CN101043387A - Remote mirror-image realization process, remote monitoring aids and system for realizing remote mirror-image - Google Patents
Remote mirror-image realization process, remote monitoring aids and system for realizing remote mirror-image Download PDFInfo
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- CN101043387A CN101043387A CNA2007100894362A CN200710089436A CN101043387A CN 101043387 A CN101043387 A CN 101043387A CN A2007100894362 A CNA2007100894362 A CN A2007100894362A CN 200710089436 A CN200710089436 A CN 200710089436A CN 101043387 A CN101043387 A CN 101043387A
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Abstract
The invention discloses an implementation method for remote mirror, remote monitor device and the relative system. Wherein, the remote monitor source device packs the message by multicast means into particular message to transmit to a monitor port of remote monitor objective device by demanding multicast; the monitor port de-packs the particular message to send to an analyzer. This invention can be applied both on the second and third layer network, and can save network resource efficiently.
Description
Technical field
The present invention relates to the data analysis of network service, the system of particularly a kind of Remote Switched Port Analyzer implementation method, remote supervisory and control(ling) equipment and realization Remote Switched Port Analyzer.
Background technology
Along with a large amount of of network popularize, network has become people's production, the indispensable part of life.Network development at present must become increasingly complex, therefore corresponding also to safeguard, monitoring and the ability of optimizing network proposed a higher demand.
Mirror image provides well a monitoring message and the mode of analyzing message.Monitor if desired and when analyzing the message of certain port on the network equipment, just can use local mirror image to handle.The message of analyzing when needs and policing port need the use Remote Switched Port Analyzer to handle not on consolidated network equipment this moment.
Remote Switched Port Analyzer is realized by the mode of VPN (Vitual Private Nerworks, VPN) at present, and is as described below.
First kind of mode: the mode by VLAN (Virtual Local Area Network, VLAN) realizes, allows mirror image message be transparent to policing port in the mode of broadcasting in this VLAN, and its concrete handling process may further comprise the steps:
Step S11, the message that the local mirror image of remote monitoring source device utilization will need to monitor copies on the particular port (being commonly referred to from the central port);
Step S12, the remote monitoring source device is being packaged into message specific two-layer VPN message on the central port, and sends it to the policing port of remote monitoring destination device;
Step S14, the remote monitoring destination device sends to analytical instrument analysis with the VPN message.
The second way: by the mode of gre tunnel, allow mirror image message mode with clean culture in a gre tunnel send to policing port, its message with mirror image encapsulates with GRE, sends to the policing port of watch-dog.
Yet all there is shortcoming in above-mentioned dual mode, and first kind of mode need rely on particular vlan to propagate mirror image data, necessarily requires network support not learn the characteristic VLAN of MAC, and can only propagate in double layer network; And the second way must be set up gre tunneling between Remote Switched Port Analyzer source device and Remote Switched Port Analyzer destination device, and when having a plurality of Remote Switched Port Analyzer destination device, the Remote Switched Port Analyzer source device must encapsulate a plurality of gre tunnelings, and pressure is very big.
Summary of the invention
The object of the present invention is to provide the system of a kind of Remote Switched Port Analyzer implementation method, remote supervisory and control(ling) equipment and realization Remote Switched Port Analyzer, so that Remote Switched Port Analyzer solution flexibly to be provided.
To achieve these goals, the invention provides a kind of Remote Switched Port Analyzer implementation method, wherein, comprising:
Steps A, the remote monitoring source device is packaged into the multicast message with first proprietary protocol number to the message that needs mirror image according to IP multicast mode;
Step B, the remote monitoring destination device obtains the multicast message with first proprietary protocol number by IP multicast mode from the remote monitoring source device;
Step C, remote monitoring destination device will send to analytical instrument from policing port after will having the multicast message decapsulation of first proprietary protocol number.
Above-mentioned Remote Switched Port Analyzer implementation method, wherein, described steps A specifically comprises:
Local mirror image step, the local mirror image of remote monitoring source device utilization will need the mirror image processing port of the message mirror of mirror image to the remote monitoring source device;
The mirror image message encapsulation step, the remote monitoring source device is encapsulated as mirror image encapsulated message with the message data that mirror image comes according to IP multicast mode at the mirror image processing port, and generate that (the protocol number field of the IP head of described mirror image encapsulated message is first proprietary protocol number for S, G) list item.
Above-mentioned Remote Switched Port Analyzer implementation method, wherein, the loopback port that described mirror image processing port is the remote monitoring source device.
Above-mentioned Remote Switched Port Analyzer implementation method, wherein, described step B specifically comprises:
Mirror image encapsulated message request step, remote monitoring destination device use Internet Group Management Protocol and multicast routing protocol to remote monitoring source device acquisition request mirror image encapsulated message;
Mirror image encapsulated message forwarding step, the remote monitoring source device sends to the remote monitoring destination device with the mirror image encapsulated message.
Above-mentioned Remote Switched Port Analyzer implementation method, wherein, described multicast routing protocol comprises protocol-independent specific source multicasting agreement, distance vector multicast routing protocol, multicast OSPF, Protocol Independent Multicast-dense mode and Protocol Independent Multicast-sparse mode.
Above-mentioned Remote Switched Port Analyzer implementation method, wherein, described step C is specially: the remote monitoring destination device judges that whether the message receive has first proprietary protocol number, if then will send to analytical instrument from policing port after the message decapsulation, otherwise transmits by normal flow.
In order better to realize above-mentioned purpose, the present invention also provides a kind of remote monitoring source device, comprises a mirror image processing port, also comprises:
Local mirror image processing module, the message mirror that is used to utilize local mirror image will need mirror image is to the mirror image processing port;
The mirror image message package module is used for the mirror image message of mirror image processing port is packaged into the mirror image encapsulated message with first proprietary protocol number according to IP multicast mode;
Mirror image encapsulated message sending module is used for utilizing the multicast mode to send to the remote monitoring destination device mirror image encapsulated message according to the request of remote monitoring destination device.
Above-mentioned remote monitoring source device, wherein, the loopback port that described mirror image processing port is the remote monitoring source device.
In order better to realize above-mentioned purpose, the present invention also provides a kind of remote monitoring destination device, comprises a policing port, wherein, also comprises:
Mirror image encapsulated message request module, being used for to remote monitoring source device acquisition request protocol number field is the mirror image encapsulated message of first proprietary protocol number;
The message receiver module is used to the message that utilizes multicast pattern receiving remote monitor source equipment to send;
Mirror image encapsulated message processing module, the message protocol number field that is used for that the message receiver module is received are to send to analytical instrument from policing port after the mirror image encapsulated message decapsulation of first proprietary protocol number.
In order better to realize above-mentioned purpose, the present invention also provides a kind of system that realizes Remote Switched Port Analyzer, comprises remote monitoring source device, remote monitoring destination device, and described remote monitoring source device and remote monitoring destination device are by network interworking information, wherein:
The message mirror that described remote monitoring source device is used to utilize local mirror image will need mirror image utilizes IP multicast mode message to be packaged into the mirror image encapsulated message with first proprietary protocol number behind the mirror image processing port of self;
Described remote monitoring destination device, be used to utilize the multicast mode to obtain the mirror image encapsulated message that the protocol number field is first proprietary protocol number from described remote monitoring source device after, will send to analytical instrument from policing port after the decapsulation of described mirror image encapsulated message.
The present invention has following beneficial effect:
The present invention can stride two, three layers network, and the connection network between remote monitoring source device and the remote monitoring destination device is not required;
Owing to utilize the multicast mode to handle, for the situation of a plurality of Remote Switched Port Analyzer destination devices, the Remote Switched Port Analyzer source device only need send a mirror image encapsulated message and get final product, and has saved Internet resources effectively.
Description of drawings
Fig. 1 is the schematic flow sheet of the implementation method of Remote Switched Port Analyzer of the present invention;
Fig. 2 is the applied Remote Switched Port Analyzer topological diagram of method of invention;
Fig. 3 is the schematic diagram of the encapsulation format of mirror image encapsulated message;
Fig. 4 is the schematic diagram of system that comprises the realization Remote Switched Port Analyzer of remote supervisory and control(ling) equipment detailed structure.
Embodiment
The implementation method of Remote Switched Port Analyzer of the present invention and remote supervisory and control(ling) equipment, after the message that needs mirror image being packaged into multicast message according to IP multicast mode at remote monitoring source device end with specific proprietary protocol number, and be transferred to the policing port of remote monitoring destination device by the multicast on demand mode, send to analytical instrument will have the message decapsulation of this specific proprietary protocol number by policing port after, realize data monitoring thus the remote monitoring source device.
The implementation method of Remote Switched Port Analyzer of the present invention comprises the steps: as shown in Figure 1
Local mirror image step, the local mirror image of remote monitoring source device utilization will need the mirror image processing port of the message mirror of mirror image to the remote monitoring source device;
The mirror image message encapsulation step, the remote monitoring source device is encapsulated as mirror image encapsulated message with the message data that mirror image comes according to IP multicast mode at the mirror image processing port, and generation (S, G) list item, the protocol number field of the IP head of described mirror image encapsulated message is a specific proprietary protocol number, represents that these IP data are the mirror image encapsulated message;
Mirror image encapsulated message request step, the remote monitoring destination device uses IGMP (Internet GroupManagement Protocol, Internet Group Management Protocol) and PIM (Protocol IndependentMulticast, Protocol Independent Multicast) agreement to remote monitoring source device acquisition request mirror image encapsulated message;
Mirror image encapsulated message forwarding step, the remote monitoring source device sends to the remote monitoring destination device with the mirror image encapsulated message;
Mirror image encapsulated message decapsulation step, remote monitoring destination device are to be transmitted to analytical instrument after the message decapsulation of proprietary protocol number with multicast message protocol number field.
Below in conjunction with Fig. 2 method of the present invention is described in more detail.
In the following description, be that example describes with following network condition: user side operation IGMP V3, operation PIM SSM (protocol-independent specific source multicasting) between the equipment, encapsulation format is IPv4.
As shown in Figure 2, be the applied Remote Switched Port Analyzer topological diagram of method of the present invention, wherein the message on the remote monitoring source device need carry out mirror image, and between remote monitoring source device and the remote monitoring destination device by network interworking information, it supports multicast forwarding function this network.
The implementation method of Remote Switched Port Analyzer of the present invention at first is provided with a mirror image processing port at the remote monitoring source device, do not make RPF (Rervese Path Forwarding at this port, inverse path is transmitted) check that it only as a function port of Remote Switched Port Analyzer, does not do other purposes.
After this mirror image processing port is set, the remote monitoring source device will need the message mirror of mirror image to this mirror image processing port, and these two layers of mirror image messages that are mirrored to the mirror image processing port are encapsulated as the mirror image encapsulated message with the IP multicast mode.
The encapsulation format of this mirror image encapsulated message comprises IP head and Layer 2 data two parts as shown in Figure 3, wherein:
The protocol number field of IP head is these IP data of expression proprietary protocol that is the mirror image encapsulated message number, number distinguishes mutually with other existing proprietary protocols;
Source IP address is specified by the user as the address of one of them interface of remote monitoring source device, this interface need enable PIM SSM, guarantee that simultaneously this address route can reach, in specific embodiments of the invention, the address (being assumed to be 1.1.1.1) of the loopback port of use remote monitoring source device is as source IP address;
Purpose IP address is a multicast group address, is specified by the user, in specific embodiments of the invention, uses privately owned multicast address as purpose IP address (being assumed to be 229.100.100.100).
After above-mentioned processing, the local generation on the Remote Switched Port Analyzer source device (S, G) list item (1.1.1.1,229.100.100.100), S is the source IP address of the mirror image encapsulated message of Remote Switched Port Analyzer source device, and G is the purpose IP address of the mirror image encapsulated message of Remote Switched Port Analyzer source device.
Below how the Remote Switched Port Analyzer destination device being obtained this mirror image encapsulated message is described.
The policing port of Remote Switched Port Analyzer destination device enables IGMP V3 and PIM SSM, uses IGMP member relation report message notice subnet multicast router, wishes to add this multicast group of 229.100.100.100;
After joining this multicast group of 229.100.100.100, the Remote Switched Port Analyzer destination device will form corresponding (S, G) list item (1.1.1.1,229.100.100.100), simultaneously with policing port as this (S, G) outgoing interface of list item;
The Remote Switched Port Analyzer destination device that has moved PIM SSM agreement simultaneously sends the PIM message that joins request to the Remote Switched Port Analyzer source device, to obtain the mirror image encapsulated message.
The Remote Switched Port Analyzer source device receives that PIM that the Remote Switched Port Analyzer destination device sends joins request after the message, to receive that this PIM joins request the interface of message as (S, G) outgoing interface of list item, and the mirror image encapsulated message is forwarded to the Remote Switched Port Analyzer destination device from this outgoing interface.
Since the Remote Switched Port Analyzer destination device before this with policing port as the Remote Switched Port Analyzer destination device (S, the G) outgoing interface of list item, so Remote Switched Port Analyzer destination device can prepare to carry out message forwarding from policing port after receiving the mirror image encapsulated message.
Because the message that the Remote Switched Port Analyzer destination device is received comprises two classes: mirror image encapsulated message and other normal data messages, therefore, at this, the protocol number field of the message that need be received by the inspection of Remote Switched Port Analyzer destination device judges that whether the protocol number field is these IP data of expression proprietary protocol that is the mirror image encapsulated message number, if, then the mirror image encapsulated message is carried out the decapsulation operation, restore original mirror image message, and send to analytical instrument analysis, otherwise normally transmit.
The above embodiments are to be that example describes method of the present invention with user side operation IGMP V3, and this method equally also is applicable to the IGMP of other versions, as IGMP V1 and IGMP V2.
Multicast routing protocol in the above embodiments is a PIM SSM agreement, this method equally also is applicable to other multicast routing protocol, as distance vector multicast routing protocol (Distance Vector MulticastRouting Protocol, DVMRP), open multicast OSPF (Multicast OpenShortest Path First, MOSPF), Protocol Independent Multicast-dense mode (Protocol IndependentMulticast-Dense Mode, PIM-DM) and Protocol Independent Multicast-sparse mode (ProtocolIndependent Multicast-Sparse Mode, PIM-SM) etc.
Encapsulation format in the above embodiments is IP V4, and this method equally also is applicable to IP V6.
The above embodiments are to be the explanation that example is carried out with the Port Mirroring, and this method equally also is applicable to the processing of traffic mirroring.
Remote monitoring source device of the present invention comprises as shown in Figure 4:
The mirror image processing port;
Local mirror image processing module, the message mirror that is used to utilize local mirror image will need mirror image arrive the mirror image processing port to the mirror image processing port as the message mirror with first port; This mirror image processing end is a private port, and only the function port as Remote Switched Port Analyzer uses, and the loopback port that can select the remote monitoring source device in actual application for use is as the mirror image processing port;
The mirror image message package module, generate (S after being used for the mirror image message of mirror image processing port is packaged into the mirror image encapsulated message according to IP multicast mode, G) list item, wherein the protocol number field of the IP head of mirror image encapsulated message is a specific proprietary protocol number, represents that these IP data are the mirror image encapsulated message;
Mirror image encapsulated message sending module, be used for utilizing the multicast mode to send to the remote monitoring destination device mirror image encapsulated message according to the request of remote monitoring destination device, promptly utilize the multicast on demand mode to realize the transmission of mirror image encapsulated message, at this, the mirror image encapsulated message can be transmitted from the interface of the request of receiving.
Wherein, the mirror image encapsulated message initiatively sends to mirror image encapsulated message sending module by the mirror image processing port, utilizes the multicast mode to send to the remote monitoring destination device mirror image encapsulated message by mirror image encapsulated message sending module according to the request of remote monitoring destination device.
Remote monitoring destination device of the present invention comprises as shown in Figure 4:
Policing port is connected with analytical instrument, is used for the analytical instrument that is sent to the mirror image encapsulated message after the reduction;
Mirror image encapsulated message request module, be used to use IGMP and PIM agreement to remote monitoring source device acquisition request mirror image encapsulated message, it specifically joins request and asks to obtain the mirror image encapsulated message by sending PIM to the remote monitoring source device after the operation PIM SSM agreement;
The message receiver module, the message that is used to utilize multicast pattern receiving remote monitor source equipment to send, the i.e. multicast data flow sent of remote monitoring source device;
Mirror image encapsulated message processing module, the protocol number field that is used for IP head that the message receiver module is received are to send to analytical instrument from policing port after the message decapsulation of specific proprietary protocol number.
Certainly, then transmit according to the normal process flow process for other the message that does not have specific proprietary protocol number and to get final product, this point is not described in detail at this.
As shown in Figure 4, the system of realization Remote Switched Port Analyzer of the present invention comprises remote monitoring source device, remote monitoring destination device, and this connects the range monitoring source device and the remote monitoring destination device is realized alternately by the network (not shown), wherein:
The message mirror that described remote monitoring source device is used to utilize local mirror image will need mirror image utilizes IP multicast mode message to be packaged into the mirror image encapsulated message with first proprietary protocol number behind the mirror image processing port of self;
Described remote monitoring destination device, be used to utilize the multicast mode to obtain the mirror image encapsulated message that the protocol number field is first proprietary protocol number from described remote monitoring source device after, will send to analytical instrument from policing port after the decapsulation of described mirror image encapsulated message.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a Remote Switched Port Analyzer implementation method is characterized in that, comprising:
Steps A, the remote monitoring source device is packaged into the multicast message with first proprietary protocol number to the message that needs mirror image according to IP multicast mode;
Step B, the remote monitoring destination device obtains the multicast message with first proprietary protocol number by IP multicast mode from the remote monitoring source device;
Step C, remote monitoring destination device will send to analytical instrument from policing port after will having the multicast message decapsulation of first proprietary protocol number.
2. Remote Switched Port Analyzer implementation method according to claim 1 is characterized in that, described steps A specifically comprises:
Local mirror image step, the local mirror image of remote monitoring source device utilization will need the mirror image processing port of the message mirror of mirror image to the remote monitoring source device;
The mirror image message encapsulation step, the remote monitoring source device is encapsulated as mirror image encapsulated message with the message data that mirror image comes according to IP multicast mode at the mirror image processing port, and generate that (the protocol number field of the IP head of described mirror image encapsulated message is first proprietary protocol number for S, G) list item.
3. Remote Switched Port Analyzer implementation method according to claim 2 is characterized in that, the loopback port that described mirror image processing port is the remote monitoring source device.
4. Remote Switched Port Analyzer implementation method according to claim 2 is characterized in that, described step B specifically comprises:
Mirror image encapsulated message request step, remote monitoring destination device use Internet Group Management Protocol and multicast routing protocol to remote monitoring source device acquisition request mirror image encapsulated message;
Mirror image encapsulated message forwarding step, the remote monitoring source device sends to the remote monitoring destination device with the mirror image encapsulated message.
5. Remote Switched Port Analyzer implementation method according to claim 4, it is characterized in that described multicast routing protocol comprises protocol-independent specific source multicasting agreement, distance vector multicast routing protocol, multicast OSPF, Protocol Independent Multicast-dense mode and Protocol Independent Multicast-sparse mode.
6. Remote Switched Port Analyzer implementation method according to claim 2, it is characterized in that, described step C is specially: the remote monitoring destination device judges whether the message receive has first proprietary protocol number, if then will send to analytical instrument from policing port after the message decapsulation, otherwise transmit by normal flow.
7. a remote monitoring source device comprises a mirror image processing port, it is characterized in that, also comprises:
Local mirror image processing module, the message mirror that is used to utilize local mirror image will need mirror image is to the mirror image processing port;
The mirror image message package module is used for the mirror image message of mirror image processing port is packaged into the mirror image encapsulated message with first proprietary protocol number according to IP multicast mode;
Mirror image encapsulated message sending module is used for utilizing the multicast mode to send to the remote monitoring destination device mirror image encapsulated message according to the request of remote monitoring destination device.
8. remote monitoring source device according to claim 7 is characterized in that, the loopback port that described mirror image processing port is the remote monitoring source device.
9. a remote monitoring destination device comprises a policing port, it is characterized in that, also comprises:
Mirror image encapsulated message request module, being used for to remote monitoring source device acquisition request protocol number field is the mirror image encapsulated message of first proprietary protocol number;
The message receiver module is used to the message that utilizes multicast pattern receiving remote monitor source equipment to send;
Mirror image encapsulated message processing module, the message protocol number field that is used for that the message receiver module is received are to send to analytical instrument from policing port after the mirror image encapsulated message decapsulation of first proprietary protocol number.
10. a system that realizes Remote Switched Port Analyzer comprises remote monitoring source device, remote monitoring destination device, and described remote monitoring source device and remote monitoring destination device is characterized in that by network interworking information:
The message mirror that described remote monitoring source device is used to utilize local mirror image will need mirror image utilizes IP multicast mode message to be packaged into the mirror image encapsulated message with first proprietary protocol number behind the mirror image processing port of self;
Described remote monitoring destination device, be used to utilize the multicast mode to obtain the mirror image encapsulated message that the protocol number field is first proprietary protocol number from described remote monitoring source device after, will send to analytical instrument from policing port after the decapsulation of described mirror image encapsulated message.
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| CN101989955A (en) * | 2010-11-17 | 2011-03-23 | 中兴通讯股份有限公司 | Realization method and system of remote loopback |
| CN102447627A (en) * | 2011-12-05 | 2012-05-09 | 上海顶竹通讯技术有限公司 | Message encapsulation/decapsulation device and method |
| CN101692649B (en) * | 2009-08-03 | 2012-07-11 | 杭州华三通信技术有限公司 | Method and equipment for data multi-wire monitoring |
| CN103535106A (en) * | 2011-05-16 | 2014-01-22 | 诺基亚公司 | Method and apparatus for considering routing information in the determination of an access network to be utilized |
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| CN102447627A (en) * | 2011-12-05 | 2012-05-09 | 上海顶竹通讯技术有限公司 | Message encapsulation/decapsulation device and method |
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| CN105939230A (en) * | 2016-04-27 | 2016-09-14 | 杭州迪普科技有限公司 | Multipoint remote monitoring method and device |
| WO2018024187A1 (en) * | 2016-08-01 | 2018-02-08 | 新华三技术有限公司 | Message monitoring |
| US10938679B2 (en) | 2016-08-01 | 2021-03-02 | New H3C Technologies Co., Ltd. | Packet monitoring |
| CN108965061A (en) * | 2018-08-03 | 2018-12-07 | 上海欣诺通信技术股份有限公司 | Packet capture device and method, reduction apparatus and method, system and medium |
| CN108965061B (en) * | 2018-08-03 | 2024-02-02 | 上海欣诺通信技术股份有限公司 | Data packet capturing device and method, restoring device and method, system and medium |
| CN112653628A (en) * | 2020-12-23 | 2021-04-13 | 新华三技术有限公司 | ERSPAN method and network equipment |
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