CN105577542B - A kind of message forwarding method and routing bridge based on TRILL network - Google Patents
A kind of message forwarding method and routing bridge based on TRILL network Download PDFInfo
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- CN105577542B CN105577542B CN201510990503.2A CN201510990503A CN105577542B CN 105577542 B CN105577542 B CN 105577542B CN 201510990503 A CN201510990503 A CN 201510990503A CN 105577542 B CN105577542 B CN 105577542B
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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
- H04L45/66—Layer 2 routing, e.g. in Ethernet based MAN's
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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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Abstract
The embodiment of the present invention provides a kind of message forwarding method and routing bridge based on TRILL network, is related to data communication field, can realize in decapsulation TRILL frame message in the case where not increasing gateway and then carry out three layers of forwarding to ethernet frame message.First RB receives the first TRILL frame message, the first TRILL frame message includes the first ethernet frame message and first outlet routing bridge, first ethernet frame message includes source MAC, target MAC (Media Access Control) address, source IP address and purpose IP address, target MAC (Media Access Control) address is gateway MAC address, and the first RB is the previous dive routing bridge of the corresponding routing bridge of gateway MAC address；When first outlet routing bridge is identical as the first RB, the first ethernet frame message is obtained；Forward the first ethernet frame message to the 3rd RB according to target MAC (Media Access Control) address and static mac address list item, for E-Packeting.
Description
Technical field
The present invention relates to data communication field more particularly to a kind of message forwarding methods and routing based on TRILL network
Bridge.
Background technique
Transparent interconnection of lots of links interconnection (full name in English: Transparent Interconnection of Lots of Links,
English abbreviation: TRILL) agreement be Internet Engineering Task group (English: Internet Engineering Task Force, contracting
Write: IETF) a kind of Routing Protocol calculated on double layer network based on link state for recommending, for establish one it is flexible,
Expansible, high performance double layer network, i.e. TRILL network.Inside TRILL network, the switch device of TRILL protocol is run
It may be simply referred to as routing bridge (full name in English: Route Bridge, English abbreviation: RB), interconnected between routing bridge and establish neighbour
Occupy relationship.The routing bridge at TRILL network edge is connect with user equipment, to receive the ethernet frame message of user equipment transmission,
Ethernet frame message is encapsulated as TRILL frame message again, is forwarded in TRILL network, when routing bridge is needed TRILL frame message
When being transmitted to user equipment, TRILL frame message is first decapsulated, ethernet frame message is obtained, ethernet frame message is transmitted to use
Family equipment.To realize that each user equipment directly carries out message forwarding interaction by TRILL network with two layers of link interconnection.
When user equipment needs to access the user equipment of other networks, due to the Internet protocol (English of the user equipment
Full name: Internet Protocol, English abbreviation: IP) address and the user equipment of other networks IP address not same
In one subnet, need individually to dispose a gateway except TRILL network.It, can be by gateway for save the cost
Function distributing on routing bridge in TRILL network, after gateway receives TRILL frame message, decapsulate TRILL frame report
Text obtains ethernet frame message, and gateway forwards ethernet frame message again, realizes the forwarding of cross-network segment three-layer routing.But by
In the function restriction of the exchange chip of routing bridge, routing bridge be cannot achieve in decapsulation TRILL frame message and then to Ethernet
Frame message carries out three layers of forwarding.
Summary of the invention
The embodiment of the present invention provides a kind of message forwarding method and routing bridge based on TRILL network, can not increase
In the case where adding gateway, realizes in decapsulation TRILL frame message and then three layers of forwarding are carried out to ethernet frame message.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
In a first aspect, providing a kind of message forwarding method based on TRILL network, comprising:
First routing bridge RB receives the first transparent interconnection of lots of links and interconnects TRILL frame message, and the first TRILL frame message includes the
One ethernet frame message and first outlet routing bridge, the first ethernet frame message include source MAC, target MAC (Media Access Control) address,
Source IP address and purpose IP address, the source MAC are the first MAC, and the target MAC (Media Access Control) address is gateway MAC address, described
Not in same network segment, the first outlet routing bridge is the first RB for source IP address and the destination IP address, described the
One RB is the previous dive routing bridge of the 3rd RB；
When determining that the first outlet routing bridge is identical as the first RB, the first RB decapsulation described first
TRILL frame message obtains the first ethernet frame message；
First RB forwards the first ethernet frame report according to the target MAC (Media Access Control) address and static mac address list item
Text is the corresponding gateway of the gateway MAC address to the 3rd RB, the 3rd RB, and the static mac address list item includes
The gateway MAC address, VLAN ID VLAN ID and first interface.
The message forwarding method based on TRILL network that above-mentioned first aspect provides, gets in the first routing bridge
After TRILL frame message, it is found that the outlet routing bridge in TRILL frame message is set as first routing bridge, the first via by
Bridge is the previous dive routing bridge of the corresponding routing bridge of gateway MAC address, and first routing bridge decapsulates TRILL frame message, obtains
To ethernet frame message, then ethernet frame message is sent to the routing bridge for being deployed with gateway function, so that being deployed with gateway function
The routing bridge of energy carries out three layers of forwarding to ethernet frame message again, so that realization is solving in the case where not increasing gateway
It encapsulates TRILL frame message and then three layers of forwarding is carried out to ethernet frame message.
Second aspect provides a kind of message forwarding method based on TRILL network, comprising:
Secondary route bridge RB receives the first ethernet frame message, and the first ethernet frame message includes source MAC, mesh
MAC Address, source IP address and purpose IP address, the source MAC be the first MAC, the target MAC (Media Access Control) address be gateway
MAC Address, the source IP address and the destination IP address be not in same network segment；
2nd RB inquires the second transparent interconnection of lots of links and interconnects TRILL MAC address entries, the 2nd TRILL MAC address entries packet
The gateway MAC address, VLAN ID VLAN ID and the first RB are included, the first RB is the previous of the 3rd RB
Jump routing bridge；
2nd RB encapsulates the first ethernet frame message and generates the first TRILL frame message, the first TRILL frame
Message includes the first ethernet frame message and first outlet routing bridge, and the first outlet routing bridge is the first RB；
2nd RB forwards the first TRILL frame message.
The message forwarding method based on TRILL network that above-mentioned second aspect provides, the purpose in ethernet frame message
When MAC Address is gateway MAC address, when ethernet frame message is encapsulated as TRILL frame message by routing bridge, by TRILL frame message
In outlet routing bridge be set as the previous dive routing bridge of the corresponding routing bridge of gateway MAC address, send TRILL frame message, make
It obtains and decapsulates TRILL frame message in outlet routing bridge, obtain ethernet frame message, outlet routing bridge again sends out ethernet frame message
It is sent to the routing bridge for being deployed with gateway function, so that the routing bridge for being deployed with gateway function carries out three layers to ethernet frame message again
Forwarding, to realize in the case where not increasing gateway in decapsulation TRILL frame message and then to ethernet frame report
Text carries out three layers of forwarding.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of message forwarding method flow chart based on TRILL network provided in an embodiment of the present invention；
Fig. 2 is a kind of TRILL network schematic diagram provided in an embodiment of the present invention；
Fig. 3 is another message forwarding method flow chart based on TRILL network provided in an embodiment of the present invention；
Fig. 4 is another message forwarding method flow chart based on TRILL network provided in an embodiment of the present invention；
Fig. 5 is another message forwarding method flow chart based on TRILL network provided in an embodiment of the present invention；
Fig. 6 is a kind of routing bridge structural schematic diagram provided in an embodiment of the present invention；
Fig. 7 is another routing bridge structural schematic diagram provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Basic principle of the invention is: gateway IP, gateway media intervention are controlled (full name in English: Media by gateway
Access Control, English abbreviation: MAC) address and VLAN ID (full name in English: virtual local area
Network identifier, English abbreviation: VLAN ID) addition TRILL frame message relevant to TRILL protocol extension
In field, proxy gateway equipment, the i.e. routing bridge adjacent with gateway are advertised to by relevant TRILL frame message.Entrance
Routing bridge is requested by address resolution protocol (full name in English: Address Resolution Protocol, English abbreviation: ARP)
Outlet routing bridge of the message from proxy gateway learning equipment to gateway MAC is proxy gateway equipment, rather than gateway itself, that
, when the ethernet frame message for being sent to gateway is encapsulated as TRILL frame message by entrance routing bridge, by TRILL frame message
Outlet routing bridge is set as proxy gateway equipment, and proxy gateway equipment receives the TRILL frame message that outlet routing bridge is itself
When, decapsulation TRILL frame message obtains as ethernet frame message, then forwards ethernet frame message to gateway, gateway
Three layers of forwarding are carried out to ethernet frame message again, so that gateway is deployed on routing bridge.
Wherein, entrance routing bridge is the routing bridge that ethernet frame message is encapsulated as to TRILL frame message.Exporting routing bridge is
TRILL frame message is descapsulated into ethernet frame message.Entrance routing bridge and outlet routing bridge can use the pet name of routing bridge
(Nickname) it identifies, i.e. RB.
Gateway is the equipment with gateway function, and gateway of the present invention refers to being deployed with gateway function
Routing bridge, i.e., the equipment when realizing gateway function be gateway, realize forward TRILL frame message when be routing bridge.
The embodiment of the present invention provides a kind of message forwarding method based on TRILL network, as shown in Figure 1, comprising:
Step 101, secondary route bridge RB receive the first ethernet frame message.
First ethernet frame message includes source MAC, target MAC (Media Access Control) address, source IP address and purpose IP address, source MAC
Address is the first MAC, and target MAC (Media Access Control) address is gateway MAC address, and the source IP address and the destination IP address be not in same net
In section.
Step 102, the 2nd RB inquire the second transparent interconnection of lots of links and interconnect TRILL MAC address entries.
2nd TRILL MAC address entries include gateway MAC address, VLAN ID and the first RB, and the first RB is the third
The previous dive routing bridge of RB, the 3rd RB are the corresponding gateway of the gateway MAC address.
Step 103, the 2nd RB encapsulate the first ethernet frame message and generate the first TRILL frame message.
First TRILL frame message includes the first ethernet frame message and first outlet routing bridge, and first outlet routing bridge is
First RB.
Step 104, the 2nd RB forward the first TRILL frame message.
Step 105, the first routing bridge RB receive the first TRILL frame message.
First TRILL frame message includes the first ethernet frame message and first outlet routing bridge, the first ethernet frame message
Including source MAC, target MAC (Media Access Control) address, source IP address and purpose IP address, source MAC is the first MAC, target MAC (Media Access Control) address
For gateway MAC address, the source IP address and the destination IP address be not in same network segment.
Step 106, when determining that first outlet routing bridge is identical as the first RB, the first RB decapsulate the first TRILL frame report
Text obtains the first ethernet frame message.
First RB is the previous dive routing bridge of the 3rd RB, and the 3rd RB is the corresponding net of the gateway MAC address
Close equipment.
Step 107, the first RB forward the first ethernet frame message to arrive according to target MAC (Media Access Control) address and static mac address list item
3rd RB.
Static mac address list item includes gateway MAC address, VLAN ID and first interface.
Message forwarding method provided by the invention based on TRILL network, the target MAC (Media Access Control) address in ethernet frame message
When for gateway MAC address, when ethernet frame message is encapsulated as TRILL frame message by routing bridge, by the outlet in TRILL frame message
Routing bridge is set as the previous dive routing bridge of the corresponding routing bridge of gateway MAC address, TRILL frame message is sent, so that exporting
Routing bridge decapsulates TRILL frame message, obtains ethernet frame message, and outlet routing bridge sends deployment for ethernet frame message again
There is the routing bridge of gateway function, so that the routing bridge for being deployed with gateway function carries out three layers of forwarding to ethernet frame message again, from
And in the case where not increasing gateway, it realizes in decapsulation TRILL frame message and then three is carried out to ethernet frame message
Layer forwarding.
The embodiment of the present invention provides a kind of TRILL network configuration diagram, as shown in Figure 2, comprising: routing bridge 1, routing bridge
2, routing bridge 3 and routing bridge 4.Wherein, routing bridge 3 is connect with routing bridge 2, and routing bridge 4 is connect with routing bridge 2, routing bridge 2 and road
It is connected by bridge 1.Gateway function is disposed on routing bridge 1, routing bridge 1 is gateway when realizing gateway function, to ethernet frame
Message carries out three layers of forwarding, is routing bridge realizing when forwarding TRILL frame message.
Routing bridge 3 can also connect user equipment 1, routing bridge of the routing bridge 3 as TRILL network edge.Routing bridge 4 is also
It can connect user equipment 2, routing bridge of the routing bridge 4 as TRILL network edge.Routing bridge 3 and routing bridge 4 are also entrance road
By bridge or outlet routing bridge.
When user equipment 1 sends ethernet frame message to user equipment 2, which includes source MAC
And target MAC (Media Access Control) address, source MAC are the MAC Address of user equipment 1, target MAC (Media Access Control) address is the MAC Address of user equipment 2.
Routing bridge 3 receives the ethernet frame message of the transmission of user equipment 1, inquiry mac address table discovery user equipment 2
The corresponding outlet routing bridge of MAC Address is routing bridge 4, and ethernet frame message is encapsulated as TRILL frame message.In general, TRILL frame
Message includes internal layer ethernet frame, the head TRILL and outer layer Ethernet frame head three parts.Internal layer ethernet frame includes user equipment
The initial data frame of sending is ethernet frame.The head TRILL include entrance routing bridge the pet name (Nickname) and Exit Road by
The pet name of bridge.Outer layer Ethernet frame head includes the source MAC and target MAC (Media Access Control) address of routing bridge, for inside TRILL network
Realize Layer 2 data forwarding, source MAC and target MAC (Media Access Control) address can be reset in hop-by-hop routing bridge repeating process.
When ethernet frame message is encapsulated as TRILL frame message by routing bridge 3, the entrance routing bridge that the head TRILL includes is
RB3, outlet routing bridge are RB4, and source MAC that outer layer Ethernet frame head includes is the MAC Address of routing bridge 3, purpose MAC
Location is the MAC Address of routing bridge 2.TRILL frame message is sent to routing bridge 2.
After routing bridge 2 receives TRILL frame message, TRILL forwarding is inquired according to the outlet routing bridge RB4 on the head TRILL
Table, obtains the outlet of TRILL frame message, and the source MAC that replacement outer layer Ethernet frame head includes is the MAC Address of routing bridge 2, mesh
MAC Address be routing bridge 4 MAC Address, TRILL frame message is sent to routing bridge 4.
After routing bridge 4 receives TRILL frame message, checks that discovery outlet routing bridge is itself RB4, then peel TRILL head off
Portion obtains original Ethernet frame, then checks original Ethernet frame head, is forwarded original Ethernet frame according to target MAC (Media Access Control) address
To user equipment 2.
User equipment 2 receives the ethernet frame message of the transmission of user equipment 1.
Routing bridge 1 can also connect user equipment 3, routing bridge and entrance of the routing bridge 1 as TRILL network edge
Routing bridge or outlet routing bridge.
Assuming that the MAC Address of user equipment 1 is MAC1, IP address 10.1.1.251；The MAC Address of user equipment 3 is
MAC3, IP address 20.1.1.253.When user equipment 1 sends ethernet frame message to user equipment 3, as shown in figure 3, root
According to the message forwarding method provided by the invention based on TRILL network, following steps are executed:
Step 201, user equipment 1 send ethernet frame message to user equipment 3.
Ethernet frame message includes source MAC, target MAC (Media Access Control) address, source IP address and purpose IP address, source MAC
For the MAC Address of user equipment 1, i.e. MAC1, target MAC (Media Access Control) address is gateway MAC address, and source IP address is the IP of user equipment 1
Address, i.e. 10.1.1.251, purpose IP address are the IP address of user equipment 3, i.e. 20.1.1.253.
Step 202, routing bridge 3 receive the ethernet frame message that user equipment 1 is sent.
Step 203, routing bridge 3 inquire the 2nd TRILL MAC address entries.
After routing bridge 3 receives the ethernet frame message of the transmission of user equipment 1, for gateway MAC according to target MAC (Media Access Control) address
The 2nd TRILL MAC address entries are inquired in location, and the 2nd TRILL MAC address entries include gateway MAC address, VLAN ID and routing bridge
2.Routing bridge 2 is the previous dive routing bridge of the corresponding routing bridge of gateway MAC address.
Step 204, routing bridge 3 encapsulate ethernet frame message and generate the first TRILL frame message.
Ethernet frame message is encapsulated as the first TRILL frame message by routing bridge 3.
Internal layer ethernet frame in first TRILL frame message includes the ethernet frame message that user equipment 1 is sent.
The entrance routing bridge that the head TRILL includes is routing bridge 3, and outlet routing bridge is routing bridge 2.
Outer layer in TRILL frame head portion also encapsulates one layer of Ethernet frame head, and Ethernet frame head includes source MAC and mesh
MAC Address, source MAC be routing bridge 3 MAC Address, target MAC (Media Access Control) address be routing bridge 2 MAC Address.
Step 205, routing bridge 3 send the first TRILL frame message to routing bridge 2.
Step 206, routing bridge 2 receive the first TRILL frame message that routing bridge 3 is sent.
Step 207, routing bridge 2 judge to export routing bridge and whether routing bridge 2 is identical.
If exporting routing bridge and routing bridge 2 not being identical, step 208 is executed.If it is identical as routing bridge 2 to export routing bridge, hold
Row step 209.
Step 208, routing bridge 2 continue to forward the first TRILL frame message.
Step 209, routing bridge 2 decapsulate the first TRILL frame message, obtain ethernet frame message.
After routing bridge 2 receives the first TRILL frame message of the transmission of routing bridge 3, find outlet routing bridge for routing bridge 2 certainly
Oneself obtains ethernet frame message after removing TRILL frame head portion.
Step 210, routing bridge 2 send ethernet frame message to routing bridge 1.
The target MAC (Media Access Control) address that routing bridge 2 includes according to internal layer ethernet frame, looks into mac address table, finds static mac address
List item, the static mac address list item include gateway MAC address, VLAN ID and interface 1, routing bridge 2 directly by interface 1 to
Routing bridge 1 sends ethernet frame message, and learns the MAC Address of user equipment 1.Routing bridge 1 is the net for being deployed with gateway function
Equipment is closed, the MAC Address of routing bridge 1 is gateway MAC address.
Step 211, routing bridge 1 receive the ethernet frame message that routing bridge 2 is sent.
Routing bridge 1 is after the ethernet frame message that local interface 2 receives that routing bridge 2 is sent, according to ethernet frame message packet
The source MAC included learns the MAC Address of user equipment 1, generation dynamic MAC address list item, including MAC1, VLAN ID and connects
Mouth 2.
Step 212, routing bridge 1 send ethernet frame message to user equipment 3.
According to purpose IP address in the IP of ethernet frame message head, determines three-layer routing forwarding, first learn user equipment 1
ARP entry, user equipment 3 is being transmitted to according to three-layer routing checking result.
Before step 201, as shown in figure 4, the method also includes following steps:
Step 213,1 broadcast ARP request message of user equipment.
Since user equipment 1 and user equipment 3 be not in the same network segment, user equipment 1 sends ether to user equipment 3
When net frame message, the forwarding by gateway is needed, user equipment 3 can just receive the ethernet frame of the transmission of user equipment 1
Message.User equipment 1 finds the ARP entry of the local not IP address 10.1.1.1 of gateway, and user equipment 1 sends ARP
Request message, ARP request message are ethernet frame message.
It include source MAC and target MAC (Media Access Control) address in the Ethernet frame head of ARP request message, source MAC sets for user
Standby 1 MAC Address, i.e. MAC1, target MAC (Media Access Control) address are broadcast address FFFF:FFFF:FFFF.
The load of ARP request message includes transmitting terminal source MAC, transmitting terminal source IP address, destination-mac address and target
IP address, transmitting terminal source MAC are the MAC Address of user equipment 1, i.e. MAC1, transmitting terminal source IP address is user equipment 1
IP address, i.e. 10.1.1.251, destination-mac address 0, target ip address are the gateway ip address of gateway, i.e.,
10.1.1.1。
Step 214, routing bridge 3 receive the ARP request message that user equipment 1 is broadcasted.
Step 215, routing bridge 3 encapsulate ARP request message and generate the 3rd TRILL frame message.
After routing bridge 3 receives the ARP request message of the transmission of user equipment 1, learn the MAC Address of user equipment 1, i.e.,
MAC1 is broadcast address further according to target MAC (Media Access Control) address, ARP request message is encapsulated as the 3rd TRILL frame message, entire
It is broadcasted in TRILL network.
Internal layer ethernet frame in 3rd TRILL frame message includes ARP request message.
The entrance routing bridge that the head TRILL includes is routing bridge 3, and outlet routing bridge is the tree root of TRILL distribution tree.
Outer layer in TRILL frame head portion also encapsulates one layer of Ethernet frame head, and Ethernet frame head includes source MAC and mesh
MAC Address, source MAC be routing bridge 3 MAC Address, target MAC (Media Access Control) address be routing bridge 2 MAC Address.
Step 216, routing bridge 3 send the 3rd TRILL frame message to routing bridge 2.
Step 217, routing bridge 2 receive the 3rd TRILL frame message that routing bridge 3 is sent.
Step 218, routing bridge 2 decapsulate the 3rd TRILL frame message, obtain target ip address and MAC1.
After routing bridge 2 receives the 3rd TRILL frame message of the transmission of routing bridge 3, ARP is found after removing TRILL frame head portion
The Target IP of request message be gateway gateway ip address, i.e. 10.1.1.1, then no longer down hop routing bridge 1 or routing
Bridge 4 forwards ARP request message, and arp reply message is replied in the processing of 2 local agent of routing bridge.Routing bridge 2 terminates the 3rd TRILL frame
The forwarding of message.
Step 219, routing bridge 2 generate the first TRILL MAC address entries according to MAC1.
Routing bridge 2 first learns the MAC Address of user equipment 1, i.e. MAC1 generates the first TRILL MAC address entries, including
MAC1, VLAN ID and outlet routing bridge are routing bridge 3.
It should be noted that information needed for agency sends arp reply message, including gateway IP is stored in advance in routing bridge 2
Address, gateway MAC address and vlan information.Before the 3rd TRILL frame message that routing bridge 2 receives that routing bridge 3 is sent, routing
Bridge 1, i.e. gateway dose gateway ip address, gateway MAC address and VLAN ID in TRILL frame relevant to TRILL protocol
In the extended field of message, proxy gateway equipment, i.e. routing bridge 2 are advertised to by relevant TRILL frame message, routing bridge 2 from
It is local to generate static mac address list item, including gateway MAC address, VLAN ID and interface after interface 1 receives TRILL frame message
1, and locally open the ARP proxy of gateway ip address.
The embodiment of the present invention do not limit TRILL protocol message extension mode, such as can to TRILL hello packet into
Row extension increases new message field (MFLD), and gateway ip address, gateway MAC address, VLAN ID encapsulation is entered.
Step 220, routing bridge 2 generate arp reply message.
It include source MAC and target MAC (Media Access Control) address in the Ethernet frame head of arp reply message, source MAC is gateway
MAC Address, target MAC (Media Access Control) address are the MAC Address of user equipment 1, i.e. MAC1.
The load of arp reply message includes transmitting terminal source MAC, transmitting terminal source IP address, destination-mac address and target
IP address, transmitting terminal source MAC are gateway MAC address, and transmitting terminal source IP address is gateway ip address, i.e. 10.1.1.1, mesh
The MAC Address that MAC Address is user equipment 1, i.e. MAC1 are marked, target ip address is the IP address of user equipment 1, i.e.,
10.1.1.251。
Step 221, routing bridge 2 encapsulate arp reply message and generate the 4th TRILL frame message.
Routing bridge 2 inquires first generated in step 219 according to the target MAC (Media Access Control) address of arp reply message, i.e. MAC1
TRILL MAC address entries, including MAC1, VLAN ID and outlet routing bridge are routing bridge 3, and arp reply message is encapsulated as the 4th
TRILL frame message is sent.
Internal layer ethernet frame in 4th TRILL frame message includes arp reply message.
The entrance routing bridge that the head TRILL includes is routing bridge 2, and outlet routing bridge is routing bridge 3.
Outer layer in TRILL frame head portion also encapsulates one layer of Ethernet frame head, and Ethernet frame head includes source MAC and mesh
MAC Address, source MAC be routing bridge 2 MAC Address, target MAC (Media Access Control) address be routing bridge 3 MAC Address.
Step 222, routing bridge 2 send the 4th TRILL frame message to routing bridge 3.
Step 223, routing bridge 3 receive the 4th TRILL frame message that routing bridge 2 is sent.
Step 224, routing bridge 3 judge to export routing bridge and whether routing bridge 3 is identical.
If exporting routing bridge and routing bridge 3 not being identical, step 225 is executed；If it is identical as routing bridge 3 to export routing bridge, hold
Row step 226.
Step 225, routing bridge 3 continue to forward the 4th TRILL frame message.
Step 226, routing bridge 3 decapsulate the 4th TRILL frame Receive message arp reply message.
Routing bridge 3 receives the 4th TRILL frame message that routing bridge 2 is sent, and discovery outlet routing bridge is routing bridge 3 oneself,
Firstly, removal TRILL frame head portion, is reduced to ethernet frame message, i.e. arp reply message for the 4th TRILL frame message.
Step 227, routing bridge 3 generate the 2nd TRILL MAC address entries.
Routing bridge 3 learns gateway MAC address, generates the 2nd TRILL MAC address entries, including gateway MAC address, VLAN ID
It is routing bridge 2 with outlet routing bridge.
Step 228, routing bridge 3 send arp reply message to user equipment 1.
Step 229, user equipment 1 receive the arp reply message that routing bridge 3 is sent.
User equipment 1 receives the arp reply message of ethernet frame format, and the ARP entry of gateway ip address, i.e. net are arrived in study
Close the corresponding gateway MAC address of IP address.
When user equipment 3 sends ethernet frame message to user equipment 1, as shown in figure 5, the base provided according to the present invention
In the message forwarding method of TRILL network, following steps are executed:
Step 301, user equipment 3 send ethernet frame message to user equipment 1.
Step 302, routing bridge 1 receive the ethernet frame message that user equipment 3 is sent.
Routing bridge 1 inquires the ARP entry of user equipment 1, ethernet frame head is arranged, ethernet frame message includes source
MAC Address, target MAC (Media Access Control) address, source IP address and purpose IP address, source MAC are gateway MAC address, and target MAC (Media Access Control) address is
The MAC Address of user equipment 1, i.e. MAC1, source IP address are the IP address of user equipment 3, i.e. 20.1.1.253, purpose IP address
For the IP address of user equipment 1, i.e. 10.1.1.251.The target MAC (Media Access Control) address is what user equipment 1 was sent to user equipment 3
Source MAC in ethernet frame message.
Step 303, routing bridge 1 forward ethernet frame message to routing bridge 2.
Step 304, routing bridge 2 receive the ethernet frame message that routing bridge 1 forwards.
Step 305, routing bridge 2 inquire the first TRILL MAC address entries.
Routing bridge 2 receives ethernet frame message from interface 1, inquires the first TRILL MAC table according to target MAC (Media Access Control) address
, including MAC1, VLAN ID and outlet routing bridge are routing bridge 3, and ethernet frame message is encapsulated as the 2nd TRILL frame message.
Step 306, routing bridge 2 encapsulate ethernet frame message and generate the 2nd TRILL frame message.
Internal layer ethernet frame in 2nd TRILL frame message includes the ethernet frame message that user equipment 3 is sent.
The entrance routing bridge that the head TRILL includes is routing bridge 2, and outlet routing bridge is routing bridge 3.
Outer layer in TRILL frame head portion also encapsulates one layer of Ethernet frame head, and Ethernet frame head includes source MAC and mesh
MAC Address, source MAC be routing bridge 2 MAC Address, target MAC (Media Access Control) address be routing bridge 3 MAC Address.
Step 307, routing bridge 2 send the 2nd TRILL frame message to routing bridge 3.
Step 308, routing bridge 3 receive the 2nd TRILL frame message that routing bridge 2 is sent.
Step 309, routing bridge 3 judge to export routing bridge and whether routing bridge 3 is identical.
If exporting routing bridge and routing bridge 3 not being identical, step 310 is executed.If it is identical as routing bridge 3 to export routing bridge, hold
Row step 311.
Step 310, routing bridge 3 continue to forward the 2nd TRILL frame message.
Step 311, routing bridge 3 decapsulate the 2nd TRILL frame message, obtain ethernet frame message.
After routing bridge 3 receives the 2nd TRILL frame message of the transmission of routing bridge 2, find outlet routing bridge for routing bridge 3 certainly
Oneself obtains ethernet frame message after removing TRILL frame head portion.
Step 312, routing bridge 3 forward ethernet frame message to user equipment 1.
It should be noted that it is the ethernet frame of user equipment 1 that routing bridge 1, which forwards purpose IP address, before step 301
When message, if searching the ARP entry less than user equipment 1, temporary cache message first sends ARP request.
Routing bridge 1 sends ARP request message, and ARP request message includes target MAC (Media Access Control) address and source MAC, purpose MAC
Address is broadcast address FFFF:FFFF:FFFF, and source MAC is gateway MAC address.ARP request message is ethernet frame report
Text.
After routing bridge 2 receives ARP request message, according to target MAC (Media Access Control) address, it is encapsulated as TRILL frame in entire TRILL
It is broadcasted in net, wherein the internal layer ethernet frame in TRILL frame message includes ARP request message, and entrance routing bridge is routing bridge 2,
The tree root that routing bridge is multicast distribution tree is exported, the outer layer in TRILL frame head portion also encapsulates one layer of Ethernet frame head, Ethernet
Frame head includes source MAC and target MAC (Media Access Control) address, and source MAC is the MAC Address of routing bridge 2, and target MAC (Media Access Control) address is routing
The MAC Address of bridge 3.
After the reception of routing bridge 3 is packaged with the TRILL frame of ARP request message, after removing the head TRILL, according to internal layer ether
The source MAC learned addresses of net frame, generate the 2nd TRILLMAC list item, including gateway MAC address, VLAN ID, Exit Road by
Bridge is routing bridge 2.The broadcast of internal layer ethernet frame is transmitted to user equipment 1 by routing bridge 3.
User equipment 1 receives ARP request, sends arp reply message, wherein target MAC (Media Access Control) address is gateway MAC address, source
MAC Address is the MAC Address of user equipment 1, i.e. MAC1.
After routing bridge 3 receives arp reply, the 2nd TRILLMAC list item, including gateway MAC are found according to target MAC (Media Access Control) address
Address, VLAN ID, outlet routing bridge are routing bridge 2, are encapsulated as TRILL frame, wherein the internal layer Ethernet in TRILL frame message
Frame includes arp reply message, and entrance routing bridge is routing bridge 3, and outlet routing bridge is routing bridge 2, in the outer of TRILL frame head portion
Layer also encapsulates one layer of Ethernet frame head, and Ethernet frame head includes source MAC and target MAC (Media Access Control) address, and source MAC is routing
The MAC Address of bridge 3, target MAC (Media Access Control) address are the MAC Address of routing bridge 2.
Routing bridge 2 receives TRILL frame, after removing the head TRILL, finds corresponding gateway MAC table according to target MAC (Media Access Control) address
, internal layer Ether frame is directly forwarded to routing bridge 1.
Routing bridge 1 receives arp reply message, and the ARP entry of user equipment 1 is arrived in study.
The embodiment of the present invention provides a kind of first routing bridge 40, as shown in Figure 6, comprising:
Receiving unit 401 interconnects TRILL frame message, the first TRILL frame message for receiving the first transparent interconnection of lots of links
Including the first ethernet frame message and first outlet routing bridge, the first ethernet frame message includes the intervention control of source media
MAC Address, target MAC (Media Access Control) address, source Internet protocol IP address and purpose IP address, the source MAC is the first MAC, described
Target MAC (Media Access Control) address is gateway MAC address, and the source IP address and the destination IP address be not in same network segment；
Processing unit 402, for when determining that the first outlet routing bridge is identical as the first RB, described in decapsulation
First TRILL frame message, obtains the first ethernet frame message, and the first RB is the previous dive routing bridge of the 3rd RB, institute
Stating the 3rd RB is the corresponding gateway of the gateway MAC address；
Transmission unit 403, for forwarding first ether according to the target MAC (Media Access Control) address and static mac address list item
For net frame message to the 3rd RB, the static mac address list item includes the gateway MAC address, VLAN ID VLAN ID
And first interface.
Message forwarding method provided in an embodiment of the present invention based on TRILL network, gets in the first routing bridge
After TRILL frame message, it is found that the outlet routing bridge in TRILL frame message is set as first routing bridge, the first via by
Bridge is the previous dive routing bridge of the corresponding routing bridge of gateway MAC address, and first routing bridge decapsulates TRILL frame message, obtains
To ethernet frame message, then ethernet frame message is sent to the routing bridge for being deployed with gateway function, so that being deployed with gateway function
The routing bridge of energy carries out three layers of forwarding to ethernet frame message again, so that realization is solving in the case where not increasing gateway
It encapsulates TRILL frame message and then three layers of forwarding is carried out to ethernet frame message.
The receiving unit 401 is also used to receive the second ethernet frame message, second ether from the first interface
Net frame message includes source MAC, target MAC (Media Access Control) address, source IP address and purpose IP address, and the source MAC is gateway MAC
Address, the target MAC (Media Access Control) address are the first MAC, and the source IP address and the destination IP address be not in same network segment；
The processing unit 402, is also used to inquire the first TRILL MAC address entries, and the first TRILL MAC address entries include
First MAC, VLAN ID and the 2nd RB；
The processing unit 402 is also used to encapsulate the second ethernet frame message and generates the 2nd TRILL frame message, institute
Stating the 2nd TRILL frame message includes the second ethernet frame message and second outlet routing bridge, the second outlet routing bridge
For the 2nd RB；
The transmission unit 403 is also used to forward the 2nd TRILL frame message.
The receiving unit 401, is also used to receive the 3rd TRILL frame message, and the 3rd TRILL frame message includes
The tree root of ARP request message, first entrance routing bridge and TRILL distribution tree, the first entrance routing bridge are the 2nd RB,
The ARP request message includes source MAC, target MAC (Media Access Control) address, transmitting terminal source MAC, transmitting terminal source IP address, target
MAC Address and target ip address, the source MAC are the first MAC, and the target MAC (Media Access Control) address is broadcast address, the transmission
End source MAC is the first MAC, and the transmitting terminal source IP address is the first IP address, and the destination-mac address is 0, the Target IP
Address is gateway ip address；
The processing unit 402 is also used to decapsulate the 3rd TRILL frame message, obtain the target ip address and
First MAC；
The processing unit 402, is also used to generate the first TRILL MAC address entries according to the first MAC, and described the
One TRILL MAC address entries include the first MAC, VLANID and the 2nd RB；
The processing unit 402, is also used to generate arp reply message, and the arp reply message includes source MAC, mesh
MAC Address, transmitting terminal source MAC, transmitting terminal source IP address, destination-mac address and target ip address, the source MAC
Location is gateway MAC address, and the target MAC (Media Access Control) address is the first MAC, and the transmitting terminal source MAC is gateway MAC address, institute
Stating transmitting terminal source IP address is gateway ip address, and the destination-mac address is the first MAC, and the target ip address is the first IP；
The processing unit 402 is also used to that it is raw to encapsulate the arp reply message according to the first TRILL MAC address entries
At the 4th TRILL frame message, the 4th TRILL frame message includes the arp reply message, second entrance routing bridge and third
Routing bridge is exported, second entrance routing bridge is the first RB, and third outlet routing bridge is the 2nd RB；
The transmission unit 403 is also used to forward the 4th TRILL frame message.
The receiving unit 401 is also used to receive the TRILL message that the 3rd RB is sent from the first interface, described
TRILL message includes gateway MAC address, gateway ip address and VLAN ID；
The processing unit 402, is also used to generate local static mac address list item, and the static mac address list item includes
Gateway MAC address, VLAN ID and the first interface.
The embodiment of the present invention provides a kind of secondary route bridge 50, as shown in fig. 7, comprises:
Receiving unit 501, for receiving the first ethernet frame message, the first ethernet frame message includes source MAC
Location, target MAC (Media Access Control) address, source IP address and purpose IP address, the source MAC are the first MAC, and the target MAC (Media Access Control) address is
Gateway MAC address, the source IP address and the destination IP address be not in same network segment；
Processing unit 502 interconnects TRILL MAC address entries, the 2nd TRILL MAC for inquiring the second transparent interconnection of lots of links
List item includes the gateway MAC address, VLAN ID VLAN ID and the first RB, before the first RB is the 3rd RB
One jumps routing bridge, and the 3rd RB is the corresponding gateway of the gateway MAC address；
The processing unit 502 is also used to encapsulate the first ethernet frame message and generates the first TRILL frame message, institute
Stating the first TRILL frame message includes the first ethernet frame message and first outlet routing bridge, the first outlet routing bridge
For the first RB；
Transmission unit 503, for forwarding the first TRILL frame message.
Message forwarding method provided in an embodiment of the present invention based on TRILL network, the purpose in ethernet frame message
When MAC Address is gateway MAC address, when ethernet frame message is encapsulated as TRILL frame message by routing bridge, by TRILL frame message
In outlet routing bridge be set as the previous dive routing bridge of the corresponding routing bridge of gateway MAC address, send TRILL frame message, make
It obtains and decapsulates TRILL frame message in outlet routing bridge, obtain ethernet frame message, outlet routing bridge again sends out ethernet frame message
It is sent to the routing bridge for being deployed with gateway function, so that the routing bridge for being deployed with gateway function carries out three layers to ethernet frame message again
Forwarding, to realize in the case where not increasing gateway in decapsulation TRILL frame message and then to ethernet frame report
Text carries out three layers of forwarding.
The receiving unit 501, is also used to receive the 2nd TRILL frame message, and the 2nd TRILL frame message includes second
Ethernet frame message and second outlet routing bridge, the second ethernet frame message include source MAC, target MAC (Media Access Control) address, source
IP address and purpose IP address, the source MAC are gateway MAC address, and the target MAC (Media Access Control) address is the first MAC, the mesh
IP address be the first IP, the source IP address and the destination IP address be not in same network segment, second outlet routing
Bridge is the 2nd RB；
The processing unit 502 is also used to when determining that the second outlet routing bridge is identical as the 2nd RB, deblocking
The 2nd TRILL frame message is filled, the second ethernet frame message is obtained；
The transmission unit 503 is also used to the 2nd RB according to the target MAC (Media Access Control) address and forwards second Ethernet
Frame message.
The receiving unit 501, is also used to receive ARP request message, and the ARP request message includes source MAC, mesh
MAC Address, transmitting terminal source MAC, transmitting terminal source IP address, destination-mac address and target ip address, the source MAC
Location is the first MAC, and the target MAC (Media Access Control) address is broadcast address, and the transmitting terminal source MAC is the first MAC, the transmitting terminal source IP
For the first IP, the destination-mac address is 0, and the target ip address is gateway ip address；
The processing unit 502 is also used to encapsulate the ARP request message and generates the 3rd TRILL frame message, the third
TRILL frame message includes the tree root of the ARP request message, first entrance routing bridge and TRILL distribution tree, the first entrance
Routing bridge is the 2nd RB；
The transmission unit 503 is also used to forward the 3rd TRILL frame message；
The receiving unit 501 is also used to receive the 4th TRILL frame message, and the 4th TRILL frame message includes ARP
Response message, second entrance routing bridge and third export routing bridge, and second entrance routing bridge is the first RB, the third Exit Road
It is the 2nd RB by bridge, the arp reply message includes source MAC, target MAC (Media Access Control) address, transmitting terminal source MAC, hair
Sending end source IP address, destination-mac address and target ip address, the source MAC are gateway MAC address, the purpose MAC
Location is the first MAC, and the transmitting terminal source MAC is gateway MAC address, and the transmitting terminal source IP address is gateway ip address,
The destination-mac address is the first MAC, and the target ip address is the first IP；
The processing unit 502 is also used to the deblocking when determining that third outlet routing bridge is identical as the 2nd RB
The 4th TRILL frame message is filled, the arp reply message is obtained；
The processing unit 502 is also used to generate the 2nd TRILL MAC address entries, the 2nd TRILL MAC address entries
It is the previous dive routing bridge of the 3rd RB including the gateway MAC address, VLAN ID and the first RB, the first RB, it is described
3rd RB is the corresponding gateway of the gateway MAC address；
The transmission unit 503 is also used to send the arp reply message to the corresponding equipment of the first IP.
It is apparent to those skilled in the art that for convenience and simplicity of description, the device of foregoing description
It with the specific work process of unit, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: ROM, RAM, magnetic disk 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, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (12)
1. a kind of message forwarding method based on TRILL network characterized by comprising
First routing bridge RB receives the first transparent interconnection of lots of links and interconnects TRILL frame message, and the first TRILL frame message includes first
Ethernet frame message and first outlet routing bridge, the first ethernet frame message include source media intervention control MAC Address, mesh
MAC Address, source Internet protocol IP address and purpose IP address, the source MAC be the first MAC, the target MAC (Media Access Control) address
For gateway MAC address, the source IP address and the destination IP address be not in same network segment；
When determining that the first outlet routing bridge is identical as the first RB, the first RB decapsulates the first TRILL
Frame message obtains the first ethernet frame message, and the first RB is the previous dive routing bridge of the 3rd RB, and the 3rd RB is
The corresponding gateway of the gateway MAC address；
First RB forwards the first ethernet frame message to arrive according to the target MAC (Media Access Control) address and static mac address list item
3rd RB, the static mac address list item include the gateway MAC address, VLAN ID VLAN ID and first
Interface.
2. the method according to claim 1, wherein in the first RB according to the target MAC (Media Access Control) address and quiet
After state MAC Address list item forwards the first ethernet frame message, the method also includes:
First RB receives the second ethernet frame message from the first interface, and the second ethernet frame message includes source
MAC Address, target MAC (Media Access Control) address, source IP address and purpose IP address, the source MAC are gateway MAC address, the purpose
MAC Address is the first MAC, and the source IP address and the destination IP address be not in same network segment；
First RB inquires the first TRILL MAC address entries, and the first TRILL MAC address entries include the first MAC, VLAN ID
With the 2nd RB；
First RB encapsulates the second ethernet frame message and generates the 2nd TRILL frame message, the 2nd TRILL frame message
Including the second ethernet frame message and second outlet routing bridge, the second outlet routing bridge is the 2nd RB；
First RB forwards the 2nd TRILL frame message.
3. according to the method described in claim 2, it is characterized in that, receiving the first TRILL frame report in the first routing bridge RB
Before text, the method also includes:
First RB receives the 3rd TRILL frame message, and the 3rd TRILL frame message includes Address Resolution Protocol ARP request
The tree root of message, first entrance routing bridge and TRILL distribution tree, the first entrance routing bridge are the 2nd RB, the ARP
Request message includes source MAC, target MAC (Media Access Control) address, transmitting terminal source MAC, transmitting terminal source IP address, destination-mac address
And target ip address, the source MAC are the first MAC, the target MAC (Media Access Control) address is broadcast address, the transmitting terminal source MAC
For the first MAC, the transmitting terminal source IP address is the first IP address, and the destination-mac address is 0, and the target ip address is
Gateway ip address；
First RB decapsulates the 3rd TRILL frame message, obtains the target ip address and the first MAC；
First RB generates the first TRILL MAC address entries, the first TRILL MAC address entries according to the first MAC
Including the first MAC, VLAN ID and the 2nd RB；
First RB generates arp reply message, and the arp reply message includes source MAC, target MAC (Media Access Control) address, transmitting terminal
Source MAC, transmitting terminal source IP address, destination-mac address and target ip address, the source MAC are gateway MAC address,
The target MAC (Media Access Control) address is the first MAC, and the transmitting terminal source MAC is gateway MAC address, the transmitting terminal source IP address
For gateway ip address, the destination-mac address is the first MAC, and the target ip address is the first IP；
First RB encapsulates the arp reply message and generates the 4th TRILL frame report according to the first TRILL MAC address entries
Text, the 4th TRILL frame message include the arp reply message, second entrance routing bridge and third outlet routing bridge, second
Entrance routing bridge is the first RB, and third outlet routing bridge is the 2nd RB；
First RB forwards the 4th TRILL frame message.
4. method described in any one of -3 claims according to claim 1, which is characterized in that receive third in the first RB
Before TRILL frame message, the method also includes:
First RB receives the TRILL message that the 3rd RB is sent from the first interface, and the TRILL message includes gateway
MAC Address, gateway ip address and VLAN ID；
First RB generates local static mac address list item, and the static mac address list item includes gateway MAC address, VLAN
ID and the first interface.
5. a kind of message forwarding method based on TRILL network characterized by comprising
Secondary route bridge RB receives the first ethernet frame message, and the first ethernet frame message includes the intervention control of source media
MAC Address, target MAC (Media Access Control) address, source Internet protocol IP address and purpose IP address, the source MAC is the first MAC, described
Target MAC (Media Access Control) address is gateway MAC address, and the source IP address and the destination IP address be not in same network segment；
2nd RB inquires the second transparent interconnection of lots of links and interconnects TRILL MAC address entries, and the 2nd TRILL MAC address entries include institute
Gateway MAC address, VLAN ID VLAN ID and the first RB are stated, the first RB is the previous dive routing bridge of the 3rd RB,
3rd RB is the corresponding gateway of the gateway MAC address；
2nd RB encapsulates the first ethernet frame message and generates the first TRILL frame message, the first TRILL frame message
Including the first ethernet frame message and first outlet routing bridge, the first outlet routing bridge is the first RB；
2nd RB forwards the first TRILL frame message.
6. according to the method described in claim 5, it is characterized in that, forwarding the first TRILL frame message in the 2nd RB
Later, the method also includes:
2nd RB receives the 2nd TRILL frame message, and the 2nd TRILL frame message includes the second ethernet frame message and the
Two outlet routing bridges, the second ethernet frame message includes source MAC, target MAC (Media Access Control) address, source IP address and destination IP
Location, the source MAC are gateway MAC address, and the target MAC (Media Access Control) address is the first MAC, the source IP address and the purpose
For IP address not in same network segment, the second outlet routing bridge is the previous dive of the corresponding routing bridge of the gateway MAC address
Routing bridge；
When determining that the second outlet routing bridge is identical as the 2nd RB, the 2nd RB decapsulates the 2nd TRILL
Frame message obtains the second ethernet frame message；
2nd RB forwards the second ethernet frame message according to the target MAC (Media Access Control) address.
7. according to the method described in claim 6, it is characterized in that, receiving the first ethernet frame report in the secondary route bridge RB
Before text, the method also includes:
2nd RB receives Address Resolution Protocol ARP request message, and the ARP request message includes source MAC, purpose
MAC Address, transmitting terminal source MAC, transmitting terminal source IP address, destination-mac address and target ip address, the source MAC
For the first MAC, the target MAC (Media Access Control) address is broadcast address, and the transmitting terminal source MAC is the first MAC, and the transmitting terminal source IP is
First IP, the destination-mac address are 0, and the target ip address is gateway ip address；
2nd RB encapsulates the ARP request message and generates the 3rd TRILL frame message, and the 3rd TRILL frame message includes
The tree root of the ARP request message, first entrance routing bridge and TRILL distribution tree, the first entrance routing bridge are described the
Two RB；
2nd RB forwards the 3rd TRILL frame message；
2nd RB receives the 4th TRILL frame message, and the 4th TRILL frame message includes arp reply message, second entrance
Routing bridge and third export routing bridge, and second entrance routing bridge is the first RB, and the arp reply message includes source MAC, mesh
MAC Address, transmitting terminal source MAC, transmitting terminal source IP address, destination-mac address and target ip address, the source MAC
Location is gateway MAC address, and the target MAC (Media Access Control) address is the first MAC, and the transmitting terminal source MAC is gateway MAC, the hair
Sending end source IP address is gateway ip address, and the destination-mac address is the first MAC, and the target ip address is the first IP, described
Third exports the previous dive routing bridge that routing bridge is the corresponding routing bridge of the gateway MAC address；
When determining that third outlet routing bridge is identical as the 2nd RB, the 2nd RB decapsulates the 4th TRILL
Frame message obtains the arp reply message；
2nd RB generates the 2nd TRILL MAC address entries, and the 2nd TRILLMAC list item includes the gateway MAC
Location, VLAN ID and the first RB；
2nd RB sends the arp reply message to the corresponding equipment of the first IP.
8. a kind of first routing bridge characterized by comprising
Receiving unit interconnects TRILL frame message for receiving the first transparent interconnection of lots of links, and the first TRILL frame message includes the
One ethernet frame message and first outlet routing bridge, the first ethernet frame message include source media intervention control MAC Address,
Target MAC (Media Access Control) address, source Internet protocol IP address and purpose IP address, the source MAC are the first MAC, the purpose MAC
Location is gateway MAC address, and the source IP address and the destination IP address be not in same network segment；
Processing unit, for decapsulating described first when determining that the first outlet routing bridge is identical as the first RB
TRILL frame message obtains the first ethernet frame message, and the first RB is the previous dive routing bridge of the 3rd RB, and described the
Three RB are the corresponding gateway of the gateway MAC address；
Transmission unit, for forwarding the first ethernet frame message according to the target MAC (Media Access Control) address and static mac address list item
To the 3rd RB, the static mac address list item includes the gateway MAC address, VLAN ID VLAN ID and
One interface.
9. the first routing bridge according to claim 8, which is characterized in that
The receiving unit is also used to receive the 3rd TRILL frame message, and the 3rd TRILL frame message includes ARP request report
The tree root of text, first entrance routing bridge and TRILL distribution tree, the first entrance routing bridge are the 2nd RB, the ARP request report
Text include source MAC, target MAC (Media Access Control) address, transmitting terminal source MAC, transmitting terminal source IP address, destination-mac address and Target IP
Address, the source MAC are the first MAC, and the target MAC (Media Access Control) address is broadcast address, and the transmitting terminal source MAC is first
MAC, the transmitting terminal source IP address are the first IP address, and the destination-mac address is 0, and the target ip address is gateway IP
Address；
The processing unit is also used to decapsulate the 3rd TRILL frame message, obtains the target ip address and described first
MAC；
The processing unit is also used to generate the first TRILLMAC list item, the first TRILL according to the first MAC
MAC address entries include the first MAC, VLAN ID and the 2nd RB；
The processing unit, be also used to generate arp reply message, and the arp reply message includes source MAC, purpose MAC
Location, transmitting terminal source MAC, transmitting terminal source IP address, destination-mac address and target ip address, the source MAC are gateway
MAC Address, the target MAC (Media Access Control) address are the first MAC, and the transmitting terminal source MAC is gateway MAC address, the transmitting terminal
Source IP address is gateway ip address, and the destination-mac address is the first MAC, and the target ip address is the first IP；
The processing unit is also used to encapsulate the arp reply message according to the first TRILL MAC address entries and generate the 4th
TRILL frame message, the 4th TRILL frame message include the arp reply message, second entrance routing bridge and third Exit Road
By bridge, second entrance routing bridge is the first RB, and third outlet routing bridge is the 2nd RB；
The transmission unit is also used to forward the 4th TRILL frame message.
10. according to the first routing bridge described in any one of claim 8-9 claim, which is characterized in that
The receiving unit is also used to receive the TRILL message that the 3rd RB is sent, the TRILL message from the first interface
Including gateway MAC address, gateway ip address and VLAN ID；
The processing unit, is also used to generate local static mac address list item, and the static mac address list item includes gateway MAC
Address, VLAN ID and the first interface.
11. a kind of secondary route bridge characterized by comprising
Receiving unit, for receiving the first ethernet frame message, the first ethernet frame message includes the intervention control of source media
MAC Address, target MAC (Media Access Control) address, source Internet protocol IP address and purpose IP address, the source MAC is the first MAC, described
Target MAC (Media Access Control) address is gateway MAC address, and the source IP address and the destination IP address be not in same network segment；
Processing unit interconnects TRILL MAC address entries, the 2nd TRILL MAC address entries packet for inquiring the second transparent interconnection of lots of links
The gateway MAC address, VLAN ID VLANID and the first RB are included, the previous dive that the first RB is the 3rd RB routes
Bridge, the 3rd RB are the corresponding gateway of the gateway MAC address；
The processing unit is also used to encapsulate the first ethernet frame message and generates the first TRILL frame message, and described first
TRILL frame message includes the first ethernet frame message and first outlet routing bridge, and the first outlet routing bridge is described
First RB；
Transmission unit, for forwarding the first TRILL frame message.
12. secondary route bridge according to claim 11, which is characterized in that
The receiving unit, be also used to receive ARP request message, and the ARP request message includes source MAC, purpose MAC
Location, transmitting terminal source MAC, transmitting terminal source IP address, destination-mac address and target ip address, the source MAC are first
MAC, the target MAC (Media Access Control) address are broadcast address, and the transmitting terminal source MAC is the first MAC, the transmitting terminal source IP address
For the first IP, the destination-mac address is 0, and the target ip address is gateway ip address；
The processing unit is also used to encapsulate the ARP request message and generates the 3rd TRILL frame message, the 3rd TRILL frame
Message includes the tree root of the ARP request message, first entrance routing bridge and TRILL distribution tree, the first entrance routing bridge
For the 2nd RB；
The transmission unit is also used to forward the 3rd TRILL frame message；
The receiving unit is also used to receive the 4th TRILL frame message, and the 4th TRILL frame message includes arp reply report
Text, second entrance routing bridge and third export routing bridge, and the second entrance routing bridge is the first RB, the arp reply message
Including source MAC, target MAC (Media Access Control) address, transmitting terminal source MAC, transmitting terminal source IP address, destination-mac address and Target IP
Address, the source MAC are gateway MAC address, and the target MAC (Media Access Control) address is the first MAC, the transmitting terminal source MAC
For gateway MAC address, the transmitting terminal source IP address is gateway ip address, and the destination-mac address is the first MAC, the mesh
Mark IP address is the first IP, and third outlet routing bridge is that the previous dive of the corresponding routing bridge of the gateway MAC address routes
Bridge；
The processing unit is also used to when determining that third outlet routing bridge is identical as the 2nd RB, described in decapsulation
4th TRILL frame message obtains the arp reply message；
The processing unit is also used to generate the 2nd TRILL MAC address entries, and the 2nd TRILL MAC address entries include institute
Gateway MAC address, VLAN ID and the first RB are stated, the first RB is the previous dive routing bridge of the 3rd RB, the 3rd RB
For the corresponding gateway of the gateway MAC address；
The transmission unit is also used to send the arp reply message to the corresponding equipment of the first IP.
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| CN103532858A (en) * | 2013-10-31 | 2014-01-22 | 福建星网锐捷网络有限公司 | TRILL (transparent interconnection of lots of links) network based data message processing method and device |
| CN104683230A (en) * | 2013-11-28 | 2015-06-03 | 华为技术有限公司 | Method and device for processing TRILL (Transparent Interconnection of Lots of Links) message |
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