CN106375212A - Method and device for processing RSVP message - Google Patents
Method and device for processing RSVP message Download PDFInfo
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- CN106375212A CN106375212A CN201610834562.5A CN201610834562A CN106375212A CN 106375212 A CN106375212 A CN 106375212A CN 201610834562 A CN201610834562 A CN 201610834562A CN 106375212 A CN106375212 A CN 106375212A
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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
- H04L45/50—Routing or path finding of packets in data switching networks using label swapping, e.g. multi-protocol label switch [MPLS]
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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
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/36—Flow control; Congestion control by determining packet size, e.g. maximum transfer unit [MTU]
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- Computer Networks & Wireless Communication (AREA)
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Abstract
Embodiments of the invention provide a method and a device for processing an RSVP message. The method comprises the following steps of monitoring a maximum transmission unit MTU value of an outgoing interface of an RSVP node; and sending the RSVP message carrying record route object RRO information to a next-hop node when the MTU value of the outgoing interface of the RSVP node is greater than a transmission threshold of the RSVP message. According to the embodiments of the invention, a function of recording route information of a CRLSP TE tunnel can be timely recovered, and functions of hot standby tunnel, timing re-optimization, FRR and the like are realized.
Description
Technical field
The application is related to communication technical field, more particularly to a kind of rsvp message treatment method and device.
Background technology
Mpls (multi-protocol label switching, multiprotocol label switching) te (traffic
Engineering, traffic engineering), combine mpls technology and traffic engineering, by being established to the lsp tunnel of specified path
Carry out resource reservation, make network traffics get around congested node, reach the purpose of balance network traffic.
In current te networking, generally adopt crlsp (constraint-based routed label switched
Paths, the label switched path based on CR- LDP) build te tunnel, and adopt rsvp (resource reservation
Protocol, RSVP) supporting mpls te, in rsvp, rsvp message has special in transmitting procedure-te
Object, referred to as rro (record route obeject records routing object), rro can be used for recording the road that rsvp message is passed through
The information in footpath.Often through a rsvp node, the rro being carried is saved in the node of current process to rsvp message, that is, originally
Ground node, and the information of local node is added in rro, the rro after updating is carried to the next-hop node of rsvp message.This
Sample, rsvp message each node through crlsp te tunnel can perceive the overall condition in this tunnel.Namely tunnel appoint
What node can learn the complete path information in this tunnel, such that it is able to realize the foundation in hot standby tunnel, timing re-optimization,
The functions such as frr (fast reroute, quick heavy-route).
In rsvp-te, after the function of tunnel open record route, rsvp node can send and carry rro information
Rsvp message carrys out bang path information, if however, encapsulation rro information after rsvp message size be more than tunnel in certain section
During mtu (maximum transmission unit, the MTU) of outgoing interface of point, in order to not affect building of tunnel
Stand and basic forwarding capability, this node can be sent a notification message to the head node in tunnel by rsvp agreement, and head node receives this
The rro information carrying in rsvp message can be deleted, then a hop node sends and do not carry rro information still further below after notification message
Rsvp message, realizes the foundation in tunnel and basic forwarding capability with reserved resource.
As can be seen that during setting up crlsp te tunnel, if the mtu value of the outgoing interface of some node can not
Meet the transmission unit size needed for rsvp message carrying rro information, then the crlsp te tunnel set up cannot transmit and carry
There is the rsvp message of rro information, the function of record path information cannot be realized in therefore this tunnel, and the node in this road also just cannot
Perceive the routing information of whole link, thus also just cannot realize hot standby tunnel, timing re-optimization and frr etc. to need to set up
Function on record path information.
Content of the invention
In view of the above problems, the embodiment of the present application provides a kind of rsvp message treatment method and device.
The embodiment of the present application discloses a kind of rsvp message treatment method, is applied to the rsvp section in crlsp te tunnel
Point, comprising:
Monitor the MTU mtu value of the outgoing interface of described rsvp node；
When the mtu value of the outgoing interface of described rsvp node is more than or equal to the propagation threshold of rsvp message, down hop section
Point sends the rsvp message carrying record routing object rro information.
On the other hand, the embodiment of the present application discloses a kind of rsvp message processing apparatus, is applied in crlsp te tunnel
Rsvp node, comprising:
Monitoring modular, for monitoring the MTU mtu value of the outgoing interface of described rsvp node；
First sending module, for the outgoing interface in described rsvp node mtu value be more than or equal to rsvp message transmission
During threshold value, down hop node sends the rsvp message carrying record routing object rro information.
The embodiment of the present application includes advantages below:
The embodiment of the present application is passed through to monitor the mtu value of the outgoing interface of rsvp node, in the outgoing interface finding rsvp node
During MTU mtu value, then this rsvp node can send to its next-hop node and carry record routing object rro information
Rsvp message.As a result, next-hop node can receive the rsvp message with rro information, so that crlsp
Rsvp node in the whole piece path in te tunnel can receive the rsvp message carrying rro information, and then makes
When the mtu value of the outgoing interface of rsvp node disclosure satisfy that the transmission unit size needed for rsvp message carrying rro information, permissible
Recover the function of the record path information in crlsp te tunnel in time, and realize hot standby tunnel, timing re-optimization and frr
Etc. function.
Brief description
Fig. 1 shows a kind of flow chart of steps of rsvp message treatment method of the one of embodiment of the application；
Fig. 2 is a kind of schematic network structure in crlsp te tunnel of the application；
Fig. 3 is a kind of flow chart of steps of the application application example；
Fig. 4 is the flow chart of steps of another kind of application example of the application；
Fig. 5 is a kind of flow chart of steps of rsvp message treatment method of another embodiment of the application；
Fig. 6 is the hardware of the rsvp node that the rsvp message processing apparatus shown in the application one exemplary embodiment are applied
Structural representation；
Fig. 7 is a kind of structured flowchart of rsvp message processing apparatus of the one of embodiment of the application.
Specific embodiment
Understandable for enabling the above-mentioned purpose of the application, feature and advantage to become apparent from, below in conjunction with the accompanying drawings and specifically real
Mode of applying is described in further detail to the application.
The application, can be in outgoing interface in order to the function of the timely record path information recovering crlsp te tunnel
Mtu value can not meet on the node of transmission unit size needed for rsvp message carrying rro information, monitor this node go out to connect
The mtu value of mouth, increases to, in the mtu value of the outgoing interface of this node, the biography that disclosure satisfy that needed for the rsvp message carrying rro information
During defeated cell size, on this node rsvp message is encapsulated with rro information, and the rsvp of rro information will be carried after encapsulation
Message sends to next-hop node.So, when next-hop node receives the rsvp message with rro information, also can be in rsvp
Message adds the routing information of itself, so that the mtu value in the outgoing interface of rsvp node disclosure satisfy that and carries rro information
During transmission unit size needed for rsvp message, the function of the record path information in crlsp te tunnel can be recovered in time, enter
And the functions such as hot standby tunnel, timing re-optimization and frr can be realized.
With reference to Fig. 1, show a kind of flow chart of steps of rsvp message treatment method of the one of embodiment of the application,
Methods described is applied to the rsvp node in crlsp te tunnel, and methods described specifically may include steps of:
Step 101, the MTU mtu value of the outgoing interface of the described rsvp node of monitoring；
Step 102, described rsvp node outgoing interface mtu value be more than or equal to rsvp message propagation threshold when, to
Next-hop node sends the rsvp message carrying record routing object rro information.
The embodiment of the present application is applicable to any rsvp node in crlsp te tunnel, and described rsvp node is specifically permissible
The routing device in crlspte tunnel arbitrarily can be realized for the router (router) in the Internet, switch etc..With reference to Fig. 2,
Show a kind of schematic network structure in crlsp te tunnel of the application, wherein rsvp node specifically can include router
Routera, routerb, routerc and routerd.The embodiment of the present application be applicable to routera, routerb, routerc,
Any one or more nodes in routerd.
In a particular application, rsvp message mainly can include path message and resv message.Wherein, path message by send out
Send node along the transmission direction transmission of data message, storing path state on all nodes on the way.Resv message is by receiving section
Point sends along the direction contrary with data-message transmission, all nodes on the way carries out resource reservation, and creates and safeguard pre-
Stay state.In network structure shown in for example in Fig. 2 it is assumed that path in crlsp te tunnel is routera-routerb-
Routerc-routerd, that is, data message is transmitted along routera-routerb-routerc-routerd direction, false
If opening the record routing function in this tunnel, then head node routera down hop node routerb transmission can carry rro letter
The path message of breath, after routerb receives path message, after adding the routing information of itself in path message, by path
Message is sent to next-hop node routerc, so until tail node routerd receives the path message carrying rro information.
Afterwards, routerd can send to its next-hop node routerc along the direction contrary with data-message transmission and carry rro information
Resv message, routerc sends to routerb and carries the resv message of rro information, until head node routera receives
To the resv message carrying rro information.
In actual applications, as shown in Fig. 2 taking create and carry the process in crlsp te tunnel of rro information as a example.Assume
Routerb receives the path message carrying rro information of routera transmission, and routerb completes to this path Message processing
After need to be sent to routerc from outgoing interface ge1/0/2, but now the mtu value of the outgoing interface ge1/0/2 of routerb can not
Meet the transmission unit size needed for path message carrying rro information, then routerb can send a notice to routera
Message, can delete the rro information in path message after routera receives this notification message, and again send out to routerb
Send the path message not carrying rro information, thus, create the crlsp te tunnel tunnel1 after success and believe without rro
Cease, namely tunnel1 does not have the function of record path information.
After crlsp te tunnel building completes, head node routera can periodically send path message to detect tunnel
The Link State in road, however, once the tunnel set up is without rro information, head node will periodically send without rro letter
The path message of breath, even if the mtu value of the outgoing interface ge1/0/2 of routerb changes, increases to meet and carries rro
The transmission unit size needed for path message of information, this crlsp te tunnel tunnel1 does not still have record path information
Function.
So that crlsp te tunnel tunnel1 disclosure satisfy that, in the outgoing interface of routerb, the path carrying rro information
During transmission unit size needed for message, the function of tunnel1 record path information can be recovered in time, the embodiment of the present application is supervised
Survey the mtu value of the outgoing interface of rsvp node in crlsp te tunnel, be more than or equal in the mtu value of the outgoing interface of described rsvp node
During the propagation threshold of rsvp message, down hop node sends the rsvp message carrying record routing object rro information.Wherein,
The propagation threshold of described rsvp message specifically can refer to transmit the minimum mtu value of the rsvp message needs carrying rro information.rsvp
The mtu value of the outgoing interface of node is more than or equal to the propagation threshold of rsvp message, specifically can refer to the mtu of the outgoing interface of rsvp node
Value is more than or equal to transmission and carries the minimum mtu value that this rsvp message of rro information needs.Thus, once finding crlsp te
In tunnel, the outgoing interface of each node can transmit the rsvp message carrying rro information, you can recovers tunnel record path in time
The function of information.
Specifically, when the mtu value of the described outgoing interface in described rsvp node is more than or equal to the propagation threshold of rsvp message,
The step sending the rsvp message carrying record routing object rro information to downstream node, may include that
Step s11, described rsvp node outgoing interface mtu value be more than or equal to rsvp message propagation threshold when, if
Do not carry rro information in the rsvp message that described rsvp node receives, then encapsulate rro information in described rsvp message；
Step s12, down hop node send the rsvp message after encapsulation.
Alternatively, methods described can also comprise the steps:
When the mtu value of the outgoing interface of described rsvp node is less than the propagation threshold of rsvp message, if described rsvp node
Carry rro information in the rsvp message receiving, then delete the rro information in described rsvp message, down hop node sends
Do not carry the rsvp message of rro information.
Application example one
Still, with reference to the flow chart of steps shown in Fig. 3, as follows the application is described in detail by an application example taking Fig. 2 as a example
Embodiment implement process.
Assume that routerb receives the path message carrying rro information of routera transmission, routerb is to this path
Need after the completion of Message processing to be sent to routerc from outgoing interface ge1/0/2, but the outgoing interface ge1/0/2 of now routerb
Mtu value be less than the propagation threshold of rsvp message, namely less than carrying the minimum mtu value needed for path message of rro information, then
Routerb can directly delete the rro information in described path message, and down hop node routerc sends and do not carry rro information
Path message, and no longer send a notification message to head node routera, routerc receives this and do not carry rro information
After path message, also send, to its next-hop node routerd, the path message not carrying rro information.Afterwards, routerd
Send the resv message not carrying rro information to its next-hop node routerc, so, until head node routera receives
Do not carry the resv message of rro information, now, crlsp te tunnel tunnel2 is successfully established, and, tunnel2 without
Rro information, namely tunnel2 do not have the function of record path information.
In a kind of alternative embodiment of the application, methods described can also include: in the outgoing interface of described rsvp node
Mtu value be less than rsvp message propagation threshold when, the reservation state block of described rsvp node records described rsvp message
Propagation threshold；
The step of the described MTU mtu value of outgoing interface monitoring described rsvp node, specifically may include that
Read the biography of the rsvp message in the current mtu value of the outgoing interface of described rsvp node and described reservation state block
Defeated threshold value, to judge whether described current mtu value is more than or equal to the propagation threshold of rsvp message.
Specifically, when routerb receive routera transmission carry rro information path message when, routerb
The mtu value of outgoing interface ge1/0/2 cannot meet the minimum mtu value of this path message needs, then can be in the rsb of routerb
In (reservation state block, reservation state block), record carries the minimum that the path message of rro information needs
Mtu value, then sets up the crlsp te tunnel tunnel2 without rro information.
Next, can continue to monitor the mtu value of the outgoing interface of each rsvp node in tunnel1, and head node routera
The path message not carrying rro information can periodically be sent, do not carry rro information when what routerb received routera transmission
Path message when, read taking of recording in the current mtu value of outgoing interface ge1/0/2 of routerb and the rsb of routerb
The minimum mtu value that path message with rro information needs, if current mtu value is more than or equal to carrying in rsb
The minimum mtu value that the path message of rro information needs, then routerb can be to the path of routerc transmission encapsulation rro information
Message.
After setting up crlsp te tunnel tunnel2, can continue to monitor the outgoing interface of each rsvp node in tunnel2
Mtu value, and head node routera periodically can send the path message not carrying rro information, receives in routerb
During the path message that routera sends, read the current mtu value of outgoing interface ge1/0/2 and the rsb of routerb of routerb
The minimum mtu value that the path message carrying rro information of middle record needs, if current mtu value is more than or equal in rsb
Carry rro information path message need minimum mtu value, then routerb can encapsulate in this path message rro believe
Breath, and down hop node routerc sends the path message after encapsulation；Routerc receives the path carrying rro information
After message, after adding the routing information of itself in path message, it is sent to its next-hop node routerd.Afterwards,
Routerd sends, to its next-hop node routerc, the resv message carrying rro information, so until head node routera connects
Receive the resv message carrying rro information, then head node routera can send to routerb when next cycle arrives and take
Path message with rro information.So so that the rsvp node in the whole piece path of tunnel2 can receive and carry
The rsvp message of rro information, such that it is able to the function of the timely record path information recovering tunnel2.
Thus, the embodiment of the present application can be on the basis of the normal basic function not affecting former crlsp te tunnel, such as
Without rebuilding tunnel, the message in tunnel does not stop and without newly-increased any process event, you can so that foundation
The function of the timely recovery record in crlsp te tunnel routing information.
Application example two
In order to more clearly describe the embodiment of the present application, pass through Another Application example as follows and describe in detail in rsvp node
In the case of the mtu value of outgoing interface is less than the minimum mtu value needed for resv message carrying rro information, the tool of the embodiment of the present application
Body realizes process.
Still, with reference to the flow chart of steps shown in Fig. 4 it is assumed that opening the record routing function in tunnel, head node taking Fig. 2 as a example
Routera down hop node routerb sends and carries the path message of rro information, and along data message direction routera-
During routerb-routerc-routerd transmission path message, the outgoing interface of each rsvp node is all higher than equal to rsvp
The propagation threshold of message, then routerd send to its next-hop node routerc and carry the resv message of rro information, but this
When routerc the mtu value of outgoing interface ge1/0/2 be less than and carry the minimum mtu value needed for resv message of rro information, then exist
This minimum mtu value is recorded, routerc deletes the rro information in described resv message, down hop node in the rsb of routerc
Routerb sends and does not carry the resv message of rro information, routerb receive the resv message that this does not carry rro information it
Afterwards, also send, to its next-hop node routera, the resv message not carrying rro information.Now, crlsp te tunnel
Tunnel3 is successfully established, and, tunnel3 is without rro information, namely tunnel3 does not have the work(of record path information
Energy.
After setting up crlsp te tunnel tunnel3, can continue to monitor the outgoing interface of each rsvp node in tunnel3
Mtu value, and head node routera periodically can send the path message not carrying rro information, receives in routerc
Routerd send do not carry rro information resv message when, monitor the current mtu of the outgoing interface ge1/0/2 of routerc
Value is more than or equal to the minimum mtu value needed for resv message carrying rro information of record in rsb, then routerc can be
Encapsulate rro information in this resv message, and down hop node routerb sends the resv message after encapsulation；Routerb connects
After receiving the resv message carrying rro information, send the resv message carrying rro information, head node to head node routera
Routera receives the resv message carrying rro information, can send to routerb when next cycle arrives and carry rro letter
The path message of breath.So so that the rsvp node in the whole piece path of tunnel3 can receive and carry rro information
Rsvp message, such that it is able to the function of the timely record path information recovering tunnel3.
Application example three
In another kind of application example of the application, as shown in Fig. 2 so that crlsp te tunnel has been set up and completed as a example, saying
The bright function of how making the crlsp te tunnel restoration record path information of foundation.Assume to be successfully established to carry
The tunnel tunnel4 of rro information, but in path, the mtu value of the outgoing interface ge1/0/2 of a certain node such as routerb is due to certain
A little reasons diminish, less than the minimum mtu value carrying needed for the path message of rro information from routera, now routerb
The minimum mtu value needed for the path message carrying rro information can be recorded, and delete the rro information in path message, to next
Hop node routerc sends the path message not carrying rro information, finally make tunnel tunnel4 without rro information.
Next, the embodiment of the present application monitors the mtu value of the outgoing interface of each rsvp node in tunnel tunnel4, and cephalomere
Point routera periodically can send the path message not carrying rro information, if routerb receives from routera not
Carry rro information path message when, monitor that the mtu value of the outgoing interface ge1/0/2 of routerb increases to more than or equal to carrying
Minimum mtu value needed for the path message of rro information, then routerb encapsulate rro information in path message, and to next
Hop node sends and carries the path message of rro information, when carrying the path message of rro information along routera-routerb-
Routerc-routerd transmits in direction to routerd, and routerd sends to its next-hop node routerc and carries rro letter
The resv message of breath, when the resv message carrying rro information transmits along routerd-routerc-routerb-routera direction
To routera, routera can send, to routerb, the path message carrying rro information when next cycle arrives,
Make the rsvp node in the whole piece path of tunnel4 can receive the rsvp message carrying rro information eventually so that tunnel
The function of road tunnel4 recovery record routing information, and then the work(such as hot standby tunnel, timing re-optimization and frr can be realized
Energy.It should be noted that all sent by rsvp node routerb in the embodiment of the present application illustrating as a example path message,
In practical application, the embodiment of the present application is for the head node routera in any rsvp node such as Fig. 2, and other node is such as
Routerc, routerd etc. are equally applicable, and are equally applicable to the direction transmission resv message contrary with data-message transmission
Process, and processing procedure is similar to the above process, and here is omitted.
To sum up, in order to avoid carrying rro information because the mtu value of the outgoing interface of a certain certain node of moment can not meet
Transmission unit size needed for rsvp message, and lead to all cannot realize again including the whole crlsp te tunnel of this node recording
The situation of the function of routing information, the embodiment of the present application is passed through to monitor the mtu value of the outgoing interface of rsvp node, is finding rsvp section
During the MTU mtu value of outgoing interface of point, then this rsvp node can send to its next-hop node and carry record road
Rsvp message by object rro information.As a result, next-hop node can receive the rsvp message with rro information, from
And make the rsvp node in the whole piece path in crlsp te tunnel can receive the rsvp message carrying rro information,
And then make the mtu value in the outgoing interface of rsvp node disclosure satisfy that the transmission unit needed for the rsvp message carrying rro information
The function of the record path information in crlsp te tunnel during size, can be recovered in time, and realize hot standby tunnel, timing weight excellent
The function such as change and frr.
In another embodiment of the application, it is more than or equal to the biography of rsvp message in the mtu value of the outgoing interface of rsvp node
During defeated threshold value, if current crlsp te tunnel is without rro information, can send to the head node in tunnel and recover rro letter
The notification message of breath, carries the new crlsp te tunnel of rro information so that the record road in crlsp te tunnel with newly-built one
The function of footpath information.With reference to Fig. 5, show a kind of steps flow chart of rsvp message treatment method of another embodiment of the application
Figure, specifically may include steps of:
Step 501, the MTU mtu value of the outgoing interface of the described rsvp node of monitoring；
Step 502, described rsvp node outgoing interface mtu value be more than or equal to rsvp message propagation threshold when, to
The head node in described crlsp te tunnel sends the notification message recovering rro information；
Rsvp message that step 503, the described head node of reception return according to described notification message, carrying rro information；
The rsvp message of rro information is carried described in step 504, the transmission of down hop node.
In a kind of application example of the application, as illustrated in fig. 2, it is assumed that receiving taking of routera transmission in routerb
Path message with rro information, and the mtu value of the outgoing interface ge1/0/2 of routerb is less than the minimum that this path message needs
The propagation threshold of this path message during mtu value, can be recorded in the rsb of routerb, then routerb deletes this path report
Rro information in literary composition, sends the path message without rro information to routerc, to set up the crlsp te without rro information
Tunnel.And continue to monitor the mtu value of the outgoing interface ge1/0/2 of routerb, when this mtu value changes, and more than before
In rsb record carry rro information the propagation threshold of path message when, routerb can to head node routera send extensive
The notification message of multiple rro information, to notify routera triggering mbb (make before break, first create and delete again) mechanism,
Reattempt to one new crlsp te tunnel with rro information of establishment.
Specifically, after routera triggering mbb mechanism, rro information can again be carried to downstream node
Path message, routerb receives and carries after the rsvp message of rro information, if now from head node routera
The mtu value of the outgoing interface ge1/0/2 of routerb is more than or equal to the minimum mtu value that this path message needs, and routerb is permissible
Again to the path message carrying rro information described in its next-hop node routerc transmission, to re-establish new carrying
The crlsp te tunnel of rro information.
In actual applications, intervalometer can also be set the head node in crlsp te tunnel, head node is when one section
Between can attempt create with rro function crlsp te tunnel, if creating successfully illustrate path in each node goes out to connect
The mtu value of mouth can meet the transmission unit size needed for rsvp message carrying rro information, at this point it is possible to be created using new
The crlsp te tunnel carrying rro information built substitutes the old crlsp te tunnel not carrying rro information, attempts in new tunnel
During establishment, do not interfere with old tunnel realizes flow process.
To sum up, the transmission needed for the mtu value in the outgoing interface of certain node can not meet the rsvp message carrying rro information
Cell size, and in the case of leading to the crlsp te tunnel set up cannot realize the function of record path information, by this Shen
Please embodiment, disclosure satisfy that the transmission needed for the rsvp message carrying rro information in the mtu value of the outgoing interface monitoring each node
During cell size, by the newly-built crlsp te tunnel with rro information, it is possible to achieve the record path letter in crlsp te tunnel
The function of breath, and then the functions such as hot standby tunnel, timing re-optimization and frr can be realized.
It should be noted that for embodiment of the method, in order to be briefly described, therefore it is all expressed as a series of action group
Close, but those skilled in the art should know, the embodiment of the present application is not limited by described sequence of movement, because according to
According to the embodiment of the present application, some steps can be carried out using other orders or simultaneously.Secondly, those skilled in the art also should
Know, embodiment described in this description belongs to preferred embodiment, involved action not necessarily the application is implemented
Example is necessary.
Corresponding with the embodiment of aforementioned rsvp message treatment method, present invention also provides rsvp message processing apparatus
Embodiment.Refer to Fig. 6, the embodiment of the application rsvp message processing apparatus 60 can be applied for carrying out to rsvp message
On the rsvp node processing.Device embodiment can realize the side it is also possible to by hardware or software and hardware combining by software
Formula is realized.As a example implemented in software, as the device on a logical meaning, it is the processor 10 by its place rsvp node
Computer program instructions corresponding in nonvolatile memory 50 are read and in internal memory 40, runs formation.From hardware view
Speech, as shown in fig. 6, being a kind of hardware structure diagram of the application rsvp message processing apparatus 60 place rsvp node, except Fig. 6 institute
Outside the processor 10, internal bus 20, network interface 30, internal memory 40 and the nonvolatile memory 50 that show, fill in embodiment
The rsvp node putting place, generally according to its actual functional capability, can also include other hardware, this is repeated no more.
With reference to Fig. 7, show a kind of structured flowchart of rsvp message processing apparatus of the one of embodiment of the application, institute
State device and be applied to rsvp node.In the embodiment of the present application, described device specifically may include that
Monitoring modular 701, for monitoring the MTU mtu value of the outgoing interface of described rsvp node；
First sending module 702, for the outgoing interface in described rsvp node mtu value be more than or equal to rsvp message biography
During defeated threshold value, down hop node sends the rsvp message carrying record routing object rro information.
In a kind of alternative embodiment of the application, described first sending module, specifically may include that
Encapsulation submodule, for the outgoing interface in described rsvp node mtu value more than or equal to rsvp message transmission threshold
During value, if not carrying rro information in the rsvp message that receives of described rsvp node, described rsvp message encapsulates rro
Information；
Sending submodule, sends the rsvp message after encapsulation for down hop node.
In another kind of alternative embodiment of the application, described device can also include:
Second sending module, for the outgoing interface in described rsvp node mtu value be less than rsvp message propagation threshold
When, if carrying rro information in the rsvp message that receives of described rsvp node, delete the rro information in described rsvp message,
Down hop node sends the rsvp message not carrying rro information.
In another alternative embodiment of the application, described first sending module, specifically may include that
Notify submodule, for the outgoing interface in described rsvp node mtu value more than or equal to rsvp message transmission threshold
During value, send, to the head node in described crlsp te tunnel, the notification message recovering rro information；
Receiving submodule, for receiving rsvp that described head node returns, carrying rro information according to described notification message
Message；
Sending submodule, for carrying the rsvp message of rro information described in the transmission of down hop node.
In another alternative embodiment of the application, described device can also include:
Logging modle, for the outgoing interface in described rsvp node mtu value be less than rsvp message propagation threshold when,
The propagation threshold of described rsvp message is recorded in the reservation state block of described rsvp node；
Described monitoring modular, specifically can be used for reading the current mtu value of the outgoing interface of described rsvp node and described
The propagation threshold of the rsvp message in reservation state block, to judge whether described current mtu value is more than or equal to the biography of rsvp message
Defeated threshold value.
Each embodiment in this specification is all described by the way of going forward one by one, what each embodiment stressed be with
The difference of other embodiment, between each embodiment identical similar partly mutually referring to.
With regard to the device in above-described embodiment, wherein the concrete mode of modules execution operation is in relevant the method
Embodiment in be described in detail, explanation will be not set forth in detail herein.
Device embodiment described above is only that schematically the wherein said unit illustrating as separating component can
To be or to may not be physically separate, as the part that unit shows can be or may not be physics list
Unit, you can with positioned at a place, or can also be distributed on multiple NEs.Can be selected it according to the actual needs
In the purpose to realize application scheme for some or all of module.Those of ordinary skill in the art are not paying creative labor
In the case of dynamic, you can to understand and to implement.
Those skilled in the art, after considering description and putting into practice invention disclosed herein, will readily occur to its of the application
Its embodiment.The application is intended to any modification, purposes or the adaptations of the application, these modifications, purposes or
Person's adaptations are followed the general principle of the application and are included the undocumented common knowledge in the art of the disclosure
Or conventional techniques.Description and embodiments be considered only as exemplary, the true scope of the application and spirit by following
Claim is pointed out.
It should be appreciated that the application is not limited to be described above and precision architecture illustrated in the accompanying drawings, and
And various modifications and changes can carried out without departing from the scope.Scope of the present application only to be limited by appended claim with
The upper described preferred embodiment being only the application, not in order to limit the application, all within spirit herein and principle, institute
Any modification, equivalent substitution and improvement made etc., should be included within the protection domain of the application.
Above to a kind of rsvp message treatment method provided herein and device, it is described in detail, herein
Apply specific case the principle of the application and embodiment are set forth, the explanation of above example is only intended to help
Understand the present processes and its core concept；Simultaneously for one of ordinary skill in the art, according to the thought of the application,
All will change in specific embodiments and applications, in sum, this specification content should not be construed as to this
The restriction of application.
Claims (10)
1. a kind of rsvp message treatment method is it is characterised in that methods described is applied to the rsvp node in crlspte tunnel,
Methods described includes:
Monitor the MTU mtu value of the outgoing interface of described rsvp node；
When the mtu value of the outgoing interface of described rsvp node is more than or equal to the propagation threshold of rsvp message, down hop node is sent out
Send the rsvp message carrying record routing object rro information.
2. method according to claim 1 is it is characterised in that the mtu value of the described outgoing interface in described rsvp node is big
When propagation threshold equal to rsvp message, down hop node sends the rsvp message carrying record routing object rro information
Step, comprising:
When the mtu value of the outgoing interface of described rsvp node is more than or equal to the propagation threshold of rsvp message, if described rsvp node
Do not carry rro information in the rsvp message receiving, then encapsulate rro information in described rsvp message；
Down hop node sends the rsvp message after encapsulation.
3. method according to claim 1 is it is characterised in that methods described also includes:
When the mtu value of the outgoing interface of described rsvp node is less than the propagation threshold of rsvp message, if described rsvp node receives
To rsvp message in carry rro information, then delete the rro information in described rsvp message, down hop node sends and do not take
Rsvp message with rro information.
4. method according to claim 1 is it is characterised in that the mtu value of the described outgoing interface in described rsvp node is big
When propagation threshold equal to rsvp message, down hop node sends the rsvp message carrying record routing object rro information
Step, comprising:
When the mtu value of the outgoing interface of described rsvp node is more than or equal to the propagation threshold of rsvp message, to described crlsp te
The head node in tunnel sends the notification message recovering rro information；
Receive rsvp message that described head node returns, carrying rro information according to described notification message；
The rsvp message of rro information is carried described in the transmission of down hop node.
5. method according to claim 1 is it is characterised in that methods described also includes:
When the mtu value of the outgoing interface of described rsvp node is less than the propagation threshold of rsvp message, pre- in described rsvp node
Stay the propagation threshold recording described rsvp message in status block；
The step of the described MTU mtu value of outgoing interface monitoring described rsvp node, comprising:
Read the transmission threshold of the rsvp message in the current mtu value of the outgoing interface of described rsvp node and described reservation state block
Value, to judge whether described current mtu value is more than or equal to the propagation threshold of rsvp message.
6. a kind of rsvp message processing apparatus are it is characterised in that described device is applied to the rsvp node in crlsp te tunnel,
Described device includes:
Monitoring modular, for monitoring the MTU mtu value of the outgoing interface of described rsvp node；
First sending module, for the outgoing interface in described rsvp node mtu value be more than or equal to rsvp message propagation threshold
When, down hop node sends the rsvp message carrying record routing object rro information.
7. device according to claim 6 is it is characterised in that described first sending module, comprising:
Encapsulation submodule, for the outgoing interface in described rsvp node mtu value more than or equal to rsvp message propagation threshold when,
If not carrying rro information in the rsvp message that described rsvp node receives, described rsvp message encapsulates rro information；
Sending submodule, sends the rsvp message after encapsulation for down hop node.
8. device according to claim 6 is it is characterised in that described device also includes:
Second sending module, for the outgoing interface in described rsvp node mtu value be less than rsvp message propagation threshold when, if
Carry rro information in the rsvp message that described rsvp node receives, then delete the rro information in described rsvp message, downwards
One hop node sends the rsvp message not carrying rro information.
9. device according to claim 6 is it is characterised in that described first sending module, comprising:
Notify submodule, for the outgoing interface in described rsvp node mtu value more than or equal to rsvp message propagation threshold when,
Send the notification message recovering rro information to the head node in described crlsp te tunnel；
Receiving submodule, disappears for receiving rsvp that described head node returns, carrying rro information according to described notification message
Breath；
Sending submodule, for carrying the rsvp message of rro information described in the transmission of down hop node.
10. device according to claim 6 is it is characterised in that described device also includes:
Logging modle, for the outgoing interface in described rsvp node mtu value be less than rsvp message propagation threshold when, described
The propagation threshold of described rsvp message is recorded in the reservation state block of rsvp node；
Described monitoring modular, the current mtu value specifically for the outgoing interface of the described rsvp node of reading and described reservation state
The propagation threshold of the rsvp message in block, to judge whether described current mtu value is more than or equal to the propagation threshold of rsvp message.
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| CN112698606A (en) * | 2020-12-28 | 2021-04-23 | 国网北京市电力公司 | Processing method for collected message |
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