secondary port is set into blocked state, and starts the second timer pre-set on this node；Wherein, the first timer is identical with the timing length of the second timer；When the second timer is overtime, secondary port is set to blocked state by the host node, and sends NRRB message simultaneously, described to send NR message again from node when the second timer is overtime；After the host node receives NR message again, NRRB message is sent simultaneously again immediately, it is finally described to send the NRRB message received again to the peer node of the Target Link side from node.
Description
Technical field
The application is related to network communication technology field, more particularly to a kind of pretection switch method and dress based on ERPS agreements
Put.
Background technology
In same LAN, exist by several group of switches into single Ethernet ring, each interchanger be one
Individual node.Single Ethernet ring includes a host node and some from node, and each node has two be connected with adjacent node
Described two ports on individual port, wherein host node are divided into Primary port and secondary port, from described two ports on node not
Divide into major-minor port.When network is normally run, the master port on host node is forwarding state, and the secondary port is resistance
Plug-like state, is forwarding state from described two ports on node.When being broken down in looped network in any link, host node
Two nodes where the secondary port can be set to forwarding state, and faulty link can be by faulty link side
Port is set to blocked state.
When faulty link recovers normal condition, two nodes where former faulty link can send NR to host node and disappear
Breath；Wherein, the NR message is used to notify host node and other each message from node link fault recovery.When host node from
When major and minor port receives NR messages, default timer on triggering host node, wherein, when the timer has preset timing
Between.If timer expiry, secondary port can be set to blocked state by host node, it is possible to be simultaneously emitted by from major and minor port
NRRB message；Wherein, the NRRB message is used to notify each message from node failure link-recovery forwarding state.When cause barrier
When two nodes where link receive NRRB message, the port of former faulty link side can be set to forwarding state.
However, in the prior art, it is possible that any node is in main section in two nodes where former faulty link
Point, which is sent, can not receive the situation of the NRRB message after NRRB message.When there is such situation, in the prior art,
The node for not receiving NRRB message needs to wait the faulty link pre-set on the node to recover determining for forwarding state
When device it is overtime when, just the port of former faulty link side can be set to forwarding state.
Conventionally, as within this period for the timer expiry for waiting faulty link recovery forwarding state,
The data message that the secondary port of host node is forwarded the need for being in blocked state, all process host nodes can only be forwarded from master port
Go out, but during this period of time, it is necessary to which the data message forwarded by former faulty link can not be by former faulty link
Continue to forward, so that the increase of data message loss quantity can be caused.
The content of the invention
In view of this, the application provides a kind of pretection switch method and apparatus based on ERPS agreements, applied to Ethernet
The host node of ring and any from node, the Ethernet ring is single Ethernet ring in same LAN, is provided using the application
Technical scheme, can Ethernet ring faulty link recover when, accelerate Ethernet convergence rate, so as to reduce datagram
The loss of text.
Specifically, the application is achieved by the following technical solution：
A kind of pretection switch method based on ERPS agreements, applied to any from node in Ethernet ring, ether
Net ring is single Ethernet ring in same LAN, and the Ethernet ring includes a host node with several from node, its
Described in host node both sides port in any one side ports be arranged in the Ethernet ring link normal condition resistance
Plug-like state, including：
When the Target Link between detecting the neighbor node of this node and any side breaks down, pass through opposite side
Normal link to host node, and other send SF message from node；
When the Target Link recovers normal, NR message is sent to host node by the normal link of opposite side, and will
The first port of the Target Link side is set to blocked state, and starts first timer on this node, so that main
Node starts second timer after receiving the NR message on the host node；Wherein, the first timer with it is described
The timing length of second timer is identical；
Host node is received when the second timer is overtime, corresponds to the target by what both sides port was sent simultaneously
The NRRB message of link, and the first port of the Target Link side is reverted into forwarding state；And,
After first timer time-out, NR message is sent to host node by the normal link of opposite side again, and
When receiving the NRRB message being simultaneously emitted by immediately by both sides port after the host node receives the NR message again,
The NRRB message is sent to the second port of the peer node to the Target Link side by the first port, to touch
Sending out second port described reverts to forwarding state.
A kind of pretection switch method based on ERPS agreements, applied to the host node in Ethernet ring, the Ethernet ring
For single Ethernet ring of same LAN, the Ethernet ring includes a host node with several from node, wherein described
Any one side ports are arranged to blocked state in the Ethernet ring link normal condition in two ports of host node, bag
Include：
When any Target Link between the neighbor node of node and any side breaks down, receive described from section
The SF message that point is sent by the normal link of opposite side；
When the Target Link recovers normal, receive the NR sent from node by the normal link of opposite side and disappear
Breath, and start second timer on this node after the NR message is received；Wherein, the second timer with it is described from
The timing length that node is sent after NR message in the first timer started from node is identical；
After the second timer is overtime, the NRRB sent simultaneously by both sides port corresponding to the Target Link disappears
Breath, so that described revert to forwarding state from node by the first port of the side of the Target Link；And,
Described in receiving from node after first timer time-out, the NR sent again by the normal link of opposite side
Message, and NRRB message is sent by both sides port simultaneously again immediately after this node receives the NR message, so that institute
State to receive again from node after the NRRB message and send the NRRB message to the Target Link side to end segment
The second port of point, forwarding state is reverted to trigger the second port.
A kind of pretection switch device based on ERPS agreements, applied to any from node in Ethernet ring, ether
Net ring is single Ethernet ring in same LAN, and the Ethernet ring includes a host node with several from node, its
Described in host node both sides port in any one side ports be arranged in the Ethernet ring link normal condition resistance
Plug-like state, including：
SF message sending units, for the Target Link hair between the neighbor node of this node and any side is detected
During raw failure, by the normal link of opposite side to host node, and other SF message is sent from node；
NR message sending units, for when the Target Link recovers normal, by the normal link of opposite side to master
Node sends NR message, and the first port of the Target Link side is set into blocked state, and is opened on this node
Dynamic first timer, so that host node starts second timer after receiving the NR message on the host node；Wherein, institute
State first timer identical with the timing length of the second timer；
NRRB message reception units, it is same by both sides port for receiving host node when the second timer is overtime
When the NRRB message corresponding to the Target Link that sends, and the first port of the Target Link side is reverted into forwarding
State；And,
NRRB message sending units, for after first timer time-out, by the normal link of opposite side to master
Node sends NR message again, and is receiving after the host node receives the NR message again immediately by both sides port
During the NRRB message being simultaneously emitted by, the NRRB message is sent to pair of the Target Link side by the first port
The second port of end node, forwarding state is reverted to trigger the second port.
A kind of pretection switch device based on ERPS agreements, applied to the host node in Ethernet ring, the Ethernet ring
For single Ethernet ring of same LAN, the Ethernet ring includes a host node with several from node, wherein described
Any one side ports are arranged to blocked state in the Ethernet ring link normal condition in two ports of host node, bag
Include：
SF message reception units, for occurring when any Target Link between the neighbor node of node and any side
During failure, the SF message sent from node by the normal link of opposite side is received；
NR message reception units, for when the Target Link recovers normal, opposite side to be passed through from node described in reception
The NR message that sends of normal link, and start second timer on this node after the NR message is received；Wherein, institute
State second timer and the timing length sent from node after NR message in the first timer started from node
It is identical；
NRRB message sending units, for after the second timer is overtime, correspondence to be sent simultaneously by both sides port
In the NRRB message of the Target Link, so that described revert to the first port of the side of the Target Link from node turns
Hair-like state；And,
NR message reception units, for receive it is described from node after first timer time-out, pass through opposite side
The NR message that normal link is sent again；
NRRB message sending units, for same again by both sides port immediately after this node receives the NR message
When send NRRB message so that described received again from node after the NRRB message sends the NRRB message to described
The second port of the peer node of Target Link side, forwarding state is reverted to trigger the second port.
Because in this application, two where the Target Link are no longer detected that the second timer surpasses from node
When after whether receive the NRRB message that the host node is sent, but directly send NR message again to the host node.By
There is a node to receive the host node in two nodes where defining the Target Link in this application
The NRRB message sent for the first time, therefore, it can to receive the node for the NRRB message that the host node is sent for the first time, can be with
The NRRB message received again is sent to peer node by the Target Link.The peer node receives described
After NRRB message, the port of the Target Link side can be reverted into forwarding state immediately.It therefore, it can save existing skill
Waited in art where the Target Link from node, it is determined that the link-recovery started after the NRRB information drop-outs forwards shape
This period of the timer expiry of state.It is thus possible to accelerate the convergence rate after Ethernet ring fault recovery, datagram is reduced
The loss of text.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram for single Ethernet ring that the application is illustrated；
Fig. 2 is that a kind of single Ethernet ring shown in the application the schematic diagram of link failure occurs；
Fig. 3 is a kind of schematic diagram of single Ethernet ring link failure recovery shown in the application；
Fig. 4 is a kind of schematic diagram of single Ethernet ring host node recovery normal condition shown in the application；
Fig. 5 is a kind of pretection switch method flow diagram based on ERPS agreements that the embodiment of the present application is illustrated；
Fig. 6 is a kind of Ethernet in first timer and overtime second timer that the embodiment of the present application is illustrated
The schematic diagram of ring；
Fig. 7 is the signal of Ethernet ring when the host node that the embodiment of the present application is illustrated sends NRRB message again
Figure；
Fig. 8 is a kind of a kind of hardware structure diagram of the pretection switch device place based on ERPS agreements of the application from node；
Fig. 9 is a kind of pretection switch device based on ERPS agreements that the embodiment of the present application is illustrated；
Figure 10 is a kind of hardware structure diagram of host node where a kind of pretection switch device based on ERPS agreements of the application；
Figure 11 is another pretection switch device based on ERPS agreements that the embodiment of the present application is illustrated.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects be described in detail in claims, the application.
It is the purpose only merely for description specific embodiment in term used in this application, and is not intended to be limiting the application.
" one kind ", " described " and "the" of singulative used in the application and appended claims are also intended to including majority
Form, unless context clearly shows that other implications.It is also understood that term "and/or" used herein refers to and wrapped
It may be combined containing one or more associated any or all of project listed.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the application
A little information should not necessarily be limited by these terms.These terms are only used for same type of information being distinguished from each other out.For example, not departing from
In the case of the application scope, the first information can also be referred to as the second information, similarly, and the second information can also be referred to as
One information.Depending on linguistic context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determining ".
Fig. 1 is referred to, Fig. 1 is a kind of schematic diagram for single Ethernet ring that the application is illustrated.
Wherein, single Ethernet ring by several group of switches into, each interchanger be a node.Single Ethernet
Ring includes a host node with several from node, and each node has two ports, described two ends wherein on host node
Mouth is divided into Primary port and secondary port, is not differentiated between from described two ports on node as major and minor port.
For example, single Ethernet ring as shown in Figure 1 includes 6 interchangers, respectively SWA, SWB, SWC, SWD, SWE,
SWF.Wherein, SWA is the host node of single Ethernet ring.There are two ports, respectively port a, port in each node
b.Wherein, the port a on host node is master port, and port b is secondary port.
In the prior art, in order to detect whether the loop-net operation is normal, each node can be to adjacent node periodically
Send CCM (Continuity Check Message, connectivity checks message) message.If this end node is sent out to peer node
Send after CCM message, the response message of peer node is not received, it is determined that the link between this end node and peer node occurs
Failure.If this end node is sent after CCM message to peer node, the response message of peer node is received, it is determined that local terminal
Link normal operation between node and peer node.
When the loop-net operation is normal, the master port on host node is set to forwarding state, and secondary port is set to block shape
State；Wherein, forwarding state refers to that the node can be sent datagram and be controlled message by the port, and blocked state refers to
The node can send control message by the port, but can not send datagram.
Fig. 2 is referred to, Fig. 2 is that a kind of single Ethernet ring shown in the application the schematic diagram of link failure occurs.
When the looped network breaks down, the port of faulty link side can be set to resistance by the node where faulty link
Plug-like state, and SF message is sent by the normal link of opposite side；Wherein, the SF message is used to notify host node and other each
The message broken down from node link.
For example, as shown in Fig. 2 when the link between node SWB and node SWC breaks down, node SWB will can be held
Mouth a is set to blocked state, and port b can be set to blocked state by node SWC.Then node SWB sends SF by port b
Message, node SWC sends SF message by port a.
When host node receives SF message, secondary port can be set to forwarding state, it is ensured that each node of looped network is kept
Proper communication.For example, as shown in Fig. 2 when node SWA receives SF message, port b can be set into forwarding state.
Fig. 3 is referred to, Fig. 3 is a kind of schematic diagram of single Ethernet ring link failure recovery shown in the application.
When faulty link recovers, the node where former faulty link can send NR by the normal link of opposite side and disappear
Breath, and start the timer pre-set.Wherein, the timer now started on the node where former faulty link is used to judge
Whether the NRRB message sent during the timer expiry that host node is set on its node loses in transmission process.If in original
After timer expiry where faulty link on node, the node does not receive the NRRB message of host node transmission, it is determined that
The NRRB message has been lost in transmission process.
When host node receives NR message, host node can start the timer pre-set.Wherein, set on host node
The timer put is used to wait former faulty link to recover stable state completely, it is to avoid former faulty link intermittent defect causes master
The state of node frequent switching pair port.
Wherein, the timer and host node that the node where former faulty link now starts receive what is started after NR message
The timing length of timer is identical.
For example, as shown in figure 3, after the fault recovery of the link between node SWB and node SWC, node SWB can lead to
Cross port b and send NR message, node SWC can send NR message by port a, meanwhile, node SWB and node SWC can be opened
The dynamic timer pre-set.When node SWA receives NR message, the timer pre-set can be started.
Fig. 4 is referred to, Fig. 4 is a kind of schematic diagram of single Ethernet ring host node recovery normal condition shown in the application.
If secondary port can be set to blocked state, Ran Houtong by default timer expiry on host node, host node
Cross Primary port and secondary port and be simultaneously emitted by NRRB message.If for example, as shown in figure 4, default timer surpasses on node SWA
When, port b can be set to blocked state by node SWA, may then pass through port a and port b is simultaneously emitted by NRRB message.
However, during host node sends NRRB message to the node where former faulty link, the NRRB message
It may lose.If the node where former faulty link, NRRB is received when default timer has not timed out on its node
Message, it is determined that NRRB message is not lost.In this case, the node can be set the port of former faulty link side
For forwarding state, meanwhile, MAC address entries and ARP (Address Resolution Protocol, address resolution association can be removed
View)/ND (neighbor Diacovery, Neighbor Discovery Protocol) list item.
If the node where former faulty link, on its node not receiving NRRB after default timer expiry disappears
Breath, it is determined that NRRB information drop-outs.In this case, the node can start the link-recovery that another pre-sets
The timer of forwarding state.Wherein, the timer is used to the port of former faulty link side actively is set into forwarding state, in order to
Accelerate the convergence rate of looped network, the timing length set by the timer is generally shorter.When the timer expiry, the node can
The port of former faulty link side is set to by forwarding state with active.For example, as shown in figure 4, node SWC or node SWB exist
Send after the timer expiry started after NR message, when not receiving the NRRB message that host node is sent, other one can be started
The timer of the individual link-recovery forwarding state pre-set.
In summary, conventionally, as when waiting this section of timer expiry of link-recovery forwarding state
In, the data message that the secondary port of host node is forwarded the need for being in blocked state, all process host nodes can only be from main side
Mouth is forwarded, but during this period of time, it is necessary to which the data message forwarded by former faulty link can not be by cause
Hinder link to continue to forward, so that the increase of data message loss quantity can be caused.
In order to solve the problems of the prior art, present applicant proposes a kind of side of the pretection switch based on ERPS agreements
Method, applied to the host node of Ethernet ring and any from node.The Ethernet ring is single Ethernet ring in same LAN,
The Ethernet ring includes a host node with several from node, wherein any one in the both sides port of the host node
Side ports are arranged to blocked state in the Ethernet ring link normal condition, in the Ethernet ring link normal condition
When be arranged to the port of blocked state and be referred to as secondary port, another is arranged to the port referred to as master port of forwarding state.
The technical scheme proposed below by way of specific embodiment and schematic diagram to the application is described.
Fig. 5 is referred to, Fig. 5 is a kind of pretection switch method based on ERPS agreements that the embodiment of the present application is illustrated
Flow chart.Wherein, after the second timer is overtime, there is a node can be with two nodes where the Target Link
The NRRB message that the host node is sent is received, another node can not receive NRRB message, specifically perform following steps：
Step 501：When any from nodal test to the Target Link hair this node and the neighbor node of any side
During raw failure, by the normal link of opposite side to host node, and other SF message is sent from node；
In embodiments herein, any node in Ethernet ring periodically can send CCM to neighbor node
Message, detects whether the link between this node and neighbor node breaks down.If this end node sends CCM to peer node
After message, the response message of peer node is not received, it is determined that the link between this end node and peer node breaks down.
If this end node to peer node send CCM message after, receive the response message of peer node, it is determined that this end node with
Link normal operation between peer node.
When it is any broken down from nodal test to the Target Link this node and the neighbor node of any side when,
This can be by the way that the normal link of opposite side is to host node and other from node sends SF message from node.Meanwhile, should be from node
The port of faulty link side can be set to blocked state.Wherein, the blocked state refers to that the node can be by this
Port sends control message, but can not send datagram.
For example, as shown in Fig. 2 when the link between node SWB and node SWC breaks down, node SWB will can be held
Mouth a is set to blocked state, and port b can be set to blocked state by node SWC.Then node SWB sends SF by port b
Message, node SWC sends SF message by port a.
When host node receives SF message, secondary port can be set to forwarding state, it is ensured that each node of looped network is kept
Proper communication.For example, as shown in Fig. 2 when node SWA receives SF message, port b can be set into forwarding state.
Step 502：When the Target Link recovers normal, it is described from node can by the normal link of opposite side to
Host node sends NR message, and the port with the Target Link side is set into blocked state, and starts on this node
First timer；
When it is any from nodal test to the neighbor node of any side Target Link break down, and by target
The port of link side is set to after forwarding state, and the node still may proceed to pair periodically to the Target Link side
End node sends CCM message, if the response message that the peer node for being not received by the Target Link side is returned, now
This node no longer sends SF message to host node.If the response that the peer node for receiving the Target Link side is returned disappears
Breath, then can determine that the Target Link is recovered normal.
It is described to pass through opposite side from node when the Target Link recovers normal in embodiments herein
Normal link to host node send NR message.Then, the port of the Target Link side is set to blocked state, and opened
Move the first timer pre-set on the node.
Wherein, the first timer is used to judge to send when the second timer that host node is set on its node is overtime
NRRB message whether in transmission process lose.If after first timer time-out, the node does not receive host node
The NRRB message of transmission, it is determined that the NRRB message has been lost in transmission process.
Step 503：When the Target Link recovers normal, being sent out from node where the host node reception Target Link
The NR message sent, and start the second timer pre-set on this node；
In the embodiment shown in the application, when the Target Link recovers normal, the host node can be received
The NR message sent from node where the Target Link.The host node is received after the NR message, can start this
The second timer pre-set on node；Wherein, the second timer is used to wait the Target Link to recover steady completely
Determine state, it is to avoid the Target Link intermittent defect leads the state of the secondary port of the host node frequent switching.
It should be noted that the second timer is identical with the timing length of the first timer.The application's
In embodiment, the size of the timing length of the first timer and the second timer can be adjusted according to user's request
It is whole, do not make specific restriction to this.
For example, as shown in figure 3, after the fault recovery of the link between node SWB and node SWC, node SWB can lead to
Cross port b and send NR message, node SWC can send NR message by port a, meanwhile, node SWB and node SWC can be opened
The dynamic first timer pre-set.When node SWA receives NR message, the second timer pre-set can be started.
Step 504：After the second timer is overtime, the first timer is also simultaneously overtime, and the host node will
Secondary port is set to blocked state, and sends the NRRB message corresponding to the Target Link simultaneously by both sides port, described
Node where Target Link can send NR message to the host node again by the normal link of opposite side；Wherein, institute
State first timer identical with the timing length of the second timer；
In embodiments herein, when the second timer is overtime, the host node can be set secondary port
For blocked state.Then, the host node can be corresponded to each sent from node of Ethernet ring simultaneously by major and minor port
The NRRB message of the Target Link.
Wherein, when the second timer is overtime, the first timer is simultaneously also overtime.When the first timer
When overtime, NR can be sent again to host node by the normal link of opposite side from node and disappears where the Target Link
Breath.
However, the NRRB message may be lost in transmission process due to the other factorses in network.
After the host node sends the NRRB message, two where the Target Link have a section from node
Point can receive the NRRB message, in the case that another node can not receive the NRR message, when host node again
When receiving NR message, can be received in two nodes where the Target Link NRRB message from node simultaneously
The NRRB message can also be received.
If receiving the NRRB message from node where the Target Link, it is described can be by the mesh from node
The port of mark link side is set to forwarding state.If being not received by the NRRB from node where the Target Link
Message, it is described the port of the Target Link side to be kept blocked state from node.
For example, referring to Fig. 6, Fig. 6 is that one kind that the embodiment of the present application is illustrated is fixed in first timer and second
When device it is overtime when Ethernet ring schematic diagram.
When the first timer and second timer time-out simultaneously, port b can be set to by host node SWA
Blocked state, is then simultaneously emitted by NRRB message by port a and port b.Node SWB can be by port b again to main section
Point SWA sends NR message, and node SWC can send NR message to host node SWA again by port a.
Assuming that node SWC is not received by the NRRB message, node SWB have received the NRRB message.Node SWB
Port a can be set to forwarding state, port b can be kept blocked state by node SWC.
Step 505：After the host node receives NR message again, sent simultaneously again by both sides port immediately
NRRB message, after the NRRB message is received again from node where the Target Link, the NRRB message is led to
Cross the Target Link to send to opposite end from node, so that the port of the Target Link side is recovered from node in opposite end
Forwarding state.
In embodiments herein, after the host node receives the NR message again, the host node can be with
NRRB message is sent by the port of both sides simultaneously again.Wherein, the host node is sent after NRRB message for the first time, the mesh
Mark link where two can be received from node the NRRB message from node, can still receive the main section
The NRRB message that point is sent again；Two where the Target Link be not received by from node the NRRB message from
Node, will not still receive the NRRB message that the host node is sent again.
In two nodes where the Target Link, the NRRB that can receive host node transmission for the first time disappears
The node of breath, when receiving the NRRB message that the host node is sent again again, should will can again be received from node
NRRB message is sent to peer node by the Target Link.
Wherein, when each node receives NRRB message from port blocked, it will usually by the NRRB message as data
Message, the NRRB message is abandoned.Therefore, in embodiments herein, described respectively from node for described
Two ports have been pre-configured with the acl rule with NRRB match messages.Connect when from node from the either port of described two ports
It is described the port from blocked state to be reverted to forwarding state from node when receiving NRRB message.
After the peer node receives the NRRB message, the peer node can by the NRRB message with it is pre-
The acl rule first configured is matched.When the match is successful, the peer node can be by the port of the Target Link side
Revert to forwarding state.
For example, Fig. 7 is referred to, when Fig. 7 is that the host node that the embodiment of the present application is illustrated sends NRRB message again
The schematic diagram of Ethernet ring.
When host node SWA receives NRRB message again, host node SWA does not restart timer, passes through port a immediately
NRRB message is sent simultaneously again with port b.Assuming that the NRRB that node SWB can receive host node SWA transmissions for the first time disappears
Breath, node SWC is not received by the NRRB message that host node SWA is sent for the first time.In this case, node SWB can be with
The NRRB message that host node SWA is sent again is received, node SWC will not still receive what host node SWA was sent again
NRRB message.
The NRRB message can be passed through section by node SWB after the NRRB message that host node SWA is sent again is received
Link between point SWB and SWC is sent to node SWC.Node SWC can be received by port b after the NRRB message, so
The NRRB message is matched with the acl rule being pre-configured with afterwards.Due to being configured with advance for port a on node SWC
With NRRB match messages acl rules, therefore, when node SWC, which will receive the NRRB message, to be matched with the acl rule, institute
Stating NRRB message can be so that the match is successful, so that port b can be reverted to forwarding state by node SWC.
The technical method provided from above the application, methods described includes：When any from nodal test to this node
When Target Link between the neighbor node of any side breaks down, by the normal link of opposite side to host node, with
And it is other from node transmission SF message；When the Target Link recover it is normal when, it is described can be by opposite side just from node
Normal chain road direction host node sends NR message, and will be set to blocked state with the port of the Target Link side, and in this section
Start first timer on point；
When the Target Link recovers normal, host node receives the NR message sent where the link from node, and
Start the second timer pre-set on this node；After the second timer is overtime, the first timer is also simultaneously
Secondary port is set to blocked state by time-out, the host node, and is sent simultaneously corresponding to the object chain by both sides port
The NRRB message on road, the node where the Target Link can be sent out to the host node again by the normal link of opposite side
Send NR message；Wherein, the first timer is identical with the timing length of the second timer；
After the host node receives NR message again, NRRB message is sent by both sides port simultaneously again immediately,
After the NRRB message is received again from node where the Target Link, the NRRB message is passed through into the target
Link is sent to opposite end from node, so that forwarding state from node by the port of the Target Link side is recovered in opposite end.
Because in this application, two where the Target Link are no longer detected that the second timer surpasses from node
When after whether receive the NRRB message that the host node is sent, but directly send NR message again to the host node.By
Only one of which node can receive the main section in two nodes where defining the Target Link in this application
The NRRB message that point is sent for the first time, therefore, it can receive the node for the NRRB message that the host node is sent for the first time, can
So that the NRRB received again message is sent to peer node by the Target Link.The peer node receives described
After NRRB message, the port of the Target Link side can be reverted into forwarding state immediately.It therefore, it can save existing skill
Waited in art where the Target Link from node, it is determined that the link-recovery started after the NRRB information drop-outs forwards shape
This period of the timer expiry of state.It is thus possible to accelerate the convergence rate after Ethernet ring fault recovery, datagram is reduced
The loss of text.
Corresponding with a kind of foregoing embodiment of the pretection switch method based on ERPS agreements, present invention also provides one kind
The embodiment of pretection switch device based on ERPS agreements.
A kind of embodiment of the pretection switch device based on ERPS agreements of the application can apply appointing in Ethernet ring
One from node.Device embodiment can be realized by software, can also be realized by way of hardware or software and hardware combining.
Exemplified by implemented in software, as the device on a logical meaning, being will be non-volatile from the processor on node by its place
Property memory in corresponding computer program instructions read in internal memory what operation was formed.For hardware view, such as Fig. 8 institutes
Show, be a kind of a kind of hardware structure diagram of the pretection switch device place based on ERPS agreements of the application from node, except Fig. 8 institutes
It is usual from node where device in embodiment outside the processor, internal memory, network interface and the nonvolatile memory that show
According to the actual functional capability of the pretection switch based on ERPS agreements, other hardware can also be included, this is repeated no more.
Fig. 9 is referred to, Fig. 9 is a kind of pretection switch dress based on ERPS agreements that the embodiment of the present application is illustrated
Put, applied to any from node in Ethernet ring, the Ethernet ring is single Ethernet ring in same LAN, it is described with
Too net ring includes a host node with several from node, wherein any one side ports in the both sides port of the host node
It is arranged to blocked state in the Ethernet ring link normal condition, described device includes：SF message sending units 910,
NR message sending units 920, NRRB message transmission/reception unit 930, NRRB message sending units 940.
Wherein, the SF message sending units 910, between the neighbor node of this node and any side is detected
Target Link when breaking down, by the normal link of opposite side to host node, and other send SF message from node；
The NR message sending units 920, for when the Target Link recovers normal, passing through the normal, chain of opposite side
Road direction host node sends NR message, and the first port of the Target Link side is set into blocked state, and in this section
Start first timer on point, so that host node starts second timer after receiving the NR message on the host node；
Wherein, the first timer is identical with the timing length of the second timer；
The NRRB message reception units 930, for receiving host node when the second timer is overtime, pass through both sides
The NRRB message corresponding to the Target Link that port is sent simultaneously, and the first port of the Target Link side is recovered
For forwarding state；And,
The NRRB message sending units 940, for after first timer time-out, passing through the normal, chain of opposite side
Road direction host node sends NR message again, and is receiving after the host node receives the NR message again immediately by two
During the NRRB message that side ports are simultaneously emitted by, the NRRB message is sent to the Target Link one by the first port
The second port of the peer node of side, forwarding state is reverted to trigger the second port.
In embodiments herein, each node can detect whether Target Link breaks down, and in the target
After link breaks down, detect whether the Target Link recovers normal, described device also includes：
CCM message sending units, periodically CCM message is sent for this node to the neighbor node of any side；And,
After the first port of the Target Link side is set into blocked state, this node is still periodically to the Target Link
The peer node of side sends CCM message；
First determining unit, if not receiving the sound for the CCM message that the neighbor node is sent for this node
Message is answered, determines that the Target Link between this node and the neighbor node breaks down；
Second determining unit, if receiving the response for the CCM message that the neighbor node is sent for this node
Message, determines the Target Link normal operation between this node and the neighbor node.
3rd determining unit, if what the peer node for not receiving the Target Link side for this node was sent
The response message of CCM message, determines that the Target Link does not recover normal；
4th determining unit, if the CCM sent for the peer node that this node receives the Target Link side
The response message of message, determines that the Target Link recovers normal.
In addition, in embodiments herein, thering is a node not connect in two nodes where the Target Link
The NRRB message is received, described device also includes：
Holding unit, if not receiving the host node for this node when the second timer is overtime, passes through
The NRRB message corresponding to the Target Link that both sides port is sent simultaneously, the first port of the Target Link side is protected
Hold blocked state；
NRRB message reception units, be additionally operable to receive the peer node of the Target Link side receive again it is described
After the NRRB message that host node is sent, the NRRB message sent by the second port of the Target Link side；
Matching unit, will for the NRRB message to be matched with pre-configured acl rule, and after the match is successful
The first port of the Target Link side reverts to forwarding state.
Corresponding with a kind of foregoing embodiment of the pretection switch method based on ERPS agreements, present invention also provides another
Plant the embodiment of the pretection switch device based on ERPS agreements.
A kind of embodiment of the pretection switch device based on ERPS agreements of the application can apply the master in Ethernet ring
On node.Device embodiment can be realized by software, can also be realized by way of hardware or software and hardware combining.With soft
Exemplified by part is realized, as the device on a logical meaning, be by its processor on the primary node deposited non-volatile
Corresponding computer program instructions read what operation in internal memory was formed in reservoir.For hardware view, as shown in Figure 10, it is
A kind of hardware structure diagram of host node where a kind of pretection switch device based on ERPS agreements of the application, except shown in Figure 10
Outside processor, internal memory, network interface and nonvolatile memory, host node in embodiment where device generally according to
The actual functional capability of the pretection switch based on ERPS agreements, can also include other hardware, this is repeated no more.
Figure 11 is referred to, Figure 11 is another pretection switch based on ERPS agreements that the embodiment of the present application is illustrated
Device, applied to the host node in Ethernet ring, the Ethernet ring is single Ethernet ring in same LAN, the ether
Net ring includes a host node with several from node, wherein any one side ports in the both sides port of the host node exist
It is arranged to blocked state during the Ethernet ring link normal condition, described device includes：SF message reception units 1110, NR
Message reception units 1120, NRRB message sending units 1130.
Wherein, the SF message reception units 1110, for when any between the neighbor node of node and any side
Target Link when breaking down, receive the SF message that the normal link for passing through opposite side from node is sent；
The NR message reception units 1120, for when the Target Link recovers normal, receiving described logical from node
The NR message that the normal link of opposite side is sent is crossed, and starts second regularly on this node after the NR message is received
Device；Wherein, the second timer is sent after NR message in the first timer started from node with described from node
Timing length it is identical；
The NRRB message sending units 1130, for after the second timer is overtime, by both sides port simultaneously
Send the NRRB message corresponding to the Target Link so that it is described from node by the first port of the side of the Target Link
Revert to forwarding state；And,
The NR message reception units 1110, for receive it is described from node after first timer time-out, pass through
The NR message that the normal link of opposite side is sent again；
The NRRB message sending units 1130, for after this node receives the NR message immediately by two side ends
Mouth sends NRRB message simultaneously again, so that described receive NRRB message hair after the NRRB message again from node
The second port of the peer node of the Target Link side is delivered to, forwarding state is reverted to trigger the second port.
The function of unit and the implementation process of effect specifically refer to correspondence step in the above method in said apparatus
Implementation process, will not be repeated here.
For device embodiment, because it corresponds essentially to embodiment of the method, so related part is real referring to method
Apply the part explanation of example.Device embodiment described above is only schematical, wherein described be used as separating component
The unit of explanation can be or may not be physically separate, and the part shown as unit can be or can also
It is not physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Can be according to reality
Selection some or all of module therein is needed to realize the purpose of application scheme.Those of ordinary skill in the art are not paying
In the case of going out creative work, you can to understand and implement.
The preferred embodiment of the application is the foregoing is only, not to limit the application, all essences in the application
God is with principle, and any modification, equivalent substitution and improvements done etc. should be included within the scope of the application protection.
Claims (10)
1. a kind of pretection switch method based on ERPS agreements, applied to any from node in Ethernet ring, Ethernet
Ring is single Ethernet ring in same LAN, and the Ethernet ring includes a host node with several from node, wherein
Any one side ports in the both sides port of the host node are arranged to obstruction in the Ethernet ring link normal condition
State, it is characterised in that including：
When the Target Link between detecting the neighbor node of this node and any side breaks down, by opposite side just
Normal chain road direction host node, and it is other from node transmission SF message；
When the Target Link recovers normal, NR message is sent to host node by the normal link of opposite side, and will be described
The first port of Target Link side is set to blocked state, and starts first timer on this node, so that host node
Start second timer on the host node after receiving the NR message；Wherein, the first timer and described second
The timing length of timer is identical；
Host node is received when the second timer is overtime, corresponds to the Target Link by what both sides port was sent simultaneously
NRRB message, and the first port of the Target Link side is reverted into forwarding state；And,
After first timer time-out, NR message is sent to host node by the normal link of opposite side again, and connecing
When receiving the host node and receiving the NRRB message being simultaneously emitted by immediately by both sides port after the NR message again, pass through
The first port sends the NRRB message second port of the peer node to the Target Link side, to trigger
State second port and revert to forwarding state.
2. according to the method described in claim 1, it is characterised in that the neighbor node for detecting this node and any side
Between Target Link break down, including：
This node periodically sends CCM message to the neighbor node of any side；
If this node does not receive the response message for the CCM message that the neighbor node is sent, this node and institute are determined
The Target Link stated between neighbor node breaks down；
If this node receives the response message for the CCM message that the neighbor node is sent, determine this node with it is described
Target Link normal operation between neighbor node.
3. method according to claim 2, it is characterised in that the Target Link recovers normal, including：
After the first port of the Target Link side is set into blocked state, this node is still periodically to the target
The peer node of link side sends CCM message；
If the response message for the CCM message that the peer node that this node does not receive the Target Link side is sent, it is determined that
The Target Link does not recover normal；
If the response message for the CCM message that the peer node that this node receives the Target Link side is sent, determines institute
State Target Link and recover normal.
4. according to the method described in claim 1, it is characterised in that any port from node both sides be pre-configured with
The acl rule of the NRRB match messages；
Methods described also includes：
If this node does not receive the host node when the second timer is overtime, sent simultaneously by both sides port
Corresponding to the NRRB message of the Target Link, the first port of the Target Link side is kept into blocked state；
The peer node of the Target Link side is received after the NRRB message that the host node is sent is received again, is passed through
The NRRB message that the second port of the Target Link side is sent；
The NRRB message is matched with pre-configured acl rule, and by the Target Link side after the match is successful
First port revert to forwarding state.
5. a kind of pretection switch method based on ERPS agreements, applied to the host node in Ethernet ring, the Ethernet ring is
Single Ethernet ring of same LAN, the Ethernet ring includes a host node with several from node, wherein the master
Any one side ports are arranged to blocked state in the Ethernet ring link normal condition in two ports of node, and it is special
Levy and be, including：
When any Target Link between the neighbor node of node and any side breaks down, receive described logical from node
Cross the SF message that the normal link of opposite side is sent；
When the Target Link recovers normal, the NR message sent from node by the normal link of opposite side is received,
And start second timer on this node after the NR message is received；Wherein, the second timer with it is described from section
The timing length that point is sent after NR message in the first timer started from node is identical；
After the second timer is overtime, the NRRB message corresponding to the Target Link is sent simultaneously by both sides port,
So that described revert to forwarding state from node by the first port of the side of the Target Link；And,
Described in receiving from node after first timer time-out, the NR sent again by the normal link of opposite side disappears
Breath, and NRRB message is sent by both sides port simultaneously again immediately after this node receives the NR message, so that described
Received again from node after the NRRB message and to send the NRRB message to the peer node of the Target Link side
Second port, revert to forwarding state to trigger the second port.
6. a kind of pretection switch device based on ERPS agreements, applied to any from node in Ethernet ring, Ethernet
Ring is single Ethernet ring in same LAN, and the Ethernet ring includes a host node with several from node, wherein
Any one side ports in the both sides port of the host node are arranged to obstruction in the Ethernet ring link normal condition
State, it is characterised in that including：
SF message sending units, occur event for the Target Link between the neighbor node of this node and any side is detected
During barrier, by the normal link of opposite side to host node, and other SF message is sent from node；
NR message sending units, for when the Target Link recovers normal, by the normal link of opposite side to host node
NR message is sent, and the first port of the Target Link side blocked state is set to, and starts on this node the
One timer, so that host node starts second timer after receiving the NR message on the host node；Wherein, described
One timer is identical with the timing length of the second timer；
NRRB message reception units, for receiving host node when the second timer is overtime, are sent out simultaneously by both sides port
The NRRB message corresponding to the Target Link sent, and the first port of the Target Link side is reverted into forwarding shape
State；And,
NRRB message sending units, for after first timer time-out, by the normal link of opposite side to host node
Send NR message again, and receive after the host node receives the NR message again immediately by both sides port simultaneously
During the NRRB message sent, the NRRB message is sent to the Target Link side to end segment by the first port
The second port of point, forwarding state is reverted to trigger the second port.
7. device according to claim 6, it is characterised in that described device also includes：
CCM message sending units, periodically CCM message is sent for this node to the neighbor node of any side；
First determining unit, if not receiving the response report for the CCM message that the neighbor node is sent for this node
Text, determines that the Target Link between this node and the neighbor node breaks down；
Second determining unit, if receiving the response message for the CCM message that the neighbor node is sent for this node,
Determine the Target Link normal operation between this node and the neighbor node.
8. device according to claim 7, it is characterised in that including：
CCM message sending units, are additionally operable to after the first port of the Target Link side is set into blocked state, this section
Point still periodically sends CCM message to the peer node of the Target Link side；
3rd determining unit, if the CCM that the peer node for not receiving the Target Link side for this node is sent disappears
The response message of breath, determines that the Target Link does not recover normal；
4th determining unit, if the CCM message sent for the peer node that this node receives the Target Link side
Response message, determine that the Target Link recovers normal.
9. device according to claim 6, it is characterised in that any port from node both sides be pre-configured with
The acl rule of the NRRB match messages；
Described device also includes：
Holding unit, if not receiving the host node for this node when the second timer is overtime, passes through both sides
The NRRB message corresponding to the Target Link that port is sent simultaneously, the first port of the Target Link side is kept to hinder
Plug-like state；
NRRB message reception units, the peer node for being additionally operable to receive the Target Link side is receiving the main section again
After the NRRB message that point is sent, the NRRB message sent by the second port of the Target Link side；
Matching unit, will be described for the NRRB message to be matched with pre-configured acl rule, and after the match is successful
The first port of Target Link side reverts to forwarding state.
10. a kind of pretection switch device based on ERPS agreements, applied to the host node in Ethernet ring, the Ethernet ring is
Single Ethernet ring of same LAN, the Ethernet ring includes a host node with several from node, wherein the master
Any one side ports are arranged to blocked state in the Ethernet ring link normal condition in two ports of node, and it is special
Levy and be, including：
SF message reception units, for being broken down when any Target Link between the neighbor node of node and any side
When, receive the SF message sent from node by the normal link of opposite side；
NR message reception units, for when the Target Link recovers normal, receive it is described from node by opposite side just
The NR message that normal link is sent, and start second timer on this node after the NR message is received；Wherein, described
Two timers are identical with the timing length sent from node after NR message in the first timer started from node；
NRRB message sending units, for after the second timer is overtime, being sent by both sides port and corresponding to institute simultaneously
The NRRB message of Target Link is stated, so that described revert to forwarding shape from node by the first port of the side of the Target Link
State；And,
NR message reception units, for receive it is described from node after first timer time-out, pass through the normal of opposite side
The NR message that link is sent again；
NRRB message sending units, for being sent out again by both sides port immediately after this node receives the NR message simultaneously
NRRB message is sent, so that described received again from node after the NRRB message sends the NRRB message to the target
The second port of the peer node of link side, forwarding state is reverted to trigger the second port.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110336728A (en) * | 2019-07-26 | 2019-10-15 | 新华三大数据技术有限公司 | A kind of message processing method, node device, electronic equipment and readable storage medium storing program for executing |
| CN110545198A (en) * | 2018-05-29 | 2019-12-06 | 北京华为数字技术有限公司 | ERPS loop breaking method and master node |
| CN111918316A (en) * | 2019-05-10 | 2020-11-10 | 大唐移动通信设备有限公司 | Base station maintenance method and base station maintenance device |
| CN112637052A (en) * | 2020-12-18 | 2021-04-09 | 迈普通信技术股份有限公司 | Switching method, switching device, ring network, electronic equipment and storage medium |
| CN112930694A (en) * | 2018-10-26 | 2021-06-08 | 株式会社Kt | Method and device for performing vehicle communication |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101072154A (en) * | 2007-03-02 | 2007-11-14 | 中兴通讯股份有限公司 | Loop Ethernet switching method |
| CN101217445A (en) * | 2008-01-21 | 2008-07-09 | 杭州华三通信技术有限公司 | A method of loop generation protection and Ethernet ring system |
| CN101232428A (en) * | 2007-01-23 | 2008-07-30 | 华为技术有限公司 | Method and device for protecting an Ethernet ring |
| CN101309215A (en) * | 2008-06-25 | 2008-11-19 | 北京星网锐捷网络技术有限公司 | Ethernet ring network link restoring and detecting method and Ethernet ring network switch |
| CN101741673A (en) * | 2008-11-25 | 2010-06-16 | 中兴通讯股份有限公司 | Address refreshing method of Ethernet ring |
| CN102045231A (en) * | 2010-12-31 | 2011-05-04 | 北京华源格林科技有限公司 | Quick switching method for Ethernet redundancy ring network |
| CN104065546A (en) * | 2014-07-04 | 2014-09-24 | 引通通讯科技（上海）有限公司 | Ethernet protection switching method |
| CN104135417A (en) * | 2014-08-27 | 2014-11-05 | 杭州立地信息技术有限公司 | Quick recovery method for ethernet ring network link interruption and corresponding ethernet ring network |
-
2017
- 2017-05-22 CN CN201710362345.5A patent/CN107171840B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101232428A (en) * | 2007-01-23 | 2008-07-30 | 华为技术有限公司 | Method and device for protecting an Ethernet ring |
| CN101072154A (en) * | 2007-03-02 | 2007-11-14 | 中兴通讯股份有限公司 | Loop Ethernet switching method |
| CN101217445A (en) * | 2008-01-21 | 2008-07-09 | 杭州华三通信技术有限公司 | A method of loop generation protection and Ethernet ring system |
| CN101309215A (en) * | 2008-06-25 | 2008-11-19 | 北京星网锐捷网络技术有限公司 | Ethernet ring network link restoring and detecting method and Ethernet ring network switch |
| CN101741673A (en) * | 2008-11-25 | 2010-06-16 | 中兴通讯股份有限公司 | Address refreshing method of Ethernet ring |
| CN102045231A (en) * | 2010-12-31 | 2011-05-04 | 北京华源格林科技有限公司 | Quick switching method for Ethernet redundancy ring network |
| CN104065546A (en) * | 2014-07-04 | 2014-09-24 | 引通通讯科技（上海）有限公司 | Ethernet protection switching method |
| CN104135417A (en) * | 2014-08-27 | 2014-11-05 | 杭州立地信息技术有限公司 | Quick recovery method for ethernet ring network link interruption and corresponding ethernet ring network |
Non-Patent Citations (1)
| Title |
|---|
| 崔素娟: "《基于G.8032的以太网环网保护技术研究与实现》", 《中国优秀硕士学位论文全文数据库-信息科技辑》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110545198A (en) * | 2018-05-29 | 2019-12-06 | 北京华为数字技术有限公司 | ERPS loop breaking method and master node |
| CN110545198B (en) * | 2018-05-29 | 2022-11-18 | 北京华为数字技术有限公司 | ERPS loop breaking method and master node |
| CN112930694A (en) * | 2018-10-26 | 2021-06-08 | 株式会社Kt | Method and device for performing vehicle communication |
| US11917706B2 (en) | 2018-10-26 | 2024-02-27 | Kt Corporation | Method and apparatus for performing vehicle communication |
| CN111918316A (en) * | 2019-05-10 | 2020-11-10 | 大唐移动通信设备有限公司 | Base station maintenance method and base station maintenance device |
| CN111918316B (en) * | 2019-05-10 | 2022-05-03 | 大唐移动通信设备有限公司 | Base station maintenance method and base station maintenance device |
| CN110336728A (en) * | 2019-07-26 | 2019-10-15 | 新华三大数据技术有限公司 | A kind of message processing method, node device, electronic equipment and readable storage medium storing program for executing |
| CN110336728B (en) * | 2019-07-26 | 2021-08-06 | 新华三大数据技术有限公司 | Message processing method, node equipment, electronic equipment and readable storage medium |
| CN112637052A (en) * | 2020-12-18 | 2021-04-09 | 迈普通信技术股份有限公司 | Switching method, switching device, ring network, electronic equipment and storage medium |
| CN112637052B (en) * | 2020-12-18 | 2022-02-22 | 迈普通信技术股份有限公司 | Switching method, switching device, ring network, electronic equipment and storage medium |
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