CN102638374B - Method for maintaining optical transmission network based on telnet protocol - Google Patents
Method for maintaining optical transmission network based on telnet protocol Download PDFInfo
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Abstract
The invention discloses a method for maintaining an optical transmission network based on a telnet protocol and relates to the field of communication. The method comprises the following steps: Ethernet channels between an element management unit and single disks are established, and ID (Identity) numbers of the single disks are acquired and a corresponding mapping table between MAC (Medium Access Control) addresses and IP (Internet Protocol) addresses of the single disks is generated; a command is issued on an element management system so as to enable a port monitoring and forwarding service of the element management unit; after the command is received by the element management unit, the element management unit turns on a packet monitor and a packet forwarder, starts up the telnet server side, and responds successful command to the element management system; the element management system starts up the telnet client and is connected with the telnet server side of the element management unit; and a user establishes connection with a specified address and a specified port through the telnet client of the element management system, logs onto a management system of the single disks, and carries out command line debugging. According to the method for maintaining the optical transmission network based on the telnet protocol, a random single disk of a network element can be remotely logged on without on-site debugging, so that the maintenance cost is saved, and the maintenance efficiency is increased.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of method safeguarding optical transport network based on Telnet.
Background technology
Optical transport network is by EMS (Element Management System, Element management system) and multiple network element composition, the single-deck that each network element has a difference in functionality by multiple again and NE management unit form, and NE management unit is the Network element object of EMS management.Each single-deck and NE management unit run independently embedded management system, use the Ethernet interface (Ethernet) in network element to communicate.Between different network elements and network element and Element management system chien shih light transmission channel ECC (namely Embedded Control Channel, embedded Control channel transmit the embedded Control path of Element management system information) communicate.NE management unit has Ethernet and ECC two kinds of communication modes concurrently.Under conventional situation, same single-deck IP address in different network elements is identical, single-deck in each network element and NE management unit are in same internal lan, and cannot with Element management system direct communication, this is that single-deck malfunction test in engineering adds difficulty.
Summary of the invention
The object of the invention is the deficiency in order to overcome above-mentioned background technology, a kind of method safeguarding optical transport network based on Telnet is provided, any single-deck of network element can be remotely logged into, carry out system problem diagnosis and state check, and do not use field adjustable, reach the effect of saving maintenance cost, improving maintenance efficiency.
The method safeguarding optical transport network based on Telnet provided by the invention, comprises the following steps: S1, set up the ethernet channel of NE management unit and single-deck, obtains No. ID, single-deck and also generates the single-deck MAC Address mapping table corresponding with IP address; S2, the port that transmitting order to lower levels opens NE management unit on Element management system are monitored and are served with forwarding, and NE management unit comprises bag monitor, Packet forwarding device and telnet service end; After S3, NE management unit receive orders, open bag monitor and Packet forwarding device, start telnet service end, and respond Element management system order success; S4, Element management system open telnet client and the telnet service end of connection network cell management unit, input single-deck title and port parameter, single-deck mapping table set up by the Packet forwarding device of NE management unit, by single-deck address and telnet port mapping to assigned address and port; S5, user, by connecting at the telnet client of Element management system and assigned address and port, sign in the management system of single-deck, carry out order line debugging; The Packet forwarding device mapping table of network element is specified in the inquiry of S6, Element management system transmitting order to lower levels, and the NE management unit of this network element responds the state of the existing Packet forwarding device of Element management system, and the amendment of Element management system transmitting order to lower levels and closedown forward service.
In technique scheme, step S1 comprises the following steps: in network element single-deck by business slot with ethernet channel, the IP of employing udp broadcast mode active reporting oneself and state parameter are to NE management unit, NE management unit upgrades high-speed cache, obtains the single-deck IP address list run; Whether NE management unit loses response by ICMP agreement active probe per second all slots single-deck, if lose response, then NE management unit judges that single-deck is not in slot or work not normal, deletes this single-deck IP address entry after 20 seconds; Otherwise NE management unit upgrades the single-deck address table that oneself is safeguarded.
In technique scheme, step S2 comprises the following steps: Element management system sends the order of unlatching corresponding with service to certain NE management unit by ECC signalling path; NE management unit inspection port is monitored and is forwarded service thread ID, if it is determined that the presence of Element management system service, then NE management unit is responded after Element management system service exists and terminated; Otherwise NE management unit opens service thread, starts a telnet service end, the port of open NE management unit Ethernet interface, its enable port is monitored and is served with forwarding; NE management unit responds Element management system order success; Element management system transmitting order to lower levels, the port of configuration NE management unit is monitored and is forwarded the sub-entry of serving, and increases the forwarding entry of single-deck in a network element; After NE management unit receives orders, whether normally detect single-deck communications status, if single-deck communication is normal, NE management unit obtains single-deck address and corresponding end slogan, in port is monitored and forwarding is served, increase a forwarding strategy, user uses telnet instruction to sign in NE management unit and single-deck from Element management system; If single-deck communication is abnormal, NE management unit terminates after responding Element management system single-deck communication disruption.
In technique scheme, step S3 comprises the following steps: Element management system sends query service status instruction to N number of NE management unit by ECC signalling path, query service status instruction be command code, NE management unit ID1, NE management unit ID2 ... NE management unit IDn; NE management unit receives command code, through compare NE ID identical with oneself time, NE management unit inquiry forwarding strategy table, obtain single-deck address ID and port numbers T, and report Element management system reply data, Element management system receives the response of NE management unit, and data are shown to user on interface.
In technique scheme, step S3 is further comprising the steps of: Element management system sends amendment port repeat service order to NE management unit by ECC signalling path, and amendment port repeat service order comprises command code, NE management unit ID, modified logo, forwarding target single-deck IDi and forwards port Ti; NE management unit receives command code, carries out data check, and presses modified logo process; NE management unit return command successful information is to Element management system, and order successful information comprises command code, NE management unit ID and Success Flag.
In technique scheme, Element management system described in step S4 opens telnet client and the process of the telnet service end of connection network cell management unit is: after Element management system opens telnet client, use Telnet to sign in the service end of a certain NE management unit by ECC channel, the telnet service end of this NE management unit receives and connects.
In technique scheme, the process of carrying out order line debugging described in step S5 is: in Element management system telnet client input instruction, open client and the service of TCP Packet forwarding of the NE management unit after built vertical telnet connection, NE management unit is pressed order parameter foundation and is connected with the telnet of single-deck, the IP address: Port mapping table making Packet forwarding device set up single-deck carries out the forwarding of telnet packet after the instruction receiving Element management system telnet client, sets up the two-way communication of single-deck and Element management system telnet client.
In technique scheme, the process that the amendment of the transmitting order to lower levels of Element management system described in step S6 and closedown forward service is: in Element management system telnet client input instruction, the single-deck address mapping table of Packet forwarding device in amendment NE management unit, and close the telnet client of NE management unit.
In technique scheme, all packets belonging to Telnet sent by ECC channel of described bag listener process.
In technique scheme, described Packet forwarding device, to the data of all of the port Telnet that bag monitor gets, is forwarded to the single-deck of specifying by the Ethernet interface in network element, forwards rule and carries out according to the IP address: Port mapping table of single-deck.
Compared with prior art, advantage of the present invention is as follows:
The invention provides a kind of method of Telnet optical transmission device single-deck, by EMU (the Element Management Unit on light device, NE management dish) port repeat service is provided, engineering staff is served based on this, open by order, check and revise port repeat service, be remotely logged into the business sheet disc system of optical transmission device, namely attendant can be remotely logged into any single-deck of network element, carry out system problem diagnosis and state check, and do not use field adjustable, reach the effect of saving maintenance cost, improving maintenance efficiency.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of the embodiment of the present invention.
Fig. 2 is the structured flowchart of network element in the embodiment of the present invention.
Fig. 3 is the flow chart of step S1 in the embodiment of the present invention.
Fig. 4 is the flow chart of step S2 in the embodiment of the present invention.
Fig. 5 is the flow chart of step S3 in the embodiment of the present invention.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Shown in Figure 1, the method safeguarding optical transport network based on Telnet that the embodiment of the present invention provides, comprises the following steps:
S1, set up the ethernet channel of NE management unit and single-deck, obtain single-deck ID (IDentity, identify label number) number and generate single-deck MAC (Medium/MediaAccessControl, medium access control) mapping table corresponding to address and IP (Internet Protocol, the agreement interconnected between network) address.
S2, the port that transmitting order to lower levels opens NE management unit on Element management system are monitored and serves with forwarding, and NE management unit comprises bag monitor, Packet forwarding device and telnet service end, gives tacit consent to and enable telnet service end in each single-deck.Wherein, bag monitor is realized by utility function PacketListener of NE management unit, as a separate threads after this function starts, process all by ECC channel send belong to Telnet and port is the packet of 23.Packet forwarding device is realized by utility function PacketTransfer, to the data of all of the port Telnet that bag monitor gets, be forwarded to the single-deck of specifying by the Ethernet interface in network element, forward rule and carry out according to the IP address: Port mapping table of single-deck.
After S3, NE management unit receive orders, open bag monitor and Packet forwarding device, start telnet service end, and respond Element management system order success; Can check that the port of whole NE management unit is monitored and forwards the running status of serving by the graphical interfaces of Element management system, can select to enable or close this service.
After S4, Element management system open telnet client, Telnet is used to sign in the service end of a certain NE management unit by ECC channel, the Telnet service end of this NE management unit receives and connects, can the management system of utility command line mode to NE management unit debug in Element management system telnet client: input single-deck title and port parameter, single-deck mapping table set up by the Packet forwarding device of NE management unit, by single-deck address and telnet port mapping to assigned address and port.
S5, by connecting at the telnet client of Element management system and assigned address and port, user can sign in the management system of single-deck, carry out order line debugging: in Element management system telnet client input instruction, open client and TCP (the Transmission Control Protocol of the NE management unit after built vertical telnet connection, transmission control protocol) Packet forwarding service, NE management unit is pressed order parameter foundation and is connected with the telnet of single-deck, the IP address: Port mapping table making Packet forwarding device set up single-deck carries out the forwarding of telnet packet after the instruction receiving Element management system telnet client, set up the two-way communication of single-deck and Element management system telnet client.
The transponder mapping table of network element is specified in the inquiry of S6, Element management system transmitting order to lower levels, and the NE management unit of this network element responds the existing transponder state of Element management system, and the amendment of Element management system transmitting order to lower levels and closedown forward service.In Element management system telnet client input instruction, the single-deck address mapping table of Packet forwarding device in NE management unit can be revised, and close the telnet client of NE management unit.
Shown in Figure 2, NE management unit has NE management Single Component Management interface P1 and NE management unit Ethernet interface P2, and NE management Single Component Management interface P1 is connected with Element management system by core bus ECC channel.Wherein, the IP address of NE management unit is fixed as 10.26.254.250/16, the IP of NE management Single Component Management interface P1 can be configured to any IP, and NE management unit Ethernet interface P2 and single-deck backboard 100 m ethernet interface PSn forms bus-network by core bus.The IP of NE management unit Ethernet interface P2 is fixed as 10.26.0.250, and the IP of single-deck backboard 100 m ethernet interface PSn is fixed as 10.26.0.X by single-deck slot, and X is the slot ID of single-deck, and X scope is (0,255).The IP address of single-deck is dynamically generated by the address signal of the slot, systems axiol-ogy single-deck place of single-deck, and the slot ID of form to be 10.26.0.X/24, X be single-deck, X scope is (0,255).
Shown in Figure 3, " set up the ethernet channel of NE management unit and single-deck, obtain No. ID, single-deck and generate the single-deck MAC Address mapping table corresponding with IP address " in step S1 specifically comprises the following steps:
In step 101, network element single-deck by business slot with ethernet channel, adopt the IP of UDP (User Data Protocol, User Datagram Protoco (UDP)) broadcast mode active reporting oneself and state parameter to NE management unit;
Step 102, NE management unit upgrade high-speed cache, obtain the single-deck IP address list run;
Whether step 103, NE management unit lose response by ICMP (Internet Control MessageProtocol, Internet Control Message Protocol) agreement active probe per second all slots single-deck, if so, then forward step 104 to; Otherwise forward step 105 to;
Step 104, NE management unit judge that single-deck is not in slot or work not normal, and NE management unit will delete this single-deck IP address entry after 20 seconds;
Step 105, NE management unit upgrade the single-deck address table that oneself is safeguarded.
Shown in Figure 4, " on Element management system, the port of transmitting order to lower levels unlatching NE management unit is monitored and served with forwarding " in step S2 specifically comprises the following steps:
Step 201, Element management system are sent by ECC signalling path and open the order of corresponding with service to certain NE management unit, and the order of opening corresponding with service comprises the port numbers T1 that command code, NE management element address ID and network element are specified.
Step 202, NE management unit inspection port are monitored and are forwarded service thread ID, judge whether to there is Element management system service, if so, then forward step 203 to, otherwise forward step 204 to.
Step 203, NE management unit are responded Element management system service and are existed, and respond instruction and comprise command code and status identifier, terminate.
Step 204, NE management unit open service thread, first a telnet service end is started, the port 23 of open NE management unit Ethernet interface, then its enable port is monitored and is served with forwarding, the t1 port issued in step 201 and 23 ports are bound, and monitors the t1 port packet that any IP address issues.
Step 205, NE management unit respond the successful instruction of order to instruction Element management system, order successful instruction to comprise command code and order success flag symbol.
Step 206, Element management system transmitting order to lower levels, the port of configuration NE management unit is monitored and is forwarded the sub-entry of serving, and increases the forwarding entry of single-deck in a network element; Transmitting order to lower levels comprises port numbers T2 corresponding to command code, single-deck address ID and single-deck.
After step 207, NE management unit receive orders, whether normally first detect single-deck communications status, this by whether there is single-deck address in checklist disk address table in step S1 realizes.If single-deck communication is normal, then go to step 209; Otherwise, forward step 208 to.
Step 208, NE management unit respond Element management system single-deck communication disruption, terminate.
Step 209, NE management unit obtain single-deck address ID and corresponding end slogan T2, and in port is monitored and forwarding is served, increase a forwarding strategy, the T2 port data Packet forwarding issued from any IP address is to 23 ports of the IP address of single-deck.
Step 210, user use instruction to open the telnet client of Element management system system, and input object IP, this object IP are the IP of the Single Component Management of NE management shown in Fig. 2 interface P1, if port is T1, can sign in NE management unit; If port is T2, can single-deck be logged on, terminate.
Shown in Figure 5, " user by Element management system transmitting order to lower levels, monitor and forward and serve by the port of inquiry and amendment NE management unit " in step S3 specifically comprises the following steps:
Step 301, judge that pending is that the port of inquiry or amendment NE management unit is monitored and serve with forwarding, be that the port of inquiry NE management unit is monitored and served with forwarding if pending, then forward step 302 to; If pending is that the port monitoring revising NE management unit is served with forwarding, then forward step 306 to.
Step 302, Element management system send query service status instruction to N number of NE management unit by ECC signalling path, query service status instruction be command code, NE management unit ID1, NE management unit ID2 ... NE management unit IDn.
Step 303, NE management unit receive command code, whether identically with oneself compare NE ID, if so, then forward step 304 to; Otherwise terminate.
Step 304, NE management unit inquiry forwarding strategy table, obtain single-deck address ID and port numbers T, and report Element management system reply data, comprise command code, NE management unit IDi, whether this network element opens forwarding service mark, and this network element forwards target single-deck IDj, corresponding forwarding port Tj.If open the service of forwarding, then mark is set to 1, otherwise is 0.
Step 305, Element management system receive the response of NE management unit, and data are shown to user on interface.
Step 306, Element management system send amendment port repeat service order to certain NE management unit by ECC signalling path, and instruction is command code, NE management unit ID, modified logo, forwards target single-deck IDi, forwards port Ti.When wherein modified logo is 1, represents that the forwarding port of modifying target single-deck IDi is Ti, when modified logo is 2, represent the forwarding port Ti closing single-deck IDi.
Step 307, NE management unit receive command code, carry out data check, and press modified logo process; If modified logo is 1, then the port monitoring revising oneself serves repeating strategy with forwarding, and whether search exists target single-deck IDi, if there is this ID item, then revises corresponding forwarding port Ti, if do not exist, then increases this list item.If modified logo is 2, then the port monitoring of searching oneself serves repeating strategy with forwarding, if there is target single-deck IDi, then deletes this list item.If do not exist, then do not carry out deletion action.
Step 308, NE management unit return command success instruction, to Element management system, orders successful instruction to comprise command code, NE management unit ID and Success Flag.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention comprises these change and modification.The content be not described in detail in this specification belongs to the known prior art of professional and technical personnel in the field.
Claims (8)
1. safeguard a method for optical transport network based on Telnet, it is characterized in that comprising the following steps:
S1, set up the ethernet channel of NE management unit and single-deck, obtain No. ID, single-deck and also generate the single-deck MAC Address mapping table corresponding with IP address:
In network element single-deck by business slot with ethernet channel, adopt the IP of udp broadcast mode active reporting oneself and state parameter to NE management unit, NE management unit upgrades high-speed cache, obtains the single-deck IP address list run; Whether NE management unit loses response by Internet Control Message Protocol ICMP agreement active probe per second all slots single-deck, if lose response, then NE management unit judges that single-deck is not in slot or work not normal, deletes this single-deck IP address entry after 20 seconds; Otherwise NE management unit upgrades the single-deck address table that oneself is safeguarded;
S2, the port that transmitting order to lower levels opens NE management unit on Element management system are monitored and are served with forwarding, and NE management unit comprises bag monitor, Packet forwarding device and telnet service end:
Element management system sends the order of unlatching corresponding with service to certain NE management unit by embedded Control channel ECC signalling path; NE management unit inspection port is monitored and is forwarded service thread ID, if it is determined that the presence of Element management system service, then NE management unit is responded after Element management system service exists and terminated; Otherwise NE management unit opens service thread, starts a telnet service end, the port of open NE management unit Ethernet interface, its enable port is monitored and is served with forwarding; NE management unit responds Element management system order success; Element management system transmitting order to lower levels, the port of configuration NE management unit is monitored and is forwarded the sub-entry of serving, and increases the forwarding entry of single-deck in a network element; After NE management unit receives orders, whether normally detect single-deck communications status, if single-deck communication is normal, NE management unit obtains single-deck address and corresponding end slogan, in port is monitored and forwarding is served, increase a forwarding strategy, user uses telnet instruction to sign in NE management unit and single-deck from Element management system; If single-deck communication is abnormal, NE management unit terminates after responding Element management system single-deck communication disruption;
After S3, NE management unit receive orders, open bag monitor and Packet forwarding device, start telnet service end, and respond Element management system order success;
S4, Element management system open telnet client and the telnet service end of connection network cell management unit, input single-deck title and port parameter, single-deck mapping table set up by the Packet forwarding device of NE management unit, by single-deck address and telnet port mapping to assigned address and port;
S5, user, by connecting at the telnet client of Element management system and assigned address and port, sign in the management system of single-deck, carry out order line debugging;
The Packet forwarding device mapping table of network element is specified in the inquiry of S6, Element management system transmitting order to lower levels, and the NE management unit of this network element responds the state of the existing Packet forwarding device of Element management system, and the amendment of Element management system transmitting order to lower levels and closedown forward service.
2. the method safeguarding optical transport network based on Telnet as claimed in claim 1, it is characterized in that: step S3 comprises the following steps: Element management system sends query service status instruction to N number of NE management unit by ECC signalling path, query service status instruction be command code, NE management unit ID1, NE management unit ID2 ... NE management unit IDn; NE management unit receives command code, through compare NE ID identical with oneself time, NE management unit inquiry forwarding strategy table, obtain single-deck address ID and port numbers T, and report Element management system reply data, Element management system receives the response of NE management unit, and data are shown to user on interface.
3. the method safeguarding optical transport network based on Telnet as claimed in claim 2, it is characterized in that: step S3 is further comprising the steps of: Element management system sends amendment port repeat service order to NE management unit by ECC signalling path, and amendment port repeat service order comprises command code, NE management unit ID, modified logo, forwarding target single-deck IDi and forwards port Ti; NE management unit receives command code, carries out data check, and presses modified logo process; NE management unit return command successful information is to Element management system, and order successful information comprises command code, NE management unit ID and Success Flag.
4. the method safeguarding optical transport network based on Telnet as claimed in claim 3, it is characterized in that: Element management system described in step S4 opens telnet client and the process of the telnet service end of connection network cell management unit is: after Element management system opens telnet client, use Telnet to sign in the service end of a certain NE management unit by ECC channel, the Telnet service end of this NE management unit receives and connects.
5. the method safeguarding optical transport network based on Telnet as claimed in claim 4, it is characterized in that: the process of carrying out order line debugging described in step S5 is: in Element management system telnet client input instruction, open client and the service of TCP Packet forwarding of the NE management unit after built vertical telnet connection, NE management unit is pressed order parameter foundation and is connected with the telnet of single-deck, the IP address: Port mapping table of single-deck set up by Packet forwarding device, NE management unit carries out the forwarding of telnet packet after receiving the instruction of Element management system telnet client, set up the two-way communication of single-deck and Element management system telnet client.
6. the method safeguarding optical transport network based on Telnet as claimed in claim 5, it is characterized in that: the process that the amendment of the transmitting order to lower levels of Element management system described in step S6 and closedown forward service is: in Element management system telnet client input instruction, the single-deck address mapping table of Packet forwarding device in amendment NE management unit, and close the telnet client of NE management unit.
7. the method safeguarding optical transport network based on Telnet according to any one of claim 1 to 5, is characterized in that: all packets belonging to Telnet sent by ECC channel of described bag listener process.
8. the method safeguarding optical transport network based on Telnet as claimed in claim 7, it is characterized in that: described Packet forwarding device is to the data of all of the port Telnet that bag monitor gets, be forwarded to the single-deck of specifying by the Ethernet interface in network element, forward rule and carry out according to the IP address: Port mapping table of single-deck.
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| CN104184620A (en) * | 2014-09-04 | 2014-12-03 | 浪潮电子信息产业股份有限公司 | Switching device state monitoring method based on Telnet |
| CN105281983A (en) * | 2015-11-20 | 2016-01-27 | 上海市共进通信技术有限公司 | Method for realizing SFU equipment debugging based on ethernet port |
| CN108111596B (en) * | 2017-12-18 | 2021-11-02 | 宁波三星医疗电气股份有限公司 | Method for debugging power acquisition terminal based on remote login |
| CN109981370B (en) * | 2019-03-29 | 2022-01-11 | 烽火通信科技股份有限公司 | Service management method, device and system for unit disks with different buses and protocols |
| CN110830325B (en) * | 2019-11-05 | 2021-05-14 | 北京云杉世纪网络科技有限公司 | Adaptive network bypass path network flow direction speculation method and system |
| CN112351016B (en) * | 2020-10-28 | 2022-09-06 | 河南信大网御科技有限公司 | One-to-many telnet remote communication method, mimicry defense architecture and medium |
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