CN108183858A - A kind of routing introducing method and device - Google Patents
A kind of routing introducing method and device Download PDFInfo
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- CN108183858A CN108183858A CN201711429737.5A CN201711429737A CN108183858A CN 108183858 A CN108183858 A CN 108183858A CN 201711429737 A CN201711429737 A CN 201711429737A CN 108183858 A CN108183858 A CN 108183858A
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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
- H04L45/58—Association of routers
- H04L45/586—Association of routers of virtual routers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
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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
- H04L45/74—Address processing for routing
Abstract
The application provides a kind of routing introducing method and device, and this method is applied to the local end PE equipment in EVPN networkings, and this method is：Obtain the common RT and ESI of opposite end PE equipment；When the common RT of the opposite end PE equipment and the common RT of local end PE equipment are there are during identical RT, the ES RT of the corresponding ESI are generated according to the ESI of the opposite end PE equipment；When the RT carried in the EVPN routings received is matched with the generated ES RT, EVPN routings are introduced into the MAC address entries of local end PE equipment and/or IP list items.Pass through the above method, as long as local end PE equipment determines to have in the EVPN received routings RT identical with the generated ES RT in local, EVPN routings can be introduced directly into, it is reduced so that introducing and routeing consumed time, and introduces and route the consumed time and no longer influenced by the RT quantity of PE device configurations.
Description
Technical field
This application involves field of communication technology more particularly to a kind of routing introducing methods and device.
Background technology
In EVPN (Ethernet Virtual Private Network, Ethernet Virtual Private Network), in order to carry
The bandwidth availability ratio of high link and enhancing network reliability, the host (either virtualizing empty machine) of a usual user or
It is the private network of a user, can be connected to by multilink on more VTEP in EVPN networks, this is known as belong to more
Access.
Common routing way of reference is in EVPN：PE (Provider Edge, Provider Edge) equipment is from CE
After (Customer Edge, customer network edge) equipment acquires the routing of CE equipment local, increase RD (Route in routing
Distinguisher, route-distinguisher) and RT (Route Target, route target), then it is distributed to other PE.Different VPN's
Routing is distinguished in public network by RD, and the routing between different CE equipment carries out introducing control using RT.PE equipment is connecing
When receiving the routing of other PE equipment publications, the RT carried in routing is compared with the RT being locally configured, only in the two
There are can just introduce the routing during identical RT values.
Invention content
The application provides a kind of method and apparatus for being rapidly introduced into routing.
Specifically, the application is achieved by the following technical solution：
The application is in a first aspect, provide a kind of routing introducing method, applied to the local end PE equipment in EVPN networkings, institute
The method of stating includes：
Obtain the common RT and ESI of opposite end PE equipment；
When the common RT of the opposite end PE equipment and the common RT of local end PE equipment are there are during identical RT, according to described right
Hold the ES RT of the corresponding ESI of ESI generations of PE equipment；
When the RT carried in the EVPN routings received is matched with the generated ES RT, EVPN routings are drawn
Enter into the MAC address entries of local end PE equipment and/or IP list items.
The application second aspect provides a kind of routing introducing device, applied to the local end PE equipment in EVPN networkings, institute
Device is stated to include：
Acquiring unit, for obtaining the common RT of opposite end PE equipment and ESI；
ES RT generation units, for working as the common RT of the common RT of the opposite end PE equipment and local end PE equipment, there are phases
With RT when, the ES RT of the corresponding ESI are generated according to the ESI of the opposite end PE equipment；
Routing introduces unit, for when the RT that carries is matched with the generated ESRT in the EVPN routings received,
EVPN routings are introduced into the MAC address entries of local end PE equipment and/or IP list items.
As can be seen from the above technical solutions, in the application, local end PE equipment generates one according to the ESI of opposite end PE equipment
Special RT, opposite end PE equipment generate identical special RT also based on the ESI of itself.Later, it for opposite end PE equipment, can send out
This special RT is carried in the EVPN routings of cloth；For local end PE equipment, as long as determining there is RT and this in the EVPN received routings
The generated special RT in ground is identical, can be introduced directly into EVPN routings so that and it introduces and route consumed time reduction, and
Introduce routing the consumed time is no longer influenced by the RT quantity of PE device configurations.
Description of the drawings
Fig. 1 is a kind of EVPN networking schematic diagrams；
Fig. 2 is method flow diagram provided by the embodiments of the present application；
Fig. 3 is the interactive process figure between local end PE equipment provided by the embodiments of the present application and opposite end PE equipment；
Fig. 4 is structure drawing of device provided by the embodiments of the present application；
Fig. 5 is the hardware structure diagram of Fig. 4 shown devices provided by the embodiments of the present application.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, example is illustrated in the accompanying drawings.Following description is related to
During attached drawing, unless otherwise indicated, the same numbers in different attached drawings represent the same or similar element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the application.
It is only merely for the purpose of description specific embodiment in term used in this application, and is not intended to be limiting the application.
It is also intended in the application and " one kind " of singulative used in the attached claims, " described " and "the" including majority
Form, unless context clearly shows that other meanings.It is also understood that term "and/or" used herein refers to and wraps
Containing one or more associated list items purposes, any or all may be combined.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the application
A little information should not necessarily be limited by these terms.These terms are only used for same type of information being distinguished from each other out.For example, not departing from
In the case of the application range, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depending on linguistic context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determining ".
It is a kind of technology that CE is supported to be connected to multiple PE that EVPN belongs to more, and EVPN belongs to more introduces ES (Ethernet
Segment, ethernet segment) concept：When a website is linked into EVPN networks by multilink, these links form one
ES；Each of the links use identical ESI (Ethernet Segment Identifier, Ethernet segment mark on corresponding VTEP
Know symbol) mark.Such as in EVPN networkings shown in Fig. 1, just for more ownership to PE1 and PE2, CE1 is connected to PE1's and PE2 to CE1
Link passes through ESI (such as es1) unique mark.
There are many types for EVPN routings, and different types of EVPN routings can realize different functions, defined at present
EVPN routings have eight classes.For example, (hereinafter referred to as two classes are route, other types of EVPN routings for the second class EVPN routings
Similar abbreviation can be used), i.e. MAC/IP notice routings (MAC/IP Advertisement Route), available for synchronizing MAC/
IP list items；Three classes routing can be used for creating tunnel；The routing of five classes can be used for synchronizing IP network section routing.
Here illustrate a kind of incorporation way of two class routing in EVPN networkings by taking CE1, PE2 and PE3 in Fig. 1 as an example：
After PE2 acquires MAC (Medium Access Control, media access control) address of CE1, two classes can be issued to PE3
Routing includes RD, RT and next-hop of the MAC Address of CE1, the ESI and PE2 of CE1 in the routing of two classes.PE3 receives two class
After routing, the RT during which is route is compared with the RT being locally configured, and just to be introduced as long as there are identical RT in the two
This two class is route.Assuming that the RT that the routing of two classes carries is 1:1、2:2、3:3, the PE3 RT being locally configured are 3:3、4:4, then
By can relatively determine that there are identical RT 3 in the two:3, so the CE1 that PE3 is carried during can this two class be route
MAC Address is introduced into RT 3:The MAC address entries of 3 corresponding VSI (Virtual Switch Interface, virtual switch interface)
In.
The shortcomings that this routing incorporation way is the every EVPN received to be route, PE equipment is required for the EVPN
It route each RT carried the and RT that is locally configured and compare to determine if to introduce EVPN routings and by the EVPN roads
By being introduced into which local forwarding instance；When the RT being configured in PE equipment is more, when introducing routing by consuming longer
Between.
To solve this problem, this application provides a kind of routings to be rapidly introduced into scheme, in the present solution, local end PE equipment root
A special RT is generated according to the ESI of opposite end PE equipment, opposite end PE equipment generates identical special RT also based on the ESI of itself.It
Afterwards, for opposite end PE equipment, this special RT can be carried in the EVPN of publication routings；For local end PE equipment, as long as really
Surely there is RT identical with local generated special RT in the EVPN routings received, EVPN routings can be introduced directly into so that
It introduces and route consumed time reduction, and introduce and route the consumed time no longer by the shadow of the RT quantity of PE device configurations
It rings.For ease of differentiation, will ES RT be known as based on the special RT that ESI is generated below, traditional RT is known as common RT, it will be common
RT and ES RT are referred to as RT.
Technical scheme is illustrated with each embodiment with reference to the accompanying drawings of the specification.
Referring to Fig. 2, in one embodiment, any local end PE equipment in EVPN networkings performs such as in the process of running
Lower step：
Step 201：Local end PE equipment obtains the common RT and ESI of opposite end PE equipment.
Step 202：When the common RT of opposite end PE equipment and the common RT of local end PE equipment are there are during identical RT, local end PE
Equipment generates the ES RT of the corresponding ESI according to the ESI of opposite end PE equipment.
ES RT and common RT are 8 bytes, wherein preceding 2 bytes define the type of attribute, rear 6 bytes include
The value of attribute.The property value of ES RT is 0x0602, and the property value of common RT is 0x0002 or 0x0102.
As one embodiment, ES RT can be generated by following steps：6 words before being extracted from the ESI of 10 bytes
Section, is spliced with property value 0x0602, obtains ES RT.
Such as, it is assumed that an ESI is 0x12345678901234567890, then the ES of 8 bytes can be generated according to this ESI
RT=0x0602 123456789012.
Step 203：When the RT carried in the EVPN routings received is matched with generated above-mentioned ES RT, local end PE is set
It is standby that EVPN routings are introduced into local MAC address entries and/or IP list items.
So far, flow shown in Fig. 2 is completed.
The routing introducing method that can be seen that the application offer by flow shown in Fig. 2 is logical compared to above-described
The method for comparing that the common RT carried and the common RT being locally configured carry out routing introducing in EVPN routings is crossed, is mainly had following excellent
Gesture：1) when sending EVPN routings, only an ES RT need to be carried in EVPN routings, it is no longer necessary to a large amount of common RT is carried,
The byte number that EVPN routings occupy can be reduced in this way, and then transmission EVPN can be saved and route consumed network bandwidth；2)
When deciding whether to introduce EVPN routings, the RT and local generated ES RT during only EVPN need to be route are compared, in this way
It can reduce to introduce and route the consumed time, and introduce and route the consumed time no longer with the common RT numbers of PE device configurations
The growth of amount and increase.
It should be noted that can be applied not only to EVPN as shown in Figure 1 more for the routing introducing method that provides of the application
Belong to scene；Under the non-multi ownership scenes of EVPN, if being configured with effective ESI in some PE equipment, this Shen can also be used
The routing introducing method that please be provided enables opposite end PE equipment be rapidly introduced into the EVPN routings of this PE equipment publication.
In order to make those skilled in the art more clear and clear, below in conjunction with Fig. 3, pass through local end PE equipment and opposite end PE
Interaction between equipment illustrates the specific implementation process of method shown in Fig. 2.
Step 301：Local end PE equipment judges that the whether enabled routing based on ES of this equipment introduces strategy.
Here judge that the whether enabled routing based on ES of this equipment introduces strategy, that is, judge whether this equipment supports basis
ESI generates ES RT and the ability of routing introducing and transmission is carried out according to ES RT.
Step 302：If enabled, local end PE equipment is to opposite end PE equipment transmitting capacity negotiation messages.
In the present embodiment, capability negotiation message be used to indicate send this capability negotiation message PE equipment enable based on ES's
Routing introduces strategy.
Here capability negotiation message can simply enumerate two kinds here there are many realization method：
Mode one：It is realized by existing type of message.
For by two class route implementing capability negotiation message.Local end PE equipment can send two classes to opposite end PE equipment
Routing, wherein increasing new attribute in extended community attribute (Ext-Community) field of two classes routing, PE equipment passes through this
A new attribute represents that this equipment enables the routing based on ES and introduces strategy；RT in the routing of two classes can be filled with one in advance
If RT values, this preset RT value can be the overall situation arranged in advance be applicable in for unconditionally introduce capability negotiation disappear
The RT values of breath, the capability negotiation message that all PE equipment are externally sent all carry this preset RT value；RT is removed in the routing of two classes
With other fields outside aforementioned capabilities attribute, as RD, ESI, VLAN ID (i.e. Ethernet tag ID (Ethernet Tag ID)),
MAC Address length (MAC Address Length), MAC Address, IP address length (IP Address Length), IP address
Etc. fields fill out as invalid value (such as fill out is 0).
Based on mode one, opposite end PE equipment is after receiving and introducing a two classes routing, if it find that in the routing of this two class
New attribute in extended community attribute field is virtual value, and other fields in addition to RT and this new attribute are invalid value, then
This two class received routing is considered capability negotiation message, determines that the PE equipment for sending this capability negotiation message enables and is based on
The routing of ES introduces strategy.
Mode two：It is realized by new type of message.
For example, a kind of type of message can be increased newly, this newly-increased type of message is known as nine class roads for the time being for convenience of description
By.In one implementation, in order to allow capability negotiation message here and the ES that occurs hereinafter introduce routing can be multiplexed it is same
A kind of type of message, the message format that can define the routing of nine classes include RD, RT, ESI and VLAN id field.When by this
During nine class route implementing capability negotiation message of form, wherein the RT of nine classes routing can be filled with a preset RT value, this
A preset RT values can be the RT values for unconditionally introducing capability negotiation message that the overall situation arranged in advance is applicable in；Nine
RD, ESI and VLAN ID in class routing then fills into invalid value.
Step 303：After opposite end PE equipment receives the capability negotiation message of local end PE equipment transmission, judge whether itself enables
Routing based on ES introduces strategy and itself whether is configured with ESI.
Step 304：If opposite end PE equipment determines that itself enabled routing based on ES introduces strategy and is configured with ESI,
Local end PE equipment is sent to by the ESI of itself configuration and with the associated common RT and VLAN ID of ESI.
If it should be noted that VLAN is not configured for ESI in the PE equipment of opposite end, then PE equipment in opposite end is sent here
It is an invalid value to local end PE equipment and the associated VLAN ID of ESI.
As an example it is assumed that the interface rag0/1 of PE2 connections CE1 is three layer interface in Fig. 1, the following institute of configuration on PE2
Show：
Above-mentioned configuration represents：Three layer interface rag0/1's on PE2 is identified as ES 1, and three layer interface rag0/1 is associated with
It is RD 2 that vsi 1, vsi 1, which is associated with Vxlan1 and 1 corresponding RD of Tunnel12, vsi, and 1 corresponding RT of vsi are 1:1 2:2 3:
3。
Based on above-mentioned configuration, PE2 confirms that the local enabled routing based on ES is drawn after the capability negotiation message of PE3 is received
Enter strategy, can by ES 1 and with the associated common RT 1 of ES 1:1 2:2 3:3rd, RD2 is sent to PE3, since ES1 is identified
Three layer interface rag0/1 VLAN is not configured, therefore PE2 is an invalid value response to 1 associated VLAN ID of PE3 and ES.
For another example, if the interface bag0/1 of PE2 connections CE1 is two layer interface in Fig. 1, the configuration on PE2 is as follows：
ES fast-import//enabled routing based on ES introduces strategy
Above-mentioned configuration represents：Two layer interface bag0/1's on PE2 is identified as ES 2, has under two layer interface bag0/1
Vlan 10 and Vlan 20, wherein Vlan10 are associated with vsi 2, and Vlan 20 is associated with vsi 3.
Based on above-mentioned configuration, PE2 confirms that the local enabled routing based on ES is drawn after the capability negotiation message of PE3 is received
Enter strategy, can by ES 2 and with the associated common RT 1 of ES 2:1 2:2 3:3rd, Vlan 10 and Vlan20, RD2:2 and RD
3:3 are sent to PE3.
For ease of description, the present embodiment will be responsible for transmitting the ESI of PE equipment in step 304, common RT and VLAN ID disappear
Breath is known as ES and introduces routing.ES introduces routing and again may be by existing type of message or new type of message to realize.
Assuming that by existing two classes route implementing ES introduce route, then can by the RD being configured in PE equipment, common RT,
ESI and VLAN ID are inserted in RD, RT, ESI and VLAN id field of two classes routing；Meanwhile the MAC Address during two classes are route
This 4 fields of length, MAC Address, IP address length and IP address fill into invalid value.
Assuming that realize that ES introduces routing, the message lattice of nine classes routing by the type of message (routing of such as nine classes) newly defined
Formula as described above, including RD, RT, ESI and VLAN id field.When the nine class route implementing ES introducings road by this form
By when, only the RD being configured in PE equipment, common RT, ESI and VLAN ID need to be inserted nine classes routing respective field in.
If it should be noted that being configured with multiple effective ESI in the PE equipment of opposite end, opposite end PE equipment can be directed to
Each ESI sends corresponding ES and introduces routing respectively.If opposite end PE equipment without the enabled routing based on ES introduce strategy or
Person is configured without the ESI of effect, then does not respond.
Step 301 to step 304 describes a unidirectional capability negotiation procedure；Similarly, opposite end PE equipment also can be to
Local end PE equipment transmitting capacity negotiation message, local end PE equipment can also respond the ESI that itself is configured the capability negotiation message, general
Logical RT and VLAN ID introduce routing by ES and are sent to opposite end PE equipment.Below mainly from the angle of local end PE equipment, description
ES RT generating process and the routing introducing process based on ES RT.
Step 305：Local end PE equipment receive opposite end PE equipment ESI and with the associated common RT and VLAN ID of ESI
Afterwards, judge that the common RT and the common RT of local end PE equipment of opposite end PE equipment whether there is identical RT.
Step 306：If there is identical RT, then local end PE equipment is according to the corresponding ESI of the ESI of opposite end PE equipment generations
ES RT, search the corresponding forwarding instance marks of identical with this RT in local end PE equipment, and generate routing and introduce list item.
Here the routing generated introduces list item and includes occurrence and forwarding instance corresponding with occurrence mark, wherein matching
For opposite end PE equipment ESI and with the associated VLAN ID of the ESI.Here forwarding instance mark includes two layers of forwarding instance
Identify (such as VSI marks) and three layers of forwarding instance mark (such as VPN marks).
As described above, PE equipment in opposite end can introduce itself is configured for routing ESI, common RT and VLAN by ES
ID is sent to local end PE equipment.One ES introduces routing and only carries an ESI, but can carry multiple VLAN ID.
Assuming that it is esi1 that certain ES, which is introduced into the ESI carried in routing, the VLAN ID of carrying include vlan id1 and vlan
Id2, the ES introduce common RT and local end PE equipment that routing carries there are identical RT and the corresponding forwardings of the identical RT in fact
Example is identified as vsi1 and vpn1, then the routing generated introduces list item can be with shown in reference table 1 or table 2.
Table 1
| esi1+vlan id1 | vsi1、vpn1 |
| esi1+vlan id2 | vsi1、vpn1 |
Table 2
| Esi1+vlan id1 or esi1+vlan id2 | vsi1、vpn1 |
Step 307：When local end PE equipment receives EVPN routings, judge whether there is RT to be set with local end PE in EVPN routings
Standby generated ES RT match, if there is then EVPN routings are introduced into the MAC address entries of this equipment and/or IP list items.
It, then can should if instead there is no RT to match with the generated ES RT of local end PE equipment in EVPN routings
The RT that EVPN routings carry is matched with the common RT of local end PE equipment；If RT and local end PE equipment that EVPN routings carry
Common RT there are identical RT, then EVPN routings are introduced into the corresponding MAC address entries of identical RT and/or IP list items
In.
In step 307, when determining to there are the RT and already present ES RT of local end PE equipment to match in EVPN routings,
The matched routings of ESI and VLAN ID carried with EVPN routings can be searched and introduce list item.
From above, it is found that ES RT were generated according to preceding 6 bytes of ESI, this calculation causes according to different
ESI may generate identical ES RT.Such as there are two ESI be respectively 0x12345678901233333333 and
0x12345678901244444444 is 0x0,602 123456789012 according to the two ESI ES RT generated.ES RT
Nonuniqueness lead to the feelings that the ES RT for having the generation of RT and local end PE equipment in EVPN routings are determined in step 307 match
Under condition, ESI the and VLAN ID carried according to EVPN routings are but searched less than matched routing introducing list item.For this feelings
Condition, the application propose solution below：
If finding the matched routings of ESI and VLAN ID carried with EVPN routings introduces list item, which is route
In the MAC address entries and/or IP list items that are introduced into corresponding to the forwarding instance mark that matched routing is introduced into list item；
If not finding matched routing introduces list item, the RT and the common RT of local end PE equipment that EVPN routings are carried
It is matched, if the EVPN route the common RT of the RT and local end PE equipment carried there are identical RT, by the EVPN roads
By being introduced into the corresponding MAC address entries of identical RT and/or IP list items.Optionally, if follow-up local end PE equipment generates again
After new routing introduces list item, can introduce list item based on newly-generated routing can match this ES RT of this equipment
But can not find matching routing introduce list item EVPN routing it is counter looked into, with determine whether by this EVPN route be introduced into just
In true MAC address entries and/or IP list items.
As a kind of realization method, EVPN routings are being introduced into the MAC address entries of this equipment and/or IP list items by the present embodiment
When middle, following several situations can be divided into：
One, it, can should when EVPN routings are invalid value for the IP address that the routing of two classes and EVPN routings carry
EVPN routings are introduced into the MAC address entries of this equipment；
Two, it, can should when EVPN routings are virtual value for the IP address that the routing of two classes and EVPN routings carry
EVPN routings are introduced into the MAC address entries and IP list items of this equipment simultaneously；
Three, when EVPN routings is the routings of five classes, which can be route to the IP list items for being introduced into this equipment.
In addition, it is contemplated that the future may appear other types of EVPN routings, then the other types occurred for future
EVPN routing, if the EVPN routing in carry effective ESI, then it is also contemplated that using the application provide routing draw
Enter method.
The method provided above the application is described.The device provided below the application is described：
Referring to Fig. 4, Fig. 4 is the structure drawing of device that the application provides.The local end PE that the device is applied in EVPN networkings is set
It is standby.As shown in figure 4, the device includes：
Acquiring unit 401, for obtaining the common RT of opposite end PE equipment and ESI.
ES RT generation units 402 exist for working as the common RT of the opposite end PE equipment and the common RT of local end PE equipment
During identical RT, the ESRT of the corresponding ESI is generated according to the ESI of the opposite end PE equipment.
Routing introduces unit 403, for being matched as the RT carried in the EVPN routings received with the generated ES RT
When, EVPN routings are introduced into the MAC address entries of local end PE equipment and/or IP list items.
In wherein a kind of embodiment, described device can also include routing and introduce list item generation unit；The acquisition
Unit 401 is additionally operable to obtain the associated VLAN ID of ESI with opposite end PE equipment.The routing introduces list item generation unit, uses
In when the common RT of opposite end PE equipment and the common RT of local end PE equipment there are during identical RT, search in local end PE equipment with institute
State the corresponding forwarding instance marks of identical RT；According to the ESI of the opposite end PE equipment got and with the associated VLAN ID of ESI
And the forwarding instance mark generation routing found introduces list item, the routing introduces list item and includes occurrence and and occurrence
Corresponding forwarding instance mark, wherein occurrence for the opposite end PE equipment ESI and with the associated VLAN ID of ESI.
In wherein a kind of embodiment, the routing introduces unit 403, can be used for searching and be taken with EVPN routings
The matched routings of ESI and VLAN ID of band introduce list item；If finding, EVPN routings are introduced into matched routing and are drawn
Enter in MAC address entries and/or the IP list items corresponding to the forwarding instance mark in list item.
In wherein a kind of embodiment, the routing introduces unit 403, if can be also used for not finding and the EVPN
It route the matched routings of the ESI and VLAN ID carried and introduces list item, then the RT and local end PE equipment carried EVPN routings
Common RT matched；If the common RT of the RT that EVPN routing carries and local end PE equipment there are identical RT,
EVPN routings are introduced into the corresponding MAC address entries of identical RT and/or IP list items.
In wherein a kind of embodiment, the acquiring unit 401 can be used for judging the whether enabled base of local end PE equipment
Strategy is introduced in the routing of ES；If enabled, to the opposite end PE equipment transmitting capacity negotiation message, the capability negotiation disappears
Breath, which is used to indicate, to be sent the local end PE equipment of the capability negotiation message and enables routing based on ES and introduce strategy so that receipts
To the capability negotiation message the opposite end PE equipment determine itself routing based on ES introduce strategy and from
When body is configured with ESI, by the ESI of itself configuration and it is sent to the local end PE with the associated common RT and VLAN ID of ESI and sets
It is standby.
In wherein a kind of embodiment, the routing introduces unit 403, and can be used for when EVPN routings is two classes
When the IP address that routing and EVPN routings carry is invalid value, EVPN routings are introduced into the MAC of local end PE equipment
In list item；When it is virtual value that the EVPN, which is route as the IP address of the routing of two classes and EVPN routing carryings, by described in
EVPN routings are introduced into the MAC address entries and IP list items of local end PE equipment simultaneously；It, will when EVPN routings is the routings of five classes
The EVPN routings are introduced into the IP list items of local end PE equipment.
The function of modules and the realization process of effect specifically refer to and step are corresponded in the above method in above device
Realization process, details are not described herein.
It should be noted that it is schematical, only a kind of logic function to the division of unit in the embodiment of the present invention
It divides, can there is other dividing mode in actual implementation.Each functional unit in embodiments herein can be integrated in
In one processing unit or each unit is individually physically present, can also two or more units be integrated in one
In a unit.The form that hardware had both may be used in above-mentioned integrated unit is realized, can also use the form of SFU software functional unit
It realizes.
So far, the description of Fig. 4 shown devices is completed.
Referring to Fig. 5, the application also provides a kind of hardware architecture diagram of PE equipment, which includes：Communication interface 501,
Processor 502, memory 503 and bus 504；Wherein, communication interface 501, processor 502 and memory 503 pass through bus 504
Complete mutual communication.
Wherein, communication interface 501, for communicating with other PE equipment.Processor 502 can be a central processing unit
(CPU), memory 503 can be nonvolatile memory (non-volatile memory), and be stored in memory 503
There is routing to introduce logical order, processor 502 can perform the routing stored in memory 503 and introduce logical order, to realize
The function of local end PE equipment in flow shown in above-mentioned Fig. 2 and Fig. 3.
So far, hardware configuration description shown in fig. 5 is completed.
The foregoing is merely the preferred embodiment of the application, not limiting the application, all essences in the application
God and any modification, equivalent substitution, improvement and etc. within principle, done, should be included within the scope of the application protection.
Claims (12)
1. a kind of routing introducing method, which is characterized in that applied to the local terminal service in Ethernet Virtual Private Network EVPN networkings
Provider's edge PE equipment, the method includes：
Obtain the common route target RT of opposite end PE equipment and ethernet segment identifier ESI；
When the common RT of the opposite end PE equipment and the common RT of local end PE equipment are there are during identical RT, according to the opposite end PE
The ES RT of the corresponding ESI of ESI generations of equipment；
When the RT carried in the EVPN routings received is matched with the generated ES RT, EVPN routings are introduced into
In the MAC address entries of local end PE equipment and/or IP list items.
2. the method as described in claim 1, which is characterized in that in the MAC that EVPN routings are introduced into local end PE equipment
Before in list item and/or IP list items, the method further includes：
Obtain the associated VLAN ID of ESI with opposite end PE equipment；
When the common RT of opposite end PE equipment and the common RT of local end PE equipment there are during identical RT, search in local end PE equipment with
The corresponding forwarding instance mark of the identical RT；
According to the ESI of the opposite end PE equipment got and VLAN ID associated with ESI and the forwarding instance found mark life
List item is introduced into routing, the routing introduces list item and is identified comprising occurrence and forwarding instance corresponding with occurrence, wherein
With item for the opposite end PE equipment ESI and with the associated VLANID of ESI.
3. method as claimed in claim 2, which is characterized in that described that EVPN routings are introduced into local end PE equipment
In MAC address entries and/or IP list items, including：
It searches the matched routings of ESI and VLAN ID carried with EVPN routings and introduces list item；
If finding, EVPN routings are introduced into corresponding to the matched forwarding instance mark for routeing and being introduced into list item
In MAC address entries and/or IP list items.
4. method as claimed in claim 3, which is characterized in that the method further includes：
If not finding the matched routings of ESI and VLAN ID carried with EVPN routings introduces list item, by the EVPN roads
It is matched by the RT carried with the common RT of local end PE equipment；
If the EVPN is route by RT and the common RT of local end PE equipment that the EVPN routings carry there are identical RT
It is introduced into the corresponding MAC address entries of identical RT and/or IP list items.
5. the method as described in claim 1, which is characterized in that the common RT and ESI for obtaining opposite end PE equipment, including：
Judge that the whether enabled routing based on ES of local end PE equipment introduces strategy；
If enabled, to the opposite end PE equipment transmitting capacity negotiation message, the capability negotiation message is used to indicate transmission
The local end PE equipment of the capability negotiation message enables the routing based on ES and introduces strategy so that receives the capability negotiation
The opposite end PE equipment of message is determining that itself routing based on ES introduces strategy and when itself being configured with ESI,
The local end PE equipment is sent to by the ESI of itself configuration and with the associated common RT and VLAN ID of ESI.
6. the method as described in claim 1, which is characterized in that EVPN routings are introduced into the MAC table of local end PE equipment
In item and/or IP list items, including：
When EVPN routings are invalid value for the IP address that the routing of two classes and EVPN routings carry, by the EVPN roads
By being introduced into the MAC address entries of local end PE equipment；
When EVPN routings are virtual value for the IP address that the routing of two classes and EVPN routings carry, by the EVPN roads
By being introduced into simultaneously in the MAC address entries and IP list items of local end PE equipment；
When EVPN routings is the routings of five classes, EVPN routings are introduced into the IP list items of local end PE equipment.
7. a kind of routing introducing device, which is characterized in that applied to the local terminal service in Ethernet Virtual Private Network EVPN networkings
Provider's edge PE equipment, described device include：
Acquiring unit, for obtaining the common route target RT of opposite end PE equipment and ethernet segment identifier ESI；
ES RT generation units, for working as the common RT of the common RT of the opposite end PE equipment and local end PE equipment, there are identical
During RT, the ES RT of the corresponding ESI are generated according to the ESI of the opposite end PE equipment；
Routing introduces unit, for when the RT that carries is matched with the generated ESRT in the EVPN routings received, by institute
EVPN routings are stated to be introduced into the MAC address entries of local end PE equipment and/or IP list items.
8. device as claimed in claim 7, which is characterized in that described device further includes routing and introduces list item generation unit；
The acquiring unit is additionally operable to obtain the associated VLAN ID of ESI with opposite end PE equipment；
The routing introduces list item generation unit, exists for working as the common RT of opposite end PE equipment and the common RT of local end PE equipment
During identical RT, forwarding instance mark corresponding with the identical RT in local end PE equipment is searched；According to the opposite end got
The ESI of PE equipment and VLAN ID associated with ESI and the forwarding instance mark generation routing found introduce list item, described
Routing introduces list item and includes occurrence and forwarding instance corresponding with occurrence mark, and wherein occurrence is the opposite end PE equipment
ESI and with the associated VLAN ID of ESI.
9. device as claimed in claim 8, which is characterized in that
The routing introduces unit, and table is introduced for searching the matched routings of ESI and VLAN ID carried with EVPN routings
；If finding, EVPN routings are introduced into the MAC corresponding to the matched forwarding instance mark for routeing and being introduced into list item
In list item and/or IP list items.
10. device as claimed in claim 9, which is characterized in that
The routing introduces unit, if being additionally operable to not find the ESI carried with EVPN routings and the matched routings of VLANID
List item is introduced, then is matched the RT that EVPN routings carry with the common RT of local end PE equipment；If the EVPN roads
By the common RT of the RT that carries and local end PE equipment, there are identical RT, then EVPN routings are introduced into this identical RT pairs
In the MAC address entries and/or IP list items answered.
11. device as claimed in claim 7, which is characterized in that
The acquiring unit, for judging that the whether enabled routing based on ES of local end PE equipment introduces strategy；If enabled, to
The opposite end PE equipment transmitting capacity negotiation message, the capability negotiation message, which is used to indicate, sends the capability negotiation message
The local end PE equipment enables the routing based on ES and introduces strategy so that the opposite end PE for receiving the capability negotiation message is set
It is standby to determine that itself enabled routing based on ES introduces strategy and when itself being configured with ESI, by the ESI of itself configuration and
The local end PE equipment is sent to the associated common RT and VLAN ID of ESI.
12. device as claimed in claim 7, which is characterized in that
The routing introduces unit, is for the IP address that the routing of two classes and EVPN routings carry for working as the EVPN routings
During invalid value, EVPN routings are introduced into the MAC address entries of local end PE equipment；When the EVPN routing for two classes routing and
When the IP address that the EVPN routings carry is virtual value, the EVPN is route to the MAC table for being introduced into local end PE equipment simultaneously
In item and IP list items；When EVPN routings is the routings of five classes, EVPN routings are introduced into the IP tables of local end PE equipment
.
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| CN201711429737.5A CN108183858B (en) | 2017-12-26 | 2017-12-26 | Route introducing method and device |
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