Method and apparatus for self-adjustable design for handling event flows
View Patent ↗The present invention contemplates an apparatus and a method for limiting the number of specified messages placed onto a network thus to improve network performance. An element management system, upon detecting that a defined threshold has been exceeded for specified types of messages, determines which network element is generating the greatest number of such messages. Thereafter, the element management system instructs the network element that is generating the largest number of alarm messages to cease transmitting a specified type of alarm message. In an alternate embodiment of the invention, if the event flow rate is still too high, the element management system may instruct the cross connect network element to stop sending all threshold types of alarms. Finally, if the event flow rate is still too high, the element management system may cause all QoS alarms from the one network element to not be transmitted. Alternatively, the threshold alarms from other network elements may be muted for a period to reduce the overall event flow rate. For each embodiment, the element management system suspends the flow of messages for a defined period of time. For example, in one preferred embodiment, the select type of QoS signal is muted for a period of 600 seconds. In an alternate embodiment of the invention, a network element is allowed to start transmitting the suspended QoS signals if the overall alarm rate for the suspended QoS signals falls below a lower threshold value.
1. A method for managing a plurality of network elements, comprising:
receiving a plurality of alarms from each of the plurality of network elements, wherein the alarms belong to various types;
determining which of the plurality of network elements is generating the greatest number of alarms; and
instructing the network element generating the greatest number of alarms to stop transmitting the alarms.
2. The method of claim 1 wherein the network element is instructed to not transmit a particular type of alarm for a predetermined period of time.
3. The method of claim 2 wherein the particular type of alarm comprises a threshold type alarm operable to be compared against an event flow rate associated therewith.
4. The method of claim 2 wherein the particular type of alarm comprises a quality of service (QoS) alarm.
5. The method of claim 2 wherein the network element instructed to stop transmitting the particular type of alarm is operable to store the particular type of alarm for the predetermined period of time.
6. The method of claim 5 further comprising the step of instructing the network element to retransmit the particular type of alarm after expiration of the predetermined period of time.
7. The method of claim 1 wherein the network element is allowed to retransmit the alarms depending on satisfying an event flow rate condition associated therewith.
8. The method of claim 1 wherein the step of instructing the network element to stop transmitting the alarms comprises instructing the network element to stop transmitting the alarms based on a predetermined precedence of suspension relating to the types of alarms.
9. An element management system, comprising:
a processor;
a transceiver operable to be coupled to a plurality of network elements, wherein each network element is operable to transmit alarm signals to the element management system, the alarm signals relating to various types of alarms generated in the network elements; and
a store for storing computer instructions that define operational logic of the element management system, the computer instructions, upon execution by the processor, for prompting the element management system to issue a signal to a network element to cause it to stop sending alarm signals based on a predetermined precedence of suspension of transmission.
10. The element management system of claim 9 wherein the computer instructions prompt the processor to send a signal to the network element to instruct it to stop sending alarm signals relating to only a specific type of threshold crossing alarm.
11. The element management system of claim 9 wherein the computer instructions prompt the processor to send a signal to the network element to instruct it to stop sending alarm signals relating to all threshold crossing alarms.
12. The element management system of claim 9 wherein the computer instructions prompt the processor to send a signal to the network element to instruct it to stop sending alarm signals relating to all quality of service (QoS) alarms.
13. The element management system of claim 9 wherein the Computer instructions prompt the processor to send a signal to the network element to instruct it to stop sending alarm signals based on a precedence of suspension determined in the following order:
specified types of threshold alarms;
all threshold alarms;
all QoS alarms; and
all alarms.
14. The element management system of claim 9 wherein the computer instructions prompt the processor to send a signal to the network element to instruct it to stop sending alarm signals relating to threshold crossing alarms and quality of service (QoS) alarms such that the threshold crossing alarms are suspended prior to the QoS alarms.
15. A method of managing alarm signal flow generated by a plurality of network elements, the method comprising:
monitoring alarm signals by an element management system coupled to the plurality of network elements, wherein the alarm signals are transmitted by each network element and relate to various types of alarms generated thereat; and
instructing a network element by the element management system to suspend transmission of the alarm signals based on a predetermined order of precedence, if the alarm signal flow from the network element exceeds a flow rate associated therewith.
16. The method of claim 15 wherein a network element is instructed by the element management system to not transmit alarm signals relating to a particular type of alarm for a predetermined period of time.
17. The method of claim 15 further comprising the step of instructing a network element by the element management system to retransmit the alarm signals after the network element was initially instructed to not transmit the alarm signals.
18. The method of claim 15 wherein the predetermined order of precedence for suspending transmission comprises the following order: specified types of threshold alarms; all threshold alarms; all quality of service (QoS) alarms; and all alarms.