CN104426777B - Route renewing method and routing device - Google Patents
Route renewing method and routing device Download PDFInfo
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- CN104426777B CN104426777B CN201310396411.2A CN201310396411A CN104426777B CN 104426777 B CN104426777 B CN 104426777B CN 201310396411 A CN201310396411 A CN 201310396411A CN 104426777 B CN104426777 B CN 104426777B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/64—Hybrid switching systems
- H04L12/6418—Hybrid transport
Abstract
The present invention relates to a kind of route renewing method and routing devices, wherein the route renewing method includes：Specified route-bridge DRB turns originator AF channels by specified, AF status report messages are received from the route-bridge of TRILL network, the AF channels are according to the message channel between the route-bridge and the DRB of the channel Mechanism establishing of TRILL protocol, the AF status report messages are used to indicate the first route-bridge and are changed to non-AF by the AF of virtual LAN VLAN, and the VLAN interconnects TRILL network by Spanning-Tree Protocol STP network insertion transparent interconnection of lots of links.RB by AF channels to DRB report oneself whether or some VLAN AF, DRB can quickly detect the variation of AF states, improve TRILL STP mixed networking scene lower network convergence rates.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of route renewing methods and routing device.
Background technology
Ethernet uses STP in data forwarding layer（Span Tree Protocol, Spanning-Tree Protocol）.STP is to be based on
OSI（Open System Interconnect Reference Model, Open System Interconnection Reference Model）Data-link
Road floor（Two layers）Communications protocol.Network topology can be generated one tree by STP, avoid the network loopback in LAN, solve at
" broadcast storm " problem of ring ethernet network.STP can be eliminated as a kind of network protection technique due to error or accident
That brings is connected by circulation.But STP have the shortcomings that it is apparent, such as：（1）STP is by blocking certain port come anti-loops, no
Allow Multi-path route（multipath routing）, all flows are all propagated on one tree, even if there is idle chain
Road can not be used, and bandwidth usage is insufficient；（2）Flow can be along non-optimal path（Such as shortest path）Transmission；（3）
In STP protocol, Ethernet data frames do not have TTL（Time To Live, life span）Field causes if there is communication failure
When loop, broadcast storm problem is still will produce, it is very serious to the harm of network.
TRILL（Transparent Interconnection of Lots of Links, transparent interconnection of lots of links interconnection）Association
View is IETF（Internet Engineering Task Force, internet engineering task group）Just in standardized internet
Two layers of Ethernet multirouting solution, can overcome the shortcomings of STP.TRILL protocol is at two layers（Data link layer）Introduce three
Layer（Network layer）IS-IS（Intermediate System To Intermediate System, intermediate system are to centre
System）Routing protocol（Routing Protocol）Replace STP protocol, data forwarding can be carried out according to shortest path,
Make it possible Multi-path route so that the utilization of bandwidth is more abundant.TRILL protocol encapsulates hop count in the packet
（hop count）Field, for solving the problems, such as interim route loop.Compared with the Ethernet of tradition operation STP protocol,
TRILL network has the considerable advantage of fast convergence rate.In TRILL actual deployments, the side of STP network insertion TRILL networks
Edge is a kind of common networking mode, but this networking mode, and network convergence rate is slower, cannot be satisfied the market demand.
AF（Appointed Forwarder）It is the distinctive mechanism of TRILL, the mechanism is defined in RFC6349 agreements.When
LAN（Local Area Network, LAN）Link（link）When being linked into TRILL network by multiple edge RB, need
DRB（Designated RB specify route-bridge）Each VLAN-x to be configured on the LAN link specifies an AF such as
RB1, the only AF can be that VLAN-x receives and dispatches message, other RB such as RB2 needs " inhibition " oneself.To avoid loop and repeat to report
Text.In the case where AF role's revocation of the VLAN-x of RB1 is specified the AF that RB2 is VLAN-x by DRB, if RB2 was received
The TRILL-Hello messages that RB1 is sent, and in hello packet RB1 inform oneself be VLAN-x AF, RB2 needs to inhibit
For a period of time, inhibiting the time（inhibition timer）Interior, RB2 cannot function as the AF of VLAN-x（This inhibition reduces
The risk of loop and duplicate message）.So if due to failure or human configuration etc., even if the AF of VLAN-x is switched to
After RB2, RB2 such as are also required at the time time-out to be suppressed, the message of STP networks could be received and dispatched（Referring to RFC6325 agreements
4.2.4.3, inhibition time acquiescence was up to 30 seconds）.
Shown in sum up, " inhibiting the time " causes the convergence rate under TRILL and STP mixed networking scenes excessively slow.
Invention content
Technical problem
In view of this, how the technical problem to be solved by the present invention is to improve under TRILL and STP mixed networking scenes
Convergence rate.
Solution
In order to solve the above-mentioned technical problem, it in a first aspect, an embodiment of the present invention provides a kind of route renewing method, wraps
It includes：
Specified route-bridge DRB turns originator AF channels by specified, and AF state reports are received from the route-bridge of TRILL network
Message is accused, the AF channels are according to disappearing between the route-bridge and the DRB of the channel Mechanism establishing of TRILL protocol
Channel is ceased, the AF status report messages are used to indicate the first route-bridge and are changed to non-AF by the AF of virtual LAN VLAN,
The VLAN interconnects TRILL network by Spanning-Tree Protocol STP network insertion transparent interconnection of lots of links.
With reference to first aspect, in the first possible embodiment, the specified route-bridge DRB passes through specified forwarding
Person's AF channels receive AF status report messages from the route-bridge of TRILL network, including：
If the DRB according to the AF status report messages, determines that the AF of the VLAN is needed from the first route-bridge
It is switched to secondary route bridge, then the DRB is used to indicate elimination by the AF channels to secondary route bridge transmission
The specified message for inhibiting the time, the secondary route bridge is switched to by the AF of the VLAN.
With reference to first aspect or the first possible embodiment of first aspect, in second of possible embodiment
In, the specified route-bridge DRB turns originator AF channels by specified, and AF state reports are received from the route-bridge of TRILL network
Before accusing message, including：
Elect the DRB；
The AF channels, other described routing networks are established between the DRB and other route-bridges of the TRILL network
Bridge is the route-bridge other than the DRB in the TRILL network.
The possible embodiment of first or second kind with reference to first aspect, in the third possible embodiment, institute
It states DRB and the specified message for being used to indicate elimination and inhibiting the time is sent to the secondary route bridge by the AF channels, including：
The AF status report messages are parsed, the information of first route-bridge and the secondary route bridge is obtained；
By the AF channels, the specified message is sent to the secondary route bridge, the specified message carries
VLAN specify informations, the VLAN bitmap fields of the VLAN specify informations are used to indicate inhibits time time-out to the VLAN.
In second aspect, an embodiment of the present invention provides a kind of route renewing methods, including：
Turn originator AF channels by specified, sending AF state reports to the specified route-bridge DRB of the TRILL network disappears
Breath, the AF channels are logical according to the message between the route-bridge and the DRB of the channel Mechanism establishing of TRILL protocol
Road, the AF status report messages are used to indicate the first route-bridge and are changed to non-AF by the AF of virtual LAN VLAN, described
VLAN interconnects TRILL network by Spanning-Tree Protocol STP network insertion transparent interconnection of lots of links.
In conjunction with second aspect, in the first possible embodiment, turn originator AF channels by specified, to described
The specified route-bridge DRB of TRILL network sends AF status report messages, including：
If the AF of the VLAN needs to be switched to secondary route bridge, the secondary route net from the first route-bridge
Bridge receives to be used to indicate from the DRB by the AF channels eliminates the specified message for inhibiting the time；
The secondary route bridge is eliminated according to the specified message and inhibits the time and the AF of the VLAN is switched to institute
State secondary route bridge.
In conjunction with the first possible embodiment of second aspect, in second of possible embodiment, described second
Route-bridge, which receives to be used to indicate from the DRB by the AF channels, eliminates the specified message for inhibiting the time, including：
The secondary route bridge receives the specified message, the specified message by the AF channels from the DRB
VLAN specify informations are carried, the VLAN bitmap fields of the VLAN specify informations, which are used to indicate, inhibits the time super the VLAN
When.
In the third aspect, an embodiment of the present invention provides a kind of routing devices, including：
Receiving unit turns originator AF channels for passing through to specify, AF state reports is received from the route-bridge of TRILL network
Message, the AF channels are according to the message between the route-bridge and the DRB of the channel Mechanism establishing of TRILL protocol
Channel, the AF status report messages be used to indicate the first route-bridge non-AF is changed to by the AF of virtual LAN VLAN,
The VLAN interconnects TRILL network by Spanning-Tree Protocol STP network insertion transparent interconnection of lots of links.
In conjunction with the third aspect, in the first possible embodiment, which further includes：
If transmission unit determines that the AF of the VLAN is needed from the first via for according to the AF status report messages
Secondary route bridge is switched to by bridge, then elimination suppression is used to indicate to secondary route bridge transmission by the AF channels
The AF of the VLAN is switched to the secondary route bridge by the specified message of time processed.
In conjunction with the possible embodiment of the first of the third aspect or the third aspect, in second of possible embodiment
In, which further includes：
Unit is elected, for being DRB by routing device election；
Path Setup unit, it is described for establishing the AF channels between other route-bridges of the TRILL network
Other route-bridges are the route-bridge other than the DRB in the TRILL network.
In conjunction with the possible embodiment of first or second kind of the third aspect, in the third possible embodiment, institute
Stating transmission unit includes：
Parsing subunit obtains first route-bridge and described second for parsing the AF status report messages
The information of route-bridge；
Transmission sub-unit, it is described for by the AF channels, the specified message to be sent to the secondary route bridge
Specified message carries VLAN specify informations, and the VLAN bitmap fields of the VLAN specify informations, which are used to indicate, inhibits the VLAN
Time time-out.
In fourth aspect, an embodiment of the present invention provides a kind of routing devices, including：
Transmission unit turns originator AF channels for passing through to specify, is sent out to the specified route-bridge DRB of the TRILL network
Send AF status report messages, the AF channels are according to the route-bridge of the channel Mechanism establishing of TRILL protocol and described
Message channel between DRB, the AF status report messages are used to indicate AF of first route-bridge by virtual LAN VLAN
It is changed to non-AF, the VLAN interconnects TRILL network by Spanning-Tree Protocol STP network insertion transparent interconnection of lots of links.
In conjunction with fourth aspect, in the first possible embodiment, which further includes：
Receiving unit, if the AF for the VLAN needs to be switched to secondary route bridge from the first route-bridge,
It receives to be used to indicate from the DRB by the AF channels and eliminates the specified message for inhibiting the time；
Unit is eliminated, for according to the specified message, eliminating the inhibition time and being switched to the AF of the VLAN described
Secondary route bridge.
In conjunction with the first possible embodiment of fourth aspect, in second of possible embodiment, the reception
Unit is specifically used for：The specified message is received from the DRB by the AF channels, it is specified that the specified message carries VLAN
Information, the VLAN bitmap fields of the VLAN specify informations are used to indicate inhibits time time-out to the VLAN.
Advantageous effect
The embodiment of the present invention, RB by AF channels to DRB report oneself whether or some VLAN AF, DRB can be fast
The variation of speed detection AF states, improves TRILL-STP mixed networking scene lower network convergence rates.
According to below with reference to the accompanying drawings becoming to detailed description of illustrative embodiments, other feature of the invention and aspect
It is clear.
Description of the drawings
Including in the description and the attached drawing of a part for constitution instruction and specification together illustrate the present invention's
Exemplary embodiment, feature and aspect, and principle for explaining the present invention.
Fig. 1 a are the flow chart of the route renewing method of the embodiment of the present invention one；
Fig. 1 b are the application scenario diagram of the route renewing method of the embodiment of the present invention one；
Fig. 2 a are the flow chart of the route renewing method of the embodiment of the present invention two；
Fig. 2 b be the embodiment of the present invention two route renewing method in AF channels message format schematic diagram；
Fig. 2 c be the embodiment of the present invention two route renewing method in VLANs Appointed Sub-TLV message format
Schematic diagram；
Fig. 3 is the flow chart of the route renewing method of the embodiment of the present invention three；
Fig. 4 is the flow chart of the route renewing method of the embodiment of the present invention four；
Fig. 5 is the structure diagram of the routing device of the embodiment of the present invention five；
Fig. 6 is the structure diagram of the routing device of the embodiment of the present invention six；
Fig. 7 is the structure diagram of the routing device of the embodiment of the present invention seven；
Fig. 8 is the structure diagram of the routing device of the embodiment of the present invention eight；
Fig. 9 is the structure diagram of the routing device of the embodiment of the present invention nine.
Specific implementation mode
Below with reference to attached drawing various exemplary embodiments, feature and the aspect that the present invention will be described in detail.It is identical in attached drawing
Reference numeral indicate functionally the same or similar element.Although the various aspects of embodiment are shown in the accompanying drawings, remove
It non-specifically points out, it is not necessary to attached drawing drawn to scale.
Dedicated word " exemplary " means " being used as example, embodiment or illustrative " herein.Here as " exemplary "
Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.
In addition, in order to better illustrate the present invention, numerous details is given in specific implementation mode below.
It will be appreciated by those skilled in the art that without these details, the present invention can equally be implemented.In other example,
Known method, means, element and circuit are not described in detail, in order to highlight the purport of the present invention.
Embodiment 1
Fig. 1 a are the flow chart of the route renewing method of the embodiment of the present invention one.As shown in Figure 1a, the route renewing method
May include：
Step 101, DRB（Specified route-bridge）Pass through AF（It is specified to turn originator）Channel, from the route-bridge of TRILL network
AF status report messages are received, the AF channels is according to the route-bridge of the channel Mechanism establishing of TRILL protocol and institutes
The message channel between DRB is stated, the AF status report messages are used to indicate the first route-bridge by VLAN（Virtual LAN）
AF be changed to non-AF, the VLAN passes through STP（Spanning-Tree Protocol）Network insertion TRILL（Transparent interconnection of lots of links interconnect）Network.
Specifically, since the resistance for changing traditional ISIS agreements and HELLO agreements is very big, the embodiment of the present invention can not
Change the specified flow of AF.DRB can also specify AF according to the process defined in TRILL, such as：Transmission contains Appointed
The HELLO messages of Forwarders Sub-TLV are to specify the AF of some VLAN.In addition, the embodiment of the present invention may be used one
The new channels RB（Channel）That is AF channels complete being switched fast for AF.After DRB is elected, DRB and link-local
（That is STP networks）Other RB connected are according to the channel Mechanism establishing AF channels of TRILL protocol（Channel）, each AF to
DRB sends AF state reports（It can abbreviation Report）Message, report oneself whether or VLAN-x AF.DRB is responsible for detection
AF states.Report message is sent by AF according to the variation of assigned vlan on demand, is just sent when changing, can be with when unchanged
It does not send, to reduce expense.For example, after the VLAN that the RB of TRILL network receives DRB specifies changed information, with
The RB is that the assigned vlan of AF changes, and at this moment, which can send Report message to DRB.Since the RB is with smaller
It sends interval and sends Report message to DRB, network convergence time can be shortened.
For example, Fig. 1 b are the application scenario diagram of the route renewing method of the embodiment of the present invention one.As shown in Figure 1 b, in STP
In the case of network and TRILL network mixed networking, host H belongs to VLAN1.It is assumed that AF old VLAN1 is the first route-bridge
RB1, due to failure or human configuration etc., if the first route-bridge RB1 changes non-AF from the AF of VLAN1（non-AF）,
DRB can receive Report message, can specifically be divided into following situations：
If situation one, the first route-bridge RB1 are changed to non-AF from the AF of VLAN1, but VLAN1 is not generated newly
AF, in this case, RB1 can send Report message to DRB and inform the variation of itself.
Situation two, the first route-bridge RB1 are changed to non-AF from the AF of VLAN1, and the new AF of VLAN1 are the second tunnel
By bridge RB2, in this case, RB1, RB2 can send Report message to DRB.
In situation two, if the DRB according to the AF status report messages, determines that the AF of the VLAN is needed from the
One route-bridge is switched to secondary route bridge, then the DRB can be sent out by the AF channels to the secondary route bridge
The specified message for being used to indicate and eliminating and inhibiting the time is sent, the AF of the VLAN is switched to the secondary route bridge.
Specifically, DRB can detect that the role of AF becomes in real time by parsing the Report message received from AF channels
Change, when DRB receives old AF（That is the first route-bridge）When being no longer the Report message of the AF of the VLAN, it can immediately pass through
New AF of the AF channels to the VLAN（That is secondary route bridge）It sends out specified（Appoint）Message, Appoint message is for referring to
Show that elimination inhibits the time, can make the inhibition time of the VLAN（inhibition timer）It is overtime immediately.DRB can will be protected
AF in the record deposited is revised as secondary route bridge from the first route-bridge, to which the AF of VLAN is switched to institute on DRB
State secondary route bridge.
If the RB as new AF receives the Appoint message from DRB, the inhibition time of the RB can surpass immediately
When, the new AF of the VLAN can be become and start to receive and dispatch the message of the VLAN.
The present embodiment, RB by AF channels to DRB report oneself whether or some VLAN AF, DRB can examine quickly
The variation for surveying AF states, improves TRILL-STP mixed networking scene lower network convergence rates.
Embodiment 2
Fig. 2 a are the flow chart of the route renewing method of the embodiment of the present invention two.Step tool identical as Fig. 1 a labels Fig. 2 a
There is identical meaning, the difference with a upper embodiment essentially consists in：As shown in Figure 2 a, before step 101, the routing update side
Method can also include：
Step 201 elects the DRB；
The AF channels, other described roads are established between other route-bridges of step 202, DRB and the TRILL network
It is the route-bridge in the TRILL network other than the DRB by bridge.
In one possible implementation, after step 101, if meeting situation two, disappeared according to AF state reports
Breath can determine that the AF of the VLAN needs to be switched to secondary route bridge from the first route-bridge, then DRB is believed by the AF
Road is sent to the secondary route bridge is used to indicate the step of eliminating the specified message for inhibiting the time, can specifically include：
Step 203, the parsing AF status report messages, obtain first route-bridge and the secondary route bridge
Information；
Step 204, by the AF channels, send the specified message to the secondary route bridge, it is described specified to disappear
Breath carries VLAN specify informations（TLV formats can be expressed as, that is, use Type, Length, Value format, VLAN specify informations
It is referred to as VLAN and specifies TLV）, the VLAN bitmaps of the VLAN specify informations（bit-map）Field is used to indicate to described
VLAN inhibits time time-out.
Fig. 2 b be the embodiment of the present invention two route renewing method in AF channels message format schematic diagram, such as Fig. 2 b institutes
Show, Extended Protocol such as RFC6325 may be used to realize in AF channels, the payload of AF channels（Payload）In, Type is to disappear
Type is ceased, needs IANA tissue one specific value of distribution, before unallocated, equipment vendors realize to the present invention
When, it can voluntarily determine the value；Length is message Value fields（That is words of the TLV other than Type and Length fields
Section）Length, VLANs Appointed Sub-TLV are VLAN specify informations.Such as：Define new RB channels [draft-ietf-
Trill-rbridge-channel], distribute a pair of channels agreement（Channel Protocol）Code：Appoint＆Report,
The information of the RB channels is only in specified VLAN（Designated VLAN, D-VLAN）Inside interact.It, should according to RFC6325
D-VLAN is specified by DRB, usually VLAN=1.VLAN specify informations can be carried in Appoint message（VLANs
Appointed Sub-TLV）, it is assumed that the VLAN bitmaps in the Sub-TLV（bit-map）Field set is effective, and reset is then
Ignore.
Fig. 2 c be the embodiment of the present invention two route renewing method in VLANs Appointed Sub-TLV message format
Schematic diagram, as shown in Figure 2 c, Type is type of message, need IANA tissue distribution one specific value, before unallocated,
Equipment vendors can voluntarily determine that the value, Length are message Value fields when being realized to the present invention（I.e. the TLV is removed
Field except Type and Length fields）Length, RESV are reserved field, and Start VLAN ID are all assigned vlans
The VLAN of intermediate value minimum, VLAN bit map are VLAN bitmap fields.Referring to Fig. 1 b, if the Appoint message that RB2 is received
In, the inhibition time of the VLAN bit map field sets position of VLANs Appointed Sub-TLV, corresponding VLAN1 should stand
I.e. overtime, recipient RB2 can be switched to the AF of the VLAN1 immediately.
VLANs Appointed Sub-TLV, sender RB are carried in Report message（RB1、RB2）It is the sub-TLV
Set position can correspond to the AF of the VLAN in middle VLAN bit map, and reset position can correspond to the non-AF of the VLAN.
The present embodiment, RB by AF channels to DRB report oneself whether or some VLAN AF, DRB can examine quickly
The variation for surveying AF states, improves TRILL-STP mixed networking scene lower network convergence rates.Further, DRB can pass through
It is the new AF of the VLAN that AF channels, which quickly specify certain RB, and can actively be eliminated by specified message and inhibit the time, realizes AF
It is switched fast, further increases TRILL-STP mixed networking scene lower network convergence rates.In addition, real by TRILL data Layers
Existing Fast Convergent mechanism, avoid in order to control layer bring additional complexity, reduce realization difficulty.
Embodiment 3
Fig. 3 is the flow chart of the route renewing method of the embodiment of the present invention three.As shown in figure 3, the route renewing method can
To include：
Step 301 passes through AF（It is specified to turn originator）Channel, to the DRB of the TRILL network（Specified route-bridge）It sends
AF status report messages, the AF channels are the route-bridge of the channel Mechanism establishing according to TRILL protocol and the DRB
Between message channel, the AF status report messages are used to indicate the first route-bridge by VLAN（Virtual LAN）AF become
More non-AF, the VLAN pass through STP（Spanning-Tree Protocol）Network insertion TRILL（Transparent interconnection of lots of links interconnect）Network.
Since the resistance for changing traditional ISIS agreements and HELLO agreements is very big, the embodiment of the present invention can not change AF
Specified flow.DRB specifies AF also according to the process defined in TRILL, such as：Transmission contains Appointed
The HELLO messages of Forwarders Sub-TLV are to specify the AF of some VLAN.In addition, the embodiment of the present invention may be used one
The new channels RB（Channel）That is AF channels complete being switched fast for AF.After DRB is elected, DRB and link-local
Other RB establish AF channels（Channel Session）, each AF to DRB send AF state reports（It can abbreviation Report）Disappear
Breath, report oneself whether or VLAN AF.DRB is responsible for detecting AF states.Report message is by AF according to the change of assigned vlan
Change and send on demand, just sends, can not be sent when unchanged, to reduce expense when changing.For example, TRILL network
After RB receives the VLAN specify informations of DRB, assigned vlan changes, which is sent with smaller transmission interval to DRB
Report message, so as to shorten convergence time.It is assumed that AF old VLAN1 is the first route-bridge RB1, due to failure or manually
The reasons such as configuration, if the first route-bridge RB1 changes non-AF from the AF of VLAN1（non-AF）, DRB can receive Report and disappear
Breath, can specifically be divided into following situations：
If situation one, the first route-bridge RB1 are changed to non-AF from the AF of VLAN1, but VLAN1 is not generated newly
AF, in this case, RB1 can send Report message to DRB and inform the variation of itself.
Situation two, the first route-bridge RB1 are changed to non-AF from the AF of VLAN1, and the new AF of VLAN1 are the second tunnel
By bridge RB2, in this case, RB1, RB2 can send Report message to DRB.
The present embodiment, RB by AF channels to DRB report oneself whether or some VLAN AF, DRB can examine quickly
The variation for surveying AF states, improves TRILL-STP mixed networking scene lower network convergence rates.
Embodiment 4
Fig. 4 is the flow chart of the route renewing method of the embodiment of the present invention four.Step identical as Fig. 3 labels Fig. 4 has
Identical meaning, the difference with a upper embodiment essentially consist in：As shown in figure 4, can be wrapped after the step 301 of a upper embodiment
It includes：
If the AF of step 401, the VLAN needs to be switched to secondary route bridge from the first route-bridge, described the
Two route-bridges receive to be used to indicate from the DRB by the AF channels eliminates the specified message for inhibiting the time.
Wherein, the specific message format of AF channels may refer to Fig. 2 b and its associated description in above-described embodiment two.AF
The message format of status report messages may refer to the associated description of the Report message in above-described embodiment two.DRB passes through solution
The Report message received from AF channels is analysed, the changing role of AF can be detected in real time, when DRB receives old AF（I.e. first
Route-bridge）When being no longer the Report message of the AF of the VLAN, new AF of the AF channels to VLAN can be immediately passed through（I.e.
Two route-bridges）It sends out specified（Appoint）Message, Appoint message are used to indicate elimination and inhibit the time, can make this
The inhibition time of VLAN（inhibition timer）It is overtime immediately.
Step 402, secondary route bridge are eliminated and inhibit the time and by the AF of the VLAN from institute according to the specified message
It states the first route-bridge and is switched to the secondary route bridge.
Wherein, the secondary route bridge of specified message is received, the AF functions of itself can be opened, thus by the VLAN
AF be switched to the secondary route bridge.Such as：It, should if the RB as new AF receives the Appoint message from DRB
The inhibition time of RB can be overtime immediately, sets the position for identifying AF to " 1 ", which can become the new AF of the VLAN and beginning
Receive and dispatch the message of the VLAN.
In one possible implementation, step 401 can specifically include：Secondary route bridge passes through the AF channels
The specified message is received from the DRB, the specified message carries VLAN specify informations（TLV formats can be expressed as, also may be used
TLV is specified with referred to as VLAN）, the VLAN bitmap fields of the VLAN specify informations, which are used to indicate, inhibits the time super the VLAN
When.
Wherein, the message format of message is specified to may refer to the phase of Appoint message and Fig. 2 c in above-described embodiment two
Close description.VLAN specifies the VLAN bitmap fields of TLV to may refer to the VLANs Appointed Sub- in above-described embodiment two
The associated description of the VLAN bit map of TLV.
If the RB as new AF receives the Appoint message from DRB, according to VLANs Appointed Sub-
The inhibition time of VLAN the bit map, the RB of TLV can be overtime immediately, and can become the new AF of the VLAN and start transmitting-receiving should
The message of VLAN.
The present embodiment, RB by AF channels to DRB report oneself whether or some VLAN AF, DRB can examine quickly
The variation for surveying AF states, improves TRILL-STP mixed networking scene lower network convergence rates.Further, DRB can pass through
It is the new AF of the VLAN that AF channels, which quickly specify certain RB, and can actively be eliminated by specified message and inhibit the time, realizes AF
It is switched fast, further increases TRILL-STP mixed networking scene lower network convergence rates.In addition, real by TRILL data Layers
Existing Fast Convergent mechanism, avoid in order to control layer bring additional complexity, reduce realization difficulty.
Embodiment 5
Fig. 5 is the structure diagram of the routing device of the embodiment of the present invention five, as shown in figure 5, the routing device may include：
Receiving unit 51 turns originator AF channels for passing through to specify, AF state reports is received from the route-bridge of TRILL network
Message is accused, the AF channels are according to disappearing between the route-bridge and the DRB of the channel Mechanism establishing of TRILL protocol
Cease channel, the AF status report messages be used to indicate the first route-bridge be changed to by the AF of virtual LAN VLAN it is non-
AF, the VLAN interconnect TRILL network by Spanning-Tree Protocol STP network insertion transparent interconnection of lots of links.
Specifically, the embodiment of the present invention can not change the specified flow of AF.DRB can also be according to defined in TRILL
Process specifies AF, such as：The HELLO messages containing Appointed Forwarders Sub-TLV are sent to specify some VLAN
AF.After DRB is elected, DRB and link-local（That is STP networks）Other RB connected are according to the letter of TRILL protocol
Road Mechanism establishing AF channels（Channel）, each AF to DRB send AF state reports（It can abbreviation Report）Message, report
Oneself whether or VLAN AF.Report message is sent by AF according to the variation of assigned vlan on demand, is just sent out when changing
It send, can not be sent when unchanged, to reduce expense.The receiving unit 51 of DRB can receive the RB of the variation of assigned vlan
The AF status report messages of transmission detect AF states.DRB, can be real-time by parsing the Report message received from AF channels
Detect the changing role of AF.
The present embodiment, routing device by AF channels to DRB report oneself whether or some VLAN AF, DRB's connects
AF status report messages can be received by receiving unit, to quickly detect the variation of AF states, improve TRILL-STP mixing groups
Net scene lower network convergence rate.
Embodiment 6
Fig. 6 is the structure diagram of the routing device of the embodiment of the present invention six, and the identical component of Fig. 6 and Fig. 5 labels has phase
Same meaning, difference lies in as shown in fig. 6, the routing device can also include with a upper embodiment：
If transmission unit 53 determines that the AF of the VLAN is needed from first for according to the AF status report messages
Route-bridge is switched to secondary route bridge, then is used to indicate elimination to secondary route bridge transmission by the AF channels
The specified message for inhibiting the time, the secondary route bridge is switched to by the AF of the VLAN.
In a kind of possible embodiment, which can also include：
Unit 61 is elected, for being DRB by routing device election；
Path Setup unit 63, for establishing the AF channels, institute between other route-bridges of the TRILL network
It is the route-bridge in the TRILL network other than the DRB to state other route-bridges.
In a kind of possible embodiment, transmission unit 53 may include：
Parsing subunit 531 obtains first route-bridge and described for parsing the AF status report messages
The information of two route-bridges；
Transmission sub-unit 533, for by the AF channels, the specified message to be sent to the secondary route bridge,
The specified message carries VLAN specify informations, and the VLAN bitmap fields of the VLAN specify informations are used to indicate to the VLAN
Inhibit time time-out.
Wherein, the specific message format of AF channels may refer to Fig. 2 b and its associated description in above-described embodiment two.AF
The message format of status report messages may refer to the associated description of the Report message in above-described embodiment two.Specified message
Message format may refer to the associated description of Appoint message and Fig. 2 c in above-described embodiment two.
The present embodiment, routing device by AF channels to DRB report oneself whether or some VLAN AF, DRB's connects
AF status report messages can be received by receiving unit, to quickly detect the variation of AF states, improve TRILL-STP mixing groups
Net scene lower network convergence rate.Further, it is to be somebody's turn to do that the transmission unit of DRB quickly specifies certain routing device by AF channels
AF new VLAN, and can actively be eliminated by specified message and inhibit the time, it realizes that AF is switched fast, further improves
TRILL-STP mixed networking scene lower network convergence rates.In addition, the Fast Convergent mechanism realized by TRILL data Layers, keeps away
Exempt from layer in order to control and bring additional complexity, reduces realization difficulty.
Embodiment 7
Fig. 7 is the structure diagram of the routing device of the embodiment of the present invention seven, as shown in fig. 7, the routing device may include：
Transmission unit 71 turns originator AF channels, to the specified route-bridge DRB of the TRILL network for passing through to specify
AF status report messages are sent, the AF channels is according to the route-bridge of the channel Mechanism establishing of TRILL protocol and institutes
The message channel between DRB is stated, the AF status report messages are used to indicate the first route-bridge by virtual LAN VLAN
AF is changed to non-AF, and the VLAN interconnects TRILL network by Spanning-Tree Protocol STP network insertion transparent interconnection of lots of links.
Specifically, the embodiment of the present invention can not change the specified flow of AF.DRB can also be according to defined in TRILL
Process specifies AF, such as：The HELLO messages containing Appointed Forwarders Sub-TLV are sent to specify some VLAN
AF.After DRB is elected, DRB and link-local（That is STP networks）Other RB connected are according to the letter of TRILL protocol
Road Mechanism establishing AF channels（Channel）, the transmission unit 71 of routing device can be to DRB transmission AF state reports（It can letter
Claim Report）Message, report oneself whether or VLAN AF.Report message can also be by AF according to the variation of assigned vlan
And send on demand, it just sends, can not be sent when unchanged, to reduce expense when changing.DRB is according to the AF shapes received
State report message detects AF states.DRB can detect AF's in real time by parsing the Report message received from AF channels
Changing role.Referring to the situation one in above-described embodiment, old AF（That is the first route-bridge）Transmission unit 71 can be to DRB
Send Report message.Referring to the situation two in above-described embodiment, old AF（That is the first route-bridge）With new AF（I.e. second
Route-bridge）Transmission unit 71 can to DRB send Report message.In situation two, when DRB receives the first routing network
When bridge is no longer the Report message of the AF of the VLAN, AF channels can be immediately passed through and sent out to the secondary route bridge of the VLAN
It is specified（Appoint）Message, Appoint message are used to indicate elimination and inhibit the time, can make the inhibition time of the VLAN
（inhibition timer）It is overtime immediately.
The present embodiment, the transmission unit of routing device by AF channels to DRB report oneself whether or some VLAN
AF, DRB can quickly detect the variation of AF states, improve TRILL-STP mixed networking scene lower network convergence rates.
Embodiment 8
Fig. 8 is the structure diagram of the routing device of the embodiment of the present invention eight, and the identical component of Fig. 8 and Fig. 7 labels has phase
Same meaning, difference lies in as shown in figure 8, the routing device can also include with a upper embodiment：
Receiving unit 73, if the AF for the VLAN needs to be switched to secondary route bridge from the first route-bridge,
It then receives to be used to indicate from the DRB by the AF channels and eliminates the specified message for inhibiting the time；
Unit 75 is eliminated, inhibits the time and by the AF of the VLAN from described for according to the specified message, eliminating
One route-bridge is switched to the secondary route bridge.
Specifically, if routing device is as new AF（That is secondary route bridge）, then receiving unit 73, which can receive, comes
From the Appoint message of DRB, then eliminating unit 75 can to inhibit the time overtime immediately, and can be by the AF of itself
Function is opened, and the AF of the VLAN is switched to the secondary route bridge, in this way, secondary route bridge can become the VLAN
New AF and the message for starting to receive and dispatch the VLAN.
In a kind of possible embodiment, receiving unit 73 specifically can be used for：By the AF channels from the DRB
The specified message is received, the specified message carries VLAN specify informations, the VLAN bitmap fields of the VLAN specify informations
It is used to indicate and time time-out is inhibited to the VLAN.
Wherein, the specific message format of AF channels may refer to Fig. 2 b and its associated description in above-described embodiment two.AF
The message format of status report messages may refer to the associated description of the Report message in above-described embodiment two.Specified message
Message format may refer to the associated description of Appoint message and Fig. 2 c in above-described embodiment two.
The present embodiment, the transmission unit of routing device by AF channels to DRB report oneself whether or some VLAN
AF, DRB can quickly detect the variation of AF states, improve TRILL-STP mixed networking scene lower network convergence rates.Into one
Step ground, it is the new AF of the VLAN, the routing of the AF new as the VLAN that DRB can quickly specify certain routing device by AF channels
After equipment receives the specified message of DRB, it can eliminate and inhibit the time, realize that AF is switched fast, improve TRILL-STP mixing groups
Net scene lower network convergence rate.In addition, the Fast Convergent mechanism realized by TRILL data Layers avoid in order to control layer bring volume
Outer complexity reduces realization difficulty.
Embodiment 9
Fig. 9 is the structure diagram of the routing device of the embodiment of the present invention nine.The routing device can have calculating energy
The host server of power, personal computer PC or portable portable computer or terminal etc..The specific embodiment of the invention
The specific implementation of calculate node is not limited.
The routing device includes processor (processor) 1110, communication interface (Communications
Interface) 1120, memory (memory array) 1130 and bus 1140.Wherein, processor 1110, communication interface
1120 and memory 1130 mutual communication is completed by bus 1140.
Communication interface 1120 with network element for communicating, and wherein network element includes such as Virtual Machine Manager center, shared storage.
Processor 1110 is for executing program.Processor 1110 may be a central processor CPU or special collection
At circuit ASIC（Application Specific Integrated Circuit）, or be arranged to implement the present invention
One or more integrated circuits of embodiment.
Memory 1130 is for storing file.Memory 1130 may include high-speed RAM memory, it is also possible to further include non-
Volatile memory (non-volatile memory), for example, at least a magnetic disk storage.Memory 1130 can also be to deposit
Memory array.Memory 1130 is also possible to by piecemeal, and described piece can be combined into virtual volume by certain rule.
In a kind of possible embodiment, above procedure can be the program code for including computer-managed instruction.The journey
Sequence is particularly used in：
Specified route-bridge DRB turns originator AF channels by specified, and AF state reports are received from the route-bridge of TRILL network
Message is accused, the AF channels are according to disappearing between the route-bridge and the DRB of the channel Mechanism establishing of TRILL protocol
Channel is ceased, the AF status report messages are used to indicate the first route-bridge and are changed to non-AF by the AF of virtual LAN VLAN,
The VLAN interconnects TRILL network by Spanning-Tree Protocol STP network insertion transparent interconnection of lots of links.
In a kind of possible embodiment, the specified route-bridge DRB turns originator AF channels by specified, from
The route-bridge of TRILL network receives AF status report messages, including：
If the DRB according to the AF status report messages, determines that the AF of the VLAN is needed from the first route-bridge
It is switched to secondary route bridge, then the DRB is used to indicate elimination by the AF channels to secondary route bridge transmission
The specified message for inhibiting the time, the secondary route bridge is switched to by the AF of the VLAN.
In a kind of possible embodiment, the specified route-bridge DRB turns originator AF channels by specified, from
Before the route-bridge of TRILL network receives AF status report messages, including：
Elect the DRB；
The AF channels, other described routing networks are established between the DRB and other route-bridges of the TRILL network
Bridge is the route-bridge other than the DRB in the TRILL network.
In a kind of possible embodiment, the DRB is sent to the secondary route bridge by the AF channels and is used
The specified message for inhibiting the time is eliminated in instruction, including：
The AF status report messages are parsed, the information of first route-bridge and the secondary route bridge is obtained；
By the AF channels, the specified message is sent to the secondary route bridge, the specified message carries
VLAN specify informations, the VLAN bitmap fields of the VLAN specify informations are used to indicate inhibits time time-out to the VLAN.
The program specifically can be additionally used in：
Turn originator AF channels by specified, sending AF state reports to the specified route-bridge DRB of the TRILL network disappears
Breath, the AF channels are logical according to the message between the route-bridge and the DRB of the channel Mechanism establishing of TRILL protocol
Road, the AF status report messages are used to indicate the first route-bridge and are changed to non-AF by the AF of virtual LAN VLAN, described
VLAN interconnects TRILL network by Spanning-Tree Protocol STP network insertion transparent interconnection of lots of links.
In a kind of possible embodiment, turn originator AF channels by specified, to the TRILL network specified circuit by
Bridge DRB sends AF status report messages, including：
If the AF of the VLAN needs to be switched to secondary route bridge, the secondary route net from the first route-bridge
Bridge receives to be used to indicate from the DRB by the AF channels eliminates the specified message for inhibiting the time；
The secondary route bridge is eliminated according to the specified message and inhibits the time and the AF of the VLAN is switched to institute
State secondary route bridge.
In a kind of possible embodiment, when being used to indicate elimination inhibition from DRB receptions by the AF channels
Between specified message, including：
The specified message is received from the DRB by the AF channels, the specified message carries VLAN specify informations,
The VLAN bitmap fields of the VLAN specify informations are used to indicate inhibits time time-out to the VLAN.
Those of ordinary skill in the art may realize that each exemplary cell in embodiment described herein and algorithms
Step can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions actually with hardware also
It is software form to realize, depends on the specific application and design constraint of technical solution.Professional technician can be directed to
It is specific to realize described function using different methods is selected, but this realization is it is not considered that the model beyond the present invention
It encloses.
If realizing the function and when sold or used as an independent product in the form of computer software,
To a certain extent it is believed that all or part of technical scheme of the present invention（Such as the part that contributes to existing technology）It is
It embodies in form of a computer software product.The computer software product is generally stored inside computer-readable storage medium
In, including some instructions use is so that computer equipment（Can be personal computer, server or network equipment etc.）It executes
The all or part of step of various embodiments of the present invention method.And storage medium above-mentioned includes USB flash disk, mobile hard disk, read-only storage
Device（ROM, Read-Only Memory）, random access memory（RAM, Random Access Memory）, magnetic disc or light
The various media that can store program code such as disk.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of route renewing method, which is characterized in that including：
Specified route-bridge DRB turns originator AF channels by specified, and receiving AF state reports from the route-bridge of TRILL network disappears
Breath, the AF channels are logical according to the message between the route-bridge and the DRB of the channel Mechanism establishing of TRILL protocol
Road, the AF status report messages are used to indicate the first route-bridge and are changed to non-AF by the AF of virtual LAN VLAN, described
VLAN interconnects TRILL network by Spanning-Tree Protocol STP network insertion transparent interconnection of lots of links；
If the DRB according to the AF status report messages, determines that the AF of the VLAN needs to switch from the first route-bridge
For secondary route bridge, then the DRB sends to be used to indicate by the AF channels to the secondary route bridge eliminates inhibition
The AF of the VLAN is switched to the secondary route bridge by the specified message of time.
2. route renewing method according to claim 1, which is characterized in that the specified route-bridge DRB passes through specified
Turn originator AF channels, before receiving AF status report messages from the route-bridge of TRILL network, including：
Elect the DRB；
The AF channels are established between the DRB and other route-bridges of the TRILL network, other described route-bridges are
Route-bridge in the TRILL network other than the DRB.
3. route renewing method according to claim 1 or 2, which is characterized in that the DRB is by the AF channels to institute
It states secondary route bridge and sends the specified message for being used to indicate and eliminating and inhibiting the time, including：
The AF status report messages are parsed, the information of first route-bridge and the secondary route bridge is obtained；
By the AF channels, the specified message is sent to the secondary route bridge, the specified message carries VLAN and refers to
Determine information, the VLAN bitmap fields of the VLAN specify informations are used to indicate the inhibition time time-out to the VLAN.
4. a kind of route renewing method, which is characterized in that including：
Turn originator AF channels by specified, AF status report messages are sent to the specified route-bridge DRB of TRILL network, it is described
AF channels are according to the message channel between the route-bridge and the DRB of the channel Mechanism establishing of TRILL protocol, the AF shapes
State report message is used to indicate the first route-bridge and is changed to non-AF by the AF of virtual LAN VLAN, and the VLAN passes through generation
Tree protocol STP network insertion transparent interconnection of lots of links interconnect TRILL network；
If the AF of the VLAN needs to be switched to secondary route bridge from the first route-bridge, the secondary route bridge is logical
It crosses the AF channels and receives the specified message for being used to indicate elimination and inhibiting the time from the DRB；
The secondary route bridge is eliminated and inhibits the time and the AF of the VLAN is switched to described the according to the specified message
Two route-bridges.
5. route renewing method according to claim 4, which is characterized in that the secondary route bridge is believed by the AF
Road, which receives to be used to indicate from the DRB, eliminates the specified message for inhibiting the time, including：
The secondary route bridge receives the specified message by the AF channels from the DRB, and the specified message carries
VLAN specify informations, the VLAN bitmap fields of the VLAN specify informations are used to indicate the inhibition time time-out to the VLAN.
6. a kind of routing device, which is characterized in that including：
Receiving unit, turns originator AF channels for passing through to specify, and receiving AF state reports from the route-bridge of TRILL network disappears
Breath, the AF channels be according to the message channel between the route-bridge and DRB of the channel Mechanism establishing of TRILL protocol,
The AF status report messages are used to indicate the first route-bridge and are changed to non-AF, the VLAN by the AF of virtual LAN VLAN
TRILL network is interconnected by Spanning-Tree Protocol STP network insertion transparent interconnection of lots of links；
If transmission unit determines that the AF of the VLAN is needed from the first routing network for according to the AF status report messages
Bridge is switched to secondary route bridge, then when being used to indicate elimination inhibition to secondary route bridge transmission by the AF channels
Between specified message, the AF of the VLAN is switched to the secondary route bridge.
7. routing device according to claim 6, which is characterized in that further include：
Unit is elected, for being DRB by routing device election；
Path Setup unit, for establishing the AF channels between other route-bridges of the TRILL network, it is described other
Route-bridge is the route-bridge other than the DRB in the TRILL network.
8. the routing device described according to claim 6 or 7, which is characterized in that the transmission unit includes：
Parsing subunit obtains first route-bridge and the secondary route for parsing the AF status report messages
The information of bridge；
Transmission sub-unit, it is described specified for by the AF channels, the specified message to be sent to the secondary route bridge
Message carries VLAN specify informations, when the VLAN bitmap fields of the VLAN specify informations are used to indicate the inhibition to the VLAN
Between time-out.
9. a kind of routing device, which is characterized in that including：
Transmission unit turns originator AF channels for passing through to specify, AF states is sent to the specified route-bridge DRB of TRILL network
Report message, the AF channels are according to the message between the route-bridge and the DRB of the channel Mechanism establishing of TRILL protocol
Channel, the AF status report messages are used to indicate the first route-bridge and are changed to non-AF, institute by the AF of virtual LAN VLAN
It states VLAN and interconnects TRILL network by Spanning-Tree Protocol STP network insertion transparent interconnection of lots of links；
Receiving unit passes through if the AF for the VLAN needs to be switched to secondary route bridge from the first route-bridge
The AF channels, which receive to be used to indicate from the DRB, eliminates the specified message for inhibiting the time；
Unit is eliminated, for according to the specified message, eliminating and inhibiting the time and the AF of the VLAN is switched to described second
Route-bridge.
10. routing device according to claim 9, which is characterized in that the receiving unit is specifically used for：Pass through the AF
Channel receives the specified message from the DRB, and the specified message carries VLAN specify informations, the VLAN specify informations
VLAN bitmap fields are used to indicate the inhibition time time-out to the VLAN.
Priority Applications (2)
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| CN201310396411.2A CN104426777B (en) | 2013-09-03 | 2013-09-03 | Route renewing method and routing device |
| PCT/CN2014/084059 WO2015032260A1 (en) | 2013-09-03 | 2014-08-11 | Route updating method and routing device |
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| CN105991372B (en) * | 2015-04-20 | 2020-04-03 | 杭州迪普科技股份有限公司 | Link detection method and device |
| CN106100881A (en) * | 2016-06-13 | 2016-11-09 | 迈普通信技术股份有限公司 | A kind of transparent multilink interconnection TRILL network fault handling method and device |
| CN106506313B (en) * | 2016-11-25 | 2019-08-23 | 武汉长光科技有限公司 | A kind of cost effective method improving route bridging data forwarding performance |
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| CN102611566A (en) * | 2011-12-16 | 2012-07-25 | 华为技术有限公司 | Method and device for recovering customer service |
| CN102970231A (en) * | 2012-11-20 | 2013-03-13 | 中兴通讯股份有限公司 | Multicast flow forwarding implementation method and routing bridge (RB) |
| CN103200083A (en) * | 2012-01-10 | 2013-07-10 | 华为技术有限公司 | Appointed forwarder (AF) drifting processing method and device |
| CN103379008A (en) * | 2012-04-13 | 2013-10-30 | 华为技术有限公司 | Method and apparatus for changing appointed forwarder |
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| US9806906B2 (en) * | 2010-06-08 | 2017-10-31 | Brocade Communications Systems, Inc. | Flooding packets on a per-virtual-network basis |
| CN102223303A (en) * | 2011-06-14 | 2011-10-19 | 杭州华三通信技术有限公司 | Load equilibrium method based on transparent interconnection of lots of links (TRILL) and routing bridge (RB) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611566A (en) * | 2011-12-16 | 2012-07-25 | 华为技术有限公司 | Method and device for recovering customer service |
| CN103200083A (en) * | 2012-01-10 | 2013-07-10 | 华为技术有限公司 | Appointed forwarder (AF) drifting processing method and device |
| CN103379008A (en) * | 2012-04-13 | 2013-10-30 | 华为技术有限公司 | Method and apparatus for changing appointed forwarder |
| CN102970231A (en) * | 2012-11-20 | 2013-03-13 | 中兴通讯股份有限公司 | Multicast flow forwarding implementation method and routing bridge (RB) |
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