Split-brain resolution in virtual network function components
An example operation may include a system, comprising one or more of: receiving a heartbeat message from a peer VNFCI indicating a current operational state of active, when the VNFCI is in active state, determining a first network isolation indicator, by a network isolation subsystem, by checking if the VNFCI was network isolated while becoming active, sending a first heartbeat message to the peer VNFCI indicating a current operational state as active and network isolation boolean since active, obtaining a second network isolation indicator of the peer VNFCI from a heartbeat message datastore, sending a second heartbeat message to the peer VNFCI indicating the current operational state as active and a desired operational state as active when at least one of: the second network isolation indicator was yes, and the first network isolation indicator was no, and sending a third heartbeat message to the peer VNFCI indicating the current operational state as active and a desired operational state as active when at least one of: the VNFCI is not the preferred standby instance, the second network isolation indicator was no, and the first network isolation indicator was no.
1. A system comprising:
a processor; and
a memory to store instructions that when executed by the processor cause the processor to:
receive, by a virtual network function component interface (VNFCI), a heartbeat message from a peer VNFCI indicating that the peer VNFCI has a current operational state of Active,
identify that the VNFCI was not network isolated while becoming active;
send a heartbeat acknowledgement message to the peer VNFCI indicating the current operational state of Active and including a first network isolation indicator indicating a network isolation status of the VNFCI,
retrieve a second network isolation indicator associated with the peer VNFCI from a heartbeat message datastore,
send a second heartbeat message to the peer VNFCI indicating the current operational state of Active and a desired operational state of Active when:
the first network isolation indicator indicates that the VNFCI was not network isolated, and
the second network isolation indicator indicates that the peer VNFCI was network isolated; and
maintain, by the VNFCI, the current operational state of Active.
2. The system of claim 1 , wherein the first network isolation indicator and the second network isolation indicator are boolean values.
3. The system of claim 1 , wherein the heartbeat message from the peer VNFCI indicates a split-brain condition between the VNFCI and the peer VNFCI.
4. The system of claim 1 , wherein the processor further is to:
store the heartbeat message from the peer VNFCI in the heartbeat message datastore.
5. The system of claim 1 , wherein, when the processor is to retrieve the second network isolation indicator, the processor further is to:
retrieve the second network isolation indicator after the heartbeat acknowledgement message to the peer VNFCI has been sent.
6. The system of claim 1 , wherein, when the processor is to retrieve the second network isolation indicator from a heartbeat message datastore, the processor further is to:
retrieve the second network isolation indicator from a last heartbeat message stored in the heartbeat message datastore.
7. The system of claim 1 , wherein the processor further is to:
communicate management directives associated with a Virtual Network Function Manager (VNFM) in communication with the VNFC or an element management system (EMS) communication with the VNFC based on the desired operational state of Active.
8. A method, comprising:
receiving, by a virtual network function component interface (VNFCI) a heartbeat message from a peer VNFCI indicating that the peer VNFCI has a current operational state of Active;
identifying, by the VNFCI, that the VNFCI was not network isolated while becoming active;
sending, by the VNFCI, a heartbeat acknowledgement message to the peer VNFCI indicating the current operational state of Active and including a first network isolation indicator indicating a network isolation status of the VNFCI;
retrieving, by the VNFCI, a second network isolation indicator associated with the peer VNFCI from a heartbeat message datastore;
sending, by the VNFCI, a second heartbeat message to the peer VNFCI indicating the current operational state of Active and a desired operational state of Active when:
the first network isolation indicator indicates that the VNFCI was not network isolated, and
the second network isolation indicator indicates that the peer VNFCI was network isolated; and
maintain, by the VNFCI, the current operational state of Active.
9. The method of claim 8 , wherein the first network isolation indicator and the second network isolation indicator are boolean values.
10. The method of claim 8 , wherein the heartbeat message from the peer VNFCI indicates a split-brain condition between the VNFCI and the peer VNFCI.
11. The method of claim 8 , further comprising:
storing the heartbeat message from the peer VNFCI in the heartbeat message datastore.
12. The method of claim 8 , wherein the retrieving the second network isolation indicator further comprises:
retrieving the second network isolation indicator after the heartbeat acknowledgement message to the peer VNFCI has been sent.
13. The method of claim 12 , wherein the retrieving the second network isolation indicator from a heartbeat message datastore further comprises:
retrieve the second network isolation indicator from a last heartbeat message stored in the heartbeat message datastore.
14. The method of claim 8 , further comprising:
communicating management directives associated with a Virtual Network Function Manager (VNFM) in communication with the VNFC or an element management system (EMS) communication with the VNFC based on the desired operational state of Active.
15. A non-transitory computer readable medium comprising instructions that when read by a processor of a virtual network function component interface (VNFCI) cause the processor to perform:
receiving a heartbeat message from a peer VNFCI indicating that the peer VNFCI has a current operational state of Active;
identifying that the VNFCI was not network isolated while becoming active;
sending a heartbeat acknowledgement message to the peer VNFCI indicating the current operational state of Active and including a first network isolation indicator indicating a network isolation status of the VNFCI;
retrieving a second network isolation indicator associated with the peer VNFCI from a heartbeat message datastore;
sending a second heartbeat message to the peer VNFCI indicating the current operational state of Active and a desired operational state of Active when:
the first network isolation indicator indicates that the VNFCI was not network isolated, and
the second network isolation indicator indicates that the peer VNFCI was network isolated; and
maintain, by the VNFCI, the current operational state of Active.
16. The non-transitory computer readable medium of claim 15 , wherein the first network isolation indicator and the second network isolation indicator are boolean values.
17. The non-transitory computer readable medium of claim 15 , wherein the heartbeat message from the peer VNFCI indicates a split-brain condition between the VNFCI and the peer VNFCI.
18. The non-transitory computer readable medium of claim 15 , wherein the instructions further cause the processor to perform:
storing the heartbeat message from the peer VNFCI in the heartbeat message datastore.
19. The non-transitory computer readable medium of claim 15 ,
wherein the retrieving the second network isolation indicator further comprises:
retrieving the second network isolation indicator after the heartbeat acknowledgement message to the peer VNFCI has been sent.
20. The non-transitory computer readable medium of claim 19 ,
wherein the retrieving the second network isolation indicator from a heartbeat message datastore further comprises:
retrieve the second network isolation indicator from a last heartbeat message stored in the heartbeat message datastore.