CN101610215A - A kind of routing conversion and a kind of gateway device - Google Patents

A kind of routing conversion and a kind of gateway device Download PDF

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Publication number
CN101610215A
CN101610215A CNA2009100897092A CN200910089709A CN101610215A CN 101610215 A CN101610215 A CN 101610215A CN A2009100897092 A CNA2009100897092 A CN A2009100897092A CN 200910089709 A CN200910089709 A CN 200910089709A CN 101610215 A CN101610215 A CN 101610215A
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intranet
route
interface board
outer net
uplink
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CNA2009100897092A
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CN101610215B (en
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刘如冰
郑国良
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New H3C Technologies Co Ltd
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Hangzhou H3C Technologies Co Ltd
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Abstract

The invention discloses a kind of routing conversion, comprise: outer net route information is issued on the uplink interface board, and the Intranet routing iinformation is issued on uplink interface board and the downstream interface plate simultaneously, and on the downstream interface plate, be configured to the default route of uplink interface board; For the Business Stream of Intranet visit Intranet, the downstream interface buttress is transmitted according to the Intranet routing iinformation of self; For the Business Stream of Intranet visit outer net, the downstream interface plate can not find corresponding next jumping routing iinformation in the Intranet routing iinformation of self, then be forwarded to uplink interface board according to default route, is transmitted according to outer net route information by uplink interface board again; For the Business Stream of extranet access Intranet, uplink interface board is transmitted according to the Intranet routing iinformation.The invention also discloses a kind of gateway device.Technical scheme of the present invention can be avoided the waste of resource, reduces cost.

Description

A kind of routing conversion and a kind of gateway device
Technical field
The present invention relates to network communications technology field, refer to a kind of routing conversion and a kind of gateway device especially.
Background technology
In the prior art, because gateway device is the bridge of private user visit external network and visiting from outside private network, so need to learn Intranet route and outer net route on the gateway device.
Fig. 1 is the typical networking schematic diagram of of gateway device of the prior art.As shown in Figure 1, switch A has mulitpath to be linked into the Internet (Internet) as the gateway of enterprise network, and to a large amount of routes, these routes can not be incorporated into Intranet and go from internet learning.The flow of all Intranet access the Internet is all transmitted by switch A.In the prior art, all need to dispose identical Intranet routing iinformation and outer net route information on the total interface plate on the switch A, promptly the routing table on the total interface plate is identical.Specifically, on the switch A and uplink interface board Internet connection and all need to support to comprise the extensive route of Intranet route and outer net route with each downstream interface plate of inner (being connected with switch C) connection with switch b, therefore, complete machine all uses the interface board of high standard on the switch A, for example, generally all dispose all interface boards for supporting the high standard interface board of 1M route.
But in the enterprise network of reality, common up the needs supported large-scale route, and the route of descending access is less.Like this, there is the wasting of resources in the scheme according to existing gateway device complete machine configuration high standard interface board, and the too high situation of whole use cost.
Summary of the invention
The invention provides a kind of routing conversion, this method can be avoided the waste of resource, reduces cost.
The present invention also provides a kind of gateway device, and this gateway device can be avoided the wasting of resources, reduces cost.
For achieving the above object, technical scheme of the present invention specifically is achieved in that
The invention discloses a kind of routing conversion, this method is applicable to the gateway device that connects Intranet and connect outer net by uplink interface board by the downstream interface plate, outer net route information is issued on the uplink interface board, and the Intranet routing iinformation is issued on uplink interface board and the downstream interface plate simultaneously, and on the downstream interface plate, be configured to the default route of uplink interface board, this method comprises:
For the Business Stream of Intranet visit Intranet, the downstream interface buttress is transmitted according to the Intranet routing iinformation of self;
For the Business Stream of Intranet visit outer net, the downstream interface plate can not find corresponding next jumping routing iinformation in the Intranet routing iinformation of self, then be forwarded to uplink interface board according to default route, is transmitted according to outer net route information by uplink interface board again;
For the Business Stream of extranet access Intranet, uplink interface board is transmitted according to the Intranet routing iinformation.
The invention also discloses a kind of gateway device, this gateway device comprises: connect the downstream interface plate of Intranet, the uplink interface board and the routing processing unit of connection outer net, wherein,
Routing processing unit is used for outer net route information is issued to uplink interface board, and the Intranet routing iinformation is issued on uplink interface board and the downstream interface plate simultaneously, and be configured to the default route of uplink interface board on the downstream interface plate;
The downstream interface plate is used for when receiving the Business Stream of Intranet visit Intranet, and buttress is transmitted according to the Intranet routing iinformation of self; Be used for when receiving the Business Stream of Intranet visit outer net, in the Intranet routing iinformation of self, can not find corresponding next jumping routing iinformation, then be forwarded to uplink interface board according to default route;
Uplink interface board is used for transmitting according to outer net route information when receiving the Business Stream of downstream interface plate transmission; Be used for when receiving the Business Stream of extranet access Intranet, transmitting according to the Intranet routing iinformation.
As seen from the above technical solution, the present invention is this to be issued to outer net route information on the uplink interface board, and the Intranet routing iinformation is issued on uplink interface board and the downstream interface plate simultaneously, and is configured to the default route of uplink interface board on the downstream interface plate; For the Business Stream of Intranet visit Intranet, the downstream interface buttress is transmitted according to the Intranet routing iinformation of self; For the Business Stream of Intranet visit outer net, the downstream interface plate can not find corresponding next jumping routing iinformation in the Intranet routing iinformation of self, then be forwarded to uplink interface board according to default route, is transmitted according to outer net route information by uplink interface board again; Business Stream for the extranet access Intranet, the technical scheme that uplink interface board is transmitted according to the Intranet routing iinformation, because the downstream interface plate only need support a spot of Intranet route to get final product, therefore can adopt the interface board lower than uplink interface board specification, this adopts the interface board of identical high standard to compare with total interface plate of the prior art, avoid the waste of resource, and reduced cost.
Description of drawings
Fig. 1 is the typical networking schematic diagram of of gateway device of the prior art;
Fig. 2 is the flow chart of a kind of routing conversion of the embodiment of the invention;
Fig. 3 is the composition structured flowchart of a kind of gateway device of the embodiment of the invention.
Embodiment
Fig. 2 is the flow chart of a kind of routing conversion of the embodiment of the invention.This method is applicable to by the downstream interface plate and connects Intranet and connect the gateway device of outer net by uplink interface board that this method comprises as shown in Figure 2:
201, outer net route information is issued on the uplink interface board, and the Intranet routing iinformation is issued on uplink interface board and the downstream interface plate simultaneously, and on the downstream interface plate, be configured to the default route of uplink interface board.
In this step, can be the public network interface by specifying specific interface, then from then on the route learnt of interface be outer net route (or being called the Internet route), and the route that other interfaces beyond the public network interface are learnt is the Intranet route.The user can specify the public network interface by configuration order or other modes voluntarily according to the network planning, to guarantee that the route that this public network interface is learnt is the outer net route.In addition, can also specify special Routing Protocol to identify the processing of different routes, for example according to the Border Gateway Protocol (BGP of appointment, Border Gateway Protocol) resulting route is the outer net route, and be Intranet route etc. according to the resulting route of other agreements, certainly the user specifies special Routing Protocol by configuration order or other modes, to guarantee that the resulting route of this special Routing Protocol is the outer net route according to the network planning.The outer net route only is issued on the uplink interface board, and the Intranet route then needs to be issued to uplink interface board and downstream interface plate.
202, for the Business Stream of Intranet visit Intranet, the downstream interface buttress is transmitted according to the Intranet routing iinformation of self.
In this step, when the user visits mutually in Intranet, only need get final product in the forwarding of downstream interface plate.
203, for the Business Stream of Intranet visit outer net, the downstream interface plate can not find corresponding next jumping routing iinformation in the Intranet routing iinformation of self, then be forwarded to uplink interface board according to default route, is transmitted according to outer net route information by uplink interface board again.
204, for the Business Stream of extranet access Intranet, uplink interface board is transmitted according to the Intranet routing iinformation.
In scheme shown in Figure 2, because the downstream interface plate only need support a spot of Intranet route to get final product, therefore can adopt the interface board lower than uplink interface board specification, this adopts the interface board of identical high standard to compare with total interface plate of the prior art, avoid the waste of resource, and reduced cost.
Be example with networking shown in Figure 1 below, method shown in Figure 2 is further detailed.
In Fig. 1, switch A as gateway device comprises: one with Internet connection uplink interface board and two downstream interface plates that are connected with switch C with switch b respectively, wherein uplink interface board adopts performance parameter to be higher than the high standard interface board of certain first preset value, and two downstream interface plates all adopt performance parameter to be lower than the low specification interface board of certain second preset value, here first preset value can be identical with second preset value, also can be inequality.The Internet routing iinformation that switch A will be learnt (being outer net route information) is issued to uplink interface board, the Intranet routing iinformation of learning is issued on three all interface boards that comprise uplink interface board and downstream interface plate, and on two downstream interface plates, is configured to the default route of uplink interface board respectively.The configuration mode of default route can be as shown in table 1 under IPv6 or IPv4 networking:
Agreement Default route Next jumping
??IPv4 ??0.0.0.0/0 Uplink interface board
??IPv6 ??0::0/0 Uplink interface board
Table 1
Then the switch A among Fig. 1 is as follows to the routing forwarding of various traffic streams:
(1) Business Stream of Intranet visit Intranet
Owing to all disposed the routing iinformation of Intranet on each downstream interface plate, therefore when the downstream interface plate receives the Business Stream of Intranet visit Intranet, can transmit this Business Stream according to the Intranet routing iinformation of self and get final product.
(2) Business Stream of Intranet access internet
When the downstream interface plate receives the Business Stream of Intranet access internet, owing to do not have the configuring internet routing iinformation on the downstream interface plate, therefore can only match on the default route, this work flow is dealt into uplink interface board, carry out three layers of forwarding by uplink interface board according to oneself routing iinformation on one's body again, work flow is dealt into correct the Internet, and next is jumped onto.
The Business Stream of (3) internet access Intranet
When uplink interface board receives Business Stream from the visit Intranet of the Internet, transmit according to the outer net route information of self preserving and Intranet routing iinformation list item and to get final product.
As can be seen from the above-described embodiment, technical scheme of the present invention provides a kind of solution of routing interface plate mixed insertion, makes the interface board of the interface board of high standard and low specification coexist in the same equipment, and with the route specification work of high standard interface board.
In the above-described embodiments, Intranet is all concentrated through the uplink interface board that connects the Internet to the Business Stream message of the Internet and is transmitted, and therefore causes the forwarding load of uplink interface board bigger.In embodiments of the present invention, operating position according to the user, other uplink interface boards that increase right quantity are born forwarding of flow jointly, and the default load balancing strategy of use, as equal-cost route mode etc., allow Intranet to the Business Stream message of the Internet, share on the different uplink interface boards, below specify:
For example, when uplink interface board of increase, when promptly having two uplink interface boards: all need to dispose outer net route and Intranet route on two uplink interface boards, and the default route that disposes on each downstream interface plate is all corresponding to described two uplink interface boards; When the downstream interface plate receives Intranet to the Business Stream of outer net, can between two uplink interface boards, realize load balancing according to the equal-cost route mode.For example, a last work flow that matches default route is dealt into uplink interface board 1, and the then next Business Stream that matches default route just is forwarded to uplink interface board 2, so hockets.
In addition, can also adjust the load sharing ratio of each uplink interface board according to user's demand.Be specially: configuration has the default route of a plurality of next jumping on the downstream interface plate, and wherein, each uplink interface board is all corresponding to more than one next jumping of described default route; Business Stream for Intranet visit outer net, the downstream interface plate can not find corresponding next jumping routing iinformation in the Intranet routing iinformation of self, then match default route, according to preset strategy from default route a plurality of next select next jumping jumping, with work flow be dealt into selected next jump pairing uplink interface board.
Be example still, all need to dispose outer net route and Intranet route on two uplink interface boards, and the default route that disposes on each downstream interface plate is all corresponding to described two uplink interface boards with two uplink interface boards.Need uplink interface board 1 to share 1/4 flow in this example, uplink interface board 2 is shared 3/4 flow, then can realize by issue the default route with 4 next jumpings on the downstream interface plate, and 4 next in jumping one are uplink interface board 1, other 3 are upstream Interface 2, as shown in table 2:
Default route Next jumping
? ??0.0.0.0.0 Uplink interface board 1 uplink interface board 2 uplink interface boards 2 uplink interface boards 2
Table 2
Then dispose based on the default route shown in the table 2, when the downstream interface plate receives Intranet to the Business Stream of outer net, match default route, and this default route has 4 next jumpings, then according to default balance policy, as the equal-cost route mode etc., from 4 next select jumping one next jump into row and transmit.
Provide a kind of networking structure of gateway device as shown in Figure 3 based on the foregoing description.This gateway device can convergence-level or the gateway device of core layer, also can be the gateway device of Access Layer.
Fig. 3 is the composition structured flowchart of a kind of gateway device of the embodiment of the invention.As shown in Figure 3, this gateway device comprises: connect the downstream interface plate 301 of Intranet, the uplink interface board 302 and the routing processing unit 303 of connection outer net, wherein:
Routing processing unit 303, be used for outer net route information is issued to uplink interface board 302, and the Intranet routing iinformation is issued on uplink interface board 302 and the downstream interface plate 301 simultaneously, and on downstream interface plate 301, be configured to the default route of uplink interface board 302;
Downstream interface plate 301 is used for transmitting according to the Intranet routing iinformation of self when receiving the Business Stream of Intranet visit Intranet; Be used for when receiving the Business Stream of Intranet visit outer net, in the Intranet routing iinformation of self, can not find corresponding next jumping routing iinformation, then be forwarded to uplink interface board 302 according to default route;
Uplink interface board 302 is used for transmitting according to the outer net route information of self when receiving the Business Stream of downstream interface plate transmission; Be used for when receiving the Business Stream of extranet access Intranet, transmit according to the Intranet routing iinformation of self.
As shown in Figure 3, this gateway device comprises a plurality of downstream interface plates 301 and plural uplink interface board 302, wherein,
Each downstream interface plate 301 is used for being dealt into different uplink interface board 302 according to the different business circulation that default load balancing strategy is visited outer net with Intranet.
In Fig. 3, routing processing unit 303 is used on each downstream interface plate 301 default route that configuration has a plurality of next jumping, and wherein, each uplink interface board 302 is all corresponding to more than one next jumping of described default route;
Downstream interface plate 301, be used for when receiving the Business Stream of Intranet visit outer net, in the Intranet routing iinformation of self, can not find corresponding next jumping routing iinformation, then match default route, according to preset strategy from default route a plurality of next select next jumping jumping, with work flow be dealt into selected next jump pairing uplink interface board 302.
In Fig. 3, described routing processing unit 303 is used for special interface is appointed as the public network interface, will be defined as the outer net route from the route that the public network interface is learnt, and will be defined as the Intranet route from the route that other interfaces beyond the public network interface are learnt; Perhaps, described routing processing unit 303 is used to specify ad hoc routing protocol, will be defined as the outer net route according to the resulting route of this ad hoc routing protocol, will be defined as the Intranet route according to the resulting route of other Routing Protocols beyond this ad hoc routing protocol.
In Fig. 3, described uplink interface board 302 is higher than the high standard interface board of preset value for performance parameter; Described downstream interface plate 301 is lower than the low specification interface board of preset value for performance parameter.
In sum, the present invention is this to be issued to outer net route information on the uplink interface board, and the Intranet routing iinformation is issued on uplink interface board and the downstream interface plate simultaneously, and is configured to the default route of uplink interface board on the downstream interface plate; For the Business Stream of Intranet visit Intranet, the downstream interface buttress is transmitted according to the Intranet routing iinformation of self; Business Stream for Intranet visit outer net, the downstream interface plate can not find corresponding next jumping routing iinformation in the Intranet routing iinformation of self, then be forwarded to uplink interface board, transmit according to the outer net route information of self by uplink interface board again according to default route; Business Stream for the extranet access Intranet, the technical scheme that uplink interface board is transmitted according to the Intranet routing iinformation of self, because the downstream interface plate only need support a spot of Intranet route to get final product, therefore can adopt the interface board lower than uplink interface board specification, this adopts the interface board of identical high standard to compare with total interface plate of the prior art, avoid the waste of resource, and reduced cost.
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing preferred embodiment that develops simultaneously, the present invention is described in more detail.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention, all any modifications of being made within the spirit and principles in the present invention, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1, a kind of routing conversion, this method is applicable to the gateway device that connects Intranet and connect outer net by uplink interface board by the downstream interface plate, it is characterized in that, outer net route information is issued on the uplink interface board, and the Intranet routing iinformation is issued on uplink interface board and the downstream interface plate simultaneously, and on the downstream interface plate, be configured to the default route of uplink interface board, this method comprises:
For the Business Stream of Intranet visit Intranet, the downstream interface buttress is transmitted according to the Intranet routing iinformation of self;
For the Business Stream of Intranet visit outer net, the downstream interface plate can not find corresponding next jumping routing iinformation in the Intranet routing iinformation of self, then be forwarded to uplink interface board according to default route, is transmitted according to outer net route information by uplink interface board again;
For the Business Stream of extranet access Intranet, uplink interface board is transmitted according to the Intranet routing iinformation.
2, the method for claim 1 is characterized in that, when plural uplink interface board, the different business circulation that the downstream interface buttress is visited outer net according to default load balancing strategy with Intranet is dealt into different uplink interface boards.
3, method as claimed in claim 2 is characterized in that, the different business circulation that described downstream interface buttress is visited outer net according to default load balancing strategy with Intranet is dealt into different uplink interface boards and comprises:
Configuration has the default route of a plurality of next jumping on the downstream interface plate, and wherein, each uplink interface board is all corresponding to more than one next jumping of described default route;
Business Stream for Intranet visit outer net, the downstream interface plate can not find corresponding next jumping routing iinformation in the Intranet routing iinformation of self, then match default route, according to preset strategy from default route a plurality of next select next jumping jumping, with work flow be dealt into selected next jump pairing uplink interface board.
4, the method for claim 1 is characterized in that, this method is being issued to outer net route information on the uplink interface board, and further comprises before being issued to the Intranet routing iinformation on uplink interface board and the downstream interface plate simultaneously:
Special interface is appointed as the public network interface, will be defined as the outer net route, will be defined as the Intranet route from the route that other interfaces beyond the public network interface are learnt from the route that the public network interface is learnt;
Perhaps, specify ad hoc routing protocol, will be defined as the outer net route, will be defined as the Intranet route according to the resulting route of other Routing Protocols beyond this ad hoc routing protocol according to the resulting route of this ad hoc routing protocol.
5, as each described method in the claim 1 to 4, it is characterized in that,
Described uplink interface board is the high standard interface board;
Described downstream interface plate is low specification interface board.
6, a kind of gateway device is characterized in that, this gateway device comprises: connect the downstream interface plate of Intranet, the uplink interface board and the routing processing unit of connection outer net, wherein,
Routing processing unit is used for outer net route information is issued to uplink interface board, and the Intranet routing iinformation is issued on uplink interface board and the downstream interface plate simultaneously, and be configured to the default route of uplink interface board on the downstream interface plate;
The downstream interface plate is used for when receiving the Business Stream of Intranet visit Intranet, and buttress is transmitted according to the Intranet routing iinformation of self; Be used for when receiving the Business Stream of Intranet visit outer net, in the Intranet routing iinformation of self, can not find corresponding next jumping routing iinformation, then be forwarded to uplink interface board according to default route;
Uplink interface board is used for transmitting according to outer net route information when receiving the Business Stream of downstream interface plate transmission; Be used for when receiving the Business Stream of extranet access Intranet, transmitting according to the Intranet routing iinformation.
7, gateway device as claimed in claim 6 is characterized in that, this gateway device comprises plural uplink interface board,
The downstream interface plate is used for being dealt into different uplink interface boards according to the different business circulation that default load balancing strategy is visited outer net with Intranet.
8, gateway device as claimed in claim 7 is characterized in that,
Routing processing unit is used on the downstream interface plate default route that configuration has a plurality of next jumping, and wherein, each uplink interface board is all corresponding to more than one next jumping of described default route;
The downstream interface plate, be used for when receiving the Business Stream of Intranet visit outer net, in the Intranet routing iinformation of self, can not find corresponding next jumping routing iinformation, then match default route, according to preset strategy from default route a plurality of next select next jumping jumping, with work flow be dealt into selected next jump pairing uplink interface board.
9, gateway device as claimed in claim 6 is characterized in that,
Described routing processing unit is used for special interface is appointed as the public network interface, will be defined as the outer net route from the route that the public network interface is learnt, and will be defined as the Intranet route from the route that other interfaces beyond the public network interface are learnt;
Perhaps, described routing processing unit is used to specify ad hoc routing protocol, will be defined as the outer net route according to the resulting route of this ad hoc routing protocol, will be defined as the Intranet route according to the resulting route of other Routing Protocols beyond this ad hoc routing protocol.
10, as each described gateway device in the claim 6 to 9, it is characterized in that,
Described uplink interface board is the high standard interface board;
Described downstream interface plate is low specification interface board.
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