CN103701725A - Hot plug method for switch router 40G interface - Google Patents
Hot plug method for switch router 40G interface Download PDFInfo
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- CN103701725A CN103701725A CN201310713923.7A CN201310713923A CN103701725A CN 103701725 A CN103701725 A CN 103701725A CN 201310713923 A CN201310713923 A CN 201310713923A CN 103701725 A CN103701725 A CN 103701725A
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Abstract
The invention provides a hot plug method for a switch router 40G interface. The hot plug method for the switch router 40G interface comprises the following steps of: when a PHY (physical layer) daughter card is under the out-of-the-position status, if the PHY daughter card is plugged in, converting into the PHY daughter card in-the-position probe status, detecting the PHY daughter card, and finally, converting into the PHY daughter card in-the-position status or the PHY daughter card in-the-position isolation status; when the PHY daughter card is under the in-the-position status, if the PHY daughter card is unplugged, converting into the PHY daughter card out-of-the-position status, and detecting the PHY daughter card out-of-the-position status, and finally converting into the PHY daughter card out-of-the-position status or the PHY daughter card out-of-the-position isolation status; under the PHY daughter card out-of-the-position probe status, plugging in the PHY daughter card again, and converting into the PHY daughter card in-the-position probe status; and under the PHY daughter card in-the-position probe status, unplugging the PHY daughter card again, and converting into the PHY daughter out-of-the-position probe status. According to the hot plug method for the switch router 40G interface, which is disclosed by the invention, the hot plug of the 40G interface can be realized, a user can configure a port according to the self requirement, and meanwhile, the system cost is lowered.
Description
Technical field
The present invention relates to the technical field of switch router, particularly relate to a kind of hot-plug method of switch router 40G interface.
Background technology
In prior art, the 40G interface of switch router be all generally directly from switch router, to extend out, warm connection function is not provided.
Meanwhile, because some chips cannot directly pick out four-way SFP interface (Quad Small Form-factor Pluggable, QSFP), so if will realize the hot plug support to 40G interface, just need to connect in addition PHY chip.As the chip bcm56842 of the bcm56840_PLUS system based on broadcom cannot directly pick out QSFP mouth, must connect in addition PHY chip, the bcm84740 providing as broadcom.But prior art is directly integrated into switch router inside by PHY chip bcm84740 conventionally, cause still cannot providing hot plug.
Yet, by external PHY chip on switch router, realize the hot plug to 40G interface, increased undoubtedly system cost.Meanwhile, in actual applications, user also may not need the bandwidth of 40G always.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of hot-plug method of switch router 40G interface, makes user carry out port arrangement according to self-demand, finally realizes the warm connection function of switch router 40G interface.
For achieving the above object and other relevant objects, the invention provides a kind of hot-plug method of switch router 40G interface, when PHY subcard is during in state in place not, if PHY subcard inserts, be converted to PHY subcard probe state in place; When PHY subcard probe state in place, PHY subcard is detected; If PHY subcard detected, be converted to PHY subcard state in place; If can't detect PHY subcard, PHY subcard keeps PHY subcard probe state in place constant, continues to detect PHY subcard; If detect overtimely, be converted to PHY subcard isolation in place; When PHY subcard is during in state in place, if PHY subcard is extracted, be converted to PHY subcard probe state not in place; When PHY subcard probe state not in place, the state not in place of PHY subcard is detected; If it is not in place PHY subcard to be detected, be converted to PHY subcard state not in place; If it is not in place PHY subcard not detected, PHY subcard keeps PHY subcard probe state not in place constant, continues to detect PHY subcard; If detect overtimely, be converted to PHY subcard isolation not in place; When PHY subcard is during in PHY subcard probe state not in place, reinsert PHY subcard, be converted to PHY subcard probe state in place; When PHY subcard is during in PHY subcard probe state in place, again extract PHY subcard, be converted to PHY subcard probe state not in place.
According to the hot-plug method of above-mentioned switch router 40G interface, wherein: while there is no subcard on PHY slot, PHY subcard is in PHY subcard state not in place.
According to the hot-plug method of above-mentioned switch router 40G interface, wherein: PHY subcard, in PHY subcard probe state in place, when PHY subcard is detected, is first searched the ID of PHY subcard.
According to the hot-plug method of above-mentioned switch router 40G interface, wherein: PHY subcard is in PHY subcard probe state in place, when PHY subcard is detected, after PHY subcard being detected, can not forward immediately PHY subcard state in place to, also need PHY subcard to carry out initialization, and the correct configuration of docking port.
Further, according to the hot-plug method of above-mentioned switch router 40G interface, wherein: if PHY subcard detected, but initialization is undesired or interface fails correctly to configure, continue to keep PHY subcard probe state in place, until the correct configuration of the initialization of PHY subcard and docking port is completed; If interface is overtime, can't correctly configure, docking port is isolated, and PHY subcard is in PHY subcard isolation in place.
According to the hot-plug method of above-mentioned switch router 40G interface, wherein: when PHY subcard is during in groove position, in PHY subcard state in place.
According to the hot-plug method of above-mentioned switch router 40G interface, wherein: when PHY subcard is in PHY subcard probe state not in place, when the state not in place of PHY subcard is detected, first search the PHY ID of PHY subcard, PHY subcard is carried out to initialization, and docking port is configured and removes isolation processing; If within detection time, occur that PHY subcard can't detect, initialization failure, interface configuration and removal isolate unsuccessfully, PHY subcard keeps PHY subcard probe state not in place.
According to the hot-plug method of above-mentioned switch router 40G interface, wherein: when PHY subcard inserts or extracts, carry out event handling by event handler.
According to the hot-plug method of above-mentioned switch router 40G interface, wherein: the hot-plug method support list 40G of the 40G interface of switch router and two kinds of patterns of 4x10G.
Further, according to the hot-plug method of above-mentioned switch router 40G interface, wherein: when carrying out the detection of PHY subcard, for single 40G interface modes, only need to detect single port; For 4x10G interface modes, need to detect 4 ports.
As mentioned above, the hot-plug method of switch router 40G interface of the present invention, has following beneficial effect:
(1) realize the hot plug for 40G interface;
(2) user can need to be configured port according to self, to be applicable to different application scenarioss, meets consumers' demand;
(3) reduce costs, there is applicability widely.
Accompanying drawing explanation
Fig. 1 is shown as PHY subcard state conversion schematic diagram in the hot-plug method of switch router 40G interface of the present invention;
Overhaul flow chart when Fig. 2 is shown as switch router 40G interface insertion subcard of the present invention;
Fig. 3 is shown as the overhaul flow chart of switch router 40G interface of the present invention while extracting subcard;
Fig. 4 is shown as in the present invention view when PHY subcard enters subcard probe state in place;
Fig. 5 is shown as in the present invention view when PHY subcard enters subcard probe state not in place.
Embodiment
Below, by specific instantiation explanation embodiments of the present invention, those skilled in the art can understand other advantages of the present invention and effect easily by the disclosed content of this specification.The present invention can also be implemented or be applied by other different embodiment, and the every details in this specification also can be based on different viewpoints and application, carries out various modifications or change not deviating under spirit of the present invention.
It should be noted that, the diagram providing in the present embodiment only illustrates basic conception of the present invention in a schematic way, satisfy and only show with assembly relevant in the present invention in graphic but not component count, shape and size drafting while implementing according to reality, during its actual enforcement, kenel, quantity and the ratio of each assembly can be a kind of random change, and its assembly layout kenel also may be more complicated.
In the present invention, by the mode of external PHY subcard on switch router, realize the hot plug of switch router 40G interface.In the ordinary course of things, the PHY that switch router chip internal carries, even if do not connect PHY subcard, 40G interface also exists logically.If but not external PHY subcard cannot be realized the hot plug of 40G interface.
PHY subcard is mainly used in the PHY of logic interfacing to switch.In a preferred embodiment of the invention, switch router chip adopts the exchange chip bcm56842 of broadcom, and PHY chip adopts the bcm84740 of broadcom.That exchange chip bcm56842 carries is the PHY of Warpcore, and PHY chip bcm84740 is as outside PHY.The hot-plug method of switch router 40G interface of the present invention can detect PHY subcard with respect to the state in place of switch router, thereby guarantees the warm connection function of switch router 40G interface.
In the present invention, the hot-plug method support list 40G of the 40G interface of switch router and two kinds of patterns of 4x10G.Detection behavior under two kinds of interface modes is not identical.Wherein, for single 40G interface modes, only need to detect single port; And for 4x10G interface modes, need to detect 4 ports.In like manner, the 40G interface of switch router is carried out to the mode that initialization, configuration, isolation adopt the same.
When PHY subcard is in different state in place, the hot plug running status of PHY subcard is also different, specifically referring to table 1.
The corresponding table of table 1, subcard state in place and hot plug running status
| Subcard state | State in place | Running status |
| PHY subcard state in place | In place | Normally |
| PHY subcard state not in place | Not in place | Normally |
| PHY subcard probe in place | In place | unknown |
| PHY subcard probe not in place | Not in place | unknown |
| The isolation in place of PHY subcard | In place | Extremely |
| The isolation not in place of PHY subcard | Not in place | Extremely |
With reference to Fig. 1-Fig. 3, the hot-plug method of switch router 40G interface of the present invention comprises following content:
(1) when PHY subcard is during in state in place not, if PHY subcard inserts, be converted to PHY subcard probe state in place; When PHY subcard probe state in place, PHY subcard is detected.If PHY subcard detected, be converted to PHY subcard state in place.If can't detect PHY subcard, PHY subcard state remains unchanged, and whether in placely continues to detect PHY subcard.If detect overtimely, be converted to PHY subcard isolation in place.
Particularly, while there is no subcard on PHY slot, PHY subcard is in PHY subcard state not in place.When PHY subcard inserts, while there is insertion event, the Status Change of PHY subcard is PHY subcard probe in place.PHY subcard, when PHY subcard probe state in place, detects PHY subcard.If PHY subcard detected, be converted to PHY subcard state in place.Now, PHY subcard can normally be used.If can't detect PHY subcard, PHY subcard state remains unchanged, and is still PHY subcard probe in place, continues to detect PHY subcard simultaneously.If overtime, PHY subcard also do not detected, be converted to PHY subcard isolation in place.
While detecting PHY subcard, need to search the ID of PHY subcard.Even if PHY subcard detected, can not forward immediately PHY subcard state in place to yet.Now needed the initialization to PHY subcard, and the normal configuration of docking port, to guarantee that interface can normally move.If PHY subcard detected, but initialization is undesired or interface fails correctly to configure, and continues to keep PHY subcard probe in place, until respective action is all correct.If interface is overtime, can't correctly configure, docking port is isolated, and avoids undesired interfaces.Now PHY subcard is in PHY subcard isolation in place.
Wherein, the bottom principle that PHY subcard inserts is as follows: when PHY subcard insertion groove position, from bottom, cause interrupt signal, and interrupt reporting with the form of event.After reporting events, adopt backstage timer to enter event handler, be specially event handling function.Wherein, adopt backstage timer processing can avoid taking break period, and for the processing of PHY, do not belong to the situation of time-sensitive, therefore process level and can reach a second level, without taking new task.
Event handler is for processing event.When generation PHY subcard inserts event, because event mouth occurs not in normal operating conditions, so will perform port isolation work, make all cannot be applied to PHY driving for setting and the inquiry of port; Also to prepare for detecting simultaneously, submit to probe event in place to event handler.
(2) when PHY subcard is during in state in place, if PHY subcard is extracted, be converted to PHY subcard probe state not in place; When PHY subcard probe state not in place, the state not in place of PHY subcard is detected.If it is not in place PHY subcard to be detected, be converted to PHY subcard state not in place.If it is not in place PHY subcard not detected, PHY subcard state remains unchanged, and continues to detect PHY subcard.If detect overtimely, be converted to PHY subcard isolation not in place.
Particularly, when PHY subcard is during in groove position, in PHY subcard state in place.When PHY subcard is extracted, extract event, now PHY subcard Status Change is PHY subcard probe not in place.PHY subcard, when PHY subcard probe state not in place, carries out detection not in place to PHY subcard.If it is not in place PHY subcard to be detected, forward PHY subcard state not in place to.If it is not in place PHY subcard not detected, PHY subcard state remains unchanged, and continues the state not in place of probePHY subcard.If the state not in place of PHY subcard overtime, also do not detected, be converted to PHY subcard isolation not in place.
PHY subcard extracts processing procedure and PHY subcard insert handling process is similar.First, PHY subcard is in PHY subcard state in place.When PHY subcard is extracted, response is interrupted, and submits to event handler to process the event of extracting.Event handler docking port carries out after isolation processing, enters into PHY subcard probe state not in place, and the PHY of daughtercard interface is carried out to probe.Particularly, carry out the flow process of probe as follows:
The PHY ID that step 1) is searched PHY subcard, carries out initialization to PHY subcard, and docking port is configured and removes isolation processing;
Step 2) if within detection time, occur that PHY subcard can't detect, initialization failure, interface configuration and removal isolate unsuccessfully, PHY subcard keeps PHY subcard probe state not in place;
If it is overtime that step 3), over detection time, detects, keep isolation, PHY subcard forwards PHY subcard isolation not in place to.
(3) when PHY subcard is during in PHY subcard probe state not in place, reinsert PHY subcard, be converted to PHY subcard probe state in place.
Particularly, if PHY subcard was once extracted, and PHY subcard is also in PHY subcard probe state not in place, but while also not detected, again PHY subcard reinserted, and jumps to PHY subcard probe state in place.
(4) when PHY subcard is during in PHY subcard probe state in place, again extract PHY subcard, be converted to PHY subcard probe state not in place.
Particularly, if PHY subcard once inserted, and PHY subcard is also in PHY subcard probe state in place, but while also not detected, again PHY subcard extracted again, jumps to PHY subcard probe state not in place.
Above-mentioned processing frequently causes PHY subcard to fail to do rapidly the situation of used time for PHY subcard plug, to guarantee finally to obtain correct result.For abnormal PHY subcard state, by inserting or extract to proceed to detect in operation, go, thereby obtain the chance that is transformed into correct startup PHY subcard.
With reference to Fig. 4, state and condition that PHY subcard enters PHY subcard probe state in place are as follows:
During state in place, there is not insertion event in A, PHY subcard;
When B, PHY subcard probe state in place, probe is not overtime, and processing remains unfulfilled;
When C, PHY subcard probe state not in place, there is insertion event;
During isolation in place, there is not insertion event in D, PHY subcard.
With reference to Fig. 5, state and condition that PHY subcard enters PHY subcard probe state not in place are as follows:
When A, PHY subcard state in place, extract event;
When B, PHY subcard probe state not in place, probe is not overtime, and processing remains unfulfilled;
When C, PHY subcard probe state in place, extract event;
When D, PHY subcard isolation in place, extract event.
In sum, the hot-plug method of switch router 40G interface of the present invention can be realized the hot plug for 40G interface; User can need to be configured port according to self, to be applicable to different application scenarioss, meets consumers' demand; Reduce system cost simultaneously, there is applicability widely.So the present invention has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all can, under spirit of the present invention and category, modify or change above-described embodiment.Therefore, such as in affiliated technical field, have and conventionally know that the knowledgeable, not departing from all equivalence modifications that complete under disclosed spirit and technological thought or changing, must be contained by claim of the present invention.
Claims (10)
1. a hot-plug method for switch router 40G interface, is characterized in that:
When PHY subcard is during in state in place not, if PHY subcard inserts, be converted to PHY subcard probe state in place; When PHY subcard probe state in place, PHY subcard is detected; If PHY subcard detected, be converted to PHY subcard state in place; If can't detect PHY subcard, PHY subcard keeps PHY subcard probe state in place constant, continues to detect PHY subcard; If detect overtimely, be converted to PHY subcard isolation in place;
When PHY subcard is during in state in place, if PHY subcard is extracted, be converted to PHY subcard probe state not in place; When PHY subcard probe state not in place, the state not in place of PHY subcard is detected; If it is not in place PHY subcard to be detected, be converted to PHY subcard state not in place; If it is not in place PHY subcard not detected, PHY subcard keeps PHY subcard probe state not in place constant, continues to detect PHY subcard; If detect overtimely, be converted to PHY subcard isolation not in place;
When PHY subcard is during in PHY subcard probe state not in place, reinsert PHY subcard, be converted to PHY subcard probe state in place;
When PHY subcard is during in PHY subcard probe state in place, again extract PHY subcard, be converted to PHY subcard probe state not in place.
2. the hot-plug method of switch router 40G interface according to claim 1, is characterized in that: while there is no subcard on PHY slot, PHY subcard is in PHY subcard state not in place.
3. the hot-plug method of switch router 40G interface according to claim 1, is characterized in that: PHY subcard, in PHY subcard probe state in place, when PHY subcard is detected, is first searched the ID of PHY subcard.
4. the hot-plug method of switch router 40G interface according to claim 1, it is characterized in that: PHY subcard is in PHY subcard probe state in place, when PHY subcard is detected, after PHY subcard being detected, can not forward immediately PHY subcard state in place to, also need PHY subcard to carry out initialization, and the correct configuration of docking port.
5. the hot-plug method of switch router 40G interface according to claim 4, it is characterized in that: if PHY subcard detected, but initialization is undesired or interface fails correctly to configure, continue to keep PHY subcard probe state in place, until the correct configuration of the initialization of PHY subcard and docking port is completed; If interface is overtime, can't correctly configure, docking port is isolated, and PHY subcard is in PHY subcard isolation in place.
6. the hot-plug method of switch router 40G interface according to claim 1, is characterized in that: when PHY subcard is during in groove position, in PHY subcard state in place.
7. the hot-plug method of switch router 40G interface according to claim 1, it is characterized in that: when PHY subcard is in PHY subcard probe state not in place, when the state not in place of PHY subcard is detected, first search the PHY ID of PHY subcard, PHY subcard is carried out to initialization, and docking port is configured and removes isolation processing; If within detection time, occur that PHY subcard can't detect, initialization failure, interface configuration and removal isolate unsuccessfully, PHY subcard keeps PHY subcard probe state not in place.
8. the hot-plug method of switch router 40G interface according to claim 1, is characterized in that: when PHY subcard inserts or extracts, by event handler, carry out event handling.
9. the hot-plug method of switch router 40G interface according to claim 1, is characterized in that: the hot-plug method support list 40G of the 40G interface of switch router and two kinds of patterns of 4x10G.
10. the hot-plug method of switch router 40G interface according to claim 9, is characterized in that: when carrying out the detection of PHY subcard, for single 40G interface modes, only need to detect single port; For 4x10G interface modes, need to detect 4 ports.
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| CN201310713923.7A CN103701725B (en) | 2013-12-20 | 2013-12-20 | The hot-plug method of switch router 40G interfaces |
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| CN104038377A (en) * | 2014-07-01 | 2014-09-10 | 上海斐讯数据通信技术有限公司 | System and method for managing multiple service boards through central processing unit |
| CN108667515A (en) * | 2018-04-23 | 2018-10-16 | 新华三技术有限公司 | Port configuration method and communication equipment |
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| CN103701725B (en) | 2018-02-06 |
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