CN112511330A - Alarm method, device, network equipment and storage medium - Google Patents

Alarm method, device, network equipment and storage medium Download PDF

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Publication number
CN112511330A
CN112511330A CN202010591985.5A CN202010591985A CN112511330A CN 112511330 A CN112511330 A CN 112511330A CN 202010591985 A CN202010591985 A CN 202010591985A CN 112511330 A CN112511330 A CN 112511330A
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layer
channel layer
mtn
spn
phy
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杨剑
刘爱华
苏卉
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0631—Management of faults, events, alarms or notifications using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0686—Additional information in the notification, e.g. enhancement of specific meta-data

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

The application provides an alarm method, an alarm device, network equipment and a storage medium. The method detects a physical layer device PHY of the flexible Ethernet Flexe, a segment layer of a metropolitan area transmission network MTN or a segment layer of a sliced packet network SPN; and under the condition that a fault, an out-of-limit bit error rate or signal degradation is detected, inserting alarm indication information into a Flexe client layer, an MTN channel layer or an SPN channel layer associated with the fault, the out-of-limit bit rate or the signal degradation.

Description

Alarm method, device, network equipment and storage medium
Technical Field
The present application relates to ethernet communications, and for example, to an alarm method, apparatus, network device, and storage medium.
Background
Flexible Ethernet (FlexE) is an interface technology for realizing service isolation bearer and network fragmentation in a bearer network, realizes large-port binding and upgrading multiplexing of network bandwidth, and has high transmission efficiency. Based on the alarm mechanism of the FlexE, if an abnormality occurs in a Physical layer device (PHY) or Instance (Instance) or segment layer in the FlexE group, the client traffic in the entire FlexE group is alarmed, and other client traffic without the abnormality is interrupted due to the influence. Due to low reliability and poor flexibility of the alarm, the processing efficiency and the network performance of the client service are seriously influenced.
Disclosure of Invention
The application provides an alarm method, an alarm device, network equipment and a storage medium, so that the reliability and flexibility of alarm are improved, and normal transmission of abnormal customer services can be ensured.
The embodiment of the application provides an alarm method, which comprises the following steps:
detecting PHY of flexible Ethernet Flexe, a section layer of a Metro Transport Network (MTN) or a section layer of a Sliced Packet Network (SPN);
and under the condition that a fault, an out-of-limit bit error rate or signal degradation is detected, inserting alarm indication information into a Flexe client layer, an MTN channel layer or an SPN channel layer associated with the fault, the out-of-limit bit rate or the signal degradation.
The embodiment of the application further provides an alarm method, which comprises the following steps:
detecting PHY of Flexe, a segment layer of MTN or a segment layer of SPN;
determining whether the associated Flexe client layer, MTN channel layer or SPN channel layer generates bit error rate out-of-limit or signal degradation under the condition of detecting the error code;
and in the case of error rate out-of-limit or signal degradation, inserting alarm indication information into the associated Flexe client layer, MTN channel layer or SPN channel layer.
The embodiment of the present application further provides an alarm device, including:
the first detection module is used for detecting PHY of the flexible Ethernet Flexe, a section layer of the MTN or a section layer of the SPN;
and the second alarm module is used for inserting alarm indication information into the associated Flexe client layer, MTN channel layer or SPN channel layer under the condition of detecting faults, bit error rate out-of-limit or signal degradation.
The embodiment of the present application further provides an alarm device, including:
the second detection module is used for detecting PHY of Flexe, a section layer of MTN or a section layer of SPN;
an error code determination module configured to determine whether an associated FlexE client layer, MTN channel layer, or SPN channel layer generates an error rate violation or signal degradation when an error code is detected;
and the second alarm module is used for inserting alarm indication information into the associated Flexe client layer, the MTN channel layer or the SPN channel layer under the condition of generating bit error rate out-of-limit or signal degradation.
An embodiment of the present application further provides a network device, including:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the alert method described above.
The embodiment of the application also provides a computer readable storage medium, and a computer program is stored on the computer readable storage medium, and when the program is executed by a processor, the alarm method is realized.
Drawings
FIG. 1 is a flow chart of an alarm method according to an embodiment;
FIG. 2 is a diagram of a flexible Ethernet architecture according to an embodiment;
FIG. 3 is a diagram of a Flexe array according to an embodiment;
fig. 4 is a schematic diagram illustrating transmission of client services in a FlexE group according to an embodiment;
fig. 5 is a diagram illustrating detection of a PHY failure according to an embodiment;
FIG. 6 is a diagram illustrating a transport failure of customer traffic over a Flexe link, according to an embodiment;
FIG. 7 is a flowchart of an alerting method according to another embodiment;
fig. 8 is a schematic diagram illustrating transmission of client services in a FlexE group according to an embodiment;
fig. 9 is a diagram illustrating PHY error detection according to an embodiment;
FIG. 10 is a diagram illustrating a format of a local error control block according to an embodiment;
FIG. 11 is a diagram illustrating an error control block format according to an embodiment;
FIG. 12 is a diagram illustrating a custom control block format according to an embodiment;
fig. 13 is a diagram illustrating an OAM block format according to an embodiment;
FIG. 14 is a schematic structural diagram of an alarm device according to an embodiment;
FIG. 15 is a schematic structural diagram of an alarm device according to another embodiment;
fig. 16 is a schematic hardware structure diagram of a network device according to an embodiment.
Detailed Description
The present application will be described with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures.
If an exception occurs in a PHY or an instance or a segment layer in the FlexE group, the client traffic in the entire FlexE group is alerted, and the client traffic in the entire FlexE group is replaced with a Local Fault (LF) signal, so that the client traffic carried by the entire FlexE group is unavailable.
In the embodiment of the application, the alarm method is provided, and the alarm indication information is inserted into the FlexE client layer or the channel layer associated with the fault or the error code, so that the processing of other normal client services is not influenced, and the reliability and the flexibility of the alarm are improved.
Fig. 1 is a flowchart of an alarm method according to an embodiment, and as shown in fig. 1, the method according to the embodiment includes step 110 and step 120.
In step 110, the physical layer device PHY of the flexible ethernet FlexE, the segment layer of the metro transport network MTN or the segment layer of the sliced packet network SPN are detected.
Fig. 2 is a schematic diagram of a flexible ethernet structure according to an embodiment. As shown in fig. 2, the ethernet network includes an ethernet upper layer, a Media Access Control (MAC) layer, a coordination Sublayer (coordination), a Physical Coding Sublayer (PCS), a Forward Error Correction (FEC) Sublayer, a Physical Media Attachment (PMA) Sublayer, and a Physical Media Dependent (PMD) Sublayer; the PCS includes an Encode/Decode (Encode/Decode) sublayer, a FlexE client layer or channel layer, a FlexE or segment (Section) layer, a scrambling code (script), a Block Distribution (Block Distribution), and a byte Alignment (Alignment). From fig. 2, the location of the FlexE or segment layer, the FlexE client layer or the channel layer in the ethernet protocol stack can be seen.
The embodiment mainly performs detection or alarm on sublayers in a dashed frame in fig. 2, where the detection is on FlexE or segment layers in a PCS, and the segment layers include an MTN segment layer or an SPN segment layer; the alarm is directed to a FlexE client layer or a channel layer in the PCS, wherein the channel layer comprises an MTN channel layer or an SPN channel layer.
Fig. 3 is a schematic diagram of a FlexE array according to an embodiment. As shown in fig. 3, a FlexE group may be composed of a plurality (n) of PHYs, such as 50G PHY, 100GPHY, 200G PHY, 400G PHY, etc., and a PHY may be composed of a plurality (m) of 100G instances, such as 200G PHY composed of 2 100G instances and 400G PHY composed of 4 100G instances.
In step 120, in the case of detecting a fault, an out-of-limit bit error rate or signal degradation, alarm indication information is inserted into a FlexE client layer, an MTN channel layer or an SPN channel layer associated with the fault, the out-of-limit bit error rate or the signal degradation.
In this embodiment, when an anomaly is detected in any one of the PHY or segment layers, alarm indication information is inserted into the corresponding FlexE client layer or channel layer, the anomaly may be classified into a fault and an error code, and the error code may be classified into an error rate out-of-limit and a signal degradation according to a difference in the degree of the error code. The alarm indication information may be used to indicate that there is a fault, an out-of-limit error rate or signal degradation, indicate that there is a fault, an out-of-limit error rate or signal degradation location, indicate that customer traffic cannot be transmitted correctly, etc.
For example, in the case that a fault, an out-of-limit error rate or signal degradation is detected in the PHY of the FlexE, alarm indication information is inserted into the corresponding FlexE client layer where an abnormality occurs; under the condition that faults, bit error rate out-of-limit or signal degradation are detected in a segment layer of the MTN, alarm indication information is inserted into a corresponding MTN channel layer with abnormality; and under the condition that faults, bit error rate out-of-limit or signal degradation are detected in the SPN segment layer, inserting alarm indication information into the corresponding abnormal SPN channel layer. By inserting the alarm indication information into the Flexe client layer or the channel layer associated with the fault or the error code, the processing of other normal client services is not influenced, the normal transmission of the client services without the abnormity can be ensured, and the reliability and the flexibility of the alarm are improved.
Fig. 4 is a schematic diagram of transmission of a client service in a FlexE group according to an embodiment. As shown in fig. 4, there are 3 client services, and client service 1 (indicated by diagonal lines to the upper right), client service 2 (indicated by horizontal lines), and client service 3 (indicated by diagonal lines to the lower right) are transmitted through 3 PHYs in the FlexE group a, respectively. In this case, if one of the PHYs fails, mishandling will affect all client traffic, and is replaced with LF signals, interrupting transmission.
Fig. 5 is a diagram illustrating detection of a PHY failure according to an embodiment. As shown in fig. 5, taking the example that a fault (or an error) occurs in the PHY3 (or a 100G instance in the PHY 3) as an example, the client service 3 is transmitted on the PHY3, in this embodiment, only the alarm indication information is inserted into the FlexE client layer associated with the PHY3 (or a 100G instance in the PHY 3), the data of the client service 3 is replaced by the alarm indication information, and cannot be normally transmitted, and the client service on the FlexE client layer that is not associated with the fault (or the error) can still be normally transmitted.
In the embodiment, the alarm indication information is inserted into the FlexE client layer or the channel layer associated with the fault or the error code, so that the processing of other normal client services is not influenced, and the reliability and the flexibility of the alarm are improved.
In one embodiment, the fault includes at least one of: loss of signal, Link down, PHY auto-negotiation failure, block out-of-lock, alignment marker not locked, frame loss (overhead frame loss), frame out-of-sync (overhead frame out-of-sync), multiframe loss, multiframe out-of-sync, FlexE Group Number (Group Number) inconsistency, FlexE bitmap (FlexE Map) inconsistency, PHY Number (PHY Number) inconsistency, Instance Number (Instance Number) inconsistency, Skew (Skew) between instances of different PHYs exceeding de-Skew (deske) buffering, any state that results in a PCS state error (PCS _ status ═ FALSE).
In this embodiment, in the case where one or more of the above-described failures are detected in the PHY (or 100G instance thereof), the segment layer of the MTN, or the segment layer of the SPN, alarm indication information is inserted into the FlexE client (or the channel layer) associated with the failure.
Fig. 6 is a schematic diagram illustrating that the client service provided by the embodiment transmits a failure on the FlexE link. As shown in fig. 6, when the PHY1 on the left port of the C node fails, such as loss of signal and failure of PHY auto-negotiation, alarm indication information is inserted into the client service 1 and the service 2, and both the client service 1 and the client service 2 sent in the PHY1 on the right port of the C node are replaced with the alarm indication information and transmitted to the D node.
In one embodiment, step 120 includes:
determining whether an error rate violation or a signal degradation occurs in the PHY, the segment layer of the MTN, or the segment layer of the SPN based on a set threshold.
In this embodiment, when an error is detected in a PHY (or a 100G example thereof), a segment layer of an MTN, or a segment layer of an SPN, it is determined whether an error rate violation (Hi-BER) or a signal degradation occurs according to a set threshold, that is, an error rate exhibited in the segment layer of the PHY, the MTN, or the segment layer of the SPN is compared with the set threshold, so as to determine whether an error rate violation or a signal degradation occurs in the segment layer of the PHY, the MTN, or the segment layer of the SPN, and if so, corresponding alarm indication information is inserted into a FlexE client layer, an MTN channel layer, or an SPN channel layer associated with the error rate violation or the signal degradation.
In one embodiment, step 110 includes:
determining that signal degradation occurs in the PHY, the MTN segment layer, or the SPN segment layer when the error rate of the PHY, the MTN segment layer, or the SPN segment layer is greater than or equal to a first threshold value and less than a second threshold value; when the error rate of the PHY, the MTN segment layer or the SPN segment layer is greater than or equal to the second threshold value, it is determined that an error rate overrun occurs in the PHY, the MTN segment layer or the SPN segment layer.
In this embodiment, the PHY, the segment layer of the MTN, or the segment layer of the SPN may be classified into an error rate out-of-limit and a signal degradation according to the difference of the error rate. And comparing the error rate of the PHY, the MTN section layer or the SPN section layer with a set threshold value to judge whether error rate out-of-limit or signal degradation is generated, and if so, inserting corresponding alarm indication information into a Flexe client layer, an MTN channel layer or an SPN channel layer related to the error rate out-of-limit or signal degradation. For example, if the bit error rate of the PHY, the segment layer of the MTN, or the segment layer of the SPN is greater than or equal to T1 and less than T2(T2 > T1), it is determined that signal degradation has occurred in the PHY, the segment layer of the MTN, or the segment layer of the SPN; if the error rate of the PHY, MTN segment layer, or SPN segment layer is greater than or equal to T2, it is determined that an out-of-limit error rate occurs in the PHY, MTN segment layer, or SPN segment layer. By setting different thresholds, the flexibility and reliability of detection can be improved.
In one embodiment, the method further comprises:
step 130: and under the condition that the fault, the bit error rate out-of-limit or the signal degradation disappears is detected, stopping inserting the alarm indication information into the associated Flexe client layer, the MTN channel layer or the SPN channel layer.
In this embodiment, when the PHY (or 100G instance thereof), the MTN segment layer, or the SPN segment layer detects that one or more of the above-mentioned faults disappear, or that an error rate exceeds a limit or a signal degradation disappears (the error rate of the PHY, the MTN segment layer, or the SPN segment layer is smaller than a certain threshold), the insertion of the alarm indication information into the FlexE client layer (or the channel layer) associated with the fault is stopped, and the normal transmission of the client service is recovered in time, so as to ensure the processing efficiency.
In one embodiment, the alarm indication information is a 66-bit block: the 66-bit block includes one of: a local fault block, an error control block, a custom control block, and an operation maintenance management OAM block containing the alarm indication information.
In this embodiment, the alarm indication information may be represented by a 66bit block, such as an LF control block, an error control block, a newly defined control block, or an Operation and Maintenance (OAM) block containing the alarm indication information.
In one embodiment, step 120 includes: and replacing or inserting the data of the client service transmitted in the associated Flexe client layer, MTN channel layer or SPN channel layer with the alarm indication information.
In this embodiment, the alarm indication information may be inserted by replacing the transmitted data of the client service with the alarm indication information, or by inserting the alarm indication information into the data of the client service, for example, inserting an OAM block.
In some embodiments, detection may be made of one or more of the PHY, the segment layer of the MTN, and the segment layer of the SPN. Faults, bit error rate violations or signal degradations may occur in one or more of the PHY, the segment layer of the MTN and the segment layer of the SPN, and accordingly, the associated layer in which the alarm indication information needs to be inserted may also be one or more of the FlexE client layer, the MTN channel layer or the SPN channel layer.
In the embodiment of the application, an alarm method is further provided, and by inserting alarm indication information into a FlexE client layer or a channel layer associated with a fault or an error code, processing of other normal client services is not affected, and reliability and flexibility of alarm are improved. Fig. 7 is a flowchart of an alarm method according to another embodiment, as shown in fig. 7, the method according to this embodiment includes steps 210 and 230.
In step 210, detection is performed on PHY of FlexE, segment layer of MTN, or segment layer of SPN.
In step 220, in the event of a detected error, it is determined whether the associated FlexE client layer, MTN channel layer or SPN channel layer produces an error rate violation or signal degradation.
In step 230, in case of bit error rate out-of-limit or signal degradation, an alarm indication message is inserted into the associated FlexE client layer, MTN channel layer or SPN channel layer.
In this embodiment, detection or alarm is mainly performed on sublayers in a dashed frame in fig. 2, where the detection is performed on FlexE or segment layers in a PCS, and the segment layers include an MTN segment layer or an SPN segment layer; the alarm is directed to a FlexE client layer or a channel layer in the PCS, wherein the channel layer comprises an MTN channel layer or an SPN channel layer.
The difference from the alarm method of the above embodiment is that, in the present embodiment, when an error code is detected in a PHY or a segment layer, it is further determined whether an error rate violation or signal degradation occurs according to an error code degree of a client service transmitted in an associated FlexE client layer, MTN channel layer, or SPN channel layer, and if so, alarm indication information is inserted into the corresponding FlexE client layer or channel layer, and if no error rate violation or signal degradation occurs, no alarm may be performed, thereby improving the reliability of the alarm. The alarm indication information may be used to indicate the presence of bit errors (bit error rate violations or signal degradations), the location of bit error rate violations or signal degradations, indicate customer traffic that cannot be transmitted correctly, etc.
For example, in the case of detecting an error in the PHY of the FlexE, it is determined whether the error level of the client traffic in the associated FlexE client layer reaches an error rate out-of-limit or signal degradation, and if so, alarm indication information is inserted into the associated FlexE client layer; under the condition that an error code is detected in a segment layer of the MTN, determining whether the error code degree of client service in an associated MTN channel layer reaches the error code rate out-of-limit or signal degradation, and if so, inserting alarm indication information into the associated MTN channel layer; and under the condition that the error code is detected in the segment layer of the SPN, determining whether the error code degree of the client service in the associated SPN channel layer reaches the error code rate out-of-limit or the signal degradation, and if so, inserting alarm indication information into the associated MTN channel layer. By inserting the alarm indication information into the Flexe client layer or the channel layer associated with the fault or the error code, the processing of other normal client services is not influenced, the normal transmission of the client services without the abnormity can be ensured, and the reliability and the flexibility of the alarm are improved.
Fig. 8 is a schematic diagram of transmission of a client service in a FlexE group according to an embodiment. As shown in fig. 8, there are 4 customer services, customer service 1 (hatched to the upper right) is transmitted in 100G instance 1(5 slots) of 200G PHY1 and 100G instance 1(3 slots) of 200G PHY 2; customer service 2 (shown by horizontal line) transmitted in 100G instance 2(7 slots) of 200G PHY 1; customer service 3 (hatched to the lower right), transmitted in 100G instance 1(5 slots) of 200G PHY 2; customer service 4 (shown in diagonal grid) is transmitted in 100G instance 1(2 slots) of 200G PHY1 and 100G instance 2(3 slots) of 200G PHY 2.
Fig. 9 is a diagram illustrating detection of a PHY error according to an embodiment. As shown in fig. 9, when detecting that 100G instance 1 of the 200G PHY2 generates an error, the associated client services are client service 1 and client service 3, in this case, it is further determined whether the FlexE client layers of the client service 1 and client service 3 generate an error rate violation or signal degradation, and if so, alarm indication information is inserted into the FlexE client layers of the client service 1 and client service 3. Taking customer service 1 as an example, customer service 1 is carried by two 100G instances, and alarm indication information is inserted in 100G instance 1(5 slots) of 200G PHY1 and 100G instance 1(3 slots) of 200G PHY 2; whereas customer service 2 and customer service 4 may be transmitted normally.
In an embodiment, in the case of detecting an error code, step 220 specifically includes:
calculating the error rate of the client service of the Flexe client layer, the MTN channel layer or the SPN channel layer according to the time slot distribution of the client service of the Flexe client layer, the MTN channel layer or the SPN channel layer in each PHY or each instance and error code parameters, wherein the error code parameters comprise the number of error codes or the error code rate;
determining that signal degradation is generated in the associated Flexe client layer, MTN channel layer or SPN channel layer under the condition that the error rate is greater than or equal to a third threshold value and is less than a fourth threshold value;
determining that an error rate violation occurs in the associated Flexe client layer, MTN channel layer, or SPN channel layer if the error rate is greater than or equal to the fourth threshold.
In this embodiment, if an error is detected in a PHY, a segment layer of an MTN, or a segment layer of an SPN, the error rate of the client service of the FlexE client layer, the MTN channel layer, or the SPN channel layer is further calculated according to the timeslot distribution of the client service of the FlexE client layer, the MTN channel layer, or the SPN channel layer in each PHY or each instance and an error parameter, where the error parameter includes the number of errors or the error rate. If the error rate of the client traffic of the Flexe client layer, the MTN channel layer or the SPN channel layer is greater than or equal to T3 and less than T4(T4 > T3), determining that signal degradation is generated in the Flexe client layer, the MTN channel layer or the SPN channel layer; and if the error rate of the client service of the Flexe client layer, the MTN channel layer or the SPN channel layer is greater than or equal to T4, determining that the error rate is out of limit in the Flexe client layer, the MTN channel layer or the SPN channel layer. By setting different thresholds, the flexibility and reliability of detection can be improved.
In an embodiment, in the case of detecting an error code, step 220 specifically includes:
step 221: determining the weight corresponding to each instance according to the time slot distribution of the client service of a Flexe client layer, an MTN channel layer or an SPN channel layer in each PHY or each instance;
step 222: and calculating the weighted average value of the error code parameters of each example based on the weight corresponding to each PHY or each example to obtain the error code rate of the client service of the Flexe client layer, the MTN channel layer or the SPN channel layer.
In this embodiment, the error rate is calculated according to the timeslot distribution of the client service of the FlexE client layer, the MTN channel layer, or the SPN channel layer in each PHY or each instance, and the error parameter (number of errors or error rate), including but not limited to a weighted average manner.
As shown in fig. 8 and 9, customer service 1 is transmitted in 100G instance 1(5 slots) of 200G PHY1 and 100G instance 1(3 slots) of 200G PHY 2; if both 100G instance 1 of 200G PHY1 and 100G instance 1 of 200G PHY2 detected errors, the error rate of 100G instance 1 of 200G PHY1 is denoted as B1, with a corresponding weight of 5/(5+3) 5/8; the error rate for 100G instance 1 of the 200G PHY2 is denoted as B2, with a corresponding weight of 3/(5+3) ═ 5/8; bit error rate B of customer service 115/8 × B1+3 × 8 × B2 (weighted average). If B is1Is above a set thresholdValue, then the alarm indication information is inserted to the FlexE client layer of client service 1.
For client service 2, only transmission is performed in 100G instance 2(7 slots) of 200G PHY1, no error is detected, no alarm is needed, and client service 2 can be transmitted normally.
For customer service 3, only transmitted in 100G instance 1(5 slots) of 200G PHY2, with bit error rate B2I.e., the error rate on 100G instance 1 of the 200G PHY2, if the error rate exceeds a set threshold, then alarm indication information is inserted into the FlexE client layer of the client service 2.
For customer service 4, transmit in 100G instance 1(2 slots) of 200G PHY1 and 100G instance 2(3 slots) of 200G PHY 2; the error rate for 100G instance 1 of the 200G PHY1 is denoted as B3, with a corresponding weight of 2/(2+3) ═ 2/5; no error was detected in 100G instance 1 of 200G PHY2, the error parameter is 0; bit error rate B of customer service 432/5 × B3, if B3If the value of (b) exceeds the set threshold value, alarm indication information is inserted into the FlexE client layer of the client service 4.
In one embodiment, the method further comprises:
step 240: under the condition that the error code is detected, calculating the error rate of the client service of the Flexe client layer, the MTN channel layer or the SPN channel layer according to the time slot distribution of the client service of the Flexe client layer, the MTN channel layer or the SPN channel layer in each instance of each PHY and the error code parameter, wherein the error code parameter comprises the error code number or the error code rate;
step 250: and stopping inserting the alarm indication information into the associated Flexe client layer, MTN channel layer or SPN channel layer under the condition that the error rate is less than a fifth threshold value.
In this embodiment, when an error is detected in a PHY (or a 100G instance thereof), an MTN segment layer, or an SPN segment layer, the bit error rate of the client service is calculated according to the time slot distribution and the error code parameter (the number of error codes or the bit error rate) of the client service in each instance of each PHY in the FlexE client layer, the MTN channel layer, or the SPN channel layer, and the bit error rate is compared with a set fifth threshold, so as to determine whether the bit error rate is out of limit or the signal degradation is disappeared, if so, the insertion of corresponding alarm indication information into the associated FlexE client layer, MTN channel layer, or SPN channel layer is stopped, the normal transmission of the client service is recovered in time, and the processing efficiency is ensured.
In one embodiment, the alarm indication information is a 66-bit block; the 66-bit block includes one of: a local fault block, an error control block, a custom control block, and an operation maintenance management OAM block containing the alarm indication information.
In this embodiment, the alarm indication information may be represented by a 66bit block, such as an LF control block, an error control block, a newly defined control block, or an OAM block containing the alarm indication information.
FIG. 10 is a diagram illustrating a format of a local error control block according to an embodiment, wherein alarm indication information is included.
FIG. 11 is a diagram illustrating an error control block format according to an embodiment, wherein alarm indication information is included.
FIG. 12 is a diagram illustrating a format of a custom control block according to an embodiment, in which alarm indication information is included.
Fig. 13 is a schematic diagram of an OAM block format according to an embodiment, where alarm indication information is included.
In one embodiment, step 230 includes:
and replacing or inserting the data of the client service transmitted in the associated Flexe client layer, MTN channel layer or SPN channel layer with the alarm indication information.
In this embodiment, the alarm indication information may be inserted by replacing the transmitted data of the client service with the alarm indication information, or by inserting the alarm indication information into the data of the client service, for example, inserting an OAM block.
In some embodiments, one or more of the PHY, the segment layer of the MTN, and the segment layer of the SPN may be detected to detect whether an error is generated, a bit error rate violation or a signal degradation may occur in one or more of the FlexE client layer, the MTN channel layer, or the SPN channel layer, and accordingly, the associated layer to which the alarm indication information needs to be inserted may also be one or more of the FlexE client layer, the MTN channel layer, or the SPN channel layer.
The following description will be given taking an example in which PHY is detected and alarm indication information is inserted in a FlexE client layer.
Step 1: detecting a PHY (and each 100G instance thereof), a segment layer of an MTN, or a segment layer of an SPN;
step 2: detecting one or more faults in the PHY, such as signal loss, PHY auto-negotiation failure, etc., alarm indication information is inserted into the FlexE client layer associated with the fault. Taking fig. 6 as an example, customer service 1 (indicated by dotted lines), customer service 2 (indicated by dashed lines), and customer service 3 (indicated by solid lines) are all accessed at node a, transmitted to node D via nodes B and C. The nodes A, B, C, D are connected by a FlexE group, which consists of two PHYs. Here, the client service 1 and the client service 2 are transmitted through the PHY1, and the client service 3 is transmitted through the PHY 2. If PHY1 failure is detected, then it is necessary to insert alarm indication information into the FlexE client layers corresponding to client service 1 and client service 2, while client service 3 can still be transmitted normally to the D node since PHY2 is normal.
Similarly, if bit error rate violation or signal degradation is detected in the PHY, corresponding alarm indication information is inserted into the FlexE client layer associated with the bit error rate violation or signal degradation. Whether the error code degree shown in the PHY reaches the error code rate out-of-limit or the signal degradation can be judged according to the set threshold.
Alternatively, if an error is detected in the PHY, it may be further determined whether the FlexE client layer generates an error rate violation or a signal degradation, and if so, corresponding alarm indication information may be inserted into the FlexE client layer associated with the error rate violation or the signal degradation. The process of determining whether the FlexE client layer produces an error rate violation or signal degradation may be: and calculating the error rate of the client service of the Flexe client layer according to the time slot distribution and the error code parameter of the client service of the Flexe client layer in each instance of each PHY, and comparing the error rate with a threshold value to judge whether the error rate exceeds the limit or the signal degradation occurs.
And step 3: and if the fault is detected, stopping inserting the alarm indication information into the FlexE client layer associated with the fault.
Similarly, if the bit error rate is detected to be out of limit or the signal degradation disappears, the alarm indication information is stopped from being inserted into the FlexE client layer, the MTN channel layer or the SPN channel layer associated with the fault. Whether the error code degree shown in the PHY is lower than the error code rate out-of-limit or the signal is degraded can be judged according to the set threshold.
Or stopping inserting the alarm indication information into the associated Flexe client layer if detecting that the error rate of the client service of the Flexe client layer is out of limit or the signal degradation disappears. The process of determining that the error rate of the client traffic of the FlexE client layer is out of limit or the signal degradation disappears may be: and calculating the error rate of the client service of the Flexe client layer according to the time slot distribution and the error code parameter of the client service of the Flexe client layer in each instance of each PHY, and comparing the error rate with a threshold value to judge whether the error rate exceeds the limit or whether the signal degradation disappears.
The embodiment of the application also provides an alarm device. Fig. 14 is a schematic structural diagram of an alarm device according to an embodiment. As shown in fig. 14, the warning device includes: a detection module 310 and an alert module 320.
A detection module 310 configured to detect a PHY of a flexible ethernet FlexE, a segment layer of an MTN, or a segment layer of an SPN;
and the alarm module 320 is configured to insert alarm indication information into the associated FlexE client layer, MTN channel layer or SPN channel layer when a fault, bit error rate out-of-limit or signal degradation is detected.
The alarm device of the embodiment inserts the alarm indication information into the FlexE client layer or the channel layer associated with the fault or the error code, so that the processing of other normal client services is not influenced, and the reliability and the flexibility of the alarm are improved.
In one embodiment, the fault includes at least one of: signal loss, link interruption, PHY auto-negotiation failure, block out-of-lock, alignment marker lock failure, frame loss, frame out-of-sync, multiframe loss, multiframe out-of-sync, FlexE group number inconsistency, FlexE bitmap inconsistency, PHY number inconsistency, instance number inconsistency, and skew between instances of different PHYs exceeds a skewed cache, resulting in a state error of the PCS state of the physical coding sublayer.
In an embodiment, the detecting module 310 is specifically configured to:
determining whether an error rate violation or a signal degradation occurs in the PHY, the segment layer of the MTN, or the segment layer of the SPN based on a set threshold.
In one embodiment, the detection module 310 includes:
a first determination unit configured to determine that signal degradation is generated in the PHY, the segment layer of the MTN, or the segment layer of the SPN, when an error rate of the PHY, the segment layer of the MTN, or the segment layer of the SPN is greater than or equal to a first threshold value and less than a second threshold value;
determining that an error rate overrun occurs in the PHY, the segment layer of the MTN, or the segment layer of the SPN if the error rate of the PHY, the segment layer of the MTN, or the segment layer of the SPN is greater than or equal to the second threshold value.
In one embodiment, the alert module 320 is further configured to:
and under the condition that the fault, the bit error rate out-of-limit or the signal degradation disappears is detected, stopping inserting the alarm indication information into the associated Flexe client layer, the MTN channel layer or the SPN channel layer.
In one embodiment, the alarm indication information is a 66-bit block; the 66-bit block includes one of: a local fault block, an error control block, a custom control block, and an operation maintenance management OAM block containing the alarm indication information.
In an embodiment, the alarm module 320 is specifically configured to:
and replacing or inserting the data of the client service transmitted in the associated Flexe client layer, MTN channel layer or SPN channel layer with the alarm indication information.
The alarm device proposed by the present embodiment and the alarm method proposed by the above embodiments belong to the same inventive concept, and technical details that are not described in detail in the present embodiment can be referred to any of the above embodiments, and the present embodiment has the same beneficial effects as the execution of the alarm method.
The embodiment of the application also provides an alarm device. Fig. 15 is a schematic structural diagram of an alarm device according to another embodiment. As shown in fig. 15, the warning device includes: a second detection module 510, an error code determination module 520, and a second alarm module 530.
A second detection module 510 configured to detect PHY of FlexE, segment layer of MTN, or segment layer of SPN;
an error code determination module 520 configured to determine whether an associated FlexE client layer, MTN channel layer, or SPN channel layer generates an error rate violation or signal degradation if an error code is detected;
and a second alarm module 530 configured to insert alarm indication information into the associated FlexE client layer, MTN channel layer, or SPN channel layer in case of an error rate violation or signal degradation.
The alarm device of the embodiment inserts the alarm indication information into the FlexE client layer or the channel layer associated with the fault or the error code, so that the processing of other normal client services is not influenced, and the reliability and the flexibility of the alarm are improved.
In an embodiment, the error code determining module 520 is specifically configured to:
calculating the error rate of the client service of the Flexe client layer, the MTN channel layer or the SPN channel layer according to the time slot distribution of the client service of the Flexe client layer, the MTN channel layer or the SPN channel layer in each PHY or each instance and error code parameters, wherein the error code parameters comprise the number of error codes or the error code rate;
determining that signal degradation occurs in the associated Flexe client layer, MTN channel layer or SPN channel layer when the error rate is greater than or equal to a third threshold value and less than a fourth threshold value;
determining that an error rate violation occurs in the associated Flexe client layer, MTN channel layer, or SPN channel layer if the error rate is greater than or equal to the fourth threshold.
In one embodiment, the error determination module 520 includes an error rate calculation module configured to:
determining the weight corresponding to each PHY or each instance according to the time slot distribution of the client service of the Flexe client layer, the MTN channel layer or the SPN channel layer in each PHY or each instance;
and calculating a weighted average value of error code parameters of each PHY or each example based on the weight corresponding to each PHY or each example to obtain the error rate of the client service of the Flexe client layer, the MTN channel layer or the SPN channel layer, wherein each PHY or each example of each example is the error rate of the client service of each PHY or each example of each example.
In an embodiment, the error code determination module 520 is further configured to:
under the condition of detecting error codes, calculating the error rate of the client services of the Flexe client layer, the MTN channel layer or the SPN channel layer according to the time slot distribution of the client services of the Flexe client layer, the MTN channel layer or the SPN channel layer in each instance of each PHY and error code parameters, wherein the error code parameters comprise the number of error codes or the error rate;
the alert module 320 is further configured to:
and stopping inserting the alarm indication information into the associated Flexe client layer, MTN channel layer or SPN channel layer under the condition that the error rate is smaller than a fifth threshold value.
In one embodiment, the alarm indication information is a 66-bit block;
the 66-bit block includes one of:
a local fault block, an error control block, a custom control block, and an operation maintenance management OAM block containing the alarm indication information.
In an embodiment, the alarm module 530 is specifically configured to:
and replacing or inserting the data of the client service transmitted in the associated Flexe client layer, MTN channel layer or SPN channel layer with the alarm indication information.
The alarm device proposed by the present embodiment and the alarm method proposed by the above embodiments belong to the same inventive concept, and technical details that are not described in detail in the present embodiment can be referred to any of the above embodiments, and the present embodiment has the same beneficial effects as the execution of the alarm method.
The embodiment of the application also provides network equipment. The alerting method may be performed by an alerting device, which may be implemented in software and/or hardware and integrated in the network device.
Fig. 16 is a schematic hardware structure diagram of a network device according to an embodiment. As shown in fig. 16, the network device provided in this embodiment includes: a processor 510 and a storage device 520. The number of the processors in the network device may be one or more, fig. 16 illustrates one processor 510, the processor 510 and the storage device 520 in the device may be connected by a bus or in other manners, and fig. 16 illustrates the connection by a bus.
The one or more programs are executed by the one or more processors 510 to cause the one or more processors to implement the alert method of any of the embodiments described above.
The storage device 520 in the network device, which is a computer-readable storage medium, may be used to store one or more programs, such as software programs, computer-executable programs, and modules, corresponding to the program instructions/modules of the alerting method according to the embodiments of the present invention (for example, the modules in the alerting device shown in fig. 14, including the detecting module 310 and the alerting module 320). The processor 510 executes various functional applications and data processing of the network device by executing software programs, instructions and modules stored in the storage device 520, namely, implements the alarm method in the above method embodiments.
The storage device 520 mainly includes a storage program area and a storage data area, wherein the storage program area can store an operating system and an application program required by at least one function; the storage data area may store data created according to the use of the device, etc. (alarm indication information, thresholds, etc. as in the above-described embodiments). Further, the storage 520 may include high speed random access memory and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, storage 520 may further include memory located remotely from processor 510, which may be connected to a network device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
And, when one or more programs included in the above network device are executed by the one or more processors 510, the following operations are implemented: detecting PHY of the flexible Ethernet Flexe, a segment layer of MTN or a segment layer of SPN; and under the condition that a fault, an out-of-limit bit error rate or signal degradation is detected, inserting alarm indication information into a Flexe client layer, an MTN channel layer or an SPN channel layer associated with the fault, the out-of-limit bit rate or the signal degradation.
The network device proposed by the present embodiment and the alarm method proposed by the above embodiment belong to the same inventive concept, and the technical details that are not described in detail in the present embodiment can be referred to any of the above embodiments, and the present embodiment has the same beneficial effects as the execution of the alarm method.
Embodiments of the present application also provide a storage medium containing computer-executable instructions for performing an alert method when executed by a computer processor. The method comprises the following steps: detecting PHY of the flexible Ethernet Flexe, a segment layer of MTN or a segment layer of SPN;
and under the condition that a fault, an out-of-limit bit error rate or signal degradation is detected, inserting alarm indication information into a Flexe client layer, an MTN channel layer or an SPN channel layer associated with the fault, the out-of-limit bit rate or the signal degradation.
Through the above description of the embodiments, those skilled in the art will appreciate that the present application can be implemented by software, general hardware, or hardware. Based on such understanding, the technical solution of the present application may be embodied in the form of a software product, and the computer software product may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes a plurality of instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the method according to any embodiment of the present application.
The above description is only exemplary embodiments of the present application, and is not intended to limit the scope of the present application.
Any logic flow block diagrams in the figures of this application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions. The computer program may be stored on a memory. The memory may be of any type suitable to the local technical environment and may be implemented using any suitable data storage technology, such as, but not limited to, Read Only Memory (ROM), Random Access Memory (RAM), optical storage devices and systems (digital versatile disks, DVDs, or CD discs), etc. The computer readable medium may include a non-transitory storage medium. The data processor may be of any type suitable to the local technical environment, such as but not limited to general purpose computers, special purpose computers, microprocessors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), programmable logic devices (FGPAs), and processors based on a multi-core processor architecture.
The foregoing has provided by way of exemplary and non-limiting examples a detailed description of exemplary embodiments of the present application. Various modifications and adaptations to the foregoing embodiments may become apparent to those skilled in the relevant arts in view of the following drawings and the appended claims without departing from the scope of the invention. Therefore, the proper scope of the invention is to be determined according to the claims.

Claims (17)

1. An alert method, comprising:
detecting a physical layer device PHY of the flexible Ethernet Flexe, a segment layer of a metropolitan area transmission network (MTN) or a segment layer of a Sliced Packet Network (SPN);
and under the condition that a fault, an out-of-limit bit error rate or signal degradation is detected, inserting alarm indication information into a Flexe client layer, an MTN channel layer or an SPN channel layer associated with the fault, the out-of-limit bit rate or the signal degradation.
2. The method of claim 1, wherein the fault comprises at least one of:
loss of signal, link interruption, PHY auto-negotiation failure, block out-of-lock, alignment marker not locked, frame loss, frame out-of-sync, multiframe loss, multiframe out-of-sync, FlexE group number inconsistency, FlexE bitmap inconsistency, PHY number inconsistency, instance number inconsistency, buffering of skew between instances of different PHYs beyond skew, and conditions that lead to PCS state errors in the physical coding sublayer.
3. The method according to claim 1, wherein the detecting the PHY of FlexE, the segment layer of MTN, or the segment layer of SPN comprises:
determining whether an error rate violation or a signal degradation occurs in the PHY, the segment layer of the MTN, or the segment layer of the SPN based on a set threshold.
4. The method of claim 3, wherein the determining whether an error rate violation or a signal degradation occurs in the PHY, the segment layer of the MTN, or the segment layer of the SPN based on the set threshold comprises:
determining that signal degradation is generated in the PHY, the segment layer of the MTN, or the segment layer of the SPN in a case where an error rate of the PHY, the segment layer of the MTN, or the segment layer of the SPN is greater than or equal to a first threshold value and less than a second threshold value;
determining that an error rate overrun occurs in the PHY, the segment layer of the MTN, or the segment layer of the SPN if the error rate of the PHY, the segment layer of the MTN, or the segment layer of the SPN is greater than or equal to the second threshold value.
5. The method of claim 1, further comprising:
and under the condition that the fault, the bit error rate out-of-limit or the signal degradation disappears is detected, stopping inserting the alarm indication information into the associated Flexe client layer, the MTN channel layer or the SPN channel layer.
6. The method according to any of claims 1-5, wherein the alarm indication information is a 66-bit block;
the 66-bit block includes one of:
a local fault block, an error control block, a custom control block, and an operation maintenance management OAM block containing the alarm indication information.
7. The method according to any one of claims 1-5, wherein said inserting an alarm indication message into a Flexe client layer, a MTN channel layer or a SPN channel layer associated with said fault, bit error rate violation or signal degradation comprises:
and replacing or inserting the data of the client service transmitted in the associated Flexe client layer, MTN channel layer or SPN channel layer with the alarm indication information.
8. An alert method, comprising:
detecting PHY of Flexe, a segment layer of MTN or a segment layer of SPN;
determining whether the associated Flexe client layer, MTN channel layer or SPN channel layer generates bit error rate out-of-limit or signal degradation under the condition of detecting the error code;
and in the case of error rate out-of-limit or signal degradation, inserting alarm indication information into the associated Flexe client layer, MTN channel layer or SPN channel layer.
9. The method of claim 8, wherein determining whether the associated FlexE client layer, MTN channel layer, or SPN channel layer produces an error rate violation or a signal degradation comprises:
calculating the error rate of the client service of the Flexe client layer, the MTN channel layer or the SPN channel layer according to the time slot distribution of the client service of the Flexe client layer, the MTN channel layer or the SPN channel layer in each PHY or each instance and error code parameters, wherein the error code parameters comprise the number of error codes or the error code rate;
determining that signal degradation occurs in the associated Flexe client layer, MTN channel layer or SPN channel layer when the error rate of client traffic of the Flexe client layer, MTN channel layer or SPN channel layer is greater than or equal to a third threshold value and less than a fourth threshold value;
and determining that an error rate is out-of-limit in the associated FlexE client layer, MTN channel layer, or SPN channel layer when the error rate of the client traffic of the FlexE client layer, the MTN channel layer, or the SPN channel layer is greater than or equal to the fourth threshold value.
10. The method according to claim 9, wherein the calculating the bit error rate of the client traffic of the FlexE client layer, the MTN channel layer or the SPN channel layer according to the slot distribution of the client traffic of the FlexE client layer, the MTN channel layer or the SPN channel layer in each PHY or each instance and the error parameters comprises:
determining the weight corresponding to each PHY or each instance according to the time slot distribution of the client service of the Flexe client layer, the MTN channel layer or the SPN channel layer in each PHY or each instance;
and calculating a weighted average value of error code parameters of each PHY or each example based on the weight corresponding to each PHY or each example to obtain the error rate of the client service of the Flexe client layer, the MTN channel layer or the SPN channel layer.
11. The method of claim 8, further comprising:
under the condition of detecting error codes, calculating the error rate of the client services of the Flexe client layer, the MTN channel layer or the SPN channel layer according to the time slot distribution of the client services of the Flexe client layer, the MTN channel layer or the SPN channel layer in each PHY or each instance and error code parameters, wherein the error code parameters comprise the number of error codes or the error rate;
and stopping inserting the alarm indication information into the associated Flexe client layer, MTN channel layer or SPN channel layer under the condition that the error rate is smaller than a fifth threshold value.
12. The method according to any of claims 8-11, wherein the alarm indication information is a 66-bit block;
the 66-bit block includes one of:
a local fault block, an error control block, a custom control block, and an operation maintenance management OAM block containing the alarm indication information.
13. The method according to any of claims 8-11, wherein said inserting alarm indication information into said associated FlexE client layer, MTN channel layer or SPN channel layer comprises:
and replacing or inserting the data of the client service transmitted in the associated Flexe client layer, MTN channel layer or SPN channel layer with the alarm indication information.
14. An alert device, comprising:
the first detection module is used for detecting PHY of Flexe, a section layer of MTN or a section layer of a Slicing Packet Network (SPN);
and the first alarm module is used for inserting alarm indication information into the associated Flexe client layer, MTN channel layer or SPN channel layer under the condition of detecting faults, bit error rate out-of-limit or signal degradation.
15. An alert device, comprising:
the second detection module is used for detecting PHY of Flexe, a section layer of MTN or a section layer of SPN;
an error code determination module configured to determine whether an associated FlexE client layer, MTN channel layer, or SPN channel layer generates an error rate violation or signal degradation when an error code is detected;
and the second alarm module is used for inserting alarm indication information into the associated Flexe client layer, the MTN channel layer or the SPN channel layer under the condition of generating bit error rate out-of-limit or signal degradation.
16. A network device, comprising:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the alert method of any one of claims 1-7 or the alert method of any one of claims 8-13.
17. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the alerting method of any one of claims 1-7 or the alerting method of any one of claims 8-13.
CN202010591985.5A 2020-06-24 2020-06-24 Alarm method, device, network equipment and storage medium Pending CN112511330A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022227640A1 (en) * 2021-04-29 2022-11-03 华为技术有限公司 Data processing method for flexible ethernet, and related apparatus
WO2023150914A1 (en) * 2022-02-08 2023-08-17 北京小米移动软件有限公司 Capability indication method and apparatus, and capability determination method and apparatus
WO2023197770A1 (en) * 2022-04-15 2023-10-19 华为技术有限公司 Fault notification method and apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022227640A1 (en) * 2021-04-29 2022-11-03 华为技术有限公司 Data processing method for flexible ethernet, and related apparatus
WO2023150914A1 (en) * 2022-02-08 2023-08-17 北京小米移动软件有限公司 Capability indication method and apparatus, and capability determination method and apparatus
WO2023197770A1 (en) * 2022-04-15 2023-10-19 华为技术有限公司 Fault notification method and apparatus

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